A solenoid valve uses an electromagnetic coil to move a plunger that opens or closes a small orifice, often piloting a larger valve. It is the standard electrical interface between a control system and a fluid.
Packaging lines, analyser systems, water treatment, burner trains and pneumatic panels all use solenoid valves. Plants hold boxes of them, often with obsolete voltages or discontinued coil types.
We buy solenoid valves in any quantity — single items, mixed pallets or whole cribs, including valves that need repair and assemblies that are missing parts. We do not require a clean inventory before reviewing a list.
| Common patterns | Two-way, three-way and four-way, Direct acting and pilot operated, Brass, stainless and plastic bodies, Normally open and normally closed |
|---|---|
| Typical service | Packaging and OEM machines, Analyser systems, Water treatment |
| What we look at | Part number, voltage, body material, orifice size and whether the item is new. For used valves we ask about coil condition and whether they were functional when removed. |
| What to keep | Keep them in their boxes with part numbers. A loose solenoid valve with no marking is nearly impossible to identify and nearly impossible to sell. |
Patterns and variants
What turns up most often
Variants matter because they change the buyer pool. A standard pattern sells to a rebuilder or a plant with the same service; a specialised trim sells to a much smaller group but often at a higher price. If you are unsure which variant you have, the nameplate or the trim marking will usually say.
Before it leaves site
How to protect the value
Keep them in their boxes with part numbers. A loose solenoid valve with no marking is nearly impossible to identify and nearly impossible to sell.
Where they come from
Industries and services
- Packaging and OEM machines
- Analyser systems
- Water treatment
Most of the surplus we see comes from plants that have replaced equipment for a reason that has nothing to do with the valve: a unit was re-rated, a line was re-piped, a control loop was upgraded or a project was re-scoped. The valve is simply the part that has to move.
Related patterns
Other valve types
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Read →Questions sellers ask
Do you buy obsolete voltages?
Often yes, because somebody still runs that voltage. Send the part numbers and quantities rather than discarding them.
What quantity makes it worthwhile?
A box of twenty or more is usually worth a conversation. A single used solenoid is not.
Do you take mixed brands?
Yes, as a lot. Consistency helps but is not required.