509 Series Y-Spring Check Valve
Function Principle
Medium enters valve body through inlet opening, pushes the valve stem and valve core upward, and thereby opens the valve. When the medium starts to flow back from the outlet, the spring force and pressure applied by the medium itself push the valve stem and
| Nominal pressure | PN16 |
| Size | DN8-DN50 |
| Medium temperature | -10℃ — +180℃ |
| Connection type | Threaded, Welded, Tri-clamp, Flanged |
| Minimum open pressure | 30-40mbar |
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