851A
851A
Specifications:
- Sizes –2", 2-1/2", 3", 4", 6", 8", 10", 12", 14", 16", 18", 20", 24"
- Ductile iron body and cover
- Epoxy coated interior & exterior for corrosion resistance
- Certified to ANSI/NSF 61
- Stainless steel bolts
- Buna encapsulated steel flexible disc with nylon fabric reinforcement
- Vertical or horizontal (flow upwards) installation
- 250 psig (1725 kPa/17 barg) maximum working pressure, 500 psig (3450 kPa/35 barg) test pressure
- Optional EPDM disc
|
Valve Size* |
A |
B |
C |
D |
|
2" |
8.00 |
2.00 |
3.38 |
8.38 |
|
2-1/2" |
8.50 |
2.50 |
3.38 |
8.38 |
|
3" |
9.50 |
3.00 |
3.88 |
9.00 |
|
4" |
11.50 |
4.00 |
4.63 |
9.63 |
|
5" |
13.75 |
5.00 |
5.13 |
10.25 |
|
6" |
15.00 |
6.00 |
5.88 |
11.00 |
|
8" |
19.50 |
8.00 |
7.63 |
13.75 |
|
10" |
24.50 |
10.00 |
9.88 |
16.00 |
|
12" |
27.50 |
12.00 |
11.38 |
18.50 |
|
14" |
31.00 |
14.00 |
13.38 |
20.50 |
|
16" |
32.00 |
16.00 |
15.38 |
23.50 |
|
18" |
36.00 |
18.00 |
17.13 |
25.25 |
|
20" |
40.00 |
20.00 |
19.13 |
29.25 |
|
24" |
18.00 |
24.00 |
22.75 |
32.75 |
**All dimensions are in inches. All weights are in pounds and are approximate.
▼ Material strength ASTM A536 65-45 minimum
|
Valve Size* |
Weight** |
|
2" |
22 |
|
2-1/2" |
30 |
|
3" |
40 |
|
4" |
71 |
|
5" |
120 |
|
6" |
125 |
|
8" |
222 |
|
10" |
372 |
|
12" |
514 |
|
14" |
696 |
|
16" |
987 |
|
18" |
1,340 |
|
20" |
1,670 |
|
24" |
2,147 |
|
Part Number |
Description |
Material |
Material Standard |
|
1 |
Body |
Ductile Iron |
ASTM A536 ▼ |
|
2 |
Bonnet |
Ductile Iron |
ASTM A536 ▼ |
|
3 |
Gasket |
Rubber |
ASTM D2000 BK 807 |
|
4 |
Disc |
Steel/Buna or EPDM |
ASTM A36/D2000 |
|
5 |
Bonnet Bolts |
Steel |
SAE Grade 5 |
|
6 |
Interior Lining |
Epoxy |
- |
|
7 |
Plug |
Ductile Iron |
ASTM A536 ▼ |