Production enforce standard
| Product specification |
Design spec | Face to Face | Butt-welding ends | Test & check | Pressure -temp. | Marking |
| JB/T 7746 | JB/T 7746 | ANSI B16.25 | JB/T 9092 | GB/T 9131 | GB/T 12220 |
Chief p0roperty and specifiecation
| Product type | Nominal pressure PN(MPa) |
Test pressure (MPa) | Working pressure (MPa) |
Working temperature ℃ |
Appicable medium | |
| Shell test | seal test | |||||
| Z960Y-250 | 25 | 37.5 | 27.5 | - | ≤425 | Water, Steam |
| Z960Y-320 | 32 | 48.0 | 36.0 | - | ≤425 | |
| Z960Y-P54100 | - | 30.0 | 22.0 | P5410 | ≤540 | Steam |
| Z960Y-P54170 | - | 48.0 | 36.0 | P5417 | ≤540 | |
Material for main parts
| Part name | Material designation | ||
| Body | WCB | WC6 | WC9 |
| Disc | WCB | WC6 | WC9 |
| Bonnet | 25 | 12Cr1Mo1VA | |
| Stem | 1Cr17Ni2 | 20Cr1Mo1VA | |
| Seat | 25 | 12Cr1Mo1VA | |
| Sealing ring | S sof steel (flexible graphite) |
S sof steel | F sof steel |
| Packing | Fexible graphite | ||
| Yoke | WCB | WCB / WC6 | |
| Stem nut | Aluminum bronze. (ZCuZn25A16Fe3Mn3) | ||
| Four piece ring | 1Cr13 | 20Cr1Mo1VA | |