Emerson Fisher 63EGLP Series User manual

Instruction Manual
D450319T012
September 2016
Type 63EGLP
Type 63EGLP Relief Valve
!
WARNING
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or fire causing property damage and
personal injury or death.
Fisher™ relief valves must be
installed, operated and maintained
in accordance with federal, state and
local codes, rules and regulations
and Emerson Process Management
Regulator Technologies, Inc.
(Emerson) instructions.
If a leak develops or if the outlet
continually vents process fluid, service
to the unit may be required. Failure
to correct trouble could result in a
hazardous condition. Call a gas service
person to service the unit. Only a
qualified person shall install or service
the unit.
Introduction
Scope of the Manual
This instruction manual provides instructions for
the installation, maintenance and parts ordering
information for a Type 63EGLP relief valve with a
Type 6358EBLP or 6358EBHLP pilot.
Figure 1. Type 63EGLP Bulk Plant Relief Valve
P1673_1
Figure 2. Type 6358EBLP Pilot
6358EBLP_1

2
Type 63EGLP
Product Description
Main Valve
The Type 63EGLP pilot operated pressure relief valve
is used for vapor service only. The main valve uses a
quick-change trim package for fast maintenance.
Pilot
The pilot regulator is responsible for the relief valve
assembly’s setpoint start-to-discharge pressure. The
Type 63EGLP relief valve uses a unique dual-pilot
assembly that allows maintenance to one pilot while
the alternate pilot continues to supply pressure to
the main valve assembly, providing overpressure
protection at all times when used correctly. The
Type 63EGLP relief valve utilizes one of two pilots:
Type 6358EBLP or 6358EBHLP. Any Type 63EGLP
shipped with certifications will use a specific version
of the Type 6358EBLP pilot with required setpoint
secured in place.
Specifications
Specifications for the Type 63EGLP construction is listed on Specifications section and Tables 1 to 3. The
specifications for a given construction as it originally comes from the factory are stamped on nameplates located
on the main valve body. The pilot set pressure appears on the pilot spring case.
Available Constructions
Type 63EGLP with two Type 6358EBLP Pilots
Type 63EGLP with two Type 6358EBHLP Pilots
Main Valve Body Size(1)
4 NPS / DN 100
End Connection Style
CL300 RF
Maximum Relief Inlet Pressure(2)(3)
Type 63EGLP: 400 psig / 27.6 bar
Relief Set Pressure Ranges(2)
Type 63EGLP-250(4): 250 psig / 17.2 bar
Type 63EGLP-EB1: 85 to 140 psi / 5.9 to 9.7 bar
Type 63EGLP-EB2: 130 to 200 psi / 9.0 to 13.8 bar
Type 63EGLP-EB3: 180 to 350 psi / 12.4 to 24.1 bar
Type 63EGLP-EBH: 250 to 375 psi / 17.2 to 26.0 bar
Main Valve Port Diameter:
4.38 in. / 111 mm
Valve Plug Travel:
2.00 in. / 51 mm
Main Valve Flow Characteristic
Linear
Main Valve Flow Direction
Up through seat ring and out through cage
Main Valve Material
WCB Steel
Maximum Temperature Capabilities(2)(5)
Nitrile (NBR): -20 to 180°F / -29 to 82°C
Approximate Weights (including pilots)
178 lbs / 81 kg
1. 4x3 in. ange reducer assembly available for 3 in. ange connections. See Parts List.
2. The pressure and/or temperature limits listed in this Instruction Manual and any applicable standard limitation should not be exceeded.
3. Includes buildup.
4. Set pressure is dened as the pressure at which the pilot (on UL® product) or the main valve (on PED product) starts-to-discharge.
5. Product has passed Fisher™ performance testing for Start-to-Discharge and reseal at -40ºC / -40ºF.
UL®is a mark owned by Underwriters Laboratories.

3
Type 63EGLP
UL®is a mark owned by Underwriters Laboratories.
TYPE PILOT TYPE RELIEF SET PRESSURE RANGE(1) SPRING PART
NUMBER
SPRING
COLOR
SPRING WIRE
DIAMETER
SPRING FREE
LENGTH
psig bar In. mm In. mm
63EGLP
6358EBLP
85 to 140
130 to 200
180 to 350
5.9 to 9.6
9.0 to 13.8
12.4 to 24.1
17B1261X012
17B1263X012
17B1264X012
Green
Blue
Red
0.225
0.262
0.294
5.72
6.66
7.47
3.70
3.85
4.22
94.0
97.8
107
6358EBHLP 250 to 375 17.2 to 25.9 17B1263X012 Blue 0.262 6.66 3.85 97.8
1. Set pressure plus buildup should not exceed maximum differential pressure of 400 psig / 27.6 bar.
Table 2. Relief Set Pressure Ranges
Table 3. Minimum and Maximum Dierential Pressure
BODY SIZE MAIN VALVE
SPRING RANGE
MAIN VALVE
SPRING
PART
NUMBER
MAIN VALVE
SPRING
COLOR
TYPE 63EGLP
Minimum Di󰀨erential
Pressure Required
For Full Stroke
Maximum
Di󰀨erential
Pressure
NPS DN psig bar psig bar psig bar
4 100 85 to 375 5.9 to 25.9 14A6634X012 Red 55 3.8 400 27.6
Table 1. 63EGLP Series Bulk Plant Relief Valves Flow Rate
TYPE NUMBER CONTAINER CONNECTION SET PRESSURE REPLACEMENT PILOT TYPE
NUMBER
FLOW RATE,
SCFM / SCMM OF AIR
psig(3) bar(3) Per UL®-132(1) PED Category IV(2)
63EGLP-250
CL300 RF(4),
4 in.
250 17.2 6358EBLP-250 38,794 / 1099 N/A
63EGLP-EB1 85 to 140 5.9 to 9.7 6358EBLP-1
N/A 11,929 to 47,164 /
338 to 1336
63EGLP-EB2 130 to 200 9.0 to 13.8 6358EBLP-2
63EGLP-EB3 180 to 350 12.4 to 24.1 6358EBLP-3
63EGLP-EBH 250 to 375 17.2 to 26.0 6358EBHLP
1. Capacity recorded at 20% over set pressure.
2. Flow Rate (SCFM Air) = 121.5 * Set Pressure (psig) + 1602.
3. Set pressure is dened as the pressure at which the pilot (UL®) or the main valve (PED) start-to-discharge.
4. 4x3 in. ange reducer assembly available for 3 in. ange connections. See Parts List.

4
Type 63EGLP
Figure 3. Type 63EGLP Operational Schematics
INLET PRESSURE
OUTLET (EXHAUST) PRESSURE
ATMOSPHERIC PRESSURE
LOADING PRESSURE
TYPE 63EGLP AT NORMAL CONDITION
(BOTH MAIN VALVE AND ACTIVE PILOT ARE CLOSED)
TYPE 63EGLP AT OVERPRESSURE CONDITION
(ACTIVE PILOT DISCHARGES LOADING PRESSURE, MAIN VALVE
DISCHARGES EXCESS INLET PRESSURE)
ACTIVE
PILOT
ACTIVE
PILOT
SPRING
DIAPHRAGM VALVE
INACTIVE
PILOT
INACTIVE
PILOT
HANDLE ASSEMBLY HANDLE ASSEMBLY
HANDLE ASSEMBLY IS ALWAYS POINTING AWAY FROM THE ACTIVE PILOT.
ROTATION OF HANDLE ALLOWS CHANGING OF ACTIVE PILOT.
ACTIVE
PILOT
ACTIVE
PILOT
INACTIVE
PILOT INACTIVE
PILOT
HANDLE ASSEMBLY HANDLE ASSEMBLY
VALVE PLUG
MAIN SPRING
PILOT
DISCHARGE MAIN VALVE
DISCHARGE
BULK STORAGE TANK BULK STORAGE TANK

5
Type 63EGLP
Figure 4. Type 6358EBLP Operational Schematics
INLET PRESSURE
OUTLET (EXHAUST) PRESSURE
ATMOSPHERIC PRESSURE
LOADING PRESSURE
EXPANDED VIEW OF THE TYPE 6358EBLP RELIEF PILOT DIAPHRAGM ASSEMBLY AND VALVE PLUG
DIAPHRAGM
ASSEMBLY
TO EXHAUST PORT
LOWER PORTION
OF VALVE PLUG
UPPER PORTION
OF VALVE PLUG FIXED
RESTRICTION
TO MAIN VALVE
DIAPHRAGM
HOLLOW PASSAGE
IN VALVE PLUG STEM
Principle of Operation
A pressure relief valve is a throttling pressure control
device that opens and closes to ensure the upstream
pressure does not rise above a predetermined pressure.
Refer to Figure 3. Type 63EGLP pressure relief valve
with dual-pilot assembly has an active pilot and a
standby pilot. Only the active pilot senses the changes
in the inlet pressure. The handle assembly is always
pointing away from the active pilot.
As long as the inlet pressure is below the set pressure,
the pilot control spring keeps the pilot valve plug closed.
Inlet pressure passes through the pilot restriction and
through the hollow passage of the valve plug then
registers as loading pressure on top of the main valve
plug. Force from the main spring, in addition to pilot
loading pressure, provides downward loading pressure
to keep the main valve plug tightly closed.
When the inlet pressure rises above the set pressure,
the pressure on the pilot diaphragm overcomes the
control spring and opens the valve plug. The pilot then
exhausts the loading pressure from the top of the main
valve plug. The pilot continuously exhausts gas while
inlet pressure is above the set pressure. The inlet
pressure unbalance overcomes the main spring force
and opens the plug.
As the inlet pressure drops below the set pressure, the
pilot control spring closes the pilot valve plug and the
pilot exhaust to atmosphere stops. Force from the main
spring, along with pilot loading pressure, pushes the
plug onto the seat, producing tight shutoff.
Installation
!
WARNING
Personal injury, equipment damage or
leakage due to escaping gas or bursting
of pressure-containing parts may result
if the relief valve is installed where its
capabilities can be exceeded or where
conditions exceed any ratings of the
adjacent piping or piping connections.
To avoid injury or damage, install a
Type 63EGLP relief valve where:
• Service conditions are within unit
capabilities (including those given in
the Specications section)
• Service conditions are within
applicable codes, regulations
or standards

6
Type 63EGLP
Figure 5. Pilot Port Functions (bottom view)
PORT C
(LOADING)
PORT A
(EXHAUST)
PORT D
(CONTROL)
PORT A (EXHAUST)—THE MAIN VALVE LOADING PRESSURE IS DISCHARGED TO THE MAIN VALVE OUTLET OR TO ATMOSPHERE PRESSURE.
PORT C (LOADING)—A LOADING PRESSURE SIGNAL IS SENT FROM THIS PORT TO THE MAIN VALVE DIAPHRAGM CASING.
PORT D (CONTROL)—THE MAIN VALVE INLET PRESSURE IS SENSED AT THIS PORT.
Additionally, physical damage to the
relief valve could break the pilot o󰀨 the
main valve, causing personal injury and
property damage due to escaping gas.
To avoid such injury or damage, install
the unit in a safe location.
1. Call a qualified personnel and use proper
equipment when installing, operating and
maintaining relief valves. Before installing, inspect
the main valve, pilot and tubing for any shipment
damage or foreign material that may have collected
during crating and shipment. Make certain the body
interior is clean and the pipelines are free of foreign
material. To install a flanged body, use suitable line
gaskets and good bolting practices. Main body
gasket and studs and nuts are not included.
To order, see parts list.
2. Use the lifting sling (key 50) wrapped around
outlet flange (as shipped) to lift the Type 63EGLP
when installing the unit. After installing the valve
on the tank, install rain cap (key 51) on outlet
flange. Ensure that the valve is in the vertical-
up orientation with flow through it matching the
direction of the arrow on the main valve body. An
upstream control line is not required because of
the integral pilot supply tubing.
!
WARNING
Type 63EGLP relief valves vent gas from
the main valve outlet and from the pilot
exhaust. In hazardous or ammable
gas service, personal injury, death or
property damage may occur due to re
or explosion of accumulated vented gas.
To prevent such injury or damage, vent the
gas to a safe location. Design and install
exhaust piping to guard against excessive
ow restriction. Protect the pilot vent and
exhaust piping from condensation or
debris that can clog it.
3. If system operation is necessary during
maintenance or inspection, one pilot can be
isolated while the other pilot actively loads the
main valve to continuously protect the system. If
service to the main valve is required, remove the
upstream pressure.
4. Install a relief valve so that the pilot will exhaust
properly and into a safe place. The pilot spring case
vent must be kept open to atmospheric pressure.
Protect this vent from icing, moisture or other
blockage as required. If the vent assembly (key 16)
remains in the pilot exhaust port (connection A,
Figure 5), it must be pointed down if possible or
otherwise protected.
5. If the exhaust is to be piped to the main valve outlet
or remotely vented, remove the vent assembly
and install obstruction-free tubing or piping with a
minimum number of bends into the 1/4 NPT pilot
exhaust connection. Provide protection on a remote
vent by installing a screened vent cap into the
remote end of the vent pipe.
6. If using pipe, apply a good grade of pipe
compound to the male pipe threads before making

7
Type 63EGLP
the connection. Install tubing or piping into the
appropriate pilot connection.
7. The set pressure of a unit is adjusted by changing
the control spring compression on the pilot.
8. The pilot is factory-set for the set pressure specified
on the order. Some certifications require the
adjusting assembly be protected from tampering
and will come factory-installed with a tamper-
evident wire seal. These units are not adjustable.
Startup and Adjustment
The relief valve is factory set at the pressure
requested. With proper installation completed,
slowly increase pressure while using gauges to
monitor pressure.
Adjustment
Certain congurations or approvals require the pilot to
be secured from adjustment. For assemblies allowing
adjustment, key numbers are referenced in Figure 8.
To adjust relief set pressure of Type 6358EBLP relief
pilot, perform the following procedures.
1. Remove the closing cap (key 12) and loosen the
locknut (key 11).
2. Turn the adjusting screw (key 10) clockwise to
increase or counterclockwise to decrease the relief
set pressure.
3. Introduce pressure to the relief valve slightly
higher than the desired relief set pressure.
Monitor inlet pressure to the relief valve with a
pressure gauge. The relief valve should start
releasing excess pressure as soon as the inlet
pressure to the relief valve exceeds the desired
relief set pressure.
4. If the desired relief set pressure is achieved,
tighten the locknut to lock the adjusting screw and
install the closing cap.
5. Apply wire seal or other adjustment protection
if available.
Shutdown
1. Remove all pressure from the upstream system
or tank.
2. Release all pressure from the main valve and pilot
by opening an upstream vent valve or by slightly
loosening one of the compression ttings on the
pilot supply tubing or actuator tubing until the
trapped pressure starts bleeding out.
3. Once all pressure is released, nger tighten the
compression tting, then use appropriate wrench to
turn the nut to 1/4 turn.
Maintenance
Relief valve parts are subject to normal wear and
must be inspected and replaced as necessary. The
frequency of inspection and replacement of parts
depends upon the severity of service conditions or the
requirements of local, state and federal regulations.
Visually inspect the physical condition of the relief
valve at least once a year to check if there are
leaks or damage to the relief valve. If the relief
valve or pilots show any visible damage, corrosion,
evidence of tampering or if water, dirt or debris is
found in the discharge side of the relief valve, the
valve must be cleaned, repaired and retested or
replaced immediately. Observe the rain cap (key 51)
periodically. If it is no longer on valve outlet ange,
inspect the unit.
It is recommended to switch the lever/handle
assembly yearly to activate alternate pilot. It is also
recommended to replace both pilots every 10 years.
Since the elastomer seals in a relief valve are subject
to normal deterioration, Fisher™ recommends that
a relief valve not be used for longer than 15 years
without repair, retest or replacement. Earlier repair
or replacement may be required due to severe
service conditions or code requirements. If leakage is
observed from the relief valve during inspection, the
main seals should be replaced and the relief valve
retested or the relief valve replaced immediately.
Note
Confirm the lever/handle is completely
pointed toward the inactive pilot. Do not
have it pointed toward the active pilot or
in between the two pilots.
Due to the care Emerson takes in meeting all
manufacturing requirements (heat treating,
dimensional tolerances, etc.), use only replacement
parts manufactured or furnished by Emerson.
Lubricate all O-rings, gaskets and seals with a good
grade of general-purpose grease and install gently
rather than force into position. Update nameplates to
accurately indicate any eld changes in equipment,
materials, service conditions or pressure settings.

8
Type 63EGLP
!
WARNING
To avoid personal injury and
equipment damage, isolate the valve
from all pressure. Cautiously release
pressure from the valve before
attempting disassembly.
Type 63EGLP Dual-Pilot Assembly
To Change Out A Pilot
Note
This section only applies to
Type 63EGLP assemblies received with
two pilots. If your assembly only has
one pilot, refer to section To Install an
Additional Pilot. Replacing one of the
two pilots requires the following tools
and Fisher™ Key Numbers:
• Wrench Sizes (recommend open-ended or
adjustable): 11/16 in.
• Required Fisher Key Numbers
(QTY): Matching Type 6358EBLP or
6358EBHLP Pilot (x1)
• Option Key Numbers (QTY): 49 (x2)
To easily identify the active pilot, check
the direction of handle assembly. The
handle assembly is always pointing
away from the active pilot. See Figure 3.
CAUTION
Only apply thread sealant to Male NPT
threads. Sealant applied to female pipe
connections or to compression ttings
could inhibit the seal and result in a leak
or product contamination.
1. The Type 6358EBLP pilot ships preassembled
with a 1/4 in.-by-Compression elbow (key 43,
Figure 9) oriented in the correct direction in Port C
(Figure 5). If your pilot does not have this elbow
installed, please contact your local Fisher LP-Gas
Distributor to obtain the correct part.
CAUTION
A small amount of vapor release
may occur during steps 2 through 4.
If the main valve or alternate pilot
continuously vents while conducting
steps 2 through 4, return the handle to
the previous position and contact your
local LP-Gas distributor.
2. Locate the wire seal securing the sliding lock
mechanisms on the ball valve handle and remove
it. The wire seals are factory installed to discourage
tampering from untrained professionals and must
be replaced upon completion.
3. The 3-way ball valves are factory-equipped with
positive stops to prevent over-rotation. In the event
these stops have been removed, do not over-
rotate the handle assembly as this may cause
improper valve operation. Slowly rotate the handle
assembly (key 48) of the 3-way valves until the
handle assembly points to the pilot that will be
removed. The handle assembly should be oriented
such that the sliding handle locks are capable of
sliding into place.
4. Gently loosen the 11/16 in. compression fitting
securing the stainless steel line to the inactive pilot
to bleed off trapped pressure.
CAUTION
If excessive amounts of process
uid continue to discharge out of the
tting, secure the tting and conrm the
ball valve handle orientation is correct.
If the orientation is correct and you
are unable to completely depressurize
the inactive pilot, contact your local
LP-Gas distributor for additional support
as the ball valve assembly may need to
be replaced.
5. Once the inactive pilot is completely depressurized,
remove the compression fitting and move the
stainless steel tube out of the way.
Note
Loosening the compression tting on
the other end of the tube may make this
step easier.
6. Hold the remaining pipe nipple (key 36) in place
with a pipe wrench and remove the pilot.

9
Type 63EGLP
7. Clean the exposed pipe nipple and apply new
thread sealant before threading the new pilot onto
the nipple. Make sure the pipe wrench is utilized
to secure the pipe nipple. Install the pilot such
that the pipe nipple threads into Port D. Continue
tightening until snug, tightening further until the
pilot adjusting screw points in the same direction
as the outlet of the main valve body.
8. Re-attach the 11/16 in. compression fitting
assembly on the stainless tube connecting the
pilot and 3-way ball valve. Finger tighten the
compression fitting assembly, then use appropriate
wrench to turn the nut 1/4 turns (assuming the
ferrule is already clamped to the tube).
9. Slowly reverse step 3, taking note of the preceding
cautions. Once the handle assembly points away
from the newly installed pilot, the new pilot should
be active and pressurized. Perform a leak check
on all connections and fittings.
a. At this time you may choose to continue using
the new pilot as the main control pilot or rotate
the handle assembly to utilize the alternate
pilot as the main control pilot.
10. The reserve pilot should be purged of pressure
to prolong service life and minimize the risk of
vapor reliquefying in the pilot and the piping.
Refer to step 4 to properly purge the reserve pilot.
After purging the reserve pilot, nger tighten the
compression tting, then use appropriate wrench
to turn the nuts to 1/4 turn. Install the wire seals.
To Install an Additional Pilot
Note
This section only applies to
Type 63EGLP assemblies received with
one pilot. If your assembly has two
pilots, skip to section To Change Out
a Pilot. Installing the additional pilot
requires the following tools and Fisher™
Key Numbers:
• Wrench Sizes (recommend open-
ended or adjustable): 9/16 in.,
11/16 in. and 7/8 in.
• Pipe Wrench: recommend maximum
length: 12 in.
• Required Fisher Key Numbers
(QTY): 36 (x1), 43 (x1), 44 (x1),
Matching Type 6358EBLP Pilot (x1)
• Fisher Key Numbers (QTY): 49 (x2)
1. The Type 6358EBLP pilot ships preassembled
with a 1/4 in.-by-Compression elbow (key 43,
Figure 9) in Port C oriented in the same direction
as the spring case. If your pilot does not have this
elbow installed, please contact your local Fisher
LP-Gas Distributor to obtain the correct part.
2. Confirm that the handle assembly is pointing
AWAY from the ACTIVE pilot. The handle
assembly has a sliding lock mechanism that is
wire sealed at the factory before shipment. If
the wire seal has been damaged or is missing,
proceed with caution.
CAUTION
Product may be trapped between the
3-way valve seal and the pipe plugs. Use
caution when proceeding to step 3.
3. Secure the first 3-way valve with an appropriate
7/8 in. wrench. Using an appropriate 9/16 in.
wrench, slowly remove the 1/4 NPT pipe plug.
If any pressure is trapped between the 3-way
valve and the plug, it should quickly dissipate. If
pressure continues to bleed, reinstall the plug and
contact your authorized Fisher LP-Gas Distributor
as the 3-way valve may need replacing.
4. Repeat step 3 on the remaining 3-way valve.
CAUTION
Only apply thread sealant to Male NPT
threads. Sealant applied to female pipe
connections or to compression ttings
could inhibit the seal and result in a leak
or product contamination.
5. Clean the FNPT threads on the 3-way valves.
Apply thread sealant to one end of the
6 in. Male NPT pipe nipple (key 36) and install
the pipe nipple into the lower 3-way valve
Female NPT connection. Tighten it in place with an
appropriately size pipe wrench.
6. Apply thread sealant to the Male NPT end of one
of the 1/4 in.-by-Compression elbows (key 43).
Using an appropriate 5/8 in. wrench, install the
compression fitting in the Female NPT outlet of the
upper 3-way valve until snug, tightening until the
compression fitting is facing in the same direction
as the main valve outlet.

10
Type 63EGLP
7. Apply thread sealant to exposed end of the
6 in. Male NPT pipe nipple. To install the new pilot,
thread pilot Port D onto the pipe nipple until snug,
tightening until the spring case and compression
fitting are oriented in the same direction as the
main valve outlet.
8. Orient the stainless steel tubing (key 44) to
connect the compression fitting on the pilot to
the compression fitting on the 3-way valve. Finger
tighten the compression fitting assembly, then use
appropriate 11/16 wrench to turn the nut 1/4 turns
(assuming the ferrule is already clamped to the tube).
CAUTION
A small amount of vapor release
may occur during steps 10 and 11.
If the main valve or alternate pilot
continuously vents while conducting
steps 10 or 11, return the handle to the
previous position and contact your local
LP-Gas distributor.
9. Locate the wire seals securing the sliding
lock mechanisms on the 3-way valve handle
and remove them. The wire seals are factory
installed to discourage tampering from
untrained professionals and should be replaced
upon completion.
10. The 3-way ball valves are factory-equipped with
positive stops to prevent over-rotation. In the
event these stops have been removed, do not
over-rotate the handle assembly as this may
cause improper valve operation. Slowly rotate
the handle assembly (key 48) of the 3-way valves
until the handle assembly points away from
the newly installed pilot. The handle assembly
should be oriented such that the sliding handle
locks are capable of sliding into place. Once the
handle assembly points away from the newly
installed pilot, the new pilot should be active
and pressurized. Perform a leak check on all
connections and fittings.
a. At this time you may choose to continue using
the new pilot as the main control pilot or rotate
the handle assembly to utilize the alternate pilot
as the main control pilot.
11. The reserve pilot should be purged of pressure to
prolong service life and minimize the risk of vapor
reliquefying in the pilot and the piping. Gently
loosen the 11/16 in. compression fitting securing
the stainless steel line to the inactive pilot to bleed
off trapped pressure. After purging the inactive
pilot, finger tighten the compression fitting, then
use appropriate wrench to turn the nuts to 1/4 turn.
Install the wire seals.
Type 63EGLP Main Valve
CAUTION
The Main Valve Assembly can only be
repaired or modied where local codes
or restrictions allow. Check with your
LP-Gas distributor or local Authority
Having Jurisdiction for information on
restrictions that may apply.
Replacing Trim Sealing Parts
Perform this procedure if inspecting, cleaning or
replacing individual parts in the trim package, by using
Repair Kit Part No. R63EGLPX012. Key numbers
for the Type 63EGLP main valve are referenced
in Figure 7.
Note
All disassembly, trim sealing parts change
and reassembly steps in this section
may be performed with the relief valve
still connected to the upstream piping, if
upstream pressure is removed. The pilot
and its pipe nipple must be removed with
the Type 63EGLP main valve.
Access to the spring (key 9) or ange
O-ring (key 21) in step 1 can be gained
without removing the body ange (key 2).
1. Remove the pilots and pilot pipe nipples from the
valve body. Remove the body flange plug (key 27)
and the spring (key 9) and attached parts.
2. Remove the cap screws (key 3) and pry the body
flange (key 2) loose from the valve body (key 1).
3. Use the valve body as a holding fixture if desired.
Flip the body flange over and anchor it on the
valve body as shown in Figure 6, removing the
pipe plug (key 31) first if necessary.
4. To gain access to the port seal (key 12), upper
seal (key 15) or valve plug parts, unscrew the
seat ring (key 13) from the cage (key 11) and the
cage from the body flange (key 2). For leverage, a
wrench handle or similar tool may be inserted into
the orifice slots (Figure 6) and a strap wrench may

11
Type 63EGLP
be wrapped around the cage or a soft bar may be
inserted through the windows of a standard cage.
To remove the piston ring (key 14) and/or plug
O-ring (key 20), remove the valve plug (key 16)
from the body flange, insert a screw-driver into the
pre-cut fold over area of the piston ring and unfold
the piston ring.
Note
Installing parts without lubrication or
overtightening parts may a󰀨ect shuto󰀨.
5. Replace and lightly lubricate the gasket (key 4),
cage O-ring (key 17), port seal (key 12) and
upper seal (key 15). Ensure that port and upper
seals are installed in their retaining slots with the
grooved sides facing out. Also lubricate any other
surfaces as necessary for ease of installation.
For proper operation, a Type 63EGLP valve plug
must have pipe plugs (key 31) installed in all four
balancing ports.
Note
When tightening threaded parts together,
use a method of tightening, backing o󰀨
and tighten again until the union is snug.
6. Remove and replace the plug O-ring (key 20) and
piston ring (key 14) onto the valve plug (key 16).
Insert the valve plug into the body flange (key 2),
install the cage (key 11) plus upper seal (key 15)
and cage O-ring (key 17) into the body flange
and then install the seat ring (key 13) plus port
seal (key 12) into the cage. Use the valve body
as a holding fixture during this step as shown in
Figure 6 and insert a wrench handle or similar tool
into the orifice slots for leverage when tightening
the orifice and cage.
Note
When installing the main valve Repair
Kit, align the body ange and valve body
side tappings.
7. Remove the upside-down body flange (key 2) if
it was anchored on the body. Lightly lubricate the
cage seating surfaces of the valve body web and
the body flange. Install the body flange on the
body (key 1) and secure it evenly with the cap
screws or stud bolts (key 3). With a Type 63EGLP
main valve, reinstall the 3-way valve and its pipe
nipple and connect the pilot tubing.
Type 63EGLP Main Valve Cap Screw (key 3) Torque
SIZE TORQUE
NPS DN Ft-Lbs N•m
4 100 160 to 200 217 to 271
8. Install the spring (key 9). Remove and replace the
flange O-ring (key 21) on the flange plug (key 27).
Install the flange plug; if necessary, compress
the spring enough to ensure secure engagement
of plug and body flange threads before final
tightening of the plug.
Parts Ordering
Each Type 63EGLP relief valve is assigned an
FS number which can be found on the nameplates.
Refer to this number when contacting your local
Sales Ofce for assistance or when ordering
replacement parts.
When ordering a replacement part, be sure to include
the complete 11-character part number. Separate kits
containing all recommended spare parts are available
for both the main valve and pilot.
W3012_1 W2772_1
Figure 6. Replacing Trim Parts on Site Using Body as Holding Fixture
LIFTINGTHEENTIRETRIMPACKAGE UNSCREWING OF CAGE FROM
BODY FLANGE
FLIPPING THE BODY FLANGE OVERAND
ANCHORING IT ON THE VALVE BODY

12
Type 63EGLP
Parts List
Main Valve (Figure 7)
Key Description Part Number
Main Valve Parts kit (included are keys 4, 12,
14, 15, 17, 20 and 21) R63EGLPX012
Tank to Valve studs and
nuts mounting kit (not included) MK63EGLP001
4 in. Spiral Wound Gasket (not included) ERSA03240A0
1 Valve Body, WCB Steel ERAA02116A0
2 Body Flange
CF8M Stainless steel, ENC, heat-treated 24A9032X012
3 Cap Screw, Zinc-plated steel (8 required) 1A485724052
4* Gasket, composition 14A5650X082
9 Spring, Steel 14A6634X012
11* Cage, Linear, heat-treated Stainless steel 34B5840X012
12* Port Seal, Nitrile (NBR) 24A5643X062
13* Seat Ring, 416 Stainless steel 24A5640X012
14* Piston Ring
Polytetrafluoroethylene (PTFE) (Clear) 14A5645X022
15* Upper Seal, Nitrile (NBR) 24A5644X062
16* Valve Plug, heat-treated 416 Stainless steel 24A8182X012
17* Cage O-ring, Nitrile (NBR) 10A3481X082
20* Plug O-ring, Nitrile (NBR) 14A5688X132
21* O-ring, Nitrile (NBR) 10A3800X162
24 Drive Screw, Stainless steel (2 required) 1A368228982
25 Flow Arrow, Stainless steel 1V105938982
26 Nameplate - - - - - - - - - - -
27 Plug (not used with optional travel indicator)
Zinc-plated steel 14A9684X012
31 Pipe Plug, Plated steel (4 required) 1E823128982
45 Pipe Plug, Carbon steel (not shown) 1A398524182
46 Deflector, Plated-Carbon steel (not shown) T13091T0012
47 Drive Screw, Plated-Carbon steel
(2 required) (not shown) 1A676728992
Mounting Parts (Figure 9)
Key Description Part Number
Flange Reducer 4X3 in. CL300 RF
for 3 in. flange connections(1) ERAA07958A0
36 Pipe Nipple (2 required) 1C2100X0012
37 Pipe Nipple 1N5842X0022
38 Pipe Nipple 1F3948X0012
39 Pipe Nipple 1N5842X0022
40 Pipe Nipple 11A3740X0A2
41 Connector 15A6002XW22
42 Elbow (3 required) 1B8608X0012
43 Elbow (5 required) 15A6002XW32
44 Tubing (2 required) 0500213809W
45 Tubing 0500213809W
48 Lever Assembly ERAA03023A0
49 Lead Seal and Wire (2 required) (not shown) T12315T0022
50 Lifting Sling (not shown) ERAA03264A0
51 Rain Cap (not shown) ERAA03263A0
52 Lead Seal and Wire (not shown) 1D884799012
Types 6358EBLP and 6358EBHLP Pilot
(Figure 8)
Key Description Part Number
1 Pilot Body, CF8M Stainless steel 39A5972X012
2 Spring Case, Stainless steel 27B9722X012
3 Body Plug, Stainless steel 1B7975X0052
4* Valve Plug Assembly, Stainless steel 18B3427X072
5* Diaphragm Assembly,
Type 6358EBLP, Nitrile (NBR)
85 to 200 psig / 5.8 to 13.8 bar 18B3428X012
180 to 350 psig / 12.4 to 24.1 bar 18B3428X082
Type 6358EBHLP, Nitrile (NBR) 18B3429X012
6 Connector Cap, Stainless steel 14B9813X012
7 Control Spring
Type 6358EBLP
85 to 140 psi / 5.8 to 9.7 bar 17B1261X012
130 to 200 psi / 9.0 to 13.8 bar 17B1263X012
180 to 350 psi / 12.4 to 24.1 bar 17B1264X012
Type 6358EBHLP
250 to 450 psi / 17.2 to 27.6 bar 17B1263X012
8 Spring Seat, Zinc-plated steel 17B0515X012
9 Stem Guide, Stainless steel 16A2923X012
10 Adjusting Screw
Type 6358EBLP
85 to 140 psi / 5.8 to 9.7 bar 17B1261X012
130 to 200 psi / 9.0 to 13.8 bar 17B1263X012
180 to 350 psi / 12.4 to 24.1 bar 17B1264X012
Type 6358EBHLP
250 to 450 psi / 17.2 to 27.6 bar 17B1263X012
11 Locknut 1D667728982
12 Closing Cap, Plastic 24B1301X012
13* Body Plug O-ring, Nitrile (NBR) 1F113906992
14 Valve Spring 1E701337022
15 O-ring 10A7777X012
16 Vent Assembly (2 required) Type Y602X1-A12U
17 Machine Screw (6 required) (not shown)
Type 6358EBLP 1V4360X0022
Type 6358EBHLP T12980T0012
18 Connector Cap O-ring, Nitrile (NBR) 10A0904X042
20 Restriction, High Gain 17A7279X012
36* Gasket, Nitrile (NBR) 1U1716X0062
37 Stem O-ring, Nitrile (NBR) 16A2920X072
38 Lower Spring Seat 18B1248X022
40 Diaphragm Limiter for Type 6358EBLP
at 180 to 350 psig / 12.4 to 24.1 bar 10B4407X012
*Recommended spare part.
1. Contact factory for details. Gasket and bolts and nuts are not included. Valve to reducer bolts and nuts mounting kit: MK63EGLP002. 3 in. Spiral Wound Gasket: T1056138992.

13
Type 63EGLP
35A3174-A
COMPLETE STEEL MAIN VALVE ASSEMBLY
Figure 7. Type 63EGLP Main Valve Trim Package
TRIM PACKAGE ASSEMBLY
25A3169_B
24
4 15 11 12 1 16 31 13 17
26 2 21 27 9 20 14 3 24 25
2
4
9
15
11 17 12 13 20 14
16 21 27

14
Type 63EGLP
TYPE 6358EBLP PILOT INTERIOR VIEW TYPE 6358EBHLP PILOT INTERIOR VIEW
TYPE 6358EBLP PILOT WITH DIAPHRAGM LIMITER
FOR 180 TO 350 psig / 12.4 TO 24.1 bar
SET PRESSURE RANGE INTERIOR VIEW
Figure 8. Types 6358EBLP and 6358EBHLP Pilot Assemblies
48B3430 48B3431_A
48B3430_A
APPLY SEALANT (S)
S
S
S
12
11
2
6
14
20
16
4
1
13
10
8
7
18
38
9
5
36
15
16
3
37
40
S
S
S
12
11
2
6
14
20
16
4
1
13
10
8
7
18
5
38
9
36
37
16
3

15
Type 63EGLP
TYPE 6358EBLP
PILOT ASSEMBLY
TYPE 6358EBLP
PILOT ASSEMBLY
FRONT VIEW
BACK VIEW
(ALL PARTS EXCEPT PILOTS FROM TYPE 63EGX7)
41
39
42
45
43
43
43
37
36
38
42
42
40
48
44
44
43
36
Figure 9. Mounting Parts Assembly
ERAA03024

Type 63EGLP
Facebook.com/EmersonProcessManagement
LinkedIn.com/company/emerson-process-management
Twitter.com/emersonprocess
[email protected]
Fisher.com
D450319T012 © 2013, 2016 Emerson Process Management Regulator
Technologies, Inc. All rights reserved. 09/16.
The Emerson logo is a trademark and service mark of Emerson
Electric Co. All other marks are the property of their prospective owners.
Fisher™ is a mark owned by Fisher Controls International LLC, a
business of Emerson Process Management.
The contents of this publication are presented for information purposes
only, and while effort has been made to ensure their accuracy, they are
not to be construed as warranties or guarantees, express or implied,
regarding the products or services described herein or their use or
applicability. All sales are governed by our terms and conditions, which
are available on request. We reserve the right to modify or improve the
designs or specications of our products at any time without notice.
Emerson Process Management Regulator Technologies, Inc does not
assume responsibility for the selection, use or maintenance of any
product. Responsibility for proper selection, use and maintenance of any
Emerson Process Management Regulator Technologies, Inc. product
remains solely with the purchaser.
Emerson Process Management
Regulator Technologies
Americas
McKinney, Texas 75070 USA
T [phone]
[phone]
Europe
Bologna 40013, Italy
T [phone]
Asia Pacic
Singapore 128461, Singapore
T [phone]
Middle East and Africa
Dubai, United Arab Emirates
T [phone]