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Rising Stem Resilient Seated Gate Valve (RRHX)
Rising stem resilient seated gate valve (RRHX) product introduction
Rising stem resilient seated gate valve special for fire protection has resilient seated gate valve’s advantages. And it shows the valve’s opening directly so it’s possible to see the valve’s opening in a long distance and take effective actions. It opens or closes reliably and quickly so it is often used in fire protection system.
Rising stem resilient seated gate valve (RRHX) main technical parameters
Nominal pressure: 1.0-2.5MPa
Working temp.:0-120℃
Flanged end:GB/T17241.6 GB9113,ASME 16.5 etc.
Nominal diameter: 50-400mmService: water, oils, gas etc.
Inspection and test: GB 13927 API 598
Rising stem resilient seated gate valve (RRHX) main material
| Serial no. | Part | Material |
| 1 | Hand wheel | Ductile iron |
| 2 | Stem nut | Copper alloy |
| 3 | Support | Grey cast iron, ductile cast iron, cast steel |
| 4 | Gland | ductile cast iron, cast steel |
| 5 | Gasket | Buna-N rubber or DM |
| 6 | Stem | Stainless steel |
| 7 | Gasket | Buna-N rubber or PM |
| 8 | Disc | Ductile cast iron packed with rubber or PM outside |
| 9 | Body | Grey cast iron, ductile cast iron, cast steel |
Rising stem resilient seated gate valve (RRHX) main dimensions
| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
| L | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | 381 | 406 |
| H(min)(full close) | 322 | 332 | 350 | 420 | 581 | 581 | 736 | 882 | 1009 | 1300 | 1380 |
| H(max)(full open) | 374 | 398 | 429 | 524 | 721 | 736 | 942 | 1013 | 1117 | 1655 | 1805 |