Fluid Control Solenoid Solutions
Solenoid valves for water dispensers, RO purifiers and fluid-control appliances. Anti-clog inlet, drain and dispense specs — voltage, pressure, flow and mounting — on one page.
Applications
Product Highlights
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | DC 12 V / 24 V / 36 V |
| Operating Band | Rated ±10% to ±15% |
| Medium | Water (confirm additives) |
| Working Pressure | 0 – 1.0 MPa |
| Flow | 0.3 – 8.0 L/min |
| Medium Temperature | 0 – 100°C |
| Ambient | -10 – 60°C |
| Ports | Ø6 – Ø15 mm |
| Life / Noise | 100,000–500,000 cycles / ≤40–60 dB(A) |
| Power | 2 – 15 W |
OEM engineering brief
Application Engineering Guide
Water dispensers and RO appliances fail when a valve weeps, clogs, or cannot open at low tank pressure. Use this page to spec inlet, drain and dispense valves so the appliance team does not have to hunt a second source.
What the valve is doing
- Inlet / fillOpens mains or tank water into the RO, heater or mix block. Needs anti-clog geometry and a seat that still shuts at low differential pressure.
- DispenseUser-facing flow. Noise, drip-after-close and flow stability matter as much as leak-tightness.
- Drain / flushRO waste or tank drain — usually dirtier water. Orifice and seat decide whether the valve gums up.
- Air / hot-water pathsSome dispensers add air-break or heater circuits. Confirm media before copying a cold-water valve.
How to spec it
- VoltageDC 12 / 24 / 36 V. Keep the operating band at rated ±10–15%.
- Pressure0–1.0 MPa for most RO and mains inlet. State both minimum opening pressure and max static pressure.
- Flow0.3–8.0 L/min. Do not oversize the orifice “to be safe” — drip and water hammer get worse.
- Ports & mountingØ6–Ø15 mm ports; holes 20–50 mm apart. Send the tank boss drawing, not only a photo.
- Life & noise100,000–500,000 cycles; ≤40–60 dB(A) for countertop units.
- Power2–15 W. Lower wattage helps enclosed, always-ready tanks.
Field failures we design against
- Weep after closeSeat damage, debris, or a coil that does not fully pull in at low line voltage.
- No open on a gravity tankPilot valves need a minimum ΔP. Direct-acting is safer on tank-fed dispensers.
- Noise / water hammerOrifice, closing speed and how stiff the mounting is.
- Coil heat in plasticTreat ambient as enclosure air, not kitchen air.
OEM / ODM path
- Brief — boss drawing, voltage, min/max pressure, flow, medium, volume.
- Direct vs pilot — we will not quote a pilot valve for a gravity tank.
- Sample — typically 5–7 working days after the boss is frozen.
- Pilot lot — same tooling and winding as mass production.
FAQ
Can one valve cover inlet and drain?
Only if cleanliness, pressure and leak-rate allow it. Drain water is usually dirtier; most RO platforms keep two SKUs.
Plastic, brass or stainless?
Engineered plastic for cost and scale; brass/SS when pressure, temperature or approvals require it. Name the approval target before freezing the body.
It drips after shut-off. Coil or valve?
Usually the seat, debris, or closing force at the real voltage — not “the coil brand.” We check pull-in at −10/−15% on the manifold.
Dual-flow or integrated plates?
Yes. Send tank or manifold CAD. That is faster than reverse-engineering a photograph.
Send port drawing, voltage, pressure, flow and volume to cici@solenoidcn.com. Hardware: water-purification valves.
Have a drawing or sample?
Send voltage, media, pressure, duty and annual volume. We reply with a DFM note, not a catalogue dump.
Other OEM Applications
Related Industries
Same factory, different circuits. Open another application page if your machine is not the one above.
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Frequently Asked Questions
Professional answers for OEM/ODM and technical requirements from our engineering team.
OEM / ODM
Can you customize voltage and dimensions?
Do you support OEM/ODM projects?
Can you develop based on our drawings or samples?
Technical
What insulation classes are available?
What protection grades are supported?
Can the coils work continuously (100% ED)?
Technical Support
Engineering team ready to assist your project
At a Glance
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Need a Custom Solution?
Our engineering team can help with OEM/ODM projects and technical requirements. Over 20 years of experience in solenoid coil design and manufacturing.
Customization Options
Customization Notes:
Send tank/manifold drawing, voltage, min/max pressure, flow, medium and annual volume. We distinguish gravity-tank vs mains-pressure valves (direct-acting vs pilot). Email: cici@solenoidcn.com