Emerson C471 Quick start guide

Brand: Emerson

Model: C471

Type: Quick start guide

The New Fisher

Internal Valve

An Industry Original Just Got Faster

Emerson Process Management

Regulator Technologies, Inc.

3200 Emerson Way

McKinney, Texas 75070 USA

www.fisherregulators.com

For Information Call: 1 800 558 5853

SUPERIOR SERVICE AND SUPPORT

Fisher

branded LP-gas products are available

through distributors worldwide each offering local

technical support and service. Factory training

on Fisher

LP-gas valves, internal valves and relief

products is available to all distributors.

Fisher LP-gas product speciﬁ cations are available

online at www.fisherregulators.com.

LP-Gas Equipment

Emerson Process Management

Regulator Technologies, Inc.

North America

McKinney, Texas 75070 USA

Tel: +1 800 558 5853

Outside U.S. +1 972 548 3574

LP-Gas Equipment

Emerson Process Management

Regulator Technologies, Inc.

Europe

Chartres 28008, France

Tel: +33 2 37 33 47 00

LP-Gas Equipment

Emerson Process Management

Regulator Technologies, Inc.

Asia-Paciﬁ c

Singapore 128461, Singapore

Tel: +65 6770 8337

LP-Gas Equipment

Emerson Process Management

Regulator Technologies, Inc.

Latin America

Tlalnepantla 54080, Mexico

Tel: 011 52 55 2699 0400

Printed in the U.S.A. Jet Bleed Internal, Fisher, Emerson Process Management, and the Emerson Process

Management design are marks of one of the Emerson Process Management group of companies. All other

marks are the property of their respective owners.

MODELS

2-inch NPT: Type C477-16

2-inch NPT Tee Body: Type C471-16

3-inch NPT: Type C477-24

3-inch NPT Tee Body: Type C471-24

3-inch Single Flange: Type C484-24

3-inch Double Flange: Type C483-24

OPTIONS

Seat Discs

Standard disc and O-ring material is Nitrile (NBR),

Neoprene (CR), Viton

, Teﬂ on

and Kalrez

available

for most types.

Excess Flow Springs

2-inch Valve: 100, 150, and 250 GPM

3-inch Flanged: 150, 250, and 400 GPM

3-inch NPT: 150, 250, 350, and 450 GPM

OPERATION

  

Valve is held closed permitting a

tight seal by both tank pressure

and the valve’s closing spring.

As the actuator moves the

operating lever to mid-stroke,

rapid equalization occurs

through the enlarged bleed ports.

Tank and downstream volume

pressures equalize quickly with

the Jet Bleed Internal™ Valve trim

and the main poppet opens.

FIELD PROVEN FEATURES

Fisher C Series Internal Valves have long been known

for reliability, the Fisher Jet Bleed Internal™ Valves

carry that tradition forward.

• Spring loaded TFE stub shaft packing 

• Removable cam and gland housings

• TFE wear pads at critical points 

• Rulon

bushings 

• Repairable seats







Newly redesigned stem provides a smooth

interface with the poppet delivering

exceptional wear performance and

extended valve life.

PERFORMANCE and VALUE

New Fisher

Jet Bleed Internal™

Valves target speed

of opening issues commonly encountered in the

operation of internal valves. Enlarged bleed ports

provide faster equalization of tank pressure and

downstream line pressure, giving a faster response

time for quick valve opening.

• Allows operators to be more efficient

• Reduces potential for damage caused by

running pumps dry

• Improved service features for

easy maintenance

INCREASED BLEED AREA

Downstream Pipe Pressure

Open

Jet Bleed Internal™ Technology

Others

™

Time to Equalize

Opens in a fraction of the time!

SERVICEABILITY

New features have been added to the Jet Bleed

Internal™ Valve trim:

• New Jet Bleed Internal™ Valve trim sets

are interchangeable with current

Fisher Valve products*

• Simple Design – No ﬁ lters to change or

external equipment to maintain

• All stainless steel trim construction

• Stainless steel hex head bolts

• Wrench/Vise ﬂ ats added to the main poppet

*Trim sets are not interchangeable with Type C404 valves.

DURABILITY

Emerson C471 Quick start guide

Emerson C471 Quick start guide

Emerson C471 Quick start guide

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