Fire Special Signal Relisient 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 signal relisient seat seal gate valves
The features of signal gate valve
Fire special signal relisient seat seal gate valve is 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. It is often used in fire protection system, and if the installation position is high to the ground, rising stem gate valve is used and can show the valve's opening clearly while if the installation position is low, opening indicator gate valve is used. The main technical paremeters: 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℃; Applicable medium: water, oil,gas, etc.
Dimensions & constructral diagram
Fire special signal relisient seat seal gate valve constructral diagram(pic1)
Fire special signal relisient seat seal gate valve constructral diagram(pic2)
Fire special signal relisient seat seal gate valve constructral diagram(pic3)
The materials of main parts
| No. | Name | Material |
| 1 | Transmission cap | ductile cast iron, cast steel |
| 2 | Handwheel | malleable cast iron |
| 3 | Dust cover | plastic |
| 4 | Seal ring | buna-N rubber or EPDM |
| 5 | Thrust bearing | tin bronze |
| 6 | Bonnet | 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 | Steel nut | tin bronze |
| 10 | Stem | stainless steel |
| 11 | Disc | ductile cast iron packed with Buna-N rubber or EPDM |
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 |
| H | 370 | 408 | 452 | 510 | 566 | 630 | 765 | 927 | 1048 | 1110 | 1320 |
| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
