Check Valves
Forged Brass and Stainless Steel Bodies -- ¼" to ¾"
N.P.T.
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Accessories
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General
Description
These compact, in-line mounted, high-flow capacity
single check valves provide quiet operation, shut off instantaneously
against reverse flow and open at low cracking pressures in the forward
direction. The disc seats before reverse flow is established, avoiding
fluid shock on reversal of pressure differential. |
Specifications
Pipe Sizes
- ¼", ³/8", ½", ¾" N.P.T.
Valve Body -- Forged Brass, Stainless Steel (300 series).
Valve Seat -- (a) Buna "N" and Ethylene Propylene seat
at zero pressure in spring loaded valves. Drip tight on liquids; bubble
tight on air above 3 psi.
(b) Metal Seated -- Leakage on air up to 65 scfh.
Nominal Ambient Temperature:
125° F Maximum.
Important:
Valves may be mounted in any position. |
Pipe
Size
(ins.) |
Orifice
Size
(ins.) |
Cv
Flow
Factor |
Opening
Pressure
psi |
Maximum
Operating
Pressure
Differential
(psi)
Air-Inert Gas,
Water and
Light Oil |
Max.
Fluid
Temp.
(°F) |
Catalog
Number |
Const.
Ref.
No. |
| Forged
Brass Body, with Buna "N" Disc |
| ¼ |
9/32 |
0.70 |
1 |
150 |
200 |
V0121 |
1 |
| ³/8 |
³/8 |
1.2 |
1 |
150 |
200 |
V0122 |
2B |
| ½ |
7/16 |
2.5 |
1 |
150 |
200 |
V0123 |
2C |
| ¾ |
½ |
3.6 |
1 |
150 |
200 |
V0124 |
2D |
| Stainless
Steel Body, with Buna "N" Disc |
| ¼ |
9/32 |
0.70 |
1 |
150 |
200 |
V0125 |
3 |
| ³/8 |
³/8 |
1.2 |
1 |
150 |
200 |
V0126 |
2B |
| ½ |
7/16 |
2.5 |
1 |
150 |
200 |
V0127 |
2C |
Forged
Brass Body, with Ethylene Propylene Disc
for Low Pressure Steam |
| ¼ |
³/8 |
1.1 |
1 |
50 |
300 |
V01210 |
2A |
| ³/8 |
³/8 |
1.2 |
1 |
50 |
300 |
V01211 |
2B |
| ½ |
7/16 |
2.5 |
1 |
50 |
300 |
V01212 |
2C |
| ¾ |
½ |
3.6 |
1 |
50 |
300 |
V01213 |
2D |
Forged
Brass Body, with Metal Seating
for High Pressure Steam |
| ¼ |
³/8 |
0.70 |
8 |
200 |
388 |
V01214 |
2E |
| ³/8 |
³/8 |
0.70 |
8 |
200 |
388 |
V01215 |
2E |
| ½ |
½ |
3.4 |
4 |
200 |
388 |
V01216 |
2F |
| ¾ |
½ |
5.1 |
4 |
200 |
388 |
V01217 |
2F |
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