灰口鑄鐵橫式逆止閥
Features:
- UL Listed / FM Approval
- Horizontal Swing
- Renewable seat and disc
- Full Waterway
- Composition to metal seat Type II
- Complying with MSS SP-71
- Flanged end drilling complies with ASME/ANSI B16.1 class 125 and B16.42 class 150
Application:
- Suitable use for fire-protection sprinkler system
- Suitable for mounting in vertical and horizontal position
- Maximum Operating Pressure : 200 psi with water, oil, and gas / 125 psi with 232°C steam
- Operating Temperature : -20°C - 150°C
- Medium : water, oil, gas, and steam
| Size | L | H | Remarks |
| 3" | 241.3 | 194 | |
| 4" | 292.1 | 214 | |
| 6" | 355.8 | 258 | |
| 8" | 495.3 | 312 | |
| 10" | 622.3 | 352 | |
| 12" | 698.5 | 389 |
| Parts | Material | Specification |
| Body | Cast Iron | ASTM A126-B |
| Disc | Ductile Iron | A536 65-45-12 |
| Body Seat Ring | Cast Bronze | ASTM B62 |
| Disc Ring (Rubber) | EPDM | |
| Disc Ring (Bronze) | Cast Bronze | ASTM B62 |
| Disc Washer | Ductile Iron / Stainless Steel | A536 65-45-12 / AISI 304 |
| Hanger Pin | Stainless Steel | AISI 410 |
| Hanger Plug | Brass / Stainless Steel | ASTM B16 / AISI 304 |
| Hanger | Ductile Iron | A536 65-45-12 |
| Cover | Cast Iron | ASTM A126-B |
| Eye Bolt | Steel | ASTM A307-A |
| Disc Nut | Stainless Steel | AISI 304 |
| Gasket | Non-Asbestos | |
| Hex. Head Bolt | Steel | ASTM A307-A |
| Hex. Nut | Steel | ASTM A563-A |