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High Pressure Cast Iron Flange Gate Valve For Industrial Water Systems​
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High Pressure Cast Iron Flange Gate Valve For Industrial Water Systems​

High Pressure Cast Iron Flange Gate Valve For Industrial Water Systems​

Our ​​flange gate valve​​ is built for demanding applications in ​​water systems, general industry, and commercial plumbing​​. Manufactured with ​​high-quality cast iron, stainless steel, or bronze​​, it ensures durability and smooth operation.

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Description

Ca-Fire Protection Co.,Ltd is one of the most credible manufacturers and suppliers of high pressure cast iron flange gate valve for industrial water systems​ in China. Welcome to wholesale custom made fire equipment products at competitive price from our factory. Contact us for more cheap products.

 

Products Description

 

OSY Gate Valve Gate Valve Cast Iron Signal Flange Gate Valve
 
 

CA - FIRE  Flange Gate Valve

 Specifically engineered for fire protection water supply systems, this specialized valve provides reliable flow isolation and emergency maintenance capabilities. The wedge-shaped disc design ensures smooth and low-torque operation during opening and closing cycles. The compact non-rising tem version features space-saving construction with clear visual indicators for valve position, while the rising stem variant offers immediate visual confirmation of operational status through its extending spindle mechanism. These valves serve as critical components in automatic sprinkler systems, fire hydrant networks, and are equally suitable for water distribution, drainage, petrochemical, and industrial pipeline applications where dependable shut-off performance is required.

Working Principle

 The fire safety gate valve operates on a simple yet effective ​​linear motion mechanism​​. When the handwheel is rotated, it drives the threaded stem to move upward or downward, which in turn raises or lowers the wedge-shaped gate. In the ​​closed position​​, the gate is pressed firmly against two parallel seats, creating a complete seal that blocks fluid flow. As the valve opens, the gate lifts vertically out of the flow path, allowing ​​full-bore passage​​ with minimal pressure drop.

 The ​​non-rising stem (NRS) version​​ keeps the stem stationary while internal threads move the gate, making it ideal for confined spaces. The ​​rising stem (RS) design​​ provides visual operation confirmation as the stem extends visibly when opening. Both types maintain reliable sealing through ​​metal-to-metal contact​​ between the wedge and seats, ensuring leak-proof performance even after long periods of inactivity - a critical feature for fire protection systems.

 

Products Features

 

Reliable Wedge Seal Design​​

Metal-to-metal contact ensures leak-proof performance even after long dormancy, critical for emergency systems.

01

Space-Saving Options

Choose between compact non-rising stem (NRS) with position indicator or visible rising stem (RS) for status confirmation.

02

Full-Bore Flow Path

Minimal pressure drop when fully open, maintaining system pressure for firefighting requirements.
 

03

Emergency-Ready Construction

Zero-cavity design prevents sediment buildup and operates instantly after years of inactivity.

 

04

Technical Parameter

 

Model Specification

Flange Dark Stem Fire Gate Valve

ZSZF4 - Q - 50/65/80/100/125/150/200/250/300 - 16

Flange Bright Stem Fire Gate Valve

ZSZF4 - Q - 50/65/80/100/125/150/200/250/300- 16 - M
Nominal Diameter DN 50 65 80 100 125 150 200 250 300 350 400 
Structure Length mm 185 190 200 228 255 270 290 330 358 307 340
Rated Working Pressure 1.6MPa
Strength Test Pressure 6.4MPa
Suitable Medium

Water, Foam Mixture
Medium Temperature 4 - 70℃

 

 

Application Industries & Scenarios

 ​​4 KEY APPLICATIONS FOR FIRE SAFETY GATE VALVES
Installation Tip:​The valve's full-bore design and wedge sealing mechanism make it equally
effective for both ​​fire protection service​​ and ​​process fluid control​​ in industrial settings.
product-250-250
Automatic Sprinkler Systems
Installed as main control valves to ensure immediate water shutoff during maintenance while maintaining full flow capacity during emergencies.
Fire Signal Gate Valve Flange Type
Fire Hydrant Networks 

 

Serves as isolation valves for hydrant branches, with wedge design preventing leaks even after years of dormancy.
product-325-325
High-Rise Building Standpipes
Rising stem models allow visual confirmation of valve status for fire safety inspections in stairwell risers.
Fire Signal Gate Valve Flange Type
Industrial Fluid Systems​​ 

 

Corrosion-resistant construction suitable for fire protection lines in petrochemical plants, power stations and other demanding environments where reliable emergency shutoff is critical.

  How does a fire safety valve work?When not to use a gate valve?

Fire Signal Gate Valve Flange TypePrecision - Engineered Fire Gate Valve

Quick - Acting Fire Gate ValveQuick - Acting Fire Gate Valve

How To Cooperate With Us?

Our address

NO.8, YUANFENG ROAD, MEIYUAN VILLAGE, KANGMEI TOWN, NANAN CITY, QUANZHOU CITY, FUJIAN CHINA

Phone Number

+86 18160950625

E-mail

miki@ca-fire.com

product-943-596

 

 

 

 

 

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