Emerson C471, C486, C477 Instruction Manual

Download

Instruction Manual D450229T012

February 2019

Types C471, C477 and C486

Types C471, C477 and C486 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 Emerson Process Management Regulator Technologies, Inc. (Emerson)

instructions. The installation in most states must also comply with NFPA No. 58 and ANSI Standard K61.1.

P1197

TYPE C477

TYPE C471

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 the Manual

This manual covers instructions for the Types C471, C477 and C486 internal valves.

Description

The valves are typically used on the inlets and outlets of bobtail and transport trucks and on large stationary storage tanks. They can also be installed in-line. Designed for propane, butane or Anhydrous Ammonia (NH3) at ambient temperatures, the valves

TYPE C486

Figure 1. C471, C477 and C486 Series Internal 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.

DOT Internal Self-Closing Stop Valve Requirement–

U.S. Department of Transportation (DOT) regulations 49CFR§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

“C” Series internal valves comply with the internal

self-closing stop valve requirement under the DOT regulations.

Types C471, C477 and C486

Specications

The Specications section on the following page shows specications for Types C471, C477 and C486

internal valves.

Body Size and End Connection Styles

Types C471 and C477

Inlet: 2 or 3 in. MNPT / DN 50 or 80 Outlet: 2 or 3 in. FNPT / DN 50 or 80

Type C486

Inlet: 3 in. CL300 RF Flange / DN 80 Outlet: 3 in. FNPT / DN 80

Number of Outlets

Type C471: 2 (side and straight through)

Types C477 and C486: 1 (straight through)

Excess Flow Springs

Type C470 Half Coupling and Type C486 Flows:

2 in. / DN 50 Sizes: 105, 150 and 250 GPM / 397, 567 and 946 L/min 3 in. / DN 80 Sizes: 160, 265, 375 and 460 GPM / 605, 1003, 1419 and 1741 L/min

Type C470 Full Coupling Flows:

2 in. / DN 50 Sizes: 60, 80 and 130 GPM / 227, 302 and 492 L/min 3 in. / DN 80 Sizes: 120, 230, 320 and 380 GPM / 454, 870, 1211 and 1438 L/min

Maximum Allowable Inlet Pressure

(1)

400 psig / 27.6 bar WOG

Temperature Capabilities

(1)(2)

-20 to 150°F / -29 to 66°C

Approximate Weights

2 In. / DN 50 Sizes:

Type C471: 11 lbs / 5.0 kg Type C477: 9 lbs / 4.1 kg

3 In. / DN 80 Sizes:

Type C471: 21 lbs / 10 kg Type C477: 16 lbs / 7.3 kg

Type C486: 20 lbs / 9.1 kg

Construction Materials

Ductile Iron: Body (Types C471 and C477)

Stainless steel: Stem Assembly, Excess Flow

Spring, Spring Seat, Closing Spring, Disc Holder, Disc Retainer, Screw, O-ring Seat, O-ring Retainer, Cotter Pin, Spring, Shaft, Screen, Travel Stop, Screen Cap, Bolt, Gasket and Lock Washer

Steel: Body (Type C486), Cap Screw and Operating Lever

Plated steel: Nut, Washer, Bonnet Nut, Guide Bracket and Cap Screw

Polyurethane (PU): Rod Wiper

Polytetrauoroethylene (PTFE): Bushing,

Packing Adaptor and Packing Ring

Nitrile (NBR) (Standard Construction): Main Disc, Bleed Disc and O-ring

Other Disc Material Available from Factory: Polytetrauoroethylene (PTFE),

Fluorocarbon (FKM), Neoprene (CR), Ethylene-Propylene (EPDM) and Kalrez®

1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.

2. Product has passed Fisher™ testing for leakage down to -40ºF / -40ºC.

Principle of Operation

Refer to the schematic drawing, Figure 2. 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 mid-point 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.

Kalrez® is a mark owned by E.I. du Pont de Nemours and Co.

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.

Types C471, C477 and C486

M1170

JET

BLEED

VALVE CLOSED JET BLEED OPEN VALVE OPEN EXCESS FLOW

LIMITED BLEED

VALVE OPEN FLOW

JET BLEED EQUALIZATION

2 3 4

JET BLEED

Figure 2. Operational Schematic

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).

Installation

Mounting and Piping

FLOW LIMITED

FLOW

BLEED

VALVE CLOSED

CAUTION

Excess ow valve closing ow rates are not the same for half and full couplings. Verify the coupling for the desired excess ow rate.

Do not install the valve in any piping tending to restrict the valve inlet

because this may prevent the excess

ow valve from closing.

Do not install the valve with such

extreme torque that the coupling can cut

threads into the valve. This could cause valve distortion and affect the internal

working parts.

Do not use PTFE tape as it may cause

thread galling to occur.

LIMITED BLEED

The internal valves can be installed in either a half

or full coupling. Excess ow spring closing ow

rates vary in half and full couplings, refer to the

Specication section.

Types C471, C477 and C486

O.D. AND THICKNESS TO SUIT

CONTAINER SPECIFICATIONS

3 IN. ASME CL300 RF FLANGE MODIFIED

(BORE 4-5/8 IN. / 117 mm DIAMETER

AND 5-3/4 IN. / 146 mm RF)

TANK

45°

T10489

D MAX

E B A

IN. / mm

1 / 25

MINIMUM

3/4-IO UNC

Figure 3. Tank Flange Dimensions

PUMP OR

PIPING

Figure 4. Valve Installation Schematic

Table 1. Tank Connections

MODIFIED

CL300 ASME RF

FLANGE

3 in. / DN 80 6.62 8 0.75 5.75 / 146 0.06 / 1.5 1.50 / 38 4.62 / 117 8.25 / 210

1. Can be increased up to 4.81 in. / 122 mm for 3 in. valve, if valve and gasket are centered with modied ange opening.

DBC No. Size

For NPT connections, use an appropriate pipe compound, on the male threads of the internal valve and pipeline. Pull the valve into the coupling hand tight and then wrench tighten it for approximately two additional turns. Larger size valves may require an additional amount of torque to obtain a leak-free connection.

DIMENSION, IN. / mm

The valves have a break off section below the inlet pipe thread which is intended to permit the lower valve body to shear off in an accident, leaving the valve seat in the tank. The break off section is designed

for container installations and will probably not provide shear protection if the valve is installed in a pipeline.

D E (Modied)

(1)

3 IN. FNPT

MATING

FLANGE O.D.,

IN. / mm

Keep piping from the valve outlet to the pump full size and as short as possible with a minimum number 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.

A hydrostatic relief valve does not need to be installed adjacent to the valve since the internal valve relieves excessive line pressure into the tank.

Types C471, C477 and C486

Type C486 Flange Installation

Lightly coat both sides of a spiral-wound, or other

suitable, ange gasket with silicone grease or equivalent. An NPS 3 / DN 80, CL300 ASME RF ange with a modied bore (see Figure 3) must be installed in

the tank. Special stud bolts, furnished with the valve,

are assembled into this ange. The internal valve and ange gasket can then be installed as shown in Figure 4 with good ange bolting practices.

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 C470 and C486 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 Emerson actuator systems show how to install the fuse links.

Installation instructions on Fisher Types P650, P163A and P164A cable controls, are in Document D450012T012. Pneumatic actuator installation is covered in Document D450162T012. Type P340 latch/remote release instructions are on Document D450123T012.

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.

Warranty Note

The use of non-Fisher actuators will void

internal valve warranty and may result in

leakage of the gland packing caused by

premature wear. In addition to premature

wear, the use of non-Fisher actuators may result in lower than expected ow rates and possible leakage across the

valve seats.

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 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.

Types C471, C477 and C486

EXPLOSION HAZARD

Restrictions incorporated in the

discharge system of a bobtail truck or transport or of a stationary tank (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

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.

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 49CFR§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 valve, the integral excess ow function of Fisher™ “C” Series internal valves or “F” Series excess ow valves cannot

be used to satisfy the passive shutdown equipment requirement under/in 49CFR§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

49CFR§173.315(n)(2).

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 valve 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.

DOT Passive Shutdown Equipment Requirement—

DOT regulations 49CFR§173.315(n)(2) require certain cargo tanks transporting propane, anhydrous ammonia

and other lique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 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.

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 49CFR§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 49CFR§173.315(n)(2). The cargo tank manufacturer must install some other equipment that satises the

requirement for passive shutdown

capability under 49CFR§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.

Types C471, C477 and C486

Operation

Since the C470 and C486 Series will not open unless the downstream pressure can build-up to equal the inlet pressure, an operating sequence that assures equalization is important.

Follow these points:

1. C470 and C486 Series 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 (Operational Schematic, 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 flow valve shut.

5. If the excess flow 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 flow 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 finished, 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 backfilling through the valve to fill 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,

then engage the pump. If the excess ow closes, the

points mentioned above should be investigated.

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.

Types C471, C477 and C486

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 service person. 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 specify monthly maintenance and inspections 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 Replacing Packing.

2. Check for tight closure of the seat discs. Any detected leakage, which is normally caused by disc wear or dirt, scale or debris embedded in the disc, requires that the internal valve be removed from service and repaired. Repair most often requires the replacement of valve discs. 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.

b. Refer to CFR 49 Section 180 Appendix B for

Meter Creep Test Methods.

3. All operating controls should be inspected and 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.

Figure 5. Use Tool Provided or Spring Seat (key 4) and Stem

Assembly (key 2) to Align Disc Retainer (key 8)

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 to 9.

Types C471, C477 and C486

CAM PROFILE UP

BACK VIEW WITHOUT

BOLT AND WASHER

T11555

T11545

T11546

T11547

*45°

CAM PROFILE POINTED LEFT

T11549 MULTI-PURPOSE PTFE LUBRICANT

T11550 MULTI-PURPOSE PTFE LUBRICANT

1H9416 MULTI-PURPOSE PTFE LUBRICANT

GLAND WING

* DRILLED PIN HOLE MUST BE 45° TO CL OF CAM

T11551

T11552

T20431

HOLE B

ORIENTATION NE TO SW

T11559 LEVER

GLAND WING

1B8480

1C2256

T20380

T11548

TORQUE: 90 TO 100 IN-LBS /

10 TO 11 N•m

T11548

SECTION A-A

(WITHOUT LEVER)

T11553

T20431

TORQUE: 90 TO 100 IN-LBS /

10 TO 11 N•m

SCREW-TYPE HARDWARE STUD-TYPE HARDWARE

Figure 6. Stub Shaft Orientation

Types C471, C477 and C486

To Replace Packing or Install Gland Hardware

WARNING

Downstream pressure must be released

before removing the screws holding the gland assembly to the internal valve

body. Failure to do so could result in personal injury.

1. The packing (keys 15F, G and H) can be replaced with product in the tank by closing the operating lever (key 18) and blowing down the downstream pressure in the system.

2. If using Screw-Type hardware, remove the three cap screws (key 17) holding the bonnet assembly to the body. If using the current Stud-Type hardware, remove the nuts (key 59) and washers (key 55) holding the bonnet assembly to the body.

Note

If working on a valve equipped with

a pneumatic actuator, please refer to

the corresponding actuator Instruction

Manual for proper removal procedures.

3. Rotate the entire bonnet assembly slightly to remove it from the body.

4. Unscrew the cap screw (key 15R) from the stub shaft (key 15J) and remove the operating lever by taking out the cotter pin (key 19).

5. Unscrew the retaining nut (key 15M) from the bonnet. Pushing on the stub shaft (key 15J) will expose the bonnet parts including the packing.

6. Besides the packing, the liner bushings (keys 15B and 15K) should be replaced. Lubricate the packings with Multi-purpose PTFE lubricant.

7. Reassemble in reverse order. Replace cap screw (key 15R) using 30 to 35 in-lbs / 3.4 to

4.0 N•m torque.

with the new parts installed. Then, correctly orient the cam to the stub shaft. Incorrect orientation will result in either:

a. Not being able to open the internal valve or b. Only being able to partially open the internal

valve which will cause the valve’s excess ow

feature to close prematurely

Refer to Figure 6. Looking at the end of the stub shaft (C) that the lever or actuator attaches to:

a. The cam prole on the opposite end of the shaft

should be up and the cam pointing to the left.

b. The hole (B) through the stub shaft that the lever/

actuator attaches to should be oriented in a NE to SW position with N being at the top.

c. The 2 gland wings should be at the top as shown

in Figure 6.

d. The lever should be oriented as shown and the

cotter pin run through hole (B).

10. Once proper orientation of the cam is conrmed: a. Reinstall the washers (key 55) and nuts (key 59)

and torque to 90 to 100 in-lbs / 10 to 11 N•m. Reinstall actuator or latch if applicable.

b. If reusing the cap screws, reinstall the actuator

or latch if applicable before installing the cap screws and washers. Torque to 90 to 100 in-lbs / 10 to 11 N•m.

c. If installing new studs, install the long studs

(key 57) in the top-most hole locations and the short stud (key 58) in the bottom-most location.

Secure the gland to the body with the rst set of

washers (key 12) and nuts. Reinstall actuator or latch if applicable or cover two long studs with protective cap (key 60) if available.

To Replace Seat Discs

1. Remove the valve from the tank.

2. Remove the cotter pin (key 14, Figure 7) and unscrew the hex nut (key 13).

3. Remove both disc holders (keys 6 and 12) from the stem (key 2).

8. Before replacing the gland assembly, replace the O-ring (key 16) with the proper material matching the main seals. The standard Types C471 and C477 material is Nitrile (NBR).

9. Orient Cam and stub shaft (See Figure 6)

Before reassembling the gland assembly into the body, make sure the operating lever can move freely

4. Unscrew the screws (keys 9 and 4 for 2 in. / DN 50, 6 for 3 in. / DN 80) holding the disc retainer (key 8) to replace the main seat disc.

5. Examine both seat discs (keys 7 and 11) and replace if necessary.

6. If the excess ow spring (key 3) is changed, replace the nameplate or stamp the body with the new type number.

Types C471, C477 and C486

7. Always replace the sealing washer (key 23), with a new sealing washer and follow recommended torque values for hex nut, (key 13).

8. a. Reassemble in reverse order. Tighten the screws

(key 9) using 20 in-lbs / 2.2 N•m torque to install the disc retainer (key 8) properly.

CAUTION

Failure to properly center the disc retainer to the disc holder may result in improper function of the valve.

Important

During replacement of the seat disc, use P/N GE45079X012 provided to center

the disc retainer to the disc holder

(See Figure 5). Line up holes and insert screws. Keep the alignment tool inserted until all of the screws are tightened to specication.

Alternately, the stem assembly (key 2) and spring seat (key 4) may be used as shown in Figure 5 to perform this alignment. After assembly, check to make sure there is no interference of the spring seat and disc

retainer when the valve is in the excess

ow position.

b. Apply Medium-Strength Threadlocker on the

stem threads before installing the hex nut (key 13).

Parts Ordering

Important

Use only genuine Fisher™ replacement

parts. Components that are not supplied by Emerson should not, under any circumstances, be used in any Fisher valve, because they will

void your warranty, might adversely

affect the performance of the valve and

could give rise to personal injury and property damage.

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

Types C471, C477 and C486 Internal Valves

Key Description Part Number

Repair Kit

2 in. NPT / DN 50 RC47016T012 3 in. NPT / DN 80 RC47024T012

1 Body

Type C471, Ductile Iron

2 in. / DN 50 T40195T0012 3 in. / DN 80 T80119T0012

Type C477, Ductile Iron

2 in. / DN 50 T40132T0012 3 in. / DN 80 T80089T0012

Type C486

3 in. / DN 80 Flange by FNPT ERAA00979A0

2 Stem Assembly

†2 in. / DN 50, Steel/Stainless steel GE41520T012 *3 in. / DN 80, Steel GE41522T012

2A Stem

2 in. / DN 50, Steel/Stainless steel GE35309T012

3 in. / DN 80, Steel GE35311T012 2B Follower Assembly, Steel/Stainless steel T11880000A2 2C Groove Pin, Steel/Stainless steel IJ1560T0012

3 Excess Flow Spring, Stainless steel

2 in. / DN 50

105 GPM / 397 L/min, Green GE42498X012 150 GPM / 567 L/min, Yellow T1153537022 250 GPM / 946 L/min, Pink T1200537022

3 in. / DN 80

160 GPM / 605 L/min, Blue GE42499X012 265 GPM / 1003 L/min, Black GE42500X012 375 GPM / 1419 L/min, Yellow GE42851X012 460 GPM / 1741 L/min, Red GE42501X012

4 Spring Seat, Stainless steel

2 in. / DN 50 GE35317T012

3 in. / DN 80 GE35318T012

5 Closing Spring, Stainless steel T1153737022

6 Disc Holder, Stainless steel

2 in. / DN 50 GE35315T012

3 in. / DN 80 GE35316T012

† Recommended spare part for 2 in. / DN 50 body size. * Recommended spare part for 3 in. / DN 80 body size. Kalrez® is a mark owned by E.I. du Pont de Nemours and Co.

Types C471, C477 and C486

Key Description Part Number Key Description Part Number

7 Main Disc

†2 in. / DN 50

Nitrile (NBR) T1154003202 PTFE T1214006242 Fluorocarbon (FKM) T12533T0012 Neoprene (CR) T12879T0012 Kalrez® T12877T0012 Ethylene Propylene (EPDM) T13474T0012

*3 in. / DN 80

Neoprene (CR) T12914T0012 Nitrile (NBR) T1177403032 PTFE T1217306242 Fluorocarbon (FKM) T12535T0012 Kalrez® T12921T0012 Ethylene Propylene (EPDM) T13476T0012

8 Disc Retainer

2 in. / DN 50, Steel/Stainless steel GE35313T012 3 in. / DN 80, Steel GE35314T012

9 Screw

2 in. / DN 50, Steel/Stainless steel (4 required) 13B3513X022 3 in. / DN 80, Steel (6 required) 13B3513X022

10 Bleed Disc seat, Steel/Stainless steel ERAA00325A0

†* Bleed Disc

Nitrile (NBR) ERAA00328A0 PTFE ERAA00328A1 Fluorocarbon (FKM) ERAA00328A2 Kalrez® ERAA00328A3 Neoprene (CR) ERAA00328A4 Ethylene Propylene (EPDM) ERAA02202A0

12 Bleed Disc Retainer, Stainless steel ERAA00324A0

13†* Hex Nut, Plated steel GE04678T012

14†* Cotter Pin, Stainless steel T1241338992

15 Gland Assembly, Nitrile (NBR)

2 in. / DN 50 T20377000B2 3 in. / DN 80 T20430000B2

15A Gland

Steel T2038022012 Stainless steel T2052033092

15B†* Liner Bushing, PTFE T1154506992

15C†* Washer

Steel T1154625072 Stainless steel T1220236152

15D Spring, Stainless steel T1154737022

15E†* Washer (2 required)

Steel T1154825072 Stainless steel T1220336152

15F†* Male Packing Adaptor, PTFE T1154901012

15G†* Packing, PTFE (3 required) T1155001012

15H†* Female Packing Adaptor, PTFE 1H941601012

15J Stub Shaft

2 in. / DN 50, Stainless steel T2037835072

3 in. / DN 80, Stainless steel T2043135072

15K†* Liner Bushing, PTFE T1155106992

15L†* Rod Wiper, Polyurethane (PU) T1155206992

15M Bonnet Nut, Steel T1155324102

15P Cam

Steel T1155521992

Stainless steel T1220535072

15R Cap Screw

Steel 1B848024052

Stainless steel T12206T0022

15S Washer

Steel 1C225628982

Stainless steel T1220736152

16†* O-ring

Nitrile (NBR) T1155706562

PTFE T1214206522

Fluorocarbon (FKM) T12577T0012

Kalrez

T1214206522 Neoprene (CR) T1214206522 Ethylene Propylene (EPDM) T13477T0012

17 Cap screw, Steel (3 required) T12499T0012

18 Operating Lever, Steel T1155919312

19†* Cotter pin, Carbon-plated Steel (not shown) 1H837128982

20 Nameplate (not shown) - - - - - - - - - - -

21 Drive Screw,

Stainless steel (2 required) (not shown) 1A368228982

22 Pipe plug, Zinc (not shown) T13718T0012

23†* Washer

Steel T1188228982 Stainless steel T11882T0012

30 Fusible Link (not shown) 1J157443992

33 Travel stop, Stainless steel T1240838072

35†* Bushing, PTFE T1221306992

36 Guide, Iron

Type C471

2 in. / DN 50 T12918T0012 3 in. / DN 80 T12511T0012

Type C477

2 in. / DN 50 T12918T0022 3 in. / DN 80 T12511T0012

55 Lock washer, Stainless steel (3 required) 1C2257K0012

57 Stud, Long (2 required) ERAA02623A0

58 Stud, Short ERAA02652A0

59 Nut 1A309338992

60 Thread Cap (2 required) (not shown) ERAA02691A0

† Recommended spare part for 2 in. / DN 50 body size. * Recommended spare part for 3 in. / DN 80 body size. Kalrez® is a mark owned by E.I. du Pont de Nemours and Co.

Types C471, C477 and C486

TORQUE: 50 TO 75 IN-LBS /

5.6 TO 8.5 N•m

15P

15R

15S

15J

TORQUE: 50 TO 75 IN-LBS /

5.6 TO 8.5 N•m

SECTION A - A

STEM

TORQUE:

90 TO 100 IN-LBS /

10 TO 11 N•m

15F

15G

15H

15E

15M

15L

SECTION B - B

GLAND

APPLY LUBRICANT L = MULTI-PURPOSE PTFE LUBRICANT

1. Lubricants must be selected such that they meet the temperature requirements.

(1)

15A

15B

15C

15D

15E

15K

Figure 7. Type C477 Assemblies

SECTION C

Types C471, C477 and C486

TORQUE: 50 TO 75 IN-LBS /

5.6 TO 8.5 N•m

15P

TORQUE:

90 TO 100 IN-LBS /

10 TO 11 N•m

SECTION A - A

STEM

TORQUE: 50 TO 75 IN-LBS /

5.6 TO 8.5 N•m

15R

15F

15G

15H

15E

15M

15L

15S

15J

15A

15B

15C

15D

15E

15K

SECTION B - B

SECTION C

GLAND

PARTS NOT SHOWN: 20 AND 21

APPLY LUBRICANT L = MULTI-PURPOSE PTFE LUBRICANT

1. Lubricants must be selected such that they meet the temperature requirements.

(1)

Figure 8. Type C471 Assemblies

Types C471, C477 and C486

15P

15F

15G

15H

15E

15M

15L

TORQUE: 90 to 100 IN-LBS / 10 to 11 N•m

55 57

15R

15S

15J

15A

15B

15C

15D

15E

15K

TORQUE:

50 TO 75 IN-LBS /

5.6 TO 8.5 N•m

TORQUE: 50 TO 75 IN-LBS /

5.6 TO 8.5 N•m

SEE DETAIL C

SECTION A - A

TORQUE: 90 TO 100 IN-LBS /

10 TO 11 N•m

SECTION B - B SECTION C

PARTS NOT SHOWN: 20 AND 21

APPLY LUBRICANT L = MULTI-PURPOSE PTFE LUBRICANT

1. Lubricants must be selected such that they meet the temperature requirements.

(1)

Figure 9. Type C486 Assemblies

Types C471, C477 and C486

Webadmin.Regulators@emerson.com

Fisher.com

Emerson Automation Solutions

Americas

McKinney, Texas 75070 USA T +1 800 558 5853

Asia Pacic

Singapore 128461, Singapore T +65 6777 8211

+1 972 548 3574

Europe

Bologna 40013, Italy T +39 051 419 0611

Middle East and Africa

Dubai, United Arab Emirates T +971 4 811 8100

Facebook.com/EmersonAutomationSolutions

LinkedIn.com/company/emerson-automation-solutions

Twitter.com/emr_automation

D450229T012 © 2002, 2019 Emerson Process Management Regulator Technologies, Inc. All rights reserved. 02/19. 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 Automation Solutions.

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 C471, C486, C477 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual