Emerson A41 Datasheet download pdf

www.Fisher.com

Fisherr A41 High-Performance Butterfly Valve

The Fisher A41 valve features an eccentrically

mounted disc with a soft or stainless steel seal ring.

Soft seals provide excellent sealing capabilities in both

flow directions. The metal seal ring provides excellent

shutoff against pressure applied in the recommended

flow direction for both liquid and gas applications. The

NOVEX and Phoenix III metal seals are available for

demanding applications requiring excellent shutoff

capabilities. The double D shaft combines with a

variety of power and manual actuators to form a

reliable, high-performance valve suitable for many

power applications requiring tight shutoff.

Unless otherwise noted, all NACE references are to

NACE MR0175-2002.

Features

 Exceptional Shutoff–Bidirectionalsoftsealring(see

figure 2) with pressure-assisting action results in

exceptional shutoff rates as shown in the

specifications.

 Shaft Retention–Redundant shaft retention

provides added protection. The packing follower

and shaft step interact to hold the shaft securely in

the valve body (see figure 1).

 Easy Installation–The valve body self-centers on the

line flange bolts as a fast, accurate means of

centering the valve in the pipeline.

 Sour Service Capability–Materials are available for

applications handling sour fluids and gases. These

materials comply with the requirements of NACE

MR0175-2002.

W9269

Fisher A41 Valve

 Improved Environmental Capabilities–The optional

ENVIRO-SEALt packing system is designed with

improved sealing, guiding, and loading force

transmission. The ENVIRO-SEAL packing s ystem can

control emissions to below the EPA (Environmental

Protection Agency) limit of 100 ppm (parts per

million) for valves.

 Low Cost Maintenance–Individual disc/shaft

components can be replaced after disassembly due

to sleeve and taper pin connections (see figure 1).

A41 Valve

D500212X012

Product Bulletin

21.1:A41

January 2013

1 2 3 4 5 6 ... 11 12

Summary of Contents

Page 1 - Features

www.Fisher.comFisherr A41 High-Performance Butterfly ValveThe Fisher A41 valve features an eccentricallymounted disc with a soft or stainless steel se

Page 2

A41 ValveD500212X012Product Bulletin21.1:A41January 201310Figure 6. Typical Valve Dimensions (also see tables 4 and 5)W14B0818-D14B0829-D14B0830-DB243

Page 3

A41 ValveD500212X012Product Bulletin21.1:A41January 201311Table4.CL150ValveDimensionsValveSize,NPSA EGKM(2)RS(1)FlatSizeFlatLengthT U WYWaferStyleSing

Page 4

A41 ValveD500212X012Product Bulletin21.1:A41January 201312Emerson Process ManagementMarshalltown, Iowa 50158 USASorocaba, 18087 BrazilChatham, Kent ME

Page 5

A41 ValveD500212X012Product Bulletin21.1:A41January 20132SpecificationsValve Sizes and End Connection StylesNPSJ 2, J 3, J 4, J 6, J 8, J 10, and J 12

Page 6

A41 ValveD500212X012Product Bulletin21.1:A41January 20133Specifications (continued)Mating Flange CapabilitiesAll sizes compatible with appropriate CL1

Page 7

A41 ValveD500212X012Product Bulletin21.1:A41January 20134Figure 1. Typical Valve ConstructionRETAINER RINGSCREWSW6236SINGLE-FLANGED STYLERETAINER RING

Page 8 - Installation

A41 ValveD500212X012Product Bulletin21.1:A41January 20135Figure 2. Available S eal ConfigurationsNOVEX METAL SEALPHOENIX III METAL SEALPTFE, REINFORCE

Page 9

A41 ValveD500212X012Product Bulletin21.1:A41January 20136Table 2. Flow Coefficients(1)VALVE SIZE,NPSCvFORWARD FLOW WITH DISC WIDE OPEN (90 DEGREES ROT

Page 10 - Product Bulletin

A41 ValveD500212X012Product Bulletin21.1:A41January 20137Figure 4. Flow DirectionNote:1. By Emerson Process Management definition: Forward flow is int

Page 11

A41 ValveD500212X012Product Bulletin21.1:A41January 20138InstallationIt is recommended that the valve drive shaft bemounted in a horizontal position.

Page 12

A41 ValveD500212X012Product Bulletin21.1:A41January 20139Figure 5. Packing ArrangementsNote:Includes zinc washers for graphite ribbon packing only.1PA

Comments to this Manuals

No comments

Emerson A41 Datasheet

Browse online or download Datasheet for Unknown Emerson A41. Emerson A41 Data Sheet User Manual

Summary of Contents

Comments to this Manuals

Related products and manuals for Unknown Emerson A41