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Henry Pratt Company

GROUNDHOG

The Henry Pratt Company designs, develops, manufactures and markets butterfly, rectangular, ball, nuclear, industrial, cone, sleeve, and energy dissipating valves as well as valve actuators and control systems. Our products are used in potable water, wastewater, power, industrial, and nuclear markets.

FLANGED 4"-20"
NOM.
VALVE
SIZE
A
B
C
D*
E
F
G
J
Q
R
4
5 1/2
3 1/2
9
5
3/4
8-5/8
7 1/2
4 1/8
3 7/8
7
6
6 1/2
5 1/8
11
5
1
8-3/4
9 1/2
4 1/8
3 7/8
7
8
7 3/4
6 1/2
13 1/2
6
1 1/8
8-3/4
11 3/4
4 1/8
3 7/8
7
10
9
9 7/8
16
8
1 3/16
12-7/8
14 1/4
4 3/8
4 1/4
7 5/8
12
10 1/2
11 3/8
19
8
1 1/4
12-7/8
17
4 3/8
4 1/4
7 5/8
14
11 7/8
12 5/8
21
8
1 3/8
12-1
18 3/4
5 3/16
5 3/8
9 3/8
16
13 1/2
14 1/2
23 1/2
8
1 7/16
16-1
21 1/4
5 5/16
5 3/8
9 3/8
18
14 3/8
15 3/8
25
8
1 9/16
16-1 1/8
22 3/4
6
6 3/4
10 5/8
20
16
17
27 1/2
8
1 11/16
20-1 1/8
25
6
6 3/4
10 5/8

Notes: All dimensions shown in inches
*D 1/16" for 10" valves
*D 1/8" for 12" and larger valves


FLANGED 24"-72"
NOM.
VALVE
SIZE
A
B
C
D*
E
F
G
J
Q
R
24
18 5/8
18 5/8
32
8
1 7/8
20-1 1/4
29 1/2
6
6 3/4
10 5/8
30
21 1/2
24 3/8
38 3/4
12
2 1/8
28-1 1/4
36
9 1/2
10 5/8
17
42
29 7/8
32 7/8
53
12
2 5/8
36-1 1/2
49 1/2
12 7/8
18 5/8
25 7/8
48
34 1/16
37 1/8
59 1/2
15
2 3/4
44-1 1/2
56
12 3/4
18 5/8
25 7/8

Notes:

  1. All dimensions shown in inches. "D" dimension 1/8" for 24" thru 48" valves. For bolts smaller than 1 3/4" diameter, bolt holes will be 1/8" larger than diameter of bolt. For bolts 1 3/4" and larger, bolt holes will be 1/4" larger than diameter of bolt.
  2. Dimensions and drilling of end flanges conform to the American cast iron flange standards, class 125 (B-16.1).
  3. Extension stem can be used with standard valve boxes or 5" soil pipe.
  4. Operator mounted in position as shown.
  5. 54"-72" details on request.


MECHANICAL JOINT 4"-20"
NOM.
VALVE
SIZE
A
B
C
D
E
F
G
J
Q
R
X
4
5 1/2
4 1/2
9
8 1/8
1
4-3/4
7 1/2
4 1/8
3 7/8
7
3 1/8
6
6 1/2
5 1/8
11
8 1/2
1 1/16
6-3/4
9 1/2
4 1/8
3 7/8
7
3 1/2
8
7 3/4
6 1/2
13 1/4
8 5/8
1 1/8
6-3/4
11 3/4
4 1/8
3 7/8
7
3 5/8
10
9
9 7/8
15 9/16
9 1/4
1 1/4
8-3/4
14
4 3/8
4 1/4
7 5/8
4 1/4
12
10 1/2
11 3/8
17 15/16
9 1/4
1 1/4
8-3/4
16 1/4
4 3/8
4 1/4
7 5/8
4 1/4
14
11 7/8
12 5/8
20 5/16
11 1/2
1 5/16
10-3/4
18 3/4
5 3/16
5 3/8
9 3/8
4 1/2
16
13 1/2
14 1/2
22 9/16
12
1 3/8
12-3/4
21
5 5/16
5 3/8
9 3/8
5
18
14 3/8
15 3/8
24 11/16
12 1/4
1 7/16
12-3/4
23 1/4
6
6 3/4
10 5/8
5 1/4
20
16
17
27 3/32
12 1/2
1 1/2
14-3/4
25 1/2
6
6 3/4
10 5/8
5 1/2

Notes:
  1. All dimensions shown in inches.
  2. Mechanical joint end is in compliance with ANSI 21.11.
  3. Note minimum mating pipe I.D. required.
Pipe Size Pipe O.D. Min. Mating Pipe I.D.
4"
4.80"
3.00"
6"
6.90"
5.59"
8"
9.05"
7.55"
10"
11.10"
9.83"
12"
13.20"
11.60"
14"
15.30"
12.81"
16"
17.40"
14.81"