A butterfly valve rotates a disc on a shaft inside the bore to control or isolate flow. It is compact, light and inexpensive relative to a gate valve of the same size, which is why it is the default choice for large water, air and low-pressure process lines.
Cooling water, fire protection, HVAC, aeration, low-pressure chemical and food service all run on butterfly valves. Because they are inexpensive, plants over-buy during construction and never reconcile the spares, so new-in-box butterfly valves are one of the most common surplus items we purchase.
We buy butterfly 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 | Wafer pattern, lugged pattern, double flanged, Resilient seated EPDM and nitrile, High-performance double offset, Triple offset metal seated |
|---|---|
| Typical service | Cooling water, HVAC and fire protection, Aeration and wastewater |
| What we look at | Pattern, size, body and disc material, liner material, operator type and whether the valve is new or used. For used valves we ask about liner condition and shaft play, because those decide whether it is a rebuild or a spare. |
| What to keep | Keep the operator, the disc and the liner. Store them with the disc slightly open so the liner is not compressed against the seat for years. A butterfly valve stored closed for a decade will often have a permanently set liner. |
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 the operator, the disc and the liner. Store them with the disc slightly open so the liner is not compressed against the seat for years. A butterfly valve stored closed for a decade will often have a permanently set liner.
Where they come from
Industries and services
- Cooling water
- HVAC and fire protection
- Aeration and wastewater
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.
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Read →Questions sellers ask
Are used butterfly valves worth buying at all?
Yes, particularly above six inch and in higher-grade bodies. A twelve-inch lugged butterfly valve in stainless or ductile iron is a real item. Small resilient-seated valves in quantity are also worth reviewing as a lot.
I have two hundred new butterfly valves in original boxes. Will you take them?
That is a straightforward purchase. Send the sizes, patterns, liner materials and quantities, plus one photograph of a label. New-in-box stock with consistent part numbers is the easiest material to price.
What if the liner is perished from storage?
It reduces the value but does not eliminate it. The body, disc and shaft still have value, and liners are replaceable. Tell us the storage conditions.