Emerson Fisher 299H User manual

November 2002
299H Series
Instruction Manual
Form 5497
D102684X012
299H Series Pressure Reducing Regulators
Figure 1. 299H Series Pressure Reducing Regulator
Introduction
Installation, operation, and maintenance
procedures performed by unqualified
personnel may result in improper adjust-
ment and unsafe operation. Either condi-
tion may result in equipment damage or
personal injury. Use qualified personnel
when installing, operating, and maintain-
ing the 299H Series regulators.
Scope of Manual
This instruction manual provides installation,
adjustment, and maintenance instructions, and a parts
list for the 299H Series regulators. Complete
instructions and parts lists for the 67 Series filtered
pilot supply regulator, and other Fisher equipment are
found in separate instruction manuals.
Description
The 299H Series pressure reducing regulators provide
a broad capacity for controlled pressure ranges and
capacities in a wide variety of distribution, industrial,
and commercial applications. A 299H Series regulator
has a pilot integrally mounted to the actuator casing.
The 299H Series regulators can handle inlet pressures
up to 175 psi (12,1 bar) depending on orifice size.
The integral token relief on the Type 299HR regulator is
located in the pilot and opens to relieve minor
overpressure conditions.
Specifications
Since a pilot-operated regulator is
constructed of both a pilot and a main
valve, do not exceed the maximum inlet
pressure shown on the nameplate.
Specifications for 299H Series constructions are given
on page 2. Some specifications for a given regulator
as it originally comes from the factory are stamped on
a nameplate located on the actuator upper casing.
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299H Series
2
Specifications
1. The pressure/temperature limits in this manual and any applicable standard or code limitation should not be exceeded.
2. For optimum performance, a pilot supply regulator may be installed in the pilot supply tubing between the main valve and pilot.
3. For inches w.c. use a pilot supply regulator if actual inlet pressure varies more than ±20 psi (±1,4 bar) and published accuracy is required.
4. A pilot supply regulator or a P590 Series filter (only one may be used, not both) may be ordered with the Type 299H, but not both.
Available Configurations
Type 299H: Pilot-Operated pressure reducing
regulator with a pilot integrally mounted to the
actuator casing
Type 299HR: A Type 299H with a token internal
relief valve to relieve minor overpressure caused
by thermal expansion.
Body Size And End Connection Styles
See table 1
Maximum Operating Pressure(1) by Orifice Size
1/4 x 3/8-inch (6,4 x 9,5 mm) . . 175 psig (12,1 bar)
3/8-inch (9,5 mm) . . . . . . . . . . . 175 psig (12,1 bar)
1/2-inch (12,7 mm) . . . . . . . . . . 175 psig (12,1 bar)
3/4-inch (19,1 mm) . . . . . . . . . . 150 psig (10,3 bar)
7/8-inch (22,2 mm) . . . . . . . . . . . 125 psig (8,6 bar)
1-inch (25,4 mm) . . . . . . . . . . . . 100 psig (6,9 bar)
1-3/16-inch (30,2 mm) . . . . . . . . . 80 psig (5,5 bar)
Maximum Emergency Outlet Pressure(1)
66 psig (4,6 bar)
Outlet (Control) Pressure Ranges(1)(2)
See table 2
Pressure Control Accuracy (Fixed Factor)(PFM)
±1%(3) of absolute control pressure
Minimum Differential Pressure For Full Stroke
1.5 psi (0,10 bar)
Control Line Connections
3/4-inch NPT
Temperature Capabilities(1)
-20° to 150°F (-29° to 66°C)
Approximate Weight
21 pounds (9,5 kg)
Fixed Restriction Sizes
0.044-inch (1,12 mm), red (standard gain)
0.071-inch (1,80 mm), green (low gain)
0.082-inch (2,08 mm), blue (lower gain)
Options
• Filter(3):A P590 Series filter installed in the
pilot supply tubing between main body and pilot
• Filtered pilot supply regulator(3)(4):A 67 Series
supply regulator with an internal 40 micron filter
Table 1. Body Sizes and End Connection Styles
,EZISYDOB
)ND(SEHCNI
ELYTSNOITCENNOCDNEDNALAIRETAMYDOB
norItsaCnorIelitcuDleetS
)23(4/1-1
)04(2/1-1
dewercsTPN
dewercsTPN
---
dewercsTPN
---
dewercsTPN
)05(2 521ssalCISNA;dewercsTPN
)1(
FF
degnalfFR052dna
dnaFF521ssalCISNA;dewercsTPN
degnalf61dna01NPdna;degnalfFR052
dnaFR051ssalCISNA;dewercsTPN
degnalf61NPdna;degnalfFR003
.)mm452(sehcni-01ro)mm191(sehcni-5.7fonoisnemidecaf-ot-ecafahtiwelbaliavasiegnalfsihT.1
Table 2. Outlet Pressure Ranges
)LORTNOC(TELTUO
EGNARERUSSERP
REBMUNEPYTGNIRPSLORTNOCTOLIP
H992RH992rebmuNtraProloC ,htgneLeerF
)mm(sehcnI
,retemaiDeriW
)mm(sehcnI
.c.wsehcni-6ot5.3
.c.wsehcni-9ot5
.c.wsehcni-02ot7
.c.wsehcni-04ot61
)rabm51ot9(
)1(
)rabm22ot21(
)1(
)rabm94ot71(
)1(
)rabm99ot04(
)1(
X
X
X
X
X
X
X
X
2100T70731T
2100T98531T
2100X2113N1
222727314B1
kcalB
wolleY
revliS
elpruP
)2,74(68.1
)0,25(50.2
)4,55(81.2
)8,35(21.2
)4,1(550.0
)3,1(150.0
)9,1(570.0
)3,2(290.0
gisp52.3ot1
gisp6ot57.2
gisp61ot5
gisp53ot41
gisp06ot03
)rab22,0ot960,0(
)rab14,0ot91,0(
)rab01,1ot43,0(
)rab4,2ot79,0(
)rab41,4ot70,2(
X
X
X
X
X
X
X
2100T39531T
2100T17631T
2100T00631T
2100T17731T
2100T69041T
eulbthgiL
egnarO
deR
cniZ
neerG
)8,35(21.2
)1,16(04.2
)3,35(01.2
)6,45(51.2
)9,96(57.2
)7,2(501.0
)0,3(021.0
)6,3(241.0
)3,5(702.0
)7,5(522.0
.deriuqersiycaruccadehsilbupehtdna)rab4,1(isp02±nahteromseiraverusserptelnilautcafirotalugerylppustolipaesU.1
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299H Series
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Principle of Operation
Letter keys in this section refer to figure 2 unless
otherwise noted. Fast response and accuracy are
made possible by the amplifying effect of the pilot and
by the two-path control system. The function of the
pilot is to sense change in the controlled pressure and
amplify it into a larger change in the loading pressure.
Any changes in outlet pressure act quickly on both the
actuator diaphragm and the loading pilot, thus
providing the precise pressure control that is
characteristic of a two-path piloting system.
Upstream or inlet pressure is utilized as the operating
medium, which is reduced through pilot operation to
load the main diaphragm chamber. Tubing connects the
inlet pressure to the pilot. Downstream or outlet
pressure registers underneath the main diaphragm (E)
and on top of pilot diaphragm (F). There are three
different versions of registration for the 299H Series.
Internal registration—Outlet pressure is registered
through the throat to the main diaphragm chamber and
then through a small port (G) to the top of the pilot
diaphragm.
External registration—The throat is blocked and a
downstream control line is connected to the pilot upper
diaphragm chamber or the actuator lower diaphragm
chamber. A small port (G) connects the two chambers.
Dual registration—The lower main diaphragm
chamber registers outlet pressure through the throat
and the upper pilot diaphragm chamber registers
downstream pressure by using a downstream control
line. The port (G) between the chambers is blocked.
In operation, assume the outlet pressure is less than
the setting of the pilot control spring (A). The top side
of pilot diaphragm assembly (F) will have a lower
pressure than the setting of the control spring (A). The
control spring (A) forces the diaphragm assembly
upward, opening the pilot orifice (C). Additional loading
pressure is supplied from the pilot orifice to the top
side of the main diaphragm (E).
This creates a higher pressure on the top side of the
main diaphragm (E) than on the bottom side, forcing
the diaphragm downward. This motion is transmitted
through a lever, which pulls the valve disk open,
allowing inlet pressure to flow through the valve.
When the demand in the downstream system has been
satisfied, the outlet pressure increases. The increased
pressure is transmitted through the downstream control
line and acts on top of the pilot diaphragm (F). This
Figure 2. 299H Series Operational Schematic
EXTERNAL REGISTRATION
DUAL REGISTRATION
J
J
G
G
F
GA
C
PILOT
SUPPLY
SCREEN
B
E
J
OUTLET
INLET
INTERNAL
REGISTRATION
A7268_1
A7269_1
A7270_1
3/4-INCH NPT
DOWNSTREAM
CONTROL LINE
CONNECTION
3/4-INCH NPT
DOWNSTREAM
CONTROL LINE
CONNECTION
3/4-INCH NPT
DOWNSTREAM
CONTROL LINE
CONNECTION
ATMOSPHERE PRESSURE
LOADING PRESSURE
OUTLET PRESSURE
INLET PRESSURE
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299H Series
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pressure exceeds the pilot spring setting and forces the
diaphragm down, closing the orifice (C). The loading
pressure acting on the main diaphragm (E) bleeds to the
downstream system through a bleed restriction (H).
With a decrease in loading pressure on top of the main
diaphragm (E), the main closing spring (B) exerts an
upward force on the diaphragm post which is
connected to the main diaphragm (E), pulling it upward.
This moves the main valve disk toward its seat,
decreasing flow to the downstream system.
Type 299HR
During normal operation the Type 299HR performance
is identical to the Type 299H. If an overpressure
condition occurs, the pilot diaphragm head will
separate from the pilot diaphragm post and travel until
it contacts the pilot spring case. The movement of the
diaphragm head creates a path and a token, or small
amount of gas will be released.
When the overpressure condition ceases the pilot
diaphragm head will return to the diaphragm post, and
the regulator will return to normal operation.
Installation
Personal injury, equipment damage, or
leakage due to escaping gas or bursting
of pressure-containing parts might result
if this regulator is overpressured or is
installed where service conditions could
exceed the limits for which the regulator
was designed, or where conditions
exceed any ratings of the adjacent piping
or piping connections. To avoid such
injury or damage, provide pressure-
relieving or pressure-limiting devices (as
required by the appropriate code, regula-
tion, or standard) to prevent service
conditions from exceeding those limits.
A regulator may vent some gas to the
atmosphere in hazardous or flammable
gas service. Vented gas might accumulate
and cause personal injury, death or
property damage due to fire or explosion.
Vent a regulator in hazardous gas service
to a remote, safe location away from air
intakes or any hazardous location.
Protect the vent line or stack opening
against condensation or clogging.
If the regulator is exposed to an over-
pressure condition, it should be in-
spected for any damage that may have
occurred. Operation below these limits
does not preclude the possibility of
damage from external sources or from
debris in the pipeline.
Like most regulators, the 299H Series regulators have
an outlet pressure rating lower than its inlet pressure
rating. Complete downstream overpressure protection
is needed if the actual inlet pressure can exceed the
regulator outlet pressure rating or the pressure ratings
of any downstream equipment. Regulator operation
within ratings does not preclude the possibility of
damage from external sources or from debris in the
lines. A regulator should be inspected for damage
periodically and after any overpressure condition.
Clean out all pipelines before installation and check to
be sure the regulator has not been damaged or
collected foreign material during shipping.
Apply pipe compound to the male pipe threads only with
a screwed body, or use suitable line gaskets and good
bolting practices with a flanged body. This regulator
may be installed in any position desired as long as the
flow through the body is in the direction indicated by the
arrow on the body. Install a three-valve bypass around
the regulator if continuous operation is necessary during
maintenance or inspection.
Although the standard orientation of the actuator and
pilot to the main valve body is as shown in figure 1,
this orientation may be changed in 90° intervals
rotating the actuator lower casing (key 1) 90°, rotate
the elbow fitting in the same direction, and reinstalling
the cap screws. To keep the pilot spring case from
being plugged or the spring case from collecting
moisture, corrosive chemicals, or other foreign
material, the vent must be pointed down, oriented to
the lowest possible point on the spring case, or
otherwise protected. Vent orientation may be
changed by rotating the pilot spring case with respect
to the pilot body.
To remotely vent the pilot, remove the screwed-in vent
assembly (key 27) from the pilot spring case and
install obstruction-free tubing or piping into the
1/4-inch NPT vent tapping. Provide protection on a
remote vent by installing a screened vent cap into the
remote end of the vent pipe.
An upstream pilot supply line is not required because
of the integral pilot supply tubing (key 21). However,
as long as the 1/4-inch NPT tapping in the main valve
body is plugged, this tubing may be disconnected from
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299H Series
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the main valve (key 17) in order to install a pilot supply
line from a desired remote location into the pilot.
If using a control line, attach the control line from the pilot
tap two to three feet (0,6 to 0,9 meters) downstream of
the regulator in a straight run of pipe. If imposs-ible to
comply with this recommendation due to the pipe
arrangement, it may be better to make the control line tap
nearer the regulator outlet rather than downstream of a
block valve. Do not make the tap near any elbow, swage,
or nipple which might cause turbulence. For optimal
performance, use as large of a control line as practical.
In many instances, it will be necessary to enlarge the
downstream piping to keep flow velocities within good
engineering practices. Expand the piping as close to
the regulator outlet as possible.
Adjustment of the pilot control spring to
produce an outlet pressure higher than
the upper limit of the outlet pressure
range for that particular spring can cause
personal injury or equipment damage
due to bursting of pressure-containing
parts or the dangerous accumulation of
gases if the maximum actuator emer-
gency casing pressure is exceeded. If the
desired outlet pressure is not within the
range of the pilot control spring, install a
spring of the proper range according to
the Maintenance section.
Each regulator is factory-set for the pressure setting
specified on the order. If no setting was specified, the
outlet pressure was set midrange of the pilot control
spring. In all cases, check the control spring setting to
make sure it is correct for the application.
Registration Conversion
To convert the Type 299H regulators from one type of
registration to another all that is required is adding or
removing screws and O-rings.
To change an internal registration regulator to an
external registration regulator with a downstream
control line, block the two ports in the throat with
screws and O-rings (J in figure 2). Remove either the
3/4 inch NPT pipe plug in the pilot casing or the
3/4-inch NPT pipe plug in the lower casing and add a
downstream control line.
To convert an external registration regulator to a dual
registration regulator, remove the two screws and
O-rings (J in figure 2) from the throat and use a screw
and an O-ring to block the port (G in figure 2) between
the lower diaphragm chamber and pilot diaphragm
chamber. Remove the 3/4-inch NPT pipe plug in the
pilot lower casing and add a downstream control line.
Startup
With proper installation completed and downstream
equipment properly adjusted, perform the following
procedure while monitoring the pressure with gauges.
1. Very slowly open the upstream block valve.
2. Slowly open the hand valve (if used) in the control
line. The regulator will control downstream pressure at
the pilot control spring setting. See the Adjustment
section following these numbered steps if changes in
the setting are necessary during the startup procedure.
3. Slowly open the downstream block valve.
4. Slowly close the bypass valve, if used.
5. Check all connections for leaks.
Adjustment
Keys are referenced in figure 4. The only adjustment on
the regulator is the reduced pressure setting affected
by the pilot control spring (key 32). Remove the
closing cap (key 29) and turn the adjusting screw (key
36). Turning the adjusting screw clockwise into the
spring case increases the controlled or reduced
pressure setting. Turning the screw counterclockwise
decreases the reduced pressure setting. Always
tighten the locknut (key 35) and replace the closing
cap after making adjustments.
Shutdown
Installation arrangements may vary, but in any
installation it is important to open and close valves
slowly and the outlet pressure be vented before
venting inlet pressure to prevent damage caused by
reverse pressurization of the regulator. Isolate the
regulator from the system. Vent the downstream
pressure; then vent inlet pressure to release any
remaining pressure in the regulator.
Maintenance
Regulator parts are subject to normal wear and must
be inspected periodically and replaced as necessary.
The frequency of inspection and replacement depends
upon the severity of service conditions and upon
applicable codes and government regulations.
Due to the care Fisher takes in meeting all
manufacturing requirements (heat treating, dimensional
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299H Series
6
tolerances, etc.), use only replacement parts
manufactured or furnished by Fisher.
Avoid personal injury or damage to
property from sudden release of pres-
sure or uncontrolled gas or other pro-
cess fluid. Before starting to disas-
semble, carefully release all pressures
according to the Shutdown procedure.
Use gauges to monitor inlet, loading,
and outlet pressures while releasing
these pressures.
On reassembly of the regulator, it is recommended that
a good quality pipe thread sealant be applied to
pressure connections and fittings and a good quality
lubricant be applied to all O-rings. Also apply an anti-
seize compound to the adjusting screw threads and
other areas as needed.
Note
The regulator body may remain in the
pipeline during maintenance procedures.
Main Actuator Diaphragm
Follow this procedure to change the actuator
diaphragm, or to inspect, clean, or replace any other
parts in the main actuator. Part key numbers are
referenced in figure 5.
1. Cut the wire seal (being careful not to lose the
warning tag) and remove the closing cap (key 3).
Inspect the O-ring (key 9) and replace if necessary.
2. Carefully loosen and remove the double nuts
(key 5) on the actuator diaphragm post (key 10). When
removing the adjusting nuts, do not twist or unscrew
the diaphragm post, as this action will loosen the joint
between the diaphragm post and the pusher post
(keys 10 and 11).
3. Remove the spring seat (key 4) and closing spring
(key 6).
4. Remove the eight hex head cap screws (key 23)
and lift off the upper casing (key 2).
5. Remove the diaphragm assembly (key 8) by
tipping it so that the lever (key 26) slips out of the
pusher post (key 11).
6. Separate the diaphragm assembly by unscrewing
the diaphragm post (key 10) from the pusher post
(key 11) and remove the diaphragm post, pressure
equalization spring (key 7), diaphragm head (key 81),
diaphragm (key 8), the second diaphragm head
(key 81), and diaphragm pad (key 80). Inspect the
diaphragm parts for damage and replace if necessary.
7. Inspect the lever (key 26) and replace if necessary.
To replace the valve stem (key 16), also perform Main
Body Valve Disk and Orifice maintenance procedure
steps 1, 2, and 3, remove disk, and pull the stem out of
the lower casing assembly (key 1). Lightly lubricate the
replacement stem O-ring (key 14) and install it on the
valve stem. Reinstall the valve stem into the lower
casing assembly. Reinstall the body or continue with
the reassembly of the diaphragm.
Note
When assembling the diaphragm assem-
bly (keys 8, 80, and 81), lubricate the
actuator diaphragm post (key 10) threads.
8. Loosely reassemble the diaphragm and diaphragm
post parts so that the bolt holes in the diaphragm align
with the corresponding holes in the lower casing (key 1)
when the lever (key 26) is fitted properly into the pusher
post. When this orientation is made, tighten the
diaphragm post into the pusher post (keys 10 and 11).
9. Reinstall the diaphragm assembly using the
reverse order of step 5.
10. Install the upper casing (key 2) and secure it to
the lower casing (key 1) with the eight hex head screws.
Tighten the hex head screws evenly using a crisscross
pattern to avoid placing a uneven strain on the regulator.
Tighten the screws to a final bolt torque of 10 to 13 foot-
pounds (13 to 17 N•m) to avoid crushing the diaphragm.
In step 11, the spring seat (key 4) is
under spring pressure. Use constant
hand pressure to hold the spring down
when installing the hex nuts (key 5).
11. Install the closing spring (key 6) and the spring
seat (key 4). Push and hold down on the spring seat,
cocking it to one side until the seat catches onto the
threads of the diaphragm post. Then, pull up on the
diaphragm post allowing access to the post threads so
that the adjusting two hex nuts (key 5 ) can be install-
ed. Install the adjusting hex nuts as shown in figure 5.
The closing spring must be adjusted down to a depth of
1/2 inch (12,7 mm) from the top of the upper case
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299H Series
7
opening to the top of the spring seat (see figure 3).
When tightening the two hex nuts, use care not to rotate
the diaphragm post, which may damage the post.
12. Lightly lubricate the O-ring (key 9) on the closing
cap and reinstall the closing cap (key 3).
The seal and warning tag (keys 68 and 69)
contain important safety information,
make sure they are attached when mainte-
nance is completed.
13. Install the seal and warning tag (keys 68 and 69).
Main Body Valve Disk and Orifice
Follow this procedure to inspect, clean, or replace the
main body valve disk or to inspect or replace the
orifice. Part key numbers are referenced in figure 5.
Note
The regulator body may remain in the
pipeline during maintenance procedures.
1. Disconnect the pilot supply tubing (key 21) from
the main body (key 17).
2. Remove the two hex head cap screws (key 18)
which hold the lower casing (key 1) to the body.
Separate the lower casing from the body. Inspect the
body O-ring and replace if worn or damaged.
3. Examine the valve disk (key 13) and orifice
(key 12) for nicks, cuts, and other damage. Unscrew
the disk holder assembly from the valve stem assembly
(key 16) and replace it with a new part if necessary.
If the orifice is being replaced with a new or different
size orifice, change the nameplate (key 63) to state the
new size and maximum inlet pressure. Lubricate the
threads and flat face of the orifice with a good grade of
anti-sease lubricant. Install the orifice using 75 to 100
foot-pounds (102 to 136 N•m) of torque.
4. After replacing all damaged parts, slide the entire
assembly into the valve body and secure with the two
hex head cap screws.
5. Connect the pilot supply tubing, then refer to the
Startup section for putting the regulator into operation.
Integral Pilot Valve Disk and Orifice
Follow this procedure to inspect, clean, or replace the
integral pilot valve disk or orifice. Part key numbers
are referenced in figures 4 and 6.
1. Remove or loosen the pilot supply tubing (key 21).
2. Remove the inlet fitting (key 47), remove the four
machine screws (key 46).
3. Examine the valve disk (key 52) for nicks, cuts,
and other damage. Unscrew the disk holder assembly
from the valve stem and replace if necessary.
4. If the seating edge of the orifice (key 50) is nicked
or rough, use a thin-walled socket to remove the orifice
from the inlet fitting (key 47). Install a new orifice and a
lightly lubricated O-ring when reassembling the regulator.
5. Inspect the check valve assembly (key 45) and
the bleed restriction (key 70) for damage and replace if
necessary.
6. The Type 299H has a wire inlet screen (key 51) in
the pilot supply inlet fitting (key 47). If clogging is
suspected in the pilot supply, remove the elbow fitting
and clean the wire screen.
7. Lightly lubricate the O-ring (key 54) on the inlet
fitting (key 47) and reinstall using the four machine
screws (key 46). Torque the machine screws to 30 to
40 inch-pounds (3,4 to 4,5 N•m). Then install and
tighten the pilot supply tubing.
Integral Pilot Control Spring and Diaphragm
Follow this procedure to change the pilot control spring
or to inspect, clean, or replace the diaphragm. Part key
numbers are referenced in figure 4 and 6.
1. Remove the pilot closing cap (key 29) and loosen
the hex lock nut (key 35). Turn the adjusting screw
(key 36) counterclockwise to ease spring compression.
2. Unscrew the bonnet (key 34).
3. Remove the bonnet (key 34), spring seat (key 33),
and control spring (key 32).
4. If only replacing the control spring, sparingly apply
lubricant to the control spring seat (key 33) and
reassemble in the reverse order.
Note
When replacing the control spring with a
different spring range, be sure to delete
the spring range appearing on the
nameplate and indicate the new range.
5. Remove the machine screws (key 30) and spring
case (key 31) from the lower casing (key 1).
6. Remove the diaphragm assembly (key 28) by tilting
them so that the pusher post (key 40) slips off the lever
(key 57). To separate the diaphragm from the attached
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299H Series
8
parts, unscrew the hex nut (key 37) and separate the
parts: washer (key 38), diaphragm post (key 39),
pusher post (key 40), overtravel spring (key 41), mach-
ine screw (key 42), spring seat (key 88) (Type 299HR
only), rivet (key 43), and retaining ring (key 44).
7. To replace the lever assembly (key 57) remove the
lever pin (key 25). To replace the valve stem (key 48),
also perform Integral Pilot Valve Disk and Orifice
maintenance procedure steps 1, 2, and 3 and pull the
stem (key 48) out of the lower casing assembly (key 1).
Lightly lubricate the replacement stem O-ring (key 53)
and install it on the valve stem.
8. Install the valve stem into the lower casing
assembly. Be careful not to cut the O-ring (key 53)
when sliding the valve stem into the lower casing.
9. Reinstall the diaphragm assembly using the
reverse order of step 6.
10. Place the spring case (key 31) on the lower casing
(key 1) with the vent (key 27) oriented to prevent
clogging or entrance or moisture. Install the machine
screws (key 30) and tighten in a crisscross pattern
using 12 to 18 inch-pounds (1,4 to 2,0 N•m) of torque.
11. When all maintenance is complete, refer to the
Startup section to put the regulator back into operation,
and adjust the pressure setting. Tighten the locknut
(key 35) and install the closing cap (key 29).
Optional P590 Series Filter
Figures are referenced in figure 3. If clogging is sus-
pected in the upstream regulator passages, disconnect
the pilot supply tubing (key 21), remove the filter
assembly, and check for filter clogging. If necessary,
to clean or replace filter parts, remove the following:
filter body (key 1), machine screw (key 4), spring
washer (key 6), gasket (key 7), washer (key 5), and
filter element (key 2). Upon reassembly, place one flat
washer between the filter element and filter head (key 3)
and the other between the filter element and gasket.
Optional 67 Series Pilot Supply Regulator
For complete installation, maintenance and parts
listing refer to the 67 Series instruction manual.
Parts Ordering
The type number, orifice size, spring range, and date
of manufacture are stamped on the nameplate.
Provide this information along with the eleven-
character part number to your Fisher Representative
Parts List
299H Series Regulator (figure 3)
Key Description Part Number
1 Lower Casing, aluminum T80447T0012
2 Upper Casing, aluminum T40577T0012
3 Closing Cap, aluminum 1L928308012
4 Spring Seat, steel T13831T0012
5 Adjustment Nut, steel (2 required) 1A341224122
6 Closing Spring, steel T13918T0012
7 Pressure Equalization Spring, steel T13463T0012
8* Diaphragm, nitrile T20986T0012
9* O-ring, nitrile 1F914106992
10 Diaphragm Post, steel T13814T0012
11 Pusher Post, aluminum 1L143311992
12 Orifice, aluminum
1/4 x 3/8-inch (6,4 x 9,5 mm) T13833T0012
3/8-inch (9,5 mm) 1H979309022
1/2-inch (12,7 mm) 1H979409022
3/4-inch (19,1 mm) 1H979509022
7/8-inch (22,2 mm) T14098T0012
1-inch (25,4 mm) 1H979609022
1-3/16 (30,2 mm) 1H979709022
13* Disk, nitrile 1P7349000A2
14* O-ring, nitrile 1E216306992
15* O-ring, nitrile T12587T0012
16 Valve Stem Assembly 1L1426000A2
17 Valve Body
Cast Iron
1-1/4-inch (DN 32), NPT screwed T40578T0012
1-1/2-inch (DN 40), NPT screwed 1J190419012
2-inch (DN 50)
NPT screwed 1H968919012
125 FF flanged
7.5-inch (191 mm) face-to-face dimension T80445T0012
10-inch (254 mm) face-to-face dimension 2L425119012
250 RF flanged T40488T0012
Ductile Iron
1-1/2-inch (DN 40), NPT screwed T40561T0012
2-inch (DN 50)
NPT screwed T40562T0012
125 FF flanged T80424T0012
250 RF flanged T80425T0012
PN 10-16 flanged T80426T0012
Steel
1-1/2-inch (DN 40), NPT screwed 1J1904T0022
2-inch (DN 50)
NPT screwed 1H9689T0022
150 RF flanged T80415T0012
300 RF flanged T80416T0012
PN 16 flanged T80417T0012
18 Cap Screw, steel (2 required) T14034T0012
19 Elbow, cast iron or steel bodies require 3 elbows and
ductile iron bodies require 2 elbows
Steel 15A6002X472
Stainless steel 15A6002X612
20 Connector
Cast Iron or Steel Bodies
Without filter and pilot supply regulator require 1 connector
All other combinations of filter and/or pilot supply regulator
require 3 connectors.
* Recommended spare part
when ordering parts. If construction changes are made
in the field, be sure that the nameplate is also changed
to reflect the most recent construction.
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299H Series
9
Key Description Part Number
20 Connector (continued)
Ductile Iron Bodies
Without filter and pilot supply regulator require 2 connectors
All other combinations of filter and/or pilot supply
regulator require 4 connectors.
Steel 15A6002X462
Stainless steel 15A6002X602
21 Pilot Supply Tubing,
Stainless steel, without filter T14247T0022
Stainless steel, without filter(1) T14017T0022
22 Loading Tubing, Stainless steel T14246T0022
23 Cap Screw, steel (8 required) 1C379124052
24 Machine Screw, steel (2 required) 1B420428982
25 Pin, lever, stainless steel (2 required) 1H972935032
26 Lever, steel T13813T0012
27 Type Y602-12 Vent Assembly 27A5516X012
28 Diaphragm Assembly T14259T0012
29 Closing Cap, UV resistant nylon 24B1301X012
30 Machine Screw, steel (8 required) T14069T0012
31 Spring Case, aluminum T14097T0012
32 Control Spring
3.5 to 6-inches w.c. (9 to 15 mbar) T13707T0012
5 to 9-inches w.c. (12 to 22 mbar) T13589T0012
7 to 20-inches w.c. (17 to 49 mbar) 1N3112X0012
16 to 40-inches w.c. (40 to 99 mbar) 1B413727222
1 to 3.25 psig (0,069 to 0,22 bar) T13593T0012
2.75 to 6 psig (0,19 to 0,41 bar) T13671T0012
5 to 16 psig (0,41 to 1,10 bar) (299H only) T13600T0012
14 to 35 psig (0,97 to 2,4 bar) (299H only) T13771T0012
30 to 60 psig (2,07 to 4,14 bar) (299H only) T14096T0012
33 Spring Seat, steel T13917T0012
34 Bonnet, steel T14135T0012
35 Locknut, steel 1A352224122
36 Adjusting Screw, steel T14133T0012
37 Hex Nut, steel 1E985324142
38 Washer, steel 1F230328992
39 Diaphragm Post, stainless steel
Type 299H T13915T0012
Type 299HR T14033T0012
40 Pusher Post, steel T13914T0012
41 Overtravel Spring, stainless steel
Type 299H T14136T0012
Type 299HR T14031T0012
42 Machine Screw, steel 1A954828992
43 Rivet, flat head, stainless steel T13916T0012
44 Retaining Ring, steel 16A6977X012
45 Check Valve Assembly T14258T0012
46 Machine Screw, steel (4 required) T13920T0012
47 Inlet Fitting, aluminum T13824T0012
48 Stem Assembly 1H9666T0012
49* O-ring, nitrile T13939T0012
50 Pilot Orifice, aluminum T13825T0012
51 Inlet Screen, stainless steel T13791T0012
52* Pilot Disk Assembly T13955T0012
53* O-ring, nitrile 1D682506992
54* O-ring, nitrile 13A2331X022
56 Screw, steel (External Registration - 2 required
or Dual Registration - 1 required) 1E175828982
57 Lever, steel T14134T0012
58 Pipe Plug, steel 1A7715T0012
59 Pipe Plug, Internal Registration only, steel 1A7715T0012
61 O-ring, Nitrile (External Registration - 2 required
or Dual Registration - 1 required) 17A0960X012
62 Drive Screw, steel (2 required) 1E501728982
63 Nameplate, aluminum - - - - - - - - - - -
68* Wire Seal T14088T0012
69 Warning Tag, aluminum T13815T0012
* Recommended spare part
1. Ductile iron bodies only.
Key Description Part Number
70 Bleed Restriction, steel
0.044-inch (1,1 mm) red (standard) 17A2029X012
0.071-inch (1,8 mm) green 17A2030X012
0.082-inch (2,1 mm) blue 17A7277X012
72 Optional P590 Series Filter See P590 Series
76 Optional Pilot Supply Regulator See 67 Series
78 Pilot Supply Tubing, long
Stainless steel, w/ filter T13969T0022
Stainless steel, w/ filter(1) T14022T0022
79 Pilot Supply Tubing, short
Stainless steel, w/ filter T13968T0022
80 Pad, nitrile T13830T0012
81 Diaphragm Head, steel (2 required) T13812T0012
82 Insert, aluminum(1) T14013T0012
83 O-ring, nitrile(1) T1072606562
84 Plate (for ductile iron body), steel(1) T14039T0012
85 O-ring (for ductile iron body), nitrile(1) T13769T0012
86 O-ring (for ductile iron body), nitrile(1) T13772T0012
87 Set Screw (for ductile iron body) (4 required)(1) 1C629828992
88 Spring Seat, Type 299HR only T14030T0012
89 Label, (not shown)
Type 299H T1215806032
Type 299HR T1215906032
Optional P590 Series Filter (Key 72)
Key Description Part Number
1 Filter Body
Type P594-1, brass 1E312414012
Type P593-1, aluminum 1E312409012
2* Filter Element, cellulose 1E312606992
3 Filter Head
Type P594-1, brass 1E312514012
Type P593-1, aluminum 1E312509012
4 Machine Screw
Type P594-1, brass 1J500218992
Type P593-1, aluminum 1J500209012
5 Washer (2 required)
Type P594-1, brass 1J500018992
Type P593-1, aluminum 1J500010062
6 Spring Washer, plated carbon steel 1H885128982
7* Gasket, composition 1F826804022
Figure 3. Optional P590 Series Filter
KEY 72 - OPTIONAL P590 SERIES FILTER
A7008
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299H Series
10
EXTERNAL REGISTRATION
INTERNAL REGISTRATION
Figure 5. 299H Series Interior Assembly
TYPE 299H PILOT (WITHOUT RELIEF VALVE)
TYPE 299HR PILOT WITH TOKEN RELIEF VALVE
Figure 4. 299H Series Pilot Assemblies
A7275
A7276
A7278
A7279
LOCKING DOWN THE SPRING SEAT TO
FACILITATE INSTALLING THE HEX NUTS
HEX NUTS
APPLY CONSTANT
HAND PRESSURE
SPRING SEAT
UPPER
SPRING CASE
CLOSING SPRING
DIAPHRAGM POST
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299H Series
11
61
299H SERIES PILOT TRIMDUAL REGISTRATION
Figure 5. 299H Series Interior Assembly (continued)
A7280
A7277
A7281
3/4-INCH NPT
DOWNSTREAM
CONTROL LINE
CONNECTION
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299H Series
12
299H SERIES EXTERIOR VIEW
TUBING AND FITTINGS WITH
OPTIONAL TYPE P590 FILTER
TUBING AND FITTINGS WITH
OPTIONAL 67 SERIES PILOT SUPPLY REGULATOR
Figure 6. 299H Series Exterior Assembly
A7282
A7283 A7284
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299H Series
13
Errata Sheet
for
299H Series Pressure Reducing Regulators
Form 5497, June 1999
The 299H Series is now available with an integral slam-shut device. Add the following information to the 299H Series
Instruction Manual, form 5497.
• Add the following paragraph to the Description section on page 1.
The Type 299HS provides over or over and underpressure protection by completely shutting off the flow of gas to the
downstream system. The shut-off device's actions are independent of the main valve and of variations to the inlet
pressure. The slam-shut device has internal or external registration. External registration requires a downstream
sensing line.
• Add the following paragraphs to the Principle of Operation section on page 4.
Type 299HS
The Type VSX-2 slam-shut device on the Type 299H regulator is a fast acting shut-off valve which provides over or
over and underpressure protection by completely shutting off the flow of gas to the downstream system. The shut-
off module’s actions are independent of the Type 299H regulator and of variations to the inlet pressure. The VSX-2
has internal or external registration. External registration requires a downstream sensing line.
The shut-off disk is held in the open position (reset position) by a small ball holding the disk stem. If the pressure
below the diaphragm increases (or decreases) reaching the Type VSX-2 setpoint, the diaphragm will travel upwards
(or downwards) operating a lever which in turn releases the ball.
Once the ball is released, the spring force on the stem will push the stem and disk to the closed position against
the seat shutting off all gas flow. The pilot supply pressure is also shut off when the Type VSX-2 is closed. The
manual reset has an internal bypass to equalize the reset pressure on either side on the shut-off disk.
• Add the following paragraph to the Installation warning on page 4.
If the Type VSX-2 is exposed to an overpressure condition, it should be inspected for any dam-
age that may have occurred. Operation below these limits does not preclude the possibility of
damage from external sources or from debris in the pipeline.
January 2000
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299H Series
14
Specifications
Available Configurations
Type 299HS: Same as the Type 299H with a Type
VSX-2 shutoff valve which provides over or over
and underpressure protection.
Type 299HSR: Same as the Type 299HS with an
internal token relief valve.
Body Size And End Connection Styles
Note: The Type 299HS is only available in
Ductile iron
Maximum Inlet Pressure(1) by Orifice Size
Note: The Type 299HS is not available with
7/8-inch (22,2 mm), 1-inch (25,4 mm), or
1-3/16-inch (30,2 mm) orifice
Maximum Outlet Pressure(1)
66 psig (4,6 bar)
Maximum Set Pressure for Type 299HS(1)
16 psig (1,1 bar)
Type 299HS Outlet (Control) Pressure Ranges(1)
See table 1
Maximum Set Pressure for Slam-Shut Device(1)
23 psig (1,6 bar)
Minimum and Maximum Trip Pressure Ranges
See table 2
Type VSX-2 Sensing Line Connection
1/4-inch NPT screwed
1. The pressure/temperature limits in this bulletin and any applicable standard or code limitation should not be exceeded.
• Add the following information to the Specifications section on page 2.
Table 1. Type 299HS Outlet Pressure Ranges
GNIRPS
REBMUN
)LORTNOC(TELTUO
EGNARERUSSERP
GNIRPSLORTNOCTOLIP
rebmuNtraPedoCroloC ,htgneLeerF
)mm(sehcnI
,retemaiDeriW
)mm(sehcnI
1
2
3
4
.c.wsehcni-6ot5.3
.c.wsehcni-9ot5
.c.wsehcni-02ot7
.c.wsehcni-04ot61
)rabm51ot9(
)1(
)rabm22ot21(
)1(
)rabm94ot71(
)1(
)rabm99ot04(
)1(
2100T70731T
2100T98531T
2100X2113N1
222727314B1
kcalB
wolleY
revliS
elpruP
)2,74(68.1
)0,25(50.2
)4,55(81.2
)8,35(21.2
)4,1(550.0
)3,1(150.0
)9,1(570.0
)3,2(290.0
5
6
7
gisp52.3ot1
gisp6ot57.2
gisp61ot5
)rab22,0ot960,0(
)rab14,0ot91,0(
)rab01,1ot43,0(
2100T39531T
2100T17631T
2100T00631T
eulbthgiL
egnarO
deR
)8,35(21.2
)1,16(04.2
)3,35(01.2
)7,2(501.0
)0,3(021.0
)6,3(241.0
.deriuqersiycaruccadehsilbupdna)rab4,1(isp02±nahteromseiraverusserptelnilautcafirotalugerylppustolipaesU.1
• Add the following table to the instruction manual.
• Add the following paragraphs to the Registration Conversion section on page 5.
Type VSX-2 Slam-Shut Device
To convert the Type VSX-2 from one type of registration to another all that is required is adding or removing a
screw and gasket.
To change an internal registration Type VSX-2 to an external or dual registration Type VSX-2 with downstream
control line, block the body pitot tube with a screw and gasket (keys 10 and 11, figure 7). Remove the pipe plug in
the Type VSX-2 and add a downstream control line.
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299H Series
15
• Add the following to figure 2 on page 3.
EXTERNAL REGISTRATION
INTERNAL REGISTRATION
Figure 2. 299HS Operational Schematic
INLET PRESSURE
LOADING PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
E0094
E0095
E0096
• Add the following step between steps 1 and 2 of the Startup procedure on page 5.
On a Type 299HS the Type VSX-2 is shipped in the tripped position and will need to be reset. If the Type VSX-2 is
a high trip only, it can be reset before starting the regulator. If the Type VSX-2 is a high and low trip, the regulator
will need to be started and the downstream system pressurized before the Type VSX-2 can be reset. See the
section for Type VSX-2 reset.
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299H Series
16
• Add the following section after the Registration Conversion section on page 5.
Type VSX-2 Installation
Note
The Type VSX-2 slam-shut module should be mounted so that the spring case vent points
towards the ground.
Place new O-rings (keys 2 and 3, figure 7) on the Type VSX-2 and slide the module into the Type 299HS body
(key 17, figure 7). Secure the Type VSX-2 to the Type 299HS body with the four set screws (key 4, figure 7). The
Type VSX-2 device may be oriented in any direction with respect to the sensor line connection.
• Add the following sections after the Adjustment section on page 5.
Type VSX-2 Reset
Note
The over and under trip pressures can only be reset if the Type 299HS outlet pressure is between
the over and under tip pressure.
Use the following procedure to reset the Type VSX-2:
1. Unscrew the brass knob to open the equalizing bypass.
2. Pull out on the knob until it stops. This resets the tripping mechanism.
3. Push in and tighten the knob.
TNIOPTES
SEGNAR
TUHS-MALS
EPYT
HTIWESUROF
EVLAVNIAM
REBMUNGNIRPS
)1(
MUMIXAMOTMUMINIM
ERUSSERPPIRT
2-XSVEPYT
TRAPGNIRPS
REBMUN
EERFGNIRPS
,HTGNEL
)mm(SEHCNI
ERIWGNIRPS
,RETEMAID
)mm(SEHCNI
hgiH
erusserP
pirT
PL
2,1.c.wsehcni-52ot21)rabm36ot03(2100T26141T)08(51.3)7,1(760.0
3,2,1.c.wsehcni-25ot02)rabm031ot05(2100T36141T)08(51.3)0,2(080.0
4,3gisp9.3ot4.1)rabm072ot59(2100T46141T)08(51.3)3,2(190.0
6,5,4gisp7.8ot8.3)rabm006ot062(2100T56141T)08(51.3)0,3(021.0
7,6gisp61ot8.5)rabm0011ot004(2100T66141T)08(51.3)5,3(831.0
7gisp32ot6.11)rabm0061ot008(2100T76141T)08(51.3)3,4(071.0
woL
erusserP
pirT
PL
3,2.c.wsehcni-21ot2)rabm03ot6(2100T86141T)08(51.3)1,1(340.0
4,3.c.wsehcni-03ot4)rabm57ot01(2100T96141T)08(51.3)4,1(550.0
6,5gisp3.2ot63.0)rabm061ot52(2100T07141T)08(51.3)7,1(760.0
7,6gisp8.01ot5.1)rabm057ot001(2100T17141T)08(51.3)2,3(521.0
.rebmungnirpsevlavniamrof1elbateeS.1
.noitamrofnilanoitiddarofevitatneserpeRselaSrehsiFruoytcatnocesaelp,elbaliavaerasnoitanibmocgnirpsrehtO:etoN
Table 2. Type VSX-2 High and Low Trip Pressure Ranges
• Add the following table to the instruction manual.
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299H Series
17
• Add the following sections after the Adjustment section on page 5.
Type VSX-2 Trip Adjustment
Note
An adjustment tool is included with the Type VSX-2 (see figure 8). Use only this tool to make adjust-
ments to the Type VSX-2. To make adjustments, the overpressure trip spring is found under the outer
adjusting screw and the underpressure trip spring is found under the inner adjusting screw.
Use the following procedure to adjust the Overpressure Trip Spring:
1. Use the VSX adjusting tool to adjust the overpressure trip spring to its maximum compression.
2. If present adjust the underpressure spring (using the VSX adjusting tool) to its minimum compression.
3. Backpressure the unit with the desired trip pressure.
4. Reduce the overpressure trip spring compression until the Type VSX-2 trips.
Use the following procedure to adjust the Underpressure Trip Spring:
1. Use the VSX adjusting tool to adjust the underpressure trip spring to its minimum compression.
2. Backpressure the unit with the desired trip pressure.
3. Increase the underpressure trip spring compression until the Type VSX-2 trips.
• Add the following section after the Integral Pilot Control Spring and Diaphragm section beginning on page 8.
Type VSX-2 Maintenance
The Type VSX-2 device (key 1, figure 7) is designed to be removed as a unit from the Type 299HS body (key 17,
figure 7) and be replaced as a complete unit. The high and low pressure springs may be adjusted or replaced
without removing the slam-shut from the Type 299HS body.
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299H Series
18
• Add the figure below.
Figure 7. Type VSX-2 Assembly
E0098
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299H Series
19
• Add the following to the Parts List on page 9.
Type VSX-2 Slam-Shut Device (figure 7)
Key Description Part Number
1 VSX-2 Module FA196247X12
2 Upper O-ring T13769T0012
3 Lower O-ring T13772T0012
4 Set Screw (4 required) 1C629828992
6 Vent Assembly 27A5516X012
7 High pressure Control Spring, zinc plated steel
12 to 25-inches w.c. (30 to 63 mbar), black T14162T0012
20 to 52-inches w.c. (50 to 130 mbar), brown T14163T0012
1.4 to 3.9 psi (95 to 270 mbar), red T14164T0012
3.8 to 8.7 psig (260 to 600 mbar), orange T14164T0012
5.8 to 16 psig (400 to 1100 mbar), yellow T14166T0012
11.6 to 23 psig (800 to 1600 mbar), green T14167T0012
8 Low pressure Control Spring, zinc plated steel
2 to 12-inches w.c. (6 to 30 mbar), white T14168T0012
4 to 30-inches w.c. (10 to 75 mbar), blue T14169T0012
0.36 to 2.3 psig (25 to 160 mbar), silver T14170T0012
1.5 to 10.8 psig (100 to 750 mbar), olive T14171T0012
10 Machine Screw (for external control line), steel 1H8162X0012
11 Gasket (for external control line) T14075T0012
12 Adjustment Tool FA142932X12
13 Pipe Plug (for internal registration) 1A767524662
• Add the figure below.
Figure 8. VSX Adjusting Tool
VSX TOOL BEING USED TO ADJUST A TYPE VSX-2
VSX ADJUSTING TOOL
USE THIS END FOR
OVERPRESSURE
TRIP ADJUSTMENT
USE THIS END FOR
UNDERPRESSURE
TRIP ADJUSTMENT
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299H Series
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