Check & Vent Valves | Boiler Supplies Check Valves by Check All Valves Check-All Style UN-3 - Universal Low Pressure
The Check-All Universal Low Pressure check valve is a one piece body machined from bar stock and is designed for minimum pressure drop. The valve is light, compact and provides maintenance free dependable service.
These (to 3,000 psig) pressure check valves have a single piece body construction machined from bar stock. These economical check valves are designed for maximum flow with minimum pressure drop.
Standard Materials are:
1. 316 Stainless Steel
2. Carbon Steel
3. Brass
*May be larger and/or round.
| Part # |
Nominal Pipe Size |
Style # | A |
Hex *Size B |
C |
Orifice Diameter |
|
|---|---|---|---|---|---|---|---|
| UN3-375 | 3/8 | U3C | 2-5/32 | 13/16 | 3/8 NPT | 0.348 | Add to RFQ |
| UN3-050 | 1/2 | U3D | 2-23/32 | 1-1/8 | 1/2 NPT | 0.464 | Add to RFQ |
| UN3-075 | 3/4 | U3F | 2-15/16 | 1-1/4 | 3/4 NPT | 0.593 | Add to RFQ |
| UN3-100 | 1 | U3H | 3-41/64 | 1-5/8 | 1 NPT | 0.890 | Add to RFQ |
| UN3-125 | 1-1/4 | U3I | 3-29/32 | 2-1/4 | 1-1/4 NPT | 1.135 | Add to RFQ |
| UN3-150 | 1-1/2 | U3J | 4-23/64 | 2-1/2 | 1-1/2 NPT | 1.385 | Add to RFQ |
| UN3-200 | 2 | U3K | 5-27/32 | 3 | 2 NPT | 1.555 | Add to RFQ |
| UN3-250 | 2-1/2 | U3L | 5-1/2 | 3-3/4 | 2-1/2 NPT | 1.555 | Add to RFQ |
| UN3-300 | 3 | U3M | 6-1/4 | 4-1/2 | 3 NPT | 2.025 | Add to RFQ |
| UN3-400 | 4 | U3N | 7-1/8 | 5-1/2 | 4 NPT | 2.560 | Add to RFQ |
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