6
Installation, Operation and Maintenance Manual
D I S T R I B U T E D V A L V E S
Gaskets
Non-asbestos gaskets made in accordance with ASME B16.5,
Group 1a and 1b are standard for the WKM
MA
High Performance Butterfly Valve.
API 601 standard spiral wound gaskets may also be used.
DynaCentric
Flange Bolts
Recommended bolt and stud lengths for installation in ASME B16.5 flanges are
provided in Table 2.
Valve
Bolt
Bolt
Wafer Body
Lug Body
Size
Circle
Size
Qty.
Stud
Screw
Qty.
Screw
(in.)
Dia. (in.)
Length 'A' Length 'B'
Length 'B'
3" - 150
6
5/8-11 UNC
4
5.50
-
8
1.75
3" - 300
6 5/8
3/4-10 UNC
8
6.25
-
16
2.00
3" - 600
6 5/8
3/4-10 UNC
8
6.50
-
16
2.25
4" - 150
7 1/2
5/8-11 UNC
8
5.75
-
16
2.00
4" - 300
7 7/8
3/4-10 UNC
8
6.50
-
16
2.25
4" - 600
8 1/2
7/8-9 UNC
8
7.50
-
16
2.50
6" - 150
9 1/2
3/4-10 UNC
8
6.25
-
16
2.00
6" - 300
10 5/8
3/4-10 UNC
12
7.25
-
24
2.50
6" - 600
11 1/2
1-8 UNC
12
9.50
-
24
3.25
8" - 150
11 3/4
3/4-10 UNC
8
6.75
-
16
2.25
8" - 300
13
7/8-9 UNC
12
8.25
-
24
3.00
8" - 600
13 3/4
1 1/8-8 UN
12
11.00
-
24
4.00
10" - 150
14 1/4
7/8-9 UNC
12
7.25
-
24
2.50
10" - 300
15 1/4
1-8 UNC
16
9.50
-
32
3.25
10" - 600
17
1 1/4-8 UN 12 (8)
13.00
(4.00)
32
4.00
12" - 150
17
7/8-9 UNC
12
7.75
-
24
2.50
12" - 300
17 3/4
1 1/8-8 UN
16
10.50
-
32
3.75
12" - 600
19 1/4
1 1/4-8 UN 16 (8)
14.00
(4.00)
40
4.00
14" - 150
18 3/4
1-8 UNC
12
9.25
-
24
3.00
14" - 300
20 1/4
1 1/8-8 UN 16 (8)
11.75
(3.50)
40
3.50
16" - 150
21 1/4
1-8 UNC
16
9.75
-
32
3.00
16" - 300
22 1/2
1 1/4-8 UN 16 (8)
13.00
(3.75)
40
3.75
18" - 150
22 3/4
1 1/8-8 UN
16
10.50
32
3.25
18" - 300
24 3/4
1 1/4-8 UN 20 (8)
14.00
(4.00)
48
4.00
20" - 150
25
1 1/8-8 UN
20
12.00
-
40
3.75
24" - 150
29 1/2
1 1/4-8 UN
20
13.00
-
40
4.00
24" - 300
32
1 1/2-8 UN 20 (8)
16.50
(4.25)
40 (8)
5.00 (4.25)
30" - 150
36
1 1/4-8 UN 40 (16)
16.50
(4.25)
48 (8)
5.00 (4.25)
Wafer Body
Studs and
Hex Nuts
A
Figure 8
Lug Body
Capscrews
B
Figure 9
Table 2
WKM-MA-HPBV-IOM
