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Home > Support > Technical Info > Solenoid valve installation

How to Install a Solenoid Valve

  • Dust, metal chip and tape seal in the pipes should be removed before installation.

  • When using seal tape on the connector or fittings, do not wrap the front two pitch of teeth by seal tape to prevent the seal tape from entering internal of solenoid valve.

  • For the long-term and proper operation of the solenoid valve, a Y-strainer with a mesh size of 100–120 must be installed before the solenoid valve. For steam pipelines, a steam trap should be installed, and regular inspections must be conducted to ensure proper drainage. Failure to do so may affect the normal operation of the solenoid valve. Additionally, a bypass circuit should be installed to facilitate maintenance and replacement. The minimum operating differential pressure for pilot-operated solenoid valves is 0.3 kg/cm² (P1 > P2).

  • If the coil is removed or rotated, make sure to tighten the coil fixing screws during reassembly to prevent noise, extend the solenoid valve’s lifespan, and avoid coil burnout. When disassembling the internal structure for cleaning and debris removal, ensure that all internal components are neither lost nor deformed to avoid operational failure.

  • Please carefully refer to the product catalog for applicable fluid types, temperature and pressure ranges, and coil power ratings (W) for each model.

  • The allowable voltage range for the coil should not exceed ±10% of the specified product voltage.

　　•　AC110V, AC220V, DC24V, DC12V, and other voltages require custom orders.

　　•　The coil should not remain continuously energized for more than 30 minutes.

  • Do not exceed or fall below the specified operating pressure range.

  • Important Notes for Solenoid Valves::

　　• Minimum operating pressure differential:

　　　• P1 > P2 → Allowed​ ;

　　　• P1 < P2 → Not allowed

　　•　Pilot-operated solenoid valves require a minimum operating flow rate.

  • The solenoid valve must not be installed at the bottom of the tank. It must be installed at least 40 cm above the tank sediment level.

  • For optimal efficiency, the solenoid valve should be installed in a parallel position, with the coil facing upward and perpendicular to the ground.

  • When used in air conditioning circulation water systems, if backflow occurs while the solenoid valve is in the normally closed (NC) state (i.e., secondary pressure P2 is greater than primary pressure P1), the solenoid valve should not be used. In such cases, an electric valve is recommended.

How to Install a Solenoid Valve

To ensure the solenoid valve operates stably and efficiently over the long term, the installation process must follow certain fundamental principles and precautions.

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