Wafer Type Dual Plate Check Valve
PN10/PN16/CL125LB
1-1/2″~28″ (40~700mm)
Cast Iron, Ductile Iron
Wafer Type Dual Plate Check Valve Descriptions
Wafer type dual plate check valve is one type of non-return valve with two torsion springs added to each of pair valve plates, which close the plates quickly and automatically, preventing the mediums from flowing back. Wafer dual plate check valve can be mounted between the two pipes in both horizontal and vertical directions. Wafer type dual plate check valve has features of compact structure, light weight and bidirectional. Flowspec Luokai can manufacture the wafer type dual plate check valve in accordance with API594 with material of cast iron, ductile iron and bronze.
1. FEATURES
- Small in size, light weight, compact structure, easy maintenance
- Quick action prevents of medium back flow
- Short face to face and good rigidity
- Easy installation, can be mounted horizontally and vertically
- Tightly sealed, without leakage
- Safe and reliable operation, high interference-resistance
3. STANDARDS
- Design & manufacturing: API594
- Face to face: ANSI B16.10, EN 558-1 series 16
- Matching flanges: GB/T17241.6, ANSI B16.1/5, EN 1092, JIS10K, AS 2129
- Inspection & testing: API598, GB13927
2. TECHNICAL SPECIFICATIONS
- PN10 / PN16 / 125LB / 150LB / JIS10K / 150PSI / 200PSI
- Size: 1-1/2″~28″ (40~700mm)
- Materials: A126 B (GG25), A536 65-45-12 (GGG40), A216 WCB, S.S.304(CF8), S.S.316(CF8M), B148 C95400
- Epoxy coating with thickness ≥ 250μm
- Applicable medium: water, sewage, sea water, air, steam, oils, food, corrosive liquids
- Applicable temperature: -15℃~+150℃ (higher temperature is available upon request)
4. APPLICATIONS
- Water works, water projects
- Environment protection
- Public facilities
- Power plant
- Building industry, real estate
- Petroleum, chemical industry
- Steel work, metallurgy
- Food & beverage
- Water treatment plant
Why Choose Flowspec Luokai
45+ Years Experience
Founded in 1978, manufacturing industrial valves for over four decades with proven reliability worldwide.
Global Certifications
ISO 9001, CE/PED, WRAS, FM, UL, API approved — compliant with international quality and safety standards.
OEM Custom Solutions
Flexible design and manufacturing per your specifications — material, size, pressure, actuation tailored to project needs.
Worldwide Delivery
Exported to 5 continents — North & South America, Europe, Middle East, Southeast Asia, and Africa.
Our Service Promise
Strict Quality Control
Every valve tested to API 598, EN 12266 before shipment
Timely Global Delivery
Reliable logistics to 5 continents with secure packaging
OEM & Custom Design
Tailored material, size, pressure and actuation to your specs
Dedicated After-Sales
Technical support and service throughout product lifecycle


