Product Overview
The Double Disc Gate Valve is designed for reliable shut-off in low to medium pressure pipeline systems.
It features two parallel wedge discs that expand against the seat rings to achieve tight sealing with low operating torque.
This design allows smooth opening/closing, reduced seat wear, and stable sealing performance even under pressure fluctuations.
It is widely used in water supply, municipal pipelines, irrigation, power plants, and industrial systems.
Product Advantages
● Long Service Life: Reduced wear due to sliding action and automatic sealing adjustment.
● Stable Performance: Consistent sealing even under low differential pressures.
● Ease of Maintenance: Simple seat/disc replacement and compact structure.
● Versatile Application: Suitable for clean water, air, oil, steam (low/medium pressure), and industrial media.
● International Standard Compliance: Designed and tested to EN, ASME, and API requirements.
Size Range
● NPS 1″ – 40″ / DN25 – DN1000
Pressure Rating
● Class 150
● Class 300
● PN10
● PN16
● PN25
● PN40
Standards
● Design Standard: EN 1984 / API 600 / ASME B16.34
● Test Standard: EN 12266 / API 598
● Flange Standard: EN 1092-2 / ASME B16.5 / ASME B16.47
Industry Applications
● Municipal and industrial water supply systems
● Water treatment and distribution pipelines
● Power plant auxiliary pipelines
● Industrial fluid pipelines
● Irrigation and large-diameter water networks
● Air, gas, oil (low/medium pressure) systems
Tianjin Dingliu valve Industry Co., Ltd. is a high-tech enterprise specializing in the valve and automation industry.
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