Fire elastic soft seal signal gate valve is a special valve designed for fire protection systems. The core adopts a rubber elastic seal valve core (such as NBR) combined with a metal skeleton, which has both flexible sealing and signal monitoring functions. It provides real-time feedback on valve opening and closing status to the fire control center through built-in sensors, ensuring rapid water flow interruption in case of a fire; Through direct flow channels, corrosion-resistant coatings, and modular design, it maintains low leakage and easy maintenance characteristics in high-pressure and impurity containing media, ensuring the reliability of fire water supply.





Valve body and valve cover | Valve plate, valve seat | Valve stem | Stem nut | Filler | Handwheel |
carbon steel | High quality carbon steel+hard alloy or stainless steel | chromium stainless steel | ZQAL9-4 Aluminum Bronze | flexible graphite | malleable cast iron |
Chromium nickel titanium steel | Stainless steel+hard alloy | Chromium nickel titanium stainless steel | ZQAL9-4 Aluminum Bronze | Immersed in polytetrafluoroethylene | malleable cast iron |
Ci Ni Mo Ti Steel | Stainless steel+hard alloy | Chromium nickel molybdenum titanium stainless steel | ZQAL9-4 Aluminum Bronze | Asbestos packing | malleable cast iron |
chromium-molybdenum steel | Alloy steel+hard alloy | Chromium molybdenum aluminum steel | ZQAL9-4 Aluminum Bronze | flexible graphite | malleable cast iron |

Nominal Diameter | L (flange length) | D (flange length) | D1 (sealing surface diameter) | D2 hole spacing | Z - Φ d (number and diameter of holes) | H height dimension | ||||||
PN1.0MPa | PN1.6MPa | PN1.0MPa | PN1.6MPa | PN1.0MPa | PN1.6MPa | PN1.0MPa | PN1.6MPa | PN1.0MPa | PN1.6MPa | PN1.0MPa | PN1.6MPa | |
50 | 178 | 165 | 99 | 125 | 4-19 | 280 | ||||||
65 | 190 | 185 | 118 | 145 | 4-19 | 285 | ||||||
80 | 203 | 200 | 132 | 160 | 8-19 | 315 | ||||||
100 | 229 | 220 | 156 | 180 | 8-19 | 350 | ||||||
125 | 254 | 250 | 184 | 210 | 8-19 | 410 | ||||||
150 | 267 | 285 | 211 | 240 | 8-23 | 435 | ||||||
200 | 292 | 340 | 266 | 295 | 8-23 | 12-23 | 540 | |||||
250 | 330 | 395 | 405 | 319 | 350 | 355 | 12-23 | 12-28 | 690 | |||
300 | 356 | 445 | 460 | 370 | 400 | 410 | 12-23 | 12-28 | 740 | |||
350 | 381 | 505 | 520 | 429 | 460 | 470 | 16-23 | 16-28 | 835 | |||
400 | 406 | 565 | 580 | 480 | 515 | 525 | 16-28 | 16-31 | 895 | |||
450 | 432 | 615 | 640 | 530 | 548 | 565 | 585 | 20-28 | 20-31 | 1000 | ||
500 | 457 | 670 | 715 | 582 | 609 | 620 | 650 | 20-28 | 20-34 | 1150 | ||
600 | 508 | 780 | 840 | 682 | 720 | 725 | 770 | 20-31 | 20-37 | 1300 | ||
Note: The pressure range is 1.0MPa~1.6MPa. The above data is for reference only. Please consult the company's sales department for details.
Oil and gas transportation involves multiple modes such as pipelines and ships, and is the core link of the energy supply chain.

The control of chemical raw materials covers the entire process of mining, storage, and production, ensuring safety and process stability.

High temperature steam pipelines are the core of energy transmission in power systems, supporting the efficient operation of thermal and nuclear power plants.

Valves control fluids in multiple industries such as new energy and electronics, ensuring safe and efficient production.


