Fisher C403-24 and C404-24 Internal Valves Instruction Manual Manuals & Guides

Instruction Manual
MCK-1136

March 2010

Types C403-24 and C404-24

Types C403-24 and C404-24 Internal Valves

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, and ANSI Standard K61.1.

TYPE C403-24

Only personnel trained in the proper
procedures, codes, standards, and
regulations of the LP-gas industry should
install and service this equipment.

The internal valve must be closed except
during product transfer. A line break
downstream of a pump may not actuate

the excess ow valve. If any break

occurs in the system or if the excess

ow valve closes, the system should be

shut down immediately.

Introduction

Scope of Manual

This manual covers instructions for the Type C403-24 and

Type C404-24 3-inch CL300 RF anged internal valves.

Description

Type C403-24: The Type C403-24 double anged

internal valve is intended for special bobtail truck
applications where the pump must be lowered to clear

the truck frame or other obstacles. A shear section in

the lower body permits the valve to shear off in the event

of an accident, leaving the shutoff parts within the tank.

Type C404-24: The single anged Type C404-24 internal

valve is widely used on bobtail trucks with direct connected

pumps. It can also be used on in-line applications.

TYPE C404-24

Figure 1. 3-inch Flanged C400 Series

Both type internal valves can also be used with

transports and on stationary storage tanks. The valves
can be operated by cable or with air.

Designed for use with Propane, Butane, or Anhydrous
Ammonia at ambient temperatures, the valves can be
used on other compressed gases, but the user should

check with the factory to make sure the valves are

suitable for the particular service.

Specications

The Specications table lists specications for
Types C403-24 and C404-24 internal valves.

DOT Internal Self-Closing Stop Valve Requirement
– U.S. Department of Transportation (DOT)

regulations 49 CFR§178.337-8(a)(4) require each
liquid or vapor discharge outlet on cargo tanks
(except for cargo tanks used to transport chlorine,
carbon dioxide, refrigerated liquid, and certain cargo
tanks certied prior to January 1, 1995) to be tted
with an internal self-closing stop valve. Fisher’s “C”

series internal valves comply with the internal

self-closing stop valve requirement under the
DOT regulations.

D450034T012

R

www.FISHERregulators.com/lp

Types C403-24 and C404-24

Specications

Body Size and End Connections

Inlet: 3-inch ASME CL300
(4 5/8-inch (117 mm) diameter bore)

Outlet: 3-inch 300 pounds ASME Flange

Maximum Allowable Inlet Pressure

400 psig (27,6 bar) WOG

Excess Flow Springs

150, 200, 250, or 400 GPM
(568, 757, 946, or 1514 l/min) propane

O.D. AND THICKNESS TO SUIT
CONTAINER SPECIFICATIONS

C

T10489

D MAX

E

B

A

1 (25,4)

MINIMUM

3/4-IO UNC

INCH (mm)

Temperature Capabilities

-20° to 150° F (-29° to 66° C)

Body Material

Cast Steel WCC

Approximate Weight

Type C403-24: 32 pounds (14,5 kg)
Type C404-24: 18 pounds (8,2 kg)

3-INCH ASME CL300 RF FLANGE
MODIFIED (BORE 4-5/8-INCH
(117 mm) DIAMETER AND 5-3/4-INCH
(146 mm) RF)

FLANGE

CL300 RF

ASA

3-INCH

A-BOLTING

DBC NO. SIZE

6.62
8 3/4

(168)

BRFC

5.75

(146)

RF

0.06

(1,52)

D E

1.5

(38,1)

4.62

(117)

MATING
FLANGE

O.D.

8.25

(210)

Figure 2. Tank Flange Dimensions

Installation

Internal Valve

Coat both sides of the spiral wound gaskets with Dow
Corning #111 silicone grease or equivalent. A 3-inch
(DN 80) ASME CL300 RF ange with a modied bore
(see Figure 2) must be installed in the tank. Special

stud bolts, furnished with the valve, are assembled into

this ange. The internal valve and the pump or piping
ange can then be installed as shown in Figure 3.

T11444

PUMP OR
PIPING

3-INCH ASME
CL300 RF FLANGE

Figure 3. Type C404-24 Typical Valve Installation Schematic

The screen should be removed if the valve is to be used

for both lling and withdrawal service or for lling alone.
Filling with screen installed is not recommended.

A hydrostatic relief valve does not need to be

installed adjacent to the valve since the internal valve

automatically relieves excessive line pressure into
the tank.

2

Types C403-24 and C404-24

Keep piping from the valve outlet to the pump full size
and as short as possible with a minimum of bends.
Reduction in pipe size to suit smaller pump inlets

should be made as close to the pump as possible

using forged reducers (swage nipples) or venturi
tapers rather than bushings. This assures minimum
ow resistance and efcient pump operation.

If the valve is also used to provide excess ow
protection, the ow rating of the piping, ttings, pump,

valves, and hose on both the inlet and outlet of the

internal valve must be greater than the ow rating
of the integral excess ow valve within the internal
valve. If branching or other necessary restrictions
are incorporated in the system which reduce the ow
rating to less than that of the excess ow valve rating,
the internal valve will not give excess ow protection.

Selectively Filling Manifolded Tanks

Fisher® internal valves provide positive shutoff only in
one direction, from out of the tank to downstream of the

valve. The internal valves are designed to allow gas
to ow into a tank when the downstream line pressure
exceeds tank pressure. If you want to selectively ll one

or more of the other tanks in a tank manifold system,
you must place a positive shutoff valve downstream of

the internal valve, otherwise, all tanks will be lled at the
same time and at about the same rate.

Actuators

The remote operating control system for the valve
is extremely important, and it must be installed to
conform with the applicable codes. DOT MC331, for
example, most generally applies for trucks.

Fisher offers both cable controls and pneumatic
actuator systems to operate the Types C403 and

C404 series internal valves. It may also be possible

to use cable controls from other manufacturers or to

fabricate a linkage mechanism.

Any control system requires thermal protection (fuse
links) at the valve, at the remote control point and, if
necessary, near the hose connections. The instruction

manuals for Fisher Controls actuator systems show

how to install the fuse links.

The operating linkage must allow the operating lever

to move from the fully closed position to within 2° of

the fully open position. The linkage should not apply
strong force to the lever past the fully open position or
the valve could be damaged.

CAUTION

The internal valve’s closing spring is
not designed to overcome drag in the
control linkage in order to close the
valve. Depending upon the control
system used, an external spring (such
as Fisher drawing number 1K4434) or
positive closing linkage may be needed.
Be sure the control system is installed
to prevent binding that could cause the
valve to stick in the open position.

Excess Flow Operation

The internal valve contains an excess ow function,
or “integral excess ow valve,” that will close when
the ow exceeds the ow rating established by
Fisher. Fisher’s integral excess ow valve installed

on a bobtail truck or transport can provide protection

against the discharge of hazardous materials during
an unloading operation of a bobtail truck or transport
in the event that a pump or piping attached directly to
the internal valve is sheared off before the rst valve,
pump, or tting downstream of the internal valve,
provided that the cargo tank pressure produces a ow
rate greater than the valve’s excess ow rating.

Likewise, if the internal valve is installed on a

stationary tank or in the related downstream piping
system, the integral excess ow valve can provide
protection against an unintentional release of
hazardous materials in the event that a pump or piping

attached directly to the internal valve is sheared off

before the rst valve, pump, or tting downstream of
the internal valve, provided that the ow of product
through the internal valve reaches the rated ow
specied by Fisher.

!

EXPLOSION HAZARD

Installation instructions on Fisher Types P650, P163A,
and P164A cable controls, are in Form MCK-1083.
Fisher Types P613 and P623 pneumatic actuators are
covered in Form MCK-2159.

Restrictions incorporated in the
discharge system of a bobtail truck
or transport or of a stationary tank
(due to pumps, pipe and hose length

3

Types C403-24 and C404-24

RAPID

BLEED

1 2 3 4

T80162

VALVE CLOSED

Figure 4. Operational Schematic For Types C403-24 (shown) and C404-24

and dimensions, branching, elbows,
reductions in pipe diameter, or a number

of other inline valves or ttings), low

operating pressure as a result of ambient
temperature, or a partially closed valve
downstream from the integral excess

ow valve, can restrict the rate of ow

through the internal valve below the level
necessary to actuate the integral excess

ow valve. Therefore, DO NOT USE the
excess ow function of the internal valve

for the purpose of providing protection
against the discharge of hazardous
materials in the event of a rupture of
hose or piping at a point in the discharge

system downstream from the rst valve,
pump, or tting downstream of the

internal valve.

The internal valve is designed with an
internal bleed feature for equalization of

pressure. After the integral excess ow

valve closes, the leakage through the
bleed must be controlled or a hazard can
be created. For this reason the operator
must be familiar with the closure controls
for the internal valves and must close
the internal valve immediately after the

integral excess ow valve closes.

Failure to follow this warning could result
in serious personal injury or property

damage from a re or explosion.

RAPID

BLEED

RAPID BLEED OPEN

FLOW

VALVE OPEN

LIMITED BLEED

FLOW

EXCESS FLOW VALVE

CLOSED

BLEED

DOT Passive Shutdown Equipment Requirement
– DOT regulations 49 CFR§173.315(n)(2) require

certain cargo tanks transporting propane, anhydrous
ammonia and other liquieed compressed gases to be
equipped with passive emergency discharge control
equipment that will automatically shut off the ow of

product without human intervention within 20 seconds of
an 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.

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 integral 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, 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 integral excess
ow function of Fisher®’s “C” Series internal valves
or “F” Series excess ow valves cannot be used to

4

Types C403-24 and C404-24

satisfy the passive shutdown equipment requirement
under/in 49 CFR§173.315(n)(2). Also, a Design
Certifying Engineer cannot include the integral excess
ow valve of a Fisher® “C” Series internal valve or
“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 excess ow function

incorporated into Fisher “C” Series
internal valves or “F” Series excess

ow valves to satisfy the passive

shutdown equipment requirement in
49 CFR§173.315(n)(2). DO NOT include

the excess ow function incorporated

into Fisher “C” Series internal valves or

“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.

Operation

Since the Types C404-24 and C403-24 are most often

used on bobtail trucks, the following procedure applies
to that type of application. Follow these points:

1. Types C400s on bobtails and transports should
never be open when the truck is in motion. If

the control system is not interlocked to prevent
this, the operator is responsible to see that the

valves are closed.

2. Always open the internal valve before opening any
other valves in the line or starting the pump.

3. Move the lever to the half-open position
(Figure 4, View 2) to equalize pressure. When
the main poppet clicks open, move the operating
lever fully open.

4. Open other line valves slowly to avoid sudden
surges which could slug the excess ow valve shut.

5. If the excess ow valve does close, stop the
pump and close the nearest downstream valve.
Move the internal valve’s operating lever back to
the rapid equalizing position and wait for the valve
to click open. Then move the operating lever fully
open and slowly open the downstream valve.

6. All valves should be completely open when
pumping. (Throttling type valves could prevent
the excess ow valve from closing when required.)

7. The operator must always be aware of where the

remote closure controls are located and know

how to operate the controls if an emergency
requires valve closure. When pumping is nished,
make a habit of closing the internal valve from the
remote closure point, thus checking to see that the
control actually is capable of closing the valve.

8. The valve should be open when backlling through
the valve to ll the tank.

Troubleshooting

Internal Valve Will Not Open – This could be due

to leakage downstream, engaging the pump too
soon or from excessive wear in the internal valve. If
excessive volume is in the downstream system, a
longer time is required to equalize the pressures (tank
and downstream) before the pump can be engaged.
To determine if the valve pilot seat is opening, install
a gauge downstream of the valve, operate the valve

actuator; if pressure does not build up to the tank

pressure, the valve pilot seat is not open. This test
should be done with pump off. If the pilot is not opening,
it may be plugged with dirt or some internal part may
be broken. If by operating the lever manually it can be
rotated past the fully open position, there is something
wrong internally and the valve must be disassembled.

Premature Valve Closure – This can be caused from

engaging the pump too soon, by an underrated excess
ow valve spring, or by an improperly connected
internal valve operating lever which does not fully open
the valve. The trouble could also be from a valve that
has its inlet port obstructed or from sudden line surges.
In order to check the valve opening travel, operate the

lever manually to the full travel, wait until valve opens

(usually about 15 seconds), then engage the pump.
If the excess ow closes, the points mentioned above
should be investigated.

5

Types C403-24 and C404-24

Internal Valve Will Not Close – The stub shaft

could be binding or the stem could be bent in the
valve. Before disassembling the valve, check the

actuator mechanism to see that it operates freely by

disconnecting it from the valve lever and cycling it
several times. Also, operate the valve lever manually. If
it sticks in the open position, the packing and bushings
should be replaced. This should free the operating
mechanism if the valve has not been damaged
internally. Refer to the “Maintenance” section.

Low Flow Capacity – This could be caused by too

small an internal valve, too small or long downstream
piping, plugged screens, some other restriction in the
downstream system, or by the bypass valve sticking in
the open position. The bypass valve could also be set
too low and be opening prematurely.

Principle of Operation

Refer to the schematic drawing, Figure 4. In View 1,

the valve is held closed by both tank pressure and the

valve’s closing spring. There is no leakage past the
resilient seats in the poppet to the valve outlet.

The valve is opened by moving the operating lever to
approximately midpoint in its 70° travel (View 2). This
allows the cam to place the rapid equalization portion of
the valve stem in the pilot opening, permitting a larger

amount of product to bleed downstream than if the

operating lever were moved to the full open position.

When tank and downstream pressure are nearly equal
after a few seconds, the excess ow spring pushes
open the main poppet (View 3) and the operating lever
can be moved to the full open position.

If tank pressure is greater than the valve’s outlet

pressure, the main poppet will remain in the closed

position. If valve outlet piping is closed off by other
valves, however, product bleeding through the pilot will
increase until it nearly equals tank pressure and the
main poppet opens.

Note

The main poppet will not open if valve
outlet piping is not closed off so that
the outlet pressure can approach
tank pressure.

Once the main poppet opens, a ow greater than the
valve’s excess ow spring rating or a sufcient surge in
ow forces the main poppet closed against the excess
ow spring (View 4). The pilot valve allows a small

amount of product to bleed, but much less than

View 2 where the rapid equalization portion of the stem
is placed in the pilot opening. When the operating

lever is moved to the closed position, the valve closes

completely and seals tightly (View 1).

Maintenance

CAUTION

Do not use these internal valves if they
leak, fail to work properly or have been
damaged or have missing parts. Prompt
repairs should be made by a properly
trained serviceman. Continued use
without repair can create a hazardous or
injurious situation.

A simple preventative maintenance program for the valve
and its controls will eliminate a lot of potential problems.

Fisher® recommends these steps be conducted
once a month. Also refer to the Department of
Transportation (DOT) CFR 49 Sections 180.416

and 180 Appendix A and B which specic monthly

maintenance and inspection tests for cargo tank
service internal valves and their actuation controls.

1. Inspect the operating lever to see that it

operates freely and that there is no

leakage around the retainer nut. If there is
sticking or leakage, replace the packing and
bushings. Refer to parts list.

2. Check for tight closure of the seat disks. Any
detected leakage, which is normally caused by

disk wear or dirt, scale or debris embedded in

the disk, requires that the internal valve be
removed from service and repaired. Repair most
often requires the replacement of valve disks.
To check for leakage:

a. Close the internal valve and exhaust downstream
pressure. Close the rst valve downstream from

the internal valve, and note any pressure buildup,

using a pressure gauge, between the closed valve
and the internal valve. If piping is cold allow it to
warm to ambient temperature.

6

Types C403-24 and C404-24

b. Refer to CFR 49 Section 180 Appendix B for Meter
Creep Test Methods.

3. All operating controls should be inspected,
cleaned and oiled. The controls should be

checked to see that they fully open—but not over-

travel the internal valve operating lever and
operate freely to close the valve.

4. Standard construction internal valves must be
removed if the container is to be steam cleaned.
Heat can damage the valve’s seats and seals.

5. Standard construction internal valves are not
designed for water service. Immediately after

a container is hydrostatically tested, remove all

water and allow the container to thoroughly dry out.

Disassembly

WARNING

!

Tank pressure must be released
before removing the valve from the
container. Failure to do so could result
in personal injury.

Numbers in parenthesis refer to key numbers in
Figures 5 and 6.

To Replace Packing (keys 15F, 15G, and
15H), bushings (keys 15B and 15K) or
cam (key 15P):

1. With the valve in the tank, close the operating
lever (key 18, not shown) and remove the
downstream pressure in the system.

2. For Type C404-24: Unscrew the capscrew
(key 15R) with a 7/16-inch (11,1 mm) wrench.
For Type C403-24: Remove the pipe plug
(key 22). Using a 3/16-inch (4,76 mm) Allen
wrench, unscrew the cap screw (key 15R).
Remove the washer (key 15S) and the cam
(key 15P).

3. After removing the operating lever (key 18), the
packing can be reached by unscrewing the bonnet
nut (key 15M) and removing the stub shaft
(key 15J). Inspect and replace if necessary, the

packings (keys 15F, 15G, and 15H), bushings
(keys 15B and 15K). Lubricate the packings with
Magna Lub G and the bonnet nut (key 15M) with
Never Seize.

4. Reassemble in the reverse order.
Replace the cap screw (key 15R) with 30 to
35 inch-pounds (3 to 4 N•m) torque.

5. Make sure the operating lever (key 18) can move
freely after the new parts are installed. Conduct

a leak test under pressure with a leak

detection solution.

To Replace Seat Disks (keys 7 and 11) or
the Excess Flow Spring (key 3).

1. Remove the valve from the tank and remove the
screen from the valve.

2. Remove the Guide Bracket (key 47) for
Type C403-24 or the Valve Cage (key 37) for the
Type C404-24.

3. Unscrew hex nut (key 13).

4. Remove both disk holders (keys 6 and 12)
from the stem (key 2).

5. Unscrew the 3 screws (key 9) holding the disk
retainer (key 8) to replace the main disk seat
(key 7).

6. Examine both seat disks (keys 7 and 11) and
replace if necessary.

7. If the excess ow spring (key 3) is changed,
restamp the nameplate with the new excess ow
rating and type number.

8. Always replace the sealing washer (key 23).

9. Reassemble in the reverse order using
15 to 20 foot-pounds (20 to 27 N•m) torque to
install the disk retainer (key 8). Apply Loctite 242 or
equivalent on the stem threads before installing the
hex nut (key 13). Tighten hex nut (key 13) to
80 inch-pounds (9 N•m) torque.

Pressure test the repaired valve for seat leakage,
opening and closing, and excess ow operation as
described in earlier portions of this manual.

7

Types C403-24 and C404-24

80 IN/LB

53

33

47

13

12

11

10

23

38

A

39

40

25

6

9

7

8

3

4

2

A

1

5

41

APPLY LUB/SEAL/ADH

T80154

22

20

21

15C

15D

15F

15G

15H

SECTION A-A

Figure 5. Type C403-24 Internal Valve

15C

15R

15S

15P

15B

15E

15K

15M

15C

8

Parts Ordering

When corresponding about this equipment, always
reference the equipment type number found on
the nameplate. When ordering replacement parts,

reference the complete 11-character part number for

each needed part.

Parts List

Type C403-24 Internal Valve (Figure 5)

Key Description Part Number

Disk Guide Kit for Type C403: T13201T0012
Includes key numbers 13, 39 (2 required),
40 (2 required), 47, and Loctite Compound

Replacement Parts Kit--Packing Assembly
Includes Key Numbers 7, 11, 15B, 15F,15G,
15H, 15K, 19, 23, 43, 44 and both upper
gaskets (valve to tank) for pre 1990
and post 1990 constructions

Type C403 RC40324T012

1 Body, Steel T8013922012
2 Stem Assembly, T11887000A2
Polytetrauoroethylene (PTFE)/Stainless steel
3 Excess Flow Spring, 302 Stainless steel
150 GPM (568 l/min), Yellow T1192537022
200 GPM (757 l/min), Orange T1192437022
250 GPM (946 l/min), Pink T1215237022
400 GPM (1514 l/min), Black T1177337022
500 GPM (1893 l/min), Unpainted T1226237022
4 Spring Seat, Zinc-plated steel T1153624102
5 Closing Spring, 302 Stainless steel T1153737022
6 Disk Holder, Steel T2042924102
7* Main Disk
Nitrile (NBR) T1177403032
Neoprene (CR) T12914T0012
8* Disk Retainer, Zinc-plated steel T1177525072
9 Screw, Carbon-plated steel (3 required) 1A954828992
10* Disk Retainer, Zinc-plated steel T1154224102
11* Bleed Disk
Nitrile (NBR) T11543T0012
Neoprene (CR) T1154303032
12 Disk Holder, Zinc-plated steel T1154424102

Types C403-24 and C404-24

Key Description Part Number

13 Nut, 303 Stainless steel T13200T0012
15B* Bushing, PTFE T1154506992
15C Washer, Zinc-plated steel T1154625072
15D Spring, 302 Stainless steel T1154737022
15E Washer, Zinc-plated steel (2 required) T1154825072
15F* Male Packing Adaptor, PTFE T1154901012
15G* Packing Ring (3 required), PTFE T1155001012
15H* Female Packing Adaptor, PTFE 1H941601012
15J Shaft, 303 Stainless steel T2043135072
15K Bushing, PTFE T1155106992
15L* Rod Wiper, Polyurethane T1155206992
15M Bonnet Nut, Zinc-plated steel T1155324102
15P Cam T1155521992
15R Cap Screw T12576T0012
15S Washer, Carbon-plated steel 1C225628982
18 Operating Lever (Not shown), Steel T1155919312
19* Cotter Pin, Carbon-plated steel (Not Shown) 1H837128982
21 Drive Screw, 18-8 Stainless steel (2 required) 1A368228982
22 Pipe Plug, Zinc T13718T0012
23 Washer, Zinc T1188228982
25 Screen, Stainless steel T12317T0012
30 Fusible Link (Not Shown) 1J157443992
33 Travel Stop, 304 Stainless steel T1240838072
38 Screen Cap, Stainless steel T12318T0012
39 Nut, Carbon-plated steel (2 required) 1J719228982
40* Bolt, 410/416 Stainless steel (2 required) T1127235132
41 Stud Bolt (16 required), Stainless steel 1N946228982
42 Nut, Stainless steel (16 required) 1A368124112
43* Upper Gasket, 304 Stainless steel (Not Shown) T13603T0012
44* Lower Gasket, 304 Stainless steel (Not Shown) T1056138992
47 Guide Bracket, Zinc-plated steel T20798T0012
53 Cap Screw, Carbon-plated steel (2 required) T12776T0012

*Recommended Spare Parts

9

Types C403-24 and C404-24

37

25

40

38

13

80 IN/LB

5

10

8

29

9

2

35

4

28

15P

21

15R

12

11

23

6

7

3

1

2

T40326

APPLY LUB/SEAL/ADH

10

15S

20

15F

15G

15H

15L

18

15J

15B

15C

15D

15E

15K

15M

Figure 6. Type C404-24 Internal Valve

Type C404-24 Internal Valve (Figure 6)

Key Description Part Number

Replacement Parts Kit--Packing Assembly
Includes Key Numbers 7, 11, 15B, 15F,15G,
15H, 15K, 19, 23, 43, 44 and both upper
gaskets (valve to tank) for pre 1990
and post 1990 constructions

Type C404 RC40424T012

1 Body, Steel T8015322012
2 Stem Assembly, T12766T00A2
3 Excess Flow Spring, 302 Stainless steel
150 GPM (568 l/min), Yellow T1192537022
200 GPM (757 l/min), Orange T1192437022
250 GPM (946 l/min), Pink T1215237022
400 GPM (1514 l/min), Black T1177337022
500 GPM (1893 l/min), Unpainted T1226237022
4 Spring Seat, 303 Stainless steel T12764T0012
5 Closing Spring, 302 Stainless steel T1153737022
6 Disk Holder, Steel T2042924102
7* Main Disk
PTFE T1217306242
Peruoroelastomer (FFKM) T12921T0012
8* Disk Retainer, Zinc-plated steel T1177525072
9 Screw, Carbon-plated steel (3 required) 1A954828992
10* Disk Retainer, Zinc-plated steel T1154224102
11* Bleed Disk
PTFE T1214106242
Peruoroelastomer (FFKM) T12876T0012
12 Disk Holder, Zinc-plated steel T1154424102
13 Nut, 303 Stainless steel T13200T0012

Types C403-24 and C404-24

Key Description Part Number

15B* Bushing, PTFE T12762T0012
15C Washer, Zinc-plated steel T1154625072
15D Spring, 302 Stainless steel T1154737022
15E Washer, Zinc-plated steel (2 required) T1154825072
15F* Male Packing Adaptor, PTFE T1154901012
15G* Packing Ring (3 required), PTFE T1155001012
15H* Female Packing Adaptor, PTFE 1H941601012
15J Shaft, 303 Stainless steel T2043135072
15K Bushing, PTFE T1155106992
15L* Rod Wiper, Polyurethane T1155206992
15M Bonnet Nut, Zinc-plated steel T1155324102
15P Cam T1155521992
15R Cap Screw, Zinc-plated steel 1B848024052
15S Washer, Carbon-plated steel 1C225628982
18 Operating Lever, Steel T1155919312
19* Cotter Pin, Carbon-plated steel (Not Shown) 1H837128982
21 Drive Screw, 18-8 Stainless steel (2 required) 1A368228982
23 Washer, Zinc T1188228982
25 Screen, Stainless steel T12317T0012
29 Cap Screw, Carbon-plated steel T12775T0012
30 Fusible Link (Not Shown) 1J157443992
35* Bushing, PTFE T12767T0012
37 Cage, Ductile iron T40298T0012
38 Screen Cap, Stainless steel T13473T0012
40* Bolt, Carbon-plated steel T12776T0012
41 Stud Bolt (8 required), Zinc-plated steel 1P790832982
42 Nut, Stainless steel (16 required) 1A368124112
43* Upper Gasket, 304 Stainless steel (Not Shown) T13603T0012
44* Lower Gasket, 304 Stainless steel (Not Shown) 1P877699152

*Recommended Spare Parts

11

Types C403-24 and C404-24

LP-Gas Equipment

Emerson Process Management
Regulator Technologies, Inc.

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McKinney, Texas 75069-1872 USA
Telephone: [phone]
Telephone: [phone]

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