# Wafer Type Check Valve Manufacturer Wafer Type Check Valve Manufacturer in China | PANS Valve – Factory Direct [Check Valve](https://www.pansvalve.com/check-valve-factory/) ›Wafer Type China Factory Direct # Wafer Type*Check Valve*Manufacturer API594 Certified · 36+ Years Experience · Ships to 10+ Countries PANS Valve is a professional **wafer type check valve manufacturer** based in Wenzhou, China. We supply dual plate, swing, spring-loaded and silent check valve wafer type products — engineered for reliable backflow prevention in oil & gas, petrochemical, power generation, and water treatment systems. [ Get A Free Quote ](https://www.pansvalve.com/contact-us/) [View Product Details →](https://www.pansvalve.com/products/wafer-type-check-valve/) **36+**Years Experience **5**Production Bases **3,000T**Annual Output **24H**Quote Delivery ![Wafer Type Check Valve – PANS Valve China Manufacturer](https://www.pansvalve.com/wp-content/uploads/2022/04/6.jpg)![Wafer Type Check Valve – PANS Valve China Manufacturer](https://www.pansvalve.com/wp-content/uploads/2022/04/6.jpg) API 594 Certified API 594 Design Standard ISO 9001 Quality Management CE / TUV European Approved API 598 Test & Inspection [View Certifications →](https://www.pansvalve.com/quality-control/) ![Industrial Wafer Type Check Valve - PANS Valve China](https://www.pansvalve.com/wp-content/uploads/2026/04/wafer-type-plug-valves.webp)![Industrial Wafer Type Check Valve - PANS Valve China](https://www.pansvalve.com/wp-content/uploads/2026/04/wafer-type-plug-valves.webp) Wafer Type Check Valve Detail — PANS Valve Product Knowledge ## What Is a Wafer Type Check Valve? A **wafer type check valve** (also referred to as a *check valve wafer type* or *check valve type wafer*) is a compact non-return valve designed to be clamped between two pipeline flanges using through-bolts — without requiring bolt holes in the valve body itself. The valve operates automatically: forward flow pressure opens the disc(s), and when flow stops or reverses, spring force rapidly closes the discs — preventing backflow and eliminating water hammer. Its slim, disc-like profile makes it significantly lighter and more compact than traditional flanged check valves. ⚡Fast Auto-CloseSpring-loaded discs close instantly on flow reversal ⚖Lightweight & CompactShort face-to-face; ideal for space-constrained systems ↕Flexible InstallationHorizontal or vertical pipeline mounting 🔩Easy MaintenanceSimple structure, no external actuation required Product Series ## Our Wafer Type Check Valve Series From standard dual plate wafer check valves to customized high-pressure tilting disc models — PANS manufactures the full range of *wafer type check valves* to meet diverse industrial specifications. [ 01 Dual Plate Wafer Check Valve WCB · SS316 · Cast Iron Twin spring-loaded discs with low pressure drop. The most popular **dual plate wafer type check valve** for water, gas and oil pipelines. Learn More → ](https://www.pansvalve.com/products/wafer-type-check-valve/) [ 02 Swing Wafer Type Check Valve Cast Iron · Carbon Steel Single disc gravity-close design. Ideal for low-velocity systems. This **swing check valve wafer type** suits horizontal installation. Learn More → ](https://www.pansvalve.com/products/wafer-type-check-valve/) [ 03 Spring-Loaded Wafer Check Valve SS304 · SS316 · WCB Fast-closing **wafer type spring check valve** engineered to eliminate water hammer in high-velocity pump discharge lines. Learn More → ](https://www.pansvalve.com/products/wafer-type-check-valve/) [ 04 Non-Slam Silent Check Valve SS304 · SS316 · Carbon Steel **Wafer type non slam check valve** with spring-assisted silent closure. Minimizes vibration and noise in HVAC and building systems. Learn More → ](https://www.pansvalve.com/products/wafer-type-check-valve/) [ 05 Tilting Disc Wafer Check Valve Carbon Steel · Alloy Steel **Wafer type tilting disc check valve** for high-pressure, high-temperature applications. Low flow resistance, superior sealing. Learn More → ](https://www.pansvalve.com/products/wafer-type-check-valve/) [ 06 SS Wafer Check Valve GG25 Cast Iron · SS316L **Wafer type check valve** for municipal water. SS316L option for corrosive media in chemical and food processing industries. Learn More → ](https://www.pansvalve.com/products/wafer-type-check-valve/) [View All Check Valves →](https://www.pansvalve.com/check-valve-factory/) Technical Data ## Wafer Type Check Valve Specifications All PANS *wafer type check valves* are manufactured and tested in accordance with internationally recognized standards. Custom sizes and pressure ratings are available on request. ParameterSpecification Design StandardAPI 594, API 6D Face-to-FaceAPI 594, DIN 3202 Flange StandardASME B16.5, MSS SP-44 Test StandardAPI 598 Size Range2″ – 36″ (DN50 – DN900) Pressure Class150LB – 600LB; PN10 – PN40 Body MaterialWCB, CF8, CF8M, LCB, GG25 Disc MaterialWCB, SS304, SS316 Seat / SealPTFE, Metal, EPDM, NBR Temperature Range-29°C to +425°C InstallationHorizontal / Vertical Compliance ### Standards & Certifications PANS **wafer type check valves** meet the strictest global procurement requirements — approved for Europe, North America, and Middle East markets. ![PANS Valve Gate Valve API Certificate](https://www.pansvalve.com/wp-content/uploads/2022/03/GATE-VALVE-15848.jpg)![PANS Valve Gate Valve API Certificate](https://www.pansvalve.com/wp-content/uploads/2022/03/GATE-VALVE-15848.jpg) ![PANS Valve ISO 14001 Environmental Certificate](https://www.pansvalve.com/wp-content/uploads/2022/03/ISO14001.jpg)![PANS Valve ISO 14001 Environmental Certificate](https://www.pansvalve.com/wp-content/uploads/2022/03/ISO14001.jpg) ![PANS Valve ISO 9001 Quality Certificate](https://www.pansvalve.com/wp-content/uploads/2022/03/9001.jpg)![PANS Valve ISO 9001 Quality Certificate](https://www.pansvalve.com/wp-content/uploads/2022/03/9001.jpg) ![PANS Valve Ball Valve API Certificate](https://www.pansvalve.com/wp-content/uploads/2022/03/BALL-VALVE-158482.jpg)![PANS Valve Ball Valve API Certificate](https://www.pansvalve.com/wp-content/uploads/2022/03/BALL-VALVE-158482.jpg) API 594Design & Manufacture API 6DPipeline Valves API 598Valve Testing ASME B16.5Flanged Fittings ISO 9001Quality Mgmt ISO 14001Environmental CE / TUVEU Compliance **Custom Engineering Available:** PANS accepts OEM/ODM orders with tailored body materials, pressure classes, face-to-face dimensions, and end-user tagging. [Request Custom Quote →](https://www.pansvalve.com/contact-us/) ![PANS Valve](https://www.pansvalve.com/wp-content/uploads/2022/04/%E6%B5%99%E4%B8%9C2.png)![PANS Valve](https://www.pansvalve.com/wp-content/uploads/2022/04/%E6%B5%99%E4%B8%9C2.png) Free Download Download the Wafer Type Check Valve Data Sheet & PDF Catalog [ Wafer Check Valve PDF ](https://www.pansvalve.com/download/) [ Valve Data Sheet Download ](https://www.pansvalve.com/download/) Buyer's Guide ## Wafer Type vs Lug Type Check Valve: Key Differences Understanding the difference between **wafer and lug type check valves** is essential for correct valve selection. The table below helps engineers and procurement teams choose the right design. Feature Wafer Type Check Valve Lug Type Check Valve Mounting MethodClamped between flanges with through-boltsThreaded lugs bolted to each flange separately Weight✔ Lighter — preferred for weight-sensitive systemsHeavier body due to lug bosses End-of-Line Service✘ Not suitable — requires flanges on both sides✔ Suitable for dead-end / isolation service Installation Cost✔ Lower — fewer bolts, simpler assemblyHigher due to additional hardware Space Required✔ Compact — minimal face-to-face dimensionLarger footprint Best ApplicationGeneral pipelines, pumps, HVAC, water treatmentDead-end piping, isolation between systems Typical Price✔ More economicalHigher unit cost [Need Help Selecting? Contact Our Engineers →](https://www.pansvalve.com/contact-us/) Why PANS ## Why Source Wafer Check Valves from PANS? As a dedicated **wafer type check valve manufacturer in China**, PANS Valve combines 36+ years of precision manufacturing with ISO-certified quality systems. ![PANS Valve Factory – Wenzhou China](https://www.pansvalve.com/wp-content/uploads/2022/03/%E7%BB%84-2826.jpg)![PANS Valve Factory – Wenzhou China](https://www.pansvalve.com/wp-content/uploads/2022/03/%E7%BB%84-2826.jpg) PANS Factory 25,000 m² · 5 Production Bases · Wenzhou, China · Est. 1985 36+ Years Experience Founded in 1985 in Wenzhou, China — PANS has deep expertise in engineering products for demanding global markets. API594 / ISO Certified All wafer type check valves manufactured to API 594, API 598, ISO 9001, CE and TUV standards. 5 Production Bases 25,000 m² of workshop space with dedicated API valve, ball valve, butterfly valve production lines. 24H Quote / 20-Day Delivery Receive detailed quotation and drawings within 24 hours. Most orders ship within 20 days. OEM / Custom Solutions Customized materials, non-standard sizes, and bespoke face-to-face dimensions accepted. Global Export Experience Serving EPC contractors in 10+ countries including UK, Germany, UAE, and Saudi Arabia. Industries Served ## Where Are Wafer Type Check Valves Used? PANS wafer type check valves are trusted in critical infrastructure across multiple industries worldwide. Oil & Gas Upstream pipelines, refineries, and LNG terminals rely on PANS check valves. RefineryLNG Petrochemical Process lines with corrosive media use SS316 or alloy steel wafer check valves. Corrosive MediaHigh Temp Water Treatment Municipal water supply and sewage pumping stations use CI wafer check valves. MunicipalDesalination Power Generation Boiler feedwater and steam condensate systems specify low pressure-drop valves. Boiler FeedSteam HVAC & Building Commercial buildings use silent wafer type non slam check valves. Chilled WaterHVAC Food & Pharma SS316L sanitary-grade valves meet pharmaceutical GMP requirements. SS316LSanitary Request Factory-Direct Pricing onWafer Type Check Valves Quotation & engineering drawings delivered within 24 hours. [Get A Quote Now](https://www.pansvalve.com/contact-us/) [Download Data Sheet](https://www.pansvalve.com/download/) FAQ ## Frequently Asked Questions What is a wafer type check valve? A wafer type check valve is a non-return valve clamped between two pipe flanges using through-bolts. Its compact profile makes it lighter and shorter than conventional check valves. What are the main types of wafer check valves? The main types include: dual plate wafer check valve, swing wafer type check valve, spring loaded wafer check valve, and silent non-slam check valves. What is the difference between wafer type and lug type check valves? Wafer valves are clamped between flanges by through-bolts, while lug types have threaded bosses that allow them to be bolted to a single flange for end-of-line service. What sizes and pressure ratings are available? PANS offers sizes from 2″ to 36″ (DN50–DN900) and pressure classes including 150LB, 300LB, 600LB and PN10 to PN40. How is a wafer type check valve installed? It is secured between two matching flanges with through-bolts. Ensure the flow arrow on the body aligns with the intended flow direction. Can PANS supply customized wafer type check valves? Yes, we accept OEM orders with special materials (Duplex SS, Inconel), custom pressure ratings, and non-standard face-to-face dimensions. What is the price of wafer type check valves from PANS? Price varies by size and material. As a direct factory, we offer competitive factory pricing. Contact us for a quote within 24 hours. Where can I download the wafer type check valve data sheet? You can download the PDF catalog and technical data sheet from our Download Center. 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