Fire Special Rising Stem Resilient Seat Seal Gate Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Fire special rising stem resilient seat seal gate valves(pic1)
The introduction of fire special rising stem resilient seat seal gate valve
Fire special Rising Stem resilient seat seal gate valve has general resilient seat seal gate valve's advantages, it can show the valve's opening directly, so you can determine the valve opening at a long distance, and take corresponding measures convenient. It can open or close reliably and quickly, so is widely used in urban construction, mining and other enterprises of the fire protection system.
The technical parameters
Nominal pressure：1.0Mpa、2.5Mpa
Nominal diameter：50-400mm
Test critaria：GB13927 AP1598
Flange critaria：GB/T 17241.6 GB9113
Working temperature：0-80℃
Dimensions & constructral diagram
Fire special rising stem resilient seat seal gate valve constructral diagram(pic1)
Fire special rising stem resilient seat seal gate valve constructral diagram(pic2)
Fire special rising stem resilient seat seal gate valve constructral diagram(pic3)
The materials of main parts
| No. | Name | Material |
| 1 | Handwheel | mallable cast iron |
| 2 | Stem nut | copper alloy |
| 3 | Support | grey cast iron, ductile cast iron, cast steel |
| 4 | Gland | ductile cast iron, cast steel |
| 5 | Seal ring | buna-N rubber or EPDM |
| 6 | Stem | stainless steel |
| 7 | Gasket | buna-N rubber or EPDM |
| 8 | Disc | ductile cast iron packed with Buna-N rubber or EPDM |
| 9 | Body | grey cast iron, ductile cast iron, cast steel |
The main connection 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 |
| Hmin（full open） | 322 | 332 | 350 | 420 | 581 | 581 | 736 | 882 | 1009 | 1300 | 1380 |
| Hmax(full open) | 374 | 398 | 429 | 524 | 721 | 736 | 942 | 1013 | 1117 | 1655 | 1805 |
