FIGURE 101
SECTION
FIGURE 102
2"-12"
14"-20"
FIGURE 201
SECTION
FIGURE 202
Valve Dimensions
Size
A
B
2"
2-1/8
4-1/8
2.5"
2-9/16
4-7/8
3"
3-1/8
5-3/8
4"
4-1/8
6-7/8
5"
5-3/16
7-5/8
6"
6-1/8
8-3/4
8"
8-1/8
11
10"
10-1/8
13-3/8
12"
12-3/32
16-1/8
14"
13-1/4
17-9/16
16"
15-1/4
20-1/8
18"
17-1/4
21-1/2
20"
19-1/4
23-3/4
24" and larger — consult factory
C
5-1/2
6
6-1/4
7
7-1/2
8
9-1/2
10-3/4
12-1/4
12
12-61/64
14-1/2
15-7/8
D
1-5/8
1-3/4
1-3/4
2
2-1/8
2-1/8
2-1/2
2-1/2
3
3
4
4-1/4
5
E
1-11/16
2-3/16
2-7/8
3-7/8
5
6
8
10-1/16
11-15/16
13-1/8
15
16-7/8
18-3/4
F
4
4
4
4
4
4
6
6
6
6
6
8
8
G
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
2
2-1/4
2-1/4
3
3
H
9/16
9/16
9/16
5/8
5/8
5/8
3/4
7/8
1-1/8
1-3/8
1-5/8
1-7/8
2-1/8
Note: Valves cannot be used on a pipe or flange with an inside diameter less than the “E” dimension.
General Service Rubber Seated Butterfly Valve Specifications
General
Valves shall be of the wafer (or lug wafer) design for
installation between ANSI B16.1 125# flanges. All
valves shall be capable of bi-directional, bubble tight
service to the rated pressure. Valves shall be Pratt
Series 100/200 or approved equal.
Pressure rating
2" through 12" – 200 psi
14" and larger – 150 psi
Body
The valve body shall be cast iron ASTM A-126 Class
B. Laying length shall conform to MSS-SP67, latest
revision.
Disc
Valve disc shall be epoxy coated ductile iron
ASTM A-536 Grade 65-45-12 (or 316 stainless steel).
Shaft
Valve shaft shall be stainless steel type 416 or 17-4.
Seat
Seat shall be EPDM (or Buna-n or Viton). Seats shall
be located in the valve body and shall be field
replaceable.
Shaft Seal
Shaft seal shall be self adjusting V-type and shall be
suitable for pressure or vacuum service.
Testing
All valve shall be leak tested in the factory at their
rated pressure.
ETC [ ETC ]
