Ratings:
| Items |
 1/2" HL-41-T PISTON Check Valves- Bolted Bonnet- Full & Standard Port |
1/2" HL-41-T PISTON SL Check Valves- Bolted Bonnet- Full & Standard Port |
3/4" HL-41-SW PISTON Check Valves- Bolted Bonnet- Full & Standard Port |
3/4" HL-41-T PISTON Check Valves- Bolted Bonnet- Full & Standard Port |
3/4" HL-41-T PISTON SL Check Valves- Bolted Bonnet- Full & Standard Port |
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| Size | 1/2 | 1/2 | 3/4 | 3/4 | 3/4 | |||||
| Connection Type | Threaded | Threaded | Socket Weld | Threaded | Threaded | |||||
| Material | A 105, Trim F6/HF | |||||||||
| Seat Material | INTEGRAL HF | |||||||||
| Class | 800 | |||||||||
| Weight | 2.75 lb | 2.75 lb | 3.5 lb | 3.5 lb | 3.5 lb | |||||
| Operating Temperature | 100 ºF | |||||||||
| Operating Pressure | 1975 psi | |||||||||
| Cv Coefficient | 3.2 | 2.8 | 4.1 | 4.1 | 3.6 | |||||
| Body/Bonnet Bolt Torques | 20 ft/lb | |||||||||
| A | 3.54 in | 3.54 in | 4.33 in | 4.33 in | 4.33 in | |||||
| B | 2.36 in | 2.36 in | 3.07 in | 3.07 in | 3.07 in | |||||
| F | .51 in | .51 in | .69 in | .69 in | .69 in | |||||
| G | 1.50 in | 1.50 in | 1.89 in | 1.89 in | 1.89 in | |||||
| Inlet End Type | Threaded | Threaded | Socket Weld | Threaded | Threaded | |||||
| Inlet End Size | 1/2 | 1/2 | 3/4 | 3/4 | 3/4 | |||||
| Outlet End Type | Threaded | Threaded | Socket Weld | Threaded | Threaded | |||||
| Outlet End Size | 1/2 | 1/2 | 3/4 | 3/4 | 3/4 | |||||
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