Description
| Part # | NB Cert. # | Body Material | Wt (lbs) | Size | Side Outlet |
|---|---|---|---|---|---|
| 851D | 51051 | Ductile Iron Casting 60-40-18 | 12.2 | ¾”,1”, or 1 ¼” FNPT inlet x 2” FNPT outlet | 2” MNPT |
#851D safety relief valve can be mounted on the following manifolds:
- #850 MW- ¾ ” (for ¾” MNPT)
- #850 MW- 1” (for 1” MNPT)
- #875 M- (for 1” MNPT)
- #876 M- (for 1” MNPT)
- #900 MW- 1 ¼” (for 1 ¼” MNPT)
- #901 M- (for 1 ¼” MNPT)
Design Features |
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850/851 Series Capacity Chart Slope = 6.17 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 |
| 150 | 1108.7 | 84.6 | 5078.2 | 64.9 | 3893.5 | 146.2 | 8773.7 | 104.4 | 6265.5 | 155.4 | 9321.1 |
| 175 | 1278.4 | 97.6 | 5855.4 | 74.8 | 4489.3 | 168.6 | 10116.3 | 120.4 | 7224.4 | 179.1 | 10747.5 |
| 200 | 1448.1 | 110.5 | 6632.5 | 84.8 | 5085.1 | 191.0 | 11459.0 | 136.4 | 8183.2 | 202.9 | 12174.0 |
| 225 | 1617.8 | 123.5 | 7409.7 | 94.7 | 5681.0 | 213.4 | 12801.7 | 152.4 | 9142.0 | 226.7 | 13600.4 |
| 250 | 1787.4 | 136.4 | 8186.8 | 104.6 | 6276.8 | 235.7 | 14144.3 | 168.3 | 10100.9 | 250.4 | 15026.9 |
| 275 | 1957.1 | 149.4 | 8963.9 | 114.5 | 6872.6 | 258.1 | 15487.0 | 184.3 | 11059.7 | 274.2 | 16453.3 |
| 300 | 2126.8 | 162.4 | 9741.1 | 124.5 | 7468.5 | 280.5 | 16829.6 | 200.3 | 12018.5 | 298.0 | 17879.7 |
| 325 | 2296.5 | 175.3 | 10518.2 | 134.4 | 8064.3 | 302.9 | 18172.3 | 216.3 | 12977.4 | 321.8 | 19306.2 |
| 350 | 2466.1 | 188.3 | 11295.3 | 144.3 | 8660.1 | 325.2 | 19515.0 | 232.3 | 13936.2 | 345.5 | 20732.6 |
| 375 | 2635.8 | 201.2 | 12072.5 | 154.3 | 9256.0 | 347.6 | 20857.6 | 248.3 | 14895.0 | 369.3 | 22159.0 |
| 400 | 2805.5 | 214.2 | 12849.6 | 164.2 | 9851.8 | 370.0 | 22200.3 | 264.2 | 15853.9 | 393.1 | 23585.5 |
