
Design RSS
14
Key 6* Bellows, New Design
(1)
VALVE
PORT
MATERIAL
VALVE
SIZE,
PORT
DIAMETER
PTFE
N10276 Nickel Alloy
SIZE,
INCHES
DIAMETER
Standard
Heavy Duty
N10276 Nickel Alloy
1/2 and 3/4
All
(2)
20B2491X052
- - -
21B2445X022
1
All
(2)
20B2494X052
23B9210X012
20B5526X022
1-1/2 and 2
All
20B2493X052
23B9211X012
21B2447X022
3 and 4
All
20B2492X032
23B9212X012
21B2448X012
1. See
Parts Ordering section.
2. For original design 3/16 (5 mm) port trim, see the following table.
Key 6* Bellows for Original Design
(1)
3/16 (5 mm) Port Trim
VALVE
MATERIAL
VALVE
SIZE,
PTFE
N10276 Nickel Alloy
SIZE,
INCHES
Standard
Heavy Duty
N10276 Nickel Alloy
1/2, 3/4
20B5987X032
- - -
21B3752X012
1
20B5988X032
21B4701X032
21B2446X012
1. See
Parts Ordering section.
Key 7 Cap Screw
(1)
Key 7 Stud
(1)
Key 8 Hex Nut
(1)
MATERIAL
VALVE SIZE,
PART NUMBER
MATERIAL
VALVE SIZE,
INCHES
Cap Screw (Key 7)
Hex Nut (Key 8)
Stainless steel
1/2, 3/4
1, 1-1/2, 2, 3
1A3445X0012
1A3615X0012
1A375335252
1A341235252
SB-574-C276
1/2, 3/4
1, 1-1/2, 2, 3
1A344540152
1A3615X0062
1A3753X0062
1A341240152
MATERIAL
VALVE SIZE,
INCHES
Stud (Key 7)
Hex Nut (Key 8)
Stainless steel
4
1A3788X0032
1A341235252
SB-574-C276
4
1A3788X0032
1A341240152
1. For valve body sizes 1/2 through 2-inch, 4 cap screws and nuts are required, for 3-inch valve bodies, 8 cap screws and nuts are required, and for 4-inch valve bodies, 8 studs and
nuts are required.
*Recommended spare parts
For information, contact Fisher Controls:
Marshalltown, Iowa 50158 USA
Cernay 68700 France
Sao Paulo 05424 Brazil
Singapore 128461
Printed in U.S.A.
E
Fisher Controls International, Inc. 1986, 1999; All Rights Reserved
Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc.
All other marks are the property of their respective owners.