Selection Tips

1, Voltage Matching: AC220V is for standard mains power; DC24V/12V are better for industrial control, vehicle, and low-voltage systems. Always confirm the coil voltage to avoid burnout.

2,Temperature Limits: The seal material determines the maximum operating temperature. For example, NBR (80°C max) is not suitable for continuous use in hot water above 80°C, as it will degrade and leak.

3,Media Compatibility: Oily media requires VITON seals, as NBR will swell and fail in oil. Steam applications should use VITON or higher-grade seals.

4,Size Consistency: Always match the valve size to your pipe's nominal diameter. Using a smaller valve will restrict flow and shorten its lifespan.

Supplementary Key Points (3 Points Summary)

✅PTFE Seal UpgradePTFE sealing is newly upgraded, with temperature resistance up to 260℃, excellent resistance to strong acid, alkali and organic solvents, ideal for chemical and high-temperature steam working conditions.

✅Dual Power OptionsIt provides dual power specifications: 22VA/30VA for AC and 17W/24W for DC, matching different coil types and adaptable to customers' various power load requirements.

✅Model Code RuleThe letter X in the model stands for sealing material code: N=NBR, E=EPDM, V=VITON; just replace it directly when ordering.

Our Advantages:

✅High Pressure Rating – Built for Fire-Fighting Systems
Operating pressure range 0.3–1.6 MPa (3–16 bar). Designed specifically for high-pressure water and foam systems used in fire protection applications.

✅Durable Brass Body – Corrosion Resistant
High-quality H59-1 forged brass body offers excellent mechanical strength and corrosion resistance. Withstands harsh environmental conditions and fire-fighting chemicals.

✅Pilot-Operated Diaphragm Design – High Flow Capacity
Pilot-operated diaphragm structure provides low power consumption while delivering high flow rates (Cv up to 24). Available in port sizes from 1/2" to 2".

✅Multiple Seal Options – Media Compatible
Available with NBR (air, water), EPDM (hot water), or Viton (oil, high-temp) seals. Flexible for different fire-fighting media including foam and water.

✅Fail-Safe Normally Closed – Safety Oriented
Normally closed design remains shut when de-energized. Opens only when power is applied - ideal for critical fire-fighting systems requiring fail-safe operation.