503 Series 2-PC Spring Vertical Check Valve
| Nominal pressure | DN8~DN65 PN63 |
| DN80~DN100 PN55 | |
| Medium temperature | -20℃ — +180℃ |
| Connection type | Threaded connectio (BSP、BSPT、NPT) |
| Body material | CF8/CF8M |
| Seal material | Metal-to-metal seal |
| Minimum open pressure | 24-50mbar |
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