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SL-1116F
SHUANGLIN
Efficient water systems require more than reliable shut-off—they also need effective protection against reverse flow. The SHUANGLIN VALVE Mechanical Lockable Gate Valve with Check Valve combines two essential functions into one compact assembly, providing both secure isolation and automatic backflow prevention.
Available in DN15–DN25, this integrated valve reduces installation complexity by eliminating the need for separate isolation and non-return valves. The built-in check valve automatically prevents reverse water flow, helping maintain system pressure, protecting equipment, and reducing the risk of contamination within water distribution networks.
The mechanical locking mechanism allows operation only with the matching service key, making the valve particularly suitable for utility companies, property management, and facilities where access must be carefully controlled. This design minimizes accidental operation while simplifying routine maintenance and inspection procedures.
Constructed from durable forged brass, the valve offers excellent resistance to corrosion, pressure fluctuations, and long-term wear. Precision manufacturing ensures smooth gate movement and dependable sealing performance throughout repeated operating cycles.
By combining flow isolation and backflow protection in a single product, the valve helps save installation space, reduce piping components, and improve overall system reliability.
Mechanical lockable operation
Integrated check valve prevents backflow
Available in DN15–DN25
Forged brass construction
Compact two-in-one design
Stable sealing performance
Reduced installation components
Easy maintenance
Long operational life
OEM customization supported
Water meter systems, building water supply, municipal pipeline networks, utility maintenance, commercial plumbing, and potable water distribution systems requiring reverse-flow protection.
