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Fire signal gate valve is a special valve for monitoring the flow of fire water supply system and the electrical signal of closure state. It is mainly used in the main pipeline of automatic sprinkler system for closure and closure state control. In addition, it can also be controlled by the closure and closure state of the fixed fire extinguishing system
Body | Ductile Iron |
Disc | Ductile Iron+EPDM |
Stem | Stainless Steel |
Bonnet | Ductile Iron |
stem nut | Ductile Iron |
Size | L | D | D1 | D2 | B | F | Zxфd |
50 | 178 ±1.5 | 165 | 125 | 99 | 19 | 3 | 4xф19 |
65 | 190 ±2 | 185 | 145 | 118 | 19 | 3 | 4xф19 |
80 | 203 ±2 | 200 | 160 | 132 | 19 | 3 | 8xф19 |
100 | 229 ±2 | 220 | 180 | 156 | 21 | 3 | 8xф19 |
125 | 254±2 | 250 | 210 | 184 | 22 | 3 | 8xф19 |
150 | 267 ±2 | 285 | 240 | 211 | 22 | 3 | 8xф23 |
200 | 292 ±2 | 340 | 295 | 266 | 23 | 3 | 12xф23 |
250 | 330 ±3 | 405 | 350/355 | 319 | 26 | 3 | 12Xф28 |
300 | 356±3 | 460 | 400/410 | 370 | 28.5 | 4 | 12Xф28 |