暗桿式閘閥
Features:
- UL Listed / FM Approval
- Full bore and clear way
- Non-Rising Stem
- Complying with AWWA C515
- Wrench Operation
- A fully encapsulated EPDM ductile iron wedge is intended to achieve bubble-tight sealing
- Flanged end drilling complies with ASME/ANSI B16.1 class 125 and B16.42 class 150
- Epoxy Coated interior and exterior to AWWA C550
Application:
- Suitable use for fire-protection sprinkler system and water pipeline
- Maximum Operating Pressure : 300 psi
- Operating Temperature : 1°C - 63°C
- Medium : water
| Size | A | B | Remarks |
| 2.1/2" | 190.5 | 254 | |
| 3" | 203.2 | 280 | |
| 4" | 228.6 | 318 | |
| 6" | 266.7 | 432 | |
| 8" | 292.1 | 533 | |
| 10" | 330.2 | 622 | |
| 12" | 355.6 | 718 |
| Parts | Material | Specification |
| Body | Ductile Iron | A536 65-45-12 |
| Wedge | Ductile Iron coated with EPDM | |
| Wedge Nut | Cast Bronze | ASTM B62 |
| Bonnet | Ductile Iron | A536 65-45-12 |
| Stem Ring | Cast Bronze | ASTM B62 |
| Stem | Stainless Steel / Brass | AISI 304 / ASTM B16 |
| Box | Ductile Iron | A536 65-45-12 |
| Operating Nut | Cast Iron | ASTM A126-B |
| Washer | Stainless Steel | AISI 304 |
| Bonnet Bolt | Stainless Steel | AISI 304 |
| O Ring | EPDM | |
| Rubber Gasket | EPDM |