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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
E
(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
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Sommario

Pagina 1 - Pressure/Temperature Ratings

www.Fisher.comPressure/Temperature Ratingsfor Fisherr Cast Iron Valve BodiesThe pressure/temperature ratings for flanged cast ironvalves given in the

Pagina 2 - Product Bulletin

Cast Iron P/T RatingsD100072X012Product Bulletin59.1:015December 20122Emerson Process ManagementMarshalltown, Iowa 50158 USASorocaba, 18087 BrazilChat

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