Steel valve
Structural pattern
Main parts material
Part name Valve body, bonnet disc Valve stem gasket packin
- Tel：0550-7516155
- Fax：0550-7513155
- Email：ghdq@ghdqkj.com
Description
Structural pattern
| Main parts material |
| Part name | Valve body, bonnet | disc | Valve stem | gasket | packing |
| J21B-25Z | Cast iron | Carbon steel | High quality carbon steel | Teflon | Teflon |
| J21F-25Z |
| · Performance specification |
| Nominal pressure (MPa) | Test pressure PS(mps) | Working pressure P(MPS) | Operating temperature (°C) | Applicable medium | |
| shell | seal | ||||
| 2.5 | 2.75 | 3.75 | 2.5 | Ammonia, ammonia liquid | |
| Main size |
| Nominal pressure passage DN((mm) | Size (mm) | ||||||||
| L | D | D1 | H | H1 | DO | ||||
| 10 | 175 | 14 | 20 | 170 | 190 | 80 | |||
| 15 | 180 | 20 | 26 | 170 | 150 | 80 | |||
| 20 | 190 | 23 | 30 | 175 | 155 | 100 | |||
| 25 | 213 | 28 | 34 | 190 | 165 | 120 | |||
| 32 | - | - | - | - | - | 140 | |||
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