Emerson C471 Instruction Manual download pdf

WARNING

P1197

D450229T012

Instruction Manual

MCK-2287

September 2014

Types C471, C477 and C486

www.fisherregulators.com

Types C471, C477 and C486 Internal Valves

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.

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 NH

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.

Figure 1. C471, C477 and C486 Series Internal Valves

Specications

The Specications section on the following page shows

specications for Types C471, C477 and C486 internal valves.

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.

TYPE C471

TYPE C477

TYPE C486

1 2 3 4 5 6 ... 11 12

Types C471, C477 and C486 1

Summary of Contents

Page 1 - Types C471, C477 and C486

!WARNINGP1197D450229T012Instruction ManualMCK-2287September 2014Types C471, C477 and C486www.fisherregulators.comTypes C471, C477 and C486 Internal Va

Page 2

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

Page 3

Figure 6. Type C471 AssembliesPARTS NOT SHOWN: 20 AND 21APPLY LUBRICANT(1)L = MULTI-PURPOSE PTFE LUBRICANT1. Lubricants must be selected such that th

Page 4

Figure 7. Type C486 AssembliesAPPLY LUBRICANT(1)L = MULTI-PURPOSE PTFE LUBRICANT1. Lubricants must be selected such that they meet the temperature re

Page 5

NoteThe 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

Page 6

CAUTIONExcess 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 ins

Page 7

valves. It may also be possible to use cable controls from other manufacturers or to fabricate a linkage mechanism.Any control system requires thermal

Page 8

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

Page 9

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 Method

Page 10

T11546T11547T11549 MULTI-PURPOSE PTFE LUBRICANTT11550 MULTI-PURPOSE PTFE LUBRICANTT11551T11552T20431BT20431T11553T11548T11548SECTION A-A(WITHOUT LEVER

Page 11

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. Be

Page 12

Figure 5. Type C477 AssembliesAPPLY LUBRICANT(1)L = MULTI-PURPOSE PTFE LUBRICANT 1. Lubricants must be selected such that they meet the temperature re

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Emerson C471 Instruction Manual

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