Reliable Backflow Prevention for High-Flow Systems

Kunjian Tech’s Swing Check Valve is engineered for high-capacity industrial applications requiring minimal flow resistance. Designed to prevent reverse flow automatically, this valve is essential for protecting pumps and equipment in oil, gas, wastewater, and chemical processing plants.

Key Features

• The full-port design ensures maximum flow efficiency and minimal energy loss.
• Available in Ductile Iron, Carbon Steel, and Stainless Steel to withstand harsh industrial environments.
• Choose between NBR/EPDM resilient seats for tight shut-off or metal-to-metal seating for high-temperature durability (up to +425°C).
• Top-entry cover allows for quick inspection and parts replacement without removing the valve from the pipeline.
• Manufactured to meet rigorous international standards including ANSI, API 598, and ISO 9001.

Technical Specifications

• Size Range: DN40 – DN600mm
• Pressure Rating: PN16 / PN25 / Class 150
• Connection: Flanged (ANSI B16.5 / EN 1092-2)
• Temperature Range: -20°C to +425°C (Material dependent)

B2B Applications

Optimized for the building industry, power generation, and marine engineering, our swing check valves provide long-term reliability and lower total cost of ownership for large-scale infrastructure projects.