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Webstone 40402 1/2" Threaded Uni-Flange Ball Valve has a heavy duty forged brass construction, uni-body design, blow out proof stem, and adjustable packing gland. Inlets there are conical that minimize turbulence. Webstone 40402 uni-flange valve Fits almost all circulator pumps (depends on connection size). Ideal for primary/secondary in mod-con boiler systems. Guaranteed for Life.
Temperature-Pressure Table of 40402 Uni-Flange Ball Valve:
| Temp (°F) | PSI |
| 100 | 600 |
| 150 | 490 |
| 200 | 470 |
| 250 | 439 |
| 300 | 411 |
| 350 | 294 |