Emerson Fisher F Series User manual

F Series
D450008T012
Instruction Manual
MCK-1060
May 2009
www.emersonprocess.com/regulators/lp
F Series Excess Flow Valves for LP-Gas and NH3
!
WARNING
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or re causing property damage and
personal injury or death.
Fisher®equipment must be installed,
operated, and maintained in accordance
with federal, state, and local codes and
Fisher instructions. The installation in
most states must also comply with NFPA
No. 58 or ANSI K61.1 standards.
Only personnel trained in the proper
procedures, codes, standards, and
regulations of the LP-Gas or NH3
industries should install and service
this equipment.
!
WARNING
A break or leak down stream of an
excess ow valve that does not allow a
ow equal to the valve ow rating will
not actuate the excess ow valve and
could result in a re or explosion from
leaking gas. After the excess ow
valve closes, the leakage through the
equalizing hole must be controlled or a
hazard can be created. For this reason
the operator must be familiar with the
system shutoff valves and close the
system if an emergency occurs.
Reference NPGA-113–“The Limitations of
Excess Flow Check Valves for LP-Gas.”
Introduction
Scope of the Manual
This instruction manual covers installation and
maintenance for Fisher® F Series excess ow valves
used on LP-Gas and anhydrous ammonia.
DOT Passive Shutdown
Equipment Requirement
DOT regulations 49 CFR§173.315(n)(2) require certain
cargo tanks transporting propane, anhydrous ammonia
and other liquied compressed gases to be equipped
with passive emergency discharge control equipment
that will automatically shutoff the ow of product
without human intervention within 20 seconds of an
Figure 1. F Series Excess Flow Valves
TYPE F110
TYPE F110A
TYPE F100
TYPE F138 TYPE F130
TYPE F134 TYPE F190

F Series
2
unintentional release caused by complete separation
of a delivery hose. The design for each passive
shutdown system must be certied by a Design
Certifying Engineer (DCE) and all components of
the discharge system that are integral to the design
must be included in the DCE certication. The DCE
certication must consider any specications of the
original component manufacturer.
Specications
1. LP-Gas or NH3service.
* Nominal Pipe Size.
Maximum Operating Pressure: 250 psig (17,2 bar)
Maximum Differential Pressure: 15 psig (1,0 bar)
Closing Flow Tolerance: 10% to -20% of rated ow
In the case of downstream ruptures in hose or piping,
a variety of operating conditions routinely encountered
during an unloading operation restrict the rate of
ow through the excess ow valve and make such
a valve unsuitable to serve as the means of passive
shutdown required under 49 CFR§173.315(n)(2).
Such variables include restrictions incorporated
in the discharge system (due to pumps, pipe and
hose length and dimensions, branching, elbows,
APPLICATION
INLET
CONNECTION,
NPS*
OUTLET
CONNECTION,
NPS
TYPE NUMBER U.L. RATED CLOSING FLOW, PROPANE
(HORIZONTAL POSITION) DIFFERENTIAL
PRESSURE,
PSIG (bar)
Brass Steel Liquid GPM
(l/min)
Vapor SCFH (SCMH)
25 Psig
(1,7 bar) Inlet
100 Psig
(6,9 bar) Inlet
Portable Service
(Torches,
burners, etc.)
Male POL
9/16 –18
UNF LH
F110 —0.7 (2,6) 120 (3,4) 204 (5,8) 7.4 (0,51)
F183 — 1.5 (5,7) 335 (9,5) 570 (16,1) 9.7 (0,67)
1/4 MNPT F173 — 0.7 (2,6) 120 (3,4) 204 (5,8) 7.4 (0,51)
F181 — 1.5 (5,7) 335 (9,5) 570 (16,1) 9.7 (0,67)
Soft Nose
Male POL
9/16 –18
UNF LH F110A —0.7 (2,6) 120 (3,4) 204 (5,8) 7.4 (0,51)
1/4 MNPT F173A —
In-Line
1/4 MNPT 1/4 FNPT F138 — 1.8 (6,8) 377 (10,7) 641 (18,2) 1.4 (0,10)
Male POL 1/2
SAE Flare F202 — 1.9 (7,2) 634 (18,0) 1100 (31,2) 2.6 (0,18)
Tanks (Full or
Half Coupling)
3/4 MNPT 3/4 FNPT
F170 —6.6 (25,0) 1184 (33,5) 2012 (57,0) 1.2 (0,08)
F100 — 8.4 (31,8) 2010 (56,9) 3417 (96,8) 2.4 (0,17)
F101 —20 (75,7) 3459 (98,0) 5880 (167) 8.5 (0,59)
1-1/4 MNPT 1-1/4 FNPT F102 — 33 (125) 6300 (178) 10 630 (301) 10.7 (0,74)
F105 —55 (208) 9982 (283) 16 967 (481) 10.7 (0,74)
2 MNPT 2 FNPT F106 — 85 (322) 18 513 (524) 31 467 (891) 2.6 (0,18)
F107 —100 (379) 20 796 (589) 35 349 (1001) 3.6 (0,25)
In-Line
1 FNPT 1 FNPT F130 — 25 (94,6) 5287 (150) 8986 (254) 3.3 (0,23)
1-1/2 FNPT 1-1/2 FNPT F131 — 60 (227) 11 694 (331) 19 877 (563) 4.7 (0,32)
2 FNPT 2 FNPT F132 — 95 (360) 19 874 (563) 33 877 (959) 2.1 (0,14)
F133 — 155 (587) 29 202 (827) 49 718 (1408) 4.2 (0,29)
Tanks (Full or
Half Coupling)
1-1/2 MNPT x
1 FNPT 1 FNPT F134 — 28 (106) 5181 (147) 8806 (249) 2.7 (0,19)
2-1/2 MNPT x
1-1/2 FNPT 1-1/2 FNPT F135 — 60 (227) 12 000 (340) 20 290 (575) 5.2 (0,36)
Tanks(1) (Full or
Half Coupling)
2 MNPT 2 MNPT x
1-1/4 FNPT
—F190 80 (303) 15 400 (436) 26 250 (743) 3.7 (0,26)
— F191 105 (397) 18 800 (532) 32 000 (906) 8.9 (0,61)
3 MNPT 2 MNPT — F194 165 (625) 32 800 (929) 55 950 (1585) 3.1 (0,21)
— F195 260 (984) 50 650 (1434) 86 350 (2445) 6.9 (0,48)
3 MNPT 3 MNPT X
2 FNPT
— F198 165 (625) 33 000 (935) 56 250 (1593) 3.1 (0,21)
— F199 260 (984) 49 500 (1402) 84 350 (2389) 7.1 (0,49)

F Series
3
Valves with brass materials must not be
used on anhydrous ammonia service.
Installation
CAUTION
Do not install the valve in any piping
which tends to restrict the valve inlet.
This may prevent the excess ow valve
from closing.
Flow through the excess ow valve must
be in the same direction as the ow
arrow stamped on the valve.
1. A rule of thumb for sizing excess ow valves is to
choose a valve with a closing ow 1.5 times the
maximum operating ow. For surge conditions,
2 times maximum ow may be required.
However, the excess ow valve’s closing ow rate
must be less than the capacity of the LP-Gas
or NH3 system in which the valve is being used.
The ow rating of the piping, ttings, pump, valves,
and hose on both the inlet and outlet of the excess
ow valve must be greater than the ow rating of
the excess ow valve. If branching, piping length,
additional valves, reduction in pipe size, elbows, or
other necessary components in the piping system
create restrictions which reduce the ow rating to
less than that of the excess ow valve rating, the
valve will not give excess ow protection, and
additional excess ow valves must be installed at
these points.
2. Brass valves are not suitable for NH3applications.
3. Manually operate the excess ow valve’s poppet
before installation to assure parts were not damaged
in shipment or blocked with dirt or foreign material.
4. Use pipe dope on the male threads of the
valve or the pipeline. PTFE tape or PTFE pipe
dope compound is recommended for the male
threads of the larger valves such as the NPS 2
and 3 (DN 50 and 80) sizes.
5. After the excess ow valve is installed, the
system should be tested for excess ow valve
operation by simulating a break downstream
in the system at the furthermost point being
protected. To test the unit, pressure the
system and then open a shutoff vave quickly
at the farthest point in the piping that the excess
ow valve is intended to protect. There should
be a sudden decrease in ow, indicating that
the valve has closed and is working properly.
reductions in pipe diameter, or a number of other
in-line valves or ttings), low operating pressure as
a result of ambient temperature, or a partially closed
valve downstream from the excess ow valve. Due
to the variety of conditions, in the case of a hose
separation, that can restrict the rate of ow below the
level necessary to activate the excess ow valves, the
F Series excess ow valves cannot be used to satisfy
the passive shutdown equipment requirement under/
in 49 CFR§173.315(n)(2). Also, a Design Certifying
Engineer cannot include the F Series excess ow
valve as a component of the discharge system in any
DCE certication under 49 CFR§173.315(n)(2).
!
EXPLOSION HAZARD
DO NOT USE the F Series excess
ow valves to satisfy the passive
shutdown equipment requirement in
49 CFR§173.315(n)(2). DO NOT
include the F Series excess ow valves in
a DCE certication under
49 CFR§173.315(n)(2). The cargo tank
manufacturer must install some other
equipment that satises the requirement
for passive shutdown capability under
49 CFR§173.315(n)(2).
Failure to follow this warning could result
in serious personal injury or property
damage from a re or explosion in the
event of an unintentional release of
product during an unloading operation.
Description
Excess ow check valves close when the ow rate of
vapor or liquid exceeds the valve’s rated ow capacity.
They are used to protect cylinder, tank, and piping
systems. The valves are available in a variety of sizes
and body congurations.
When ow exceeds the valve’s setting, the valve closes
and remains closed until the system equalizes. A built-
in equalizing passage automatically opens the valve
once pressures on both sides of the poppet are equal.
Specications
CAUTION
If the valve is to be used in service other
than LP-Gas or anhydrous ammonia,
contact the factory to determine if the
valve materials are suitable for the
particular service.

F Series
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business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every 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. We reserve the right to modify or improve the designs or specications of such
products at any time without notice.
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LP-Gas Equipment
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75070 USA
Tel: [phone]
Outside U.S. 1-972-548-3574
For further information visit www.emersonprocess.com/regulators/lp
Because of the bleed that permits the valve to
equalize itself, a small amount of leakage will
continue after the excess ow check closes.
6. To reopen a closed excess ow valve, close a
shutoff valve on either the upstream or downstream
piping. When pressure is equal on both sides
of the valve, it will “click” open and ow can be
resumed by opening the shutoff valve.
!
WARNING
Trained personnel should test the
excess ow valve in a safe location and
with the permission of local authorities
because testing with a ammable gas
is hazardous.
Excess ow closure should be checked
annually or on a regularly scheduled
basis to insure that the valve is
still functional.
Maintenance
Excess ow valves are non-repairable. Replace
non-functioning valves.
Troubleshooting
If the excess ow valve fails to close – check
the following:
1. Flow direction is the same direction as arrow
stamped on the valve.
2. Shutoff valves on the inlet and outlet of the piping
are fully open.
3. Restrictions on the inlet or outlet of the excess
ow valve are restricting ow into or out of the valve.
4. Flow capacity at point of test is not great enough
to close the excess ow valve.
5. Pipe scale, welding slag, or other debris is holding
the valve open.
Premature closing or valve chattering – check
the following:
1. Surge conditions – Increase ow slowly to prevent
surge. A larger excess closing ow may be required.
2. Chattering – Normal ow conditions may be too
near to the closing ow rate, or ow direction is
wrong or back owing is occuring.
3. Restriction on inlet of valve.
!
WARNING
Back owing or owing too near to
the excess ow valve closing rate may
cause chattering which may result
in excessive wear on parts and
valve failure.