Fire Elastic Soft Seal Gate Valve

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.

  • Modular maintenance and long lifespan
  • Lightweight and convenient operation
  • Low flow resistance and anti impurity ability
  • Corrosion resistance and hygiene safety
  • High sealing design
Modular maintenance and long lifespan
  • Modular maintenance and long lifespan
    01
    The three "O" - shaped sealing ring design supports continuous water and pressure replacement, and can be quickly maintained without disassembling the valve;
  • 02
    Rubber coated gate and valve seat have no metal friction, reducing wear, extending service life, and lowering maintenance costs.
Lightweight and convenient operation
  • Lightweight and convenient operation
    01
    The valve body is made of ductile iron precision casting, which reduces the weight by 20% -30% compared to traditional cast iron. It supports various installation methods such as flanges and clamps;
  • 02
    The concealed rod structure combined with embedded copper nuts has a small operating torque, effortless manual opening and closing, and quick emergency response.
Low flow resistance and anti impurity ability
  • Low flow resistance and anti impurity ability
    01
    Full basin straight channel design, with fluid resistance close to a straight pipe, reducing pressure drop loss and avoiding blockage caused by impurity accumulation;
  • 02
    The flat bottom valve seat structure is suitable for fire foam mixture with high solid content to ensure stable flow of emergency water supply.
Corrosion resistance and hygiene safety
  • Corrosion resistance and hygiene safety
    01
    The valve body is coated with non-toxic epoxy resin both inside and outside, and the valve stem and nut are made of stainless steel/bronze material, which is resistant to water, oil, and weakly corrosive media and meets the hygiene standards for drinking water;
  • 02
    Rubber sealing materials are treated with special vulcanization to resist aging and high temperatures (≤ 80 ℃), making them suitable for long-term use in firefighting media.
High sealing design
  • High sealing design
    01
    Adopting an integral rubber coated valve core structure, the gate and ductile iron skeleton are closely adhered to the rubber layer (such as NBR) through vulcanization process, achieving bidirectional zero leakage sealing;
  • 02
    The flat bottomed valve seat design avoids the accumulation of impurities, and combined with the stretching and extrusion characteristics of elastic rubber, it maintains stable sealing performance for a long time.
Main Component Materials

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

Performance Specifications & Dimensions
  • Nominal Pressure PN
    1.0/1.6
  • Shell F
    Px1.5
  • Sealing Pressure
    Px1.1
  • Medium
    Water、oil
  • Temperature (℃)
    ≤100℃

Nominal Diameter
DN(mm)

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.

Valve Application
  • Oil & Gas Transportation

    Oil and gas transportation involves multiple modes such as pipelines and ships, and is the core link of the energy supply chain.

  • Chemical Raw Material Control

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

  • High Temperature SteamPipeline in Power System

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

  • Other Industries

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

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