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

View Product Details →
36+Years Experience
5Production Bases
3,000TAnnual Output
24HQuote Delivery

API 594 Certified

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

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 →


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 →


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 →


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 →


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 →


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 →

View All Check Valves →

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.

Compliance

Standards & Certifications

PANS wafer type check valves meet the strictest global procurement requirements — approved for Europe, North America, and Middle East markets.

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 →

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.

Need Help Selecting? Contact Our Engineers →

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 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.

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

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.

More Check Valve Products

Cast Swing Check Valve
View Details →



Cast Lift Check Valve
View Details →



All Check Valves
View Collection →