SWFI Journal · Water Valves

How a Water Solenoid Valve Works

Energising a coil creates a magnetic force that moves an armature. Depending on the design, this directly opens a passage or changes a pilot flow controlling a diaphragm.

Source illustration for How a Water Solenoid Valve Works
Image imported from the source article. Illustrative reference; this is not presented as an SWFI installation or a verified model drawing.

How it applies to the water system

Pilot-operated designs may need a minimum pressure differential. Direct-acting designs have different capacity and pressure limits, so the operating principle matters when selecting a replacement.

Selection and operating considerations

Use the correct coil voltage and duty rating. Follow the indicated flow direction and inspect the inlet or pilot strainer where one is specified.

Planning the requirement in Sabah

For a Kota Kinabalu building, plant room or water-transfer installation elsewhere in Sabah, send the valve nameplate and photographs of its pipework. Include the intended function, operating records and the connection standard so a replacement or new component can be reviewed properly.

Information to prepare

What should I send SWFI for this requirement in Sabah?

Send the site location, source-water information, operating flow and pressure, and the equipment model or photographs where available. SWFI is based in Kota Kinabalu and can review the requested supply or service scope against the site duty.

Discuss your water-system requirement with SWFI

Sabah Water Filter Industries (SWFI) is based in Kota Kinabalu, Sabah. Share your site details for equipment selection, sourcing or maintenance enquiries. The proposed model and scope depend on the actual water conditions and installation requirements.

Contact SWFI in Kota KinabaluExplore Industrial Products →

Related products and equipment

Technical topic and imported images: How A Solenoid Valve Works — source article. This is original SWFI editorial writing adapted for Sabah water-system enquiries. Check model-specific limits in current manufacturer documentation.