Data Sheet

www.Fisher.com

Pressure/Temperature Ratings

for Fisherr Cast Iron Valve Bodies

The pressure/temperature ratings for flanged cast iron

valves given in the following figure are in accordance

with ASME B16.1. Fisher valves with Class B ratings are

listed in table 1. Cast iron valves with screwed

connections have CL250 ratings in accordance with

ASME B16.4.

Information in the following figure has been extracted

from Cast Iron Pipe Flanges and Flanged Fittings (ASME

B16.1) with the permission of the publisher.

The American Society of Mechanical Engineers, United

Engineering Center, Three Park Avenue, New York,

New York 10016.

Table 1. Class B Ratings

Valve Body

Design

Valve Size, NPS CL125B CL250B

(1)

1, 1-1/2, 2, 2-1/2, 3, 4, 6, 8 X X

YD, YS 1, 1-1/2, 2, 2-1/2, 3, 4, 6 X X

1. Refers to all valve designs beginning with “E” that are available in cast iron, for

example: ED, EDR, etc.

Pressure/Temperature Ratings

A2371-2

CL250 RATINGS

CL125 RATINGS

CLASS B (NPS 1-12)

CLASS A (NPS 1-12)

CLASS B (NPS 14-24)

CLASS B (NPS 1-12)

CLASS A (NPS 1-12)

CLASS B (NPS 14-24)

SATURATED

STEAM

TEMPERATURE, _C

TEMPERATURE, _F

Cast Iron P/T Ratings

D100072X012

Product Bulletin

59.1:015

December 2012

PAGE 1
Product Bulletin Cast Iron P/T Ratings 59.1:015 December 2012 D100072X012 Pressure/Temperature Ratings for Fisherr Cast Iron Valve Bodies The pressure/temperature ratings for flanged cast iron valves given in the following figure are in accordance with ASME B16.1. Fisher valves with Class B ratings are listed in table 1. Cast iron valves with screwed connections have CL250 ratings in accordance with ASME B16.4.
PAGE 2
Product Bulletin 59.1:015 December 2012 Cast Iron P/T Ratings D100072X012 Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Fisher is a mark owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co.