Double Disc Wafer Check Valve

Product Overview
The Double Disc Wafer Check Valve is a slim, lightweight and high-efficiency one-way flow control valve designed exclusively for compact pipeline installation environments. Different from traditional swing and lift check valves with bulky structures, this wafer-type check valve adopts a thin-body wafer design and dual semicircular disc structure, which can be directly clamped between two pipe flanges without extra flange connection occupation.
Manufactured from high-quality stainless steel, the double disc wafer check valve delivers outstanding corrosion resistance and structural toughness. The dual-disc flexible opening design enables quick response to fluid flow changes. When the medium flows forward, the two discs open symmetrically to allow smooth passage; when the flow stops or reverses, the discs reset instantly under fluid pressure and spring force to block backflow. It is the optimal anti-return solution for narrow pipeline sections, modular equipment and dense pipe network systems.
Unique Product Features & Core Advantages
•Ultra-Compact Wafer Thin Body Design — Adopts slim wafer-type structure with extremely short installation length, saving more pipeline space than flanged check valves. Perfect for limited-space installation and dense pipeline layout scenarios.
•Dual Symmetrical Disc Mechanism — Double semicircular discs open and close synchronously with balanced stress distribution. No unilateral jamming or deviation, ensuring stable and consistent operation for a long time.
•Low Flow Resistance & Energy Saving — Large equivalent flow area after opening, minimal fluid pressure loss. Effectively reduces pipeline operating load and improves overall system energy efficiency.
•Built-In Auxiliary Spring Design — Equipped with high-precision auxiliary spring, the discs can close rapidly even at low flow velocity. It effectively prevents medium backflow and avoids residual pressure reversal in the pipeline.
•Lightweight & Easy Installation — Integral thin-body structure greatly reduces valve weight. Clamp-type installation requires no flange bolts for fixing the valve body itself, realizing fast assembly and disassembly.
•Excellent Sealing Stability — Precision-fit disc and valve seat surface with uniform compression. Achieves reliable tight sealing under rated pressure, no dripping or seepage during long-term operation.
•High Anti-Corrosion Performance — Full stainless steel construction resists rust, oxidation and weak corrosive media, adapting to humid, water-rich and chemical auxiliary working environments.
•Strong Vibration Resistance — Balanced double-disc structure avoids strong water hammer impact and pipeline vibration, greatly improving the stability of the entire pipe network system.
Technical Specifications
•Product Name: Double Disc Wafer Check Valve
•Material: Premium Stainless Steel (CF8 / CF8M)
•Installation Type: Wafer Clamp Type
•Pressure Grade: PN10 / PN16 / PN25
•Applicable Medium: Water, industrial circulating water, oil, gas, weak corrosive liquid
•Size Range: DN40 ~ DN300
•Working Temperature: -20℃ ~ 180℃
•Structural Feature: Thin body, double disc, spring assisted, low pressure loss
•Installation Position: Horizontal and vertical pipelines available


Application Scope
This stainless steel double disc wafer check valve is widely used in space-limited and high-precision pipeline systems. It is commonly applied in building water supply and drainage, central air conditioning circulating systems, industrial water treatment lines, chemical conveying pipelines, municipal pipe networks, food and pharmaceutical fluid systems, and fire protection pipeline projects. It is specially suitable for equipment supporting pipelines and dense pipe arrangement scenarios where traditional flanged valves cannot be installed.
Why Choose ZTE VALVE Double Disc Wafer Check Valve
ZTE VALVE focuses on the development and production of compact and high-efficiency industrial valves. All double disc wafer check valves adopt precision stamping and integral processing technology, with strictly controlled body thickness, disc tolerance and spring elasticity. Each product passes medium tightness test and pressure impact test before delivery. We provide stable-quality space-saving check valve solutions, flexible customization services and fast global delivery, supporting engineering contractors and distributors with cost-effective pipeline valve products.