To choose a solenoid valve, confirm the medium first, then match valve function, pressure, temperature, port size, body material, seal material and coil voltage. For RFQ review, buyers should also provide photos, old model numbers, quantity, working conditions and installation constraints.
This guide is written for OEM equipment buyers, maintenance teams and distributors preparing a solenoid valve inquiry for Kailing.
Start with the medium and valve function
The medium decides the basic valve construction. Air, water, oil and steam can require different body materials, seal materials and temperature ratings. Buyers should also confirm whether the circuit needs normally closed, normally open, 2/2, 3/2 or 5/2 valve logic.
Confirm pressure, temperature, body and seal
Pressure and temperature should be checked together with the body and seal package. Brass, stainless steel, engineering plastic, NBR, EPDM and PTFE options should not be treated as interchangeable. Steam and higher-temperature service need extra confirmation before quoting.
Check port size, flow and installation space
Port size should match the pipe or pneumatic circuit, but flow demand and installation space also matter. Send thread size, mounting photos and space limits when replacing an old valve.
Match voltage and coil requirements
Common coil options include DC 12 V, DC 24 V, AC 110 V and AC 220 V, but buyers should also confirm frequency, connector type, duty cycle and whether the application requires continuous energizing.
RFQ checklist for Kailing review
For faster review, send the medium, pressure, temperature, port size, voltage, valve function, body or seal preference, old model number, photos, quantity and target delivery. If drawings or samples are available, include them with the inquiry.
| Parameter | Value |
|---|---|
| Medium | Air, water, oil, steam or another confirmed fluid. |
| Valve function | Normally closed, normally open, 2/2, 3/2 or 5/2 according to circuit logic. |
| Port and flow | Thread size, flow requirement, mounting direction and installation space. |
| Material and seal | Body material and seal material matched to medium, temperature and pressure. |
| Electrical | DC 12 V, DC 24 V, AC 110 V, AC 220 V, connector type and duty cycle. |
| RFQ data | Quantity, drawings, photos, old model, target delivery and packaging needs. |
Frequently Asked Questions
- FAQ Can one solenoid valve work for air, water, oil and steam?
No. The medium affects body material, seal material, coil temperature and pressure rating. Buyers should confirm the exact medium before asking for a quote. - FAQ What is the first detail to send for a replacement solenoid valve?
Send the old model number if available. If not, send clear photos, port size, voltage, medium, pressure and installation space. - FAQ Should buyers choose normally closed or normally open?
Normally closed is common when the circuit should stop flow without power. Normally open is used when the circuit should remain open without power. The machine safety logic should decide this. - FAQ Can Kailing review OEM or custom solenoid valve requirements?
Yes. Buyers can send drawings, sample photos, model requirements, packaging needs, quantity and target market information for review.
Need a quotation?
Send the page link, quantity, drawings and working conditions to Kailing for review.