球鐵逆止閥x法蘭
Features:
- UL Listed / FM Approval
- Stainless steel plate
- Flanged end drilling complies with ANSI B16.1 class 125
Application:
- Suitable use for fire-protection sprinkler system and water pipeline
- Maximum Operating Pressure : 250 psi
- Operating Temperature : 1°C - 63°C
- Medium : water
| Size | L | Remarks |
| 3" | 168.3 | 1/2" PT |
| 4" | 190.5 | 1/2" PT |
| 6" | 228.6 | 3/4" PT |
| 8" | 266.7 | 3/4" PT |
| Parts | Material | Specification |
| Body | Ductile Iron | A536 65-45-12 |
| Body Seal | EPDM | |
| Plate | Stainless Steel | ASTM A351.CF8 |
| Sping | Stainless Steel | AISI 316 |
| Hinge Pin | Stainless Steel | AISI 316 |
| Washer | Teflon | |
| Thrust Washer | Teflon | |
| Plug | Mild Steel | A105-80 |
| Square Plug | Mild Steel | A105-80 |
| Packing | Buna N |