Product Advantages

1. Three-section structure with double check valves and intermediate relief chamber, effectively prevent backflow and back-siphonage to avoid cross-contamination of pipeline medium.

2. Built-in intermediate relief device automatically releases pressure when backflow risk occurs, achieving high safety protection level.

3. Vertical large flow passage with moderate flow resistance, widely used in water supply, chemical, fire protection and storage tank pipeline systems.

4. Integral cast CF8 stainless steel body, excellent corrosion resistance against water, weak acid and neutral media, suitable for corrosive working conditions.

5. Sectional bolted flange connection, detachable for maintenance, convenient for internal cleaning and replacement of sealing assemblies.

6. Side-mounted test valves for regular on-site inspection of protection performance.

7. 100% hydrostatic shell & sealing performance test before delivery; UT/PT NDT inspection available for castings and welds.

8. We provide customized solutions according to customers’ working conditions, drawings and parameter requirements.