Replacement Insert for Two-Piece Valve, Quick Release 801DHC-QR.
The Quick Release design allows The housing to remain in The system while only The insert is replaced.
The ASME certified slope of 0.781 yields, for example, a capacity of 17.3 lbs. per minute of air @ 250psi set pressure.
All Cyrus Shank relief valves are manufactured in accordance with ASME Boiler and Pressure Vessel Code Section VIII Division I and stamped with The ASME Certification Mark with UV Designator.
All Cyrus Shank relief valve capacities are certified by The National Board of Boiler and Pressure Vessel Inspectors and stamped with The NB Certification Mark.
801DHC Series Capacity ChartSlope = 0.781 SCFM/PSIA |
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| Set Pressure (PSIG) | Air SCFM | Air lb/min | Air lb/hr | NH3 lb/min | NH3 lb/hr | R-22 lb/min | R-22 lb/hr | R-290 lb/min | R-290 lb/hr | R-404A lb/min | R-404A lb/hr |
| 75 | 75.9 | 5.8 | 347.7 | 4.4 | 266.6 | 10.0 | 600.7 | 7.1 | 429.0 | 10.6 | 638.2 |
| 100 | 97.4 | 7.4 | 446.1 | 5.7 | 342.0 | 12.8 | 770.7 | 9.2 | 550.4 | 13.6 | 818.8 |
| 125 | 118.9 | 9.1 | 544.4 | 7.0 | 417.4 | 15.7 | 940.6 | 11.2 | 671.7 | 16.7 | 999.3 |
| 150 | 140.3 | 10.7 | 642.8 | 8.2 | 492.8 | 18.5 | 1110.6 | 13.2 | 793.1 | 19.7 | 1179.9 |
| 175 | 161.8 | 12.4 | 741.2 | 9.5 | 568.3 | 21.3 | 1280.5 | 15.2 | 914.5 | 22.7 | 1360.4 |
| 200 | 183.3 | 14.0 | 839.5 | 10.7 | 643.7 | 24.2 | 1450.5 | 17.3 | 1035.8 | 25.7 | 1541.0 |
| 225 | 204.8 | 15.6 | 937.9 | 12.0 | 719.1 | 27.0 | 1620.4 | 19.3 | 1157.2 | 28.7 | 1721.5 |
| 250 | 226.3 | 17.3 | 1036.3 | 13.2 | 794.5 | 29.8 | 1790.4 | 21.3 | 1278.6 | 31.7 | 1902.1 |
| 275 | 247.7 | 18.9 | 1134.7 | 14.5 | 869.9 | 32.7 | 1960.3 | 23.3 | 1399.9 | 34.7 | 2082.7 |
| 300 | 269.2 | 20.6 | 1233.0 | 15.8 | 945.4 | 35.5 | 2130.3 | 25.4 | 1521.3 | 37.7 | 2263.2 |
| 325 | 290.7 | 22.2 | 1331.4 | 17.0 | 1020.8 | 38.3 | 2300.3 | 27.4 | 1642.7 | 40.7 | 2443.8 |
| 350 | 312.2 | 23.8 | 1429.8 | 18.3 | 1096.2 | 41.2 | 2470.2 | 29.4 | 1764.0 | 43.7 | 2624.3 |
| 375 | 333.6 | 25.5 | 1528.1 | 19.5 | 1171.6 | 44.0 | 2640.2 | 31.4 | 1885.4 | 46.7 | 2804.9 |
| 400 | 355.1 | 27.1 | 1626.5 | 20.8 | 1247.0 | 46.8 | 2810.1 | 33.4 | 2006.8 | 49.8 | 2985.5 |
