OEM China Suppliers Factory Stainless Steel Wafer Dual Disc Check Valve AWWA C594 for Optimal Backflow Prevention Manufacturers, Factory

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, Our stainless steel wafer check valve, manufactured in China, is a reliable automatic anti-backflow valve designed for efficient performance in various applications. Constructed using high-quality stainless steel, this valve features a clamp installation structure that ensures easy integration into existing systems. Utilizing the medium's pressure difference, it opens and closes automatically without the need for external driving devices, making it a cost-effective and low-maintenance solution. As a trusted supplier and factory of industrial valves, we focus on delivering products that meet strict design standards and customer requirements. Explore our range of wafer check valves to enhance your operations reliably and efficiently

Product Description

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Product 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
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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.

Valve Characteristics
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Key Advantages

1. Super Strong Corrosion Resistance

Stainless steel (such as 304, 316, 316L) will form a dense chromium oxide protective film on its surface, which can effectively resist the corrosion of weak acids, weak bases, salt solutions, seawater, and humid environments. Compared with cast iron and cast steel materials, it can avoid problems such as rusting, corrosion, and perforation of the valve body.

2. Excellent Hygiene Performance

Stainless steel material has a high surface finish, no pores, no adsorption of impurities, and is not easy to breed bacteria. It can be directly used in working conditions such as drinking water, food and beverage, pharmaceutical preparations, etc. It meets hygiene standards and solves the pain point of corrosion and pollution.

3. High Mechanical Strength

The tensile strength and yield strength of stainless steel are much better than cast iron, and it can withstand long-term erosion from high-pressure and high flow media, as well as pressure impact during pipeline start-up and shutdown, extending service life and reducing maintenance costs.

Valve Advantages
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Packing & Delivery

Standard Export Wooden Case Packaging: Professional protection for international shipping.
Export Packaging
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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 corrosion resistance.
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Frequently Asked Questions

QWhat standard does this wafer check valve comply with?
This wafer check valve is manufactured in compliance with the AWWA C594 standard, ensuring consistent quality, dimensional accuracy, and reliable performance across all applicable pipeline applications.
QWhat is the operating temperature range of this valve?
This valve supports a wide operating temperature range from -40°C to 800°C, making it suitable for both cryogenic and high-temperature pipeline systems in various industries.
QWhich stainless steel grades are available?
The valve is available in stainless steel grades 304, 316, and 316L. Each grade offers different levels of corrosion resistance, with 316L being ideal for highly corrosive or saline media environments.
QIs this valve suitable for use in food or pharmaceutical applications?
Yes. The stainless steel material provides a high-polish, non-porous surface that resists bacterial growth. It meets the hygiene standards required for drinking water, food processing, and pharmaceutical systems.
QHow does the double disc structure improve performance?
The double disc design reduces the overall weight and size compared to single-disc valves, enabling faster response to flow changes, lower fluid resistance, and a more compact installation footprint.
QWhat packaging method is used for export shipments?
All valves are packed in standard export wooden cases, which provide strong protection against mechanical impact, moisture, and vibration during long-distance international shipping.

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