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Home > Check Valve > Custom Stainless Steel Wafer Dual Disc Check Valve AWWA C594 Suppliers, Factories
Custom Stainless Steel Wafer Dual Disc Check Valve AWWA C594 Suppliers, Factories
Custom Stainless Steel Wafer Dual Disc Check Valve AWWA C594 Suppliers, Factories
Custom Stainless Steel Wafer Dual Disc Check Valve AWWA C594 Suppliers, Factories
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Custom Stainless Steel Wafer Dual Disc Check Valve AWWA C594 Suppliers, Factories
Custom Stainless Steel Wafer Dual Disc Check Valve AWWA C594 Suppliers, Factories
Custom Stainless Steel Wafer Dual Disc Check Valve AWWA C594 Suppliers, Factories

Custom Stainless Steel Wafer Dual Disc Check Valve AWWA C594 Suppliers, Factories

Type: Wafer type

Series: H71W-10/16

Size: DN40-DN700/2”-28”

Pressure rating: PN6/PN10/PN16/PN25

Design standard: AWWA C594

Service: OEM&ODM

Stainless steel wafer check valve is an automatic anti backflow valve made of stainless steel as the main material and adopts a clamp installation structure. It relies on the pressure difference of the medium itself to achieve opening and closing, without the need for external driving devices.

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Product Description

Technical Specifications
Valve Type Wafer check valve Structure Double disc
Standard AWWA C594 Workmanship Investment casting
Sealing direction Single-directional Sealing grade Zero leakage
Temperature -40°C < T < 800°C Operation Self-starting
Characteristics

This wafer check valve is mainly composed of stainless steel valve body, stainless steel valve disc, elastic sealing valve seat, shaft, reset torsion spring and other components.

Characteristics
Key Advantages
Super strong corrosion resistance: Suitable for multi medium working conditions. Stainless steel (such as 304, 316, 316L) forms a dense chromium oxide protective film, effectively resisting weak acids, bases, salt solutions, and seawater.
Excellent hygiene performance: Meeting the needs of clean fluids. High surface finish with no pores avoids adsorption of impurities, ideal for drinking water, food, and pharmaceutical industries.
High mechanical strength: Anti-wear and impact resistance. Superior tensile and yield strength compared to cast iron, capable of withstanding high-pressure erosion and extending service life.
Stainless Steel Advantages
Packing & Logistics

Standard export wooden case packaging ensures the safety of the valves during long-distance transportation.

Standard export wooden case packaging
Application Scenarios

Widely used in pipeline systems in industries such as chemical, petroleum, pharmaceutical, food and beverage, seawater desalination, water treatment, HVAC, etc. It is particularly suitable for working conditions with strict requirements for medium cleanliness and limited installation space.

Application 1
Application 2
Application 3
Material Specifications
Body Disc Stem Rubber gasket Spring
Name Code Name Code Name Name Code Working temp ℃ Name
Cast Iron
Ductile lron
Carbon steel
Stainless steel		 Z
Q
C
P		 Plated ductile Iron
Aluminum bronze
Stainless steel
CF8M Stainless steel		 1
2
5
7		 Stainless steel EPDM
Neoprene
NBR		 X3
X4
X5		 -46~+121
-50~+150
-29~+99
-23~+150		 Stainless steel
Dimensions
Dimension Diagram
DN D D1 D2 L R t
mm inch
502"1076543.34328.219
1004"16211790.86452.827
2008"273224198.289104.433
30012"378310283.9114148.343
60024"690624572.6178295.473
Frequently Asked Questions
1. What are the primary applications for this wafer check valve? It is widely used in chemical, petroleum, pharmaceutical, food and beverage, and water treatment industries, especially where installation space is limited and high hygiene or corrosion resistance is required.
2. Does the valve meet international manufacturing standards? Yes, this valve is manufactured according to the AWWA C594 standard, ensuring high-quality workmanship and reliable performance in various industrial settings.
3. What makes stainless steel a better choice for the valve body? Stainless steel (304/316/316L) provides excellent corrosion resistance against acids and salt solutions, offers high mechanical strength, and ensures zero contamination for clean fluid applications.
4. What is the temperature range this valve can handle? The valve is designed to operate in a wide temperature range, from as low as -40°C up to 800°C, depending on the specific material configuration and seal type selected.
5. Is zero leakage guaranteed with this design? Yes, the double disc structure combined with elastic sealing valve seats is engineered to achieve a zero-leakage sealing grade in single-directional flow.
6. How is the valve protected during shipping? All valves are packaged in standard export wooden cases to provide maximum protection against impact and environmental factors during domestic or international transit.

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