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Help CenterFlange Swing Check Valve 2 Years Warranty Mill Test Report For Water Supply Net
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and ISO9001 certified, is proud to present our premium Flange Swing Check Valve designed specifically for water supply networks. With an annual export value of US$1 million to US$1.5 million, we have supplied reliable valve solutions to markets across North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our swing check valve offers a durable, low-maintenance solution to prevent backflow in water pipelines, backed by a 2-year warranty and a comprehensive Mill Test Report (MTR) for each unit, ensuring material traceability and quality assurance.
This valve is engineered to meet the rigorous demands of water supply systems, municipal waterworks, and industrial piping networks. The flanged connection simplifies installation and maintenance, while the swing disc design provides minimal pressure drop and smooth operation. Below, we detail the key features, technical specifications, and benefits that make this product a trusted choice for engineers and procurement professionals worldwide.
Key Features and Benefits
- Robust Swing Disc Design – The disc swings freely on a hinge pin, allowing full flow in forward direction and closing automatically when flow reverses. This reduces water hammer and ensures reliable sealing.
- Flanged Connection – Standardized flanges (RF, FF, RTJ) compatible with PN10/16 or Class125/150, making installation simple and leak-proof.
- Durable Body Materials – Available in cast iron, ductile iron, and stainless steel (upon request), with corrosion-resistant internal coatings to suit various water qualities.
- Low Pressure Drop – The full-open disc design minimizes flow resistance, reducing energy consumption in pumping systems.
- 2-Year Warranty – We stand behind the quality of our product with a comprehensive warranty covering manufacturing defects.
- Mill Test Report Included – Each valve is supplied with a material test report (MTR) confirming chemical and mechanical properties, ensuring compliance with project specifications.
- Customizable Options – Extended bonnet, stem extension, locking device, and various seat materials (EPDM, NBR, PTFE) are available to meet specific requirements.
Technical Specifications
| Parameter | Value |
|---|---|
| Nominal Diameter | DN40 – DN600 (1.5" – 24") |
| Pressure Rating | PN10, PN16, Class125, Class150 |
| Body Material | Cast Iron (GG25), Ductile Iron (GGG40/50), Stainless Steel (CF8/CF8M) – customizable |
| Disc Material | Ductile Iron with Nylon or EPDM coating |
| Seat Material | EPDM, NBR, Viton, or Metal-to-Metal |
| Flange Standards | ANSI B16.5, DIN 2501, JIS 10K, BS 4504 |
| Temperature Range | -10°C to +120°C (standard rubber seat); higher temperatures available |
| Working Medium | Water, Oil, Gas, and compatible fluids |
| Warranty | 2 Years |
| Test Report | Mill Test Report (MTR) per EN 10204 3.1 or equivalent |
Why Choose Our Flange Swing Check Valve?
- Reliable Backflow Prevention – The swing check mechanism ensures immediate closure upon flow reversal, protecting pumps and equipment from damage.
- Easy Installation – Flanged ends allow direct bolting to pipework, reducing installation time and labor costs.
- Minimal Maintenance – With only one moving part (the disc), the valve is simple to inspect and service. The hinge pin is accessible for replacement if needed.
- Full Compliance with International Standards – Our valves are designed and tested in accordance with API 6D, BS 1868, and EN 1074, ensuring global acceptance.
- Complete Traceability – Every valve is serialized, and the Mill Test Report provides full material traceability, which is critical for quality-sensitive projects.
Shanghai Zhibang Valve Manufacture Co., Ltd. has built a reputation for delivering high-quality valve solutions since 2016. Our ISO9001-certified quality management system ensures consistent production standards. With an annual export value exceeding US$1 million, we have successfully partnered with distributors and end-users in over 50 countries. Our Flange Swing Check Valve is the preferred choice for water supply networks, irrigation systems, fire protection, and general industrial applications.
We are committed to customer satisfaction. Each order is subject to rigorous factory testing (hydrostatic and pneumatic) before shipment. Our team can also provide third-party inspection reports upon request. Contact us today to discuss your specific requirements, obtain a quotation, or request samples. We ship from Shanghai, Guangzhou, Hong Kong, and Beijing ports, ensuring timely delivery worldwide.
Frequently Asked Questions (FAQ)
-
What is the warranty period for this swing check valve?
We offer a 2-year warranty against manufacturing defects under normal operating conditions. The warranty covers replacement or repair free of charge. -
Do you provide a Mill Test Report (MTR) for each valve?
Yes, a Mill Test Report is included with every valve, providing chemical composition and mechanical properties of the body and disc materials. -
What materials are available for the valve body?
Standard options include cast iron and ductile iron. Stainless steel (CF8, CF8M) and other alloys are available upon request. Please specify your requirement. -
Can this valve be used for vertical pipelines?
Yes, the swing check valve can be installed in horizontal or vertical pipelines with upward flow. For vertical downward flow, a spring-loaded check valve is recommended. -
What pressure ratings are available?
We offer PN10, PN16, Class125, and Class150. Custom pressure ratings are available for specific projects. -
What is the maximum temperature this valve can handle?
Standard rubber seats (EPDM) are suitable for -10°C to +120°C. For higher temperatures, consider metal-to-metal seats or high-temperature elastomers. -
Is the valve suitable for wastewater or sewage?
Yes, with appropriate seat materials (e.g., EPDM or NBR), it can handle wastewater. For abrasive media, we recommend a ductile iron body with a wear-resistant lining. -
How long does delivery take?
Typical lead time is 15–30 days after order confirmation, depending on quantity and specifications. We ship from Shanghai, Guangzhou, Hong Kong, or Beijing ports.
Contact Shanghai Zhibang Valve Manufacture Co., Ltd. today for competitive pricing, technical support, and fast delivery. Your reliable partner for water supply check valves.
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