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Summary
Signal gate valves and signal butterfly valves are used in automatic spraying water pipeline in fire protection system to monitor the water supply pipeline and indicate the valve's opening at a long distance. Rising stem gate valves and opening indicator gate valves are often used in fire protection system, and if the installation position is high to the ground, rising stem gate valves is used and can show the valve's opening clearly while if the installation position is low, opening indicator gate valves is used.
Technical Parameters
Nominal pressure: 1.0-2.5Mpa
Working temp.:0-120°C
Flanged end: GB/T17241.6 GB9113,ASME 16.5 etc.
Nominal diameter: 50-400mm
Service: water, oils, gas etc.
Inspection and test: GB 13927 API 598
Supplier: Saitai Valve, China
Manufacturer: Shop in Shanghai Qingpu Industrial Park
Materials
| No. | part | material |
| 1 | Transmission cap | ductile cast iron, cast steel |
| 2 | Hand wheel | Ductile iron |
| 3 | Dust proof gasket | Plastic |
| 4 | Gasket | Buna-N rubber or EPDM |
| 5 | Thrust bearing | Gun metals |
| 6 | Cover | Grey cast iron, ductile cast iron, cast steel |
| 7 | Bolt | Carbon steel or stainless steel |
| 8 | Body | Grey cast iron, ductile cast iron, cast steel |
| 9 | Copper nut | Gun metals |
| 10 | Stem | Stainless steel |
| 11 | Disc | Ductile cast iron packed with rubber or EPDM outside |
Dimensions
| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
| L | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | 381 | 406 | 432 | 457 | 508 |
| H(full open) | 732 | 773 | 820 | 870 | 915 | 1003 | 1110 | 1263 | 1360 | 1550 | 1610 | 1900 | 1938 | 2120 |
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Catalog:Resilient Seated Gate Valves