Valves · Supply, coils and repair
Solenoid valves, control valves and positioners: supply and repair in India
Star Automations sources and supplies solenoid valves (also called magnetic valves), solenoid coils, control valves, valve positioners and pneumatic actuators in India, and repairs positioner and actuator electronics. Send the make, model code, voltage and the media, and we confirm availability.
Star Automations is an independent multi-brand repair and supply company and is not an OEM service centre.
How solenoid and control valves work in a loop, and what to send
The positioner moves the valve to the position the controller asks for. The solenoid valve switches the air for on/off duty or a trip action.
Generic loop. Your actuator and piping may differ.
- Make and modelFrom the valve or coil label
- Coil voltage24 V DC, 110 V AC, 230 V AC and so on
- Media and pressureAir, water, steam, gas or oil
- A photoLabel and, if possible, the fitted valve
What we supply
Solenoid valves
Direct-acting and pilot-operated, 2/2, 3/2 and 5/2 way, for air, water, steam, gas and oil. Brass, stainless steel and plastic bodies; 12 V and 24 V DC, 24 V, 110 V and 230 V AC.
Solenoid coils and seal kits
Replacement coils matched to the valve and voltage, and seal or repair kits where they exist for the model.
Control valves and spares
Globe, ball and butterfly control valves with pneumatic or electric actuators, plus trims, seals and spares by make and model.
Positioners and I/P converters
Smart and electro-pneumatic valve positioners and current-to-pressure converters. See Fisher DVC6200.
Pneumatic actuators and air sets
Diaphragm and piston actuators, NAMUR solenoid valves for actuators, limit switch boxes, filter regulators and air-preparation units.
Instruments on the same line
Transmitters, flow meters and controllers. See Yokogawa spares and instrumentation repair.
Makes we source on request
ASCO, SMC, Festo, Bürkert, Parker, Norgren, Danfoss, Fisher, Samson, Siemens, ABB and Yokogawa, among others. Availability is confirmed for each part number. If your make is not listed, send the nameplate photo and we check.
Solenoid valve, magnetic valve, electromagnetic valve: the same device
All three names describe a valve switched by an electromagnet. What differs is the construction and the duty, which is why the nameplate details matter when you order a replacement.
| Check | Why it matters |
|---|---|
| Function: normally closed or normally open; 2/2, 3/2 or 5/2 | Decides the port layout and the fail-safe position |
| Media and temperature: air, water, steam, gas, oil, chemicals | Decides the body material and the seal material (for example NBR, EPDM, FKM or PTFE) |
| Pressure range, including the minimum differential | Pilot-operated valves need a minimum pressure difference to open; direct-acting valves have a maximum |
| Port size and flow (Kv or Cv) | An undersized valve starves the actuator or the process |
| Voltage and AC or DC | A coil on the wrong voltage overheats or does not lift the plunger |
| Duty cycle | Valves energised continuously need a suitable coil |
| Hazardous-area approval | Required in classified areas |
| Mounting: inline, manifold or NAMUR | Decides whether the replacement fits without pipework changes |
Common solenoid valve faults and what to check first
| Symptom | Likely cause | Check first |
|---|---|---|
| Valve does not open | Burnt coil or no voltage; pressure below the minimum differential; blocked pilot orifice | Voltage at the coil, coil resistance, supply pressure |
| AC coil hums or buzzes | Debris or wear on the plunger, broken shading ring, low voltage | Supply voltage and a clean plunger and core |
| Coil overheats or burns | Wrong voltage, continuous duty on a coil not rated for it, moisture, high ambient temperature | Nameplate voltage against supply, enclosure sealing |
| Valve leaks when closed | Worn or hardened seal, dirt on the seat, seal material not suited to the media | Strainer, seal condition, seal material |
| Valve does not close or sticks | Debris holding the plunger, failed spring, differential pressure too high for a direct-acting valve | Fit a strainer, check the spring and the pressure rating |
| Slow or chattering response | Low supply pressure, restricted line, dirty media | Supply pressure, filter, line size |
How we help
Supply
Valves, coils and kits by make and model, with the condition stated in the quote. Warranty terms are stated on each quotation.
Repair
Positioner and actuator electronics, and replacement coils and seal kits for valves where they are available. See valve actuator repair.
Obsolete valves
For discontinued valves we look for the same make and model from surplus stock first, then a suitable alternative that you approve. See obsolete spares.
What to send
- Make, full model code and a photo of the nameplate or coil label
- Voltage and whether it is AC or DC
- Media, temperature and operating pressure
- Port size and connection type
- Quantity and delivery location
- For a fault, what the valve does or does not do
Send the valve details
Name, contact and the nameplate photo are enough to start.
Message received
Our team replies by email or WhatsApp with the next step. For anything urgent, WhatsApp +91 97866 22233.
Solenoid valve and control valve questions
What is a magnetic valve?
A magnetic valve is another name for a solenoid valve, also called an electromagnetic valve. A coil creates a magnetic field that moves a plunger to open or close the flow path, so the valve is switched by an electrical signal.
Do you supply solenoid valves in India?
Yes. We source solenoid valves by make and model for air, water, steam, gas and oil service, and the condition is stated in the quote. Send the make, model code, voltage and quantity and we confirm availability.
Are you an authorised distributor for ASCO, SMC, Festo, Bürkert or Parker?
No. Star Automations is an independent multi-brand repair and supply company and is not an OEM service centre. We source parts by make and model and confirm availability for each part number.
Can I buy only the coil, not the whole valve?
Often yes. Send a photo of the coil label with the make, model, voltage and AC or DC rating, and the valve model if you have it. A coil must match the valve and the supply voltage.
Do you repair solenoid valves?
We fit replacement coils and seal kits where they are available for the model. Where no kit exists, we supply a replacement valve of the same make and model, or a suitable alternative that you approve.
How do I choose the right solenoid valve?
Check the function (normally closed or open, 2/2, 3/2, 5/2), the media and temperature, the pressure range including the minimum differential, port size, voltage, body and seal material, duty cycle and any hazardous-area approval. Our selection table above lists each point.
Do you supply control valves and positioners?
We source control valves, valve spares and positioners by make and model, and we repair smart positioner and actuator electronics. For a new valve that needs sizing, send the data sheet and we quote what we can supply.
Can you supply solenoid valves for steam or hazardous areas?
Send the media, temperature, pressure and the area classification. We quote only valves whose rating matches the duty.
What should I send for a quote?
The make, full model code and nameplate photo, the voltage, the port size, the media and the operating pressure, and the quantity. For a fault, add what the valve does or does not do.
Do you also supply the transmitters and flow meters on the same line?
Yes. See our page on Yokogawa spares, repair and supply, and our instrumentation repair page for transmitters, flow meters and controllers.