An angle valve has its outlet at ninety degrees to the inlet, which removes a fitting and turns the flow in one body. The pattern is common where a line must change direction at a control or isolation point.
Ammonia and urea plants, high-pressure letdown stations, boiler and header drains and utility stations use angle valves. In nitrogen plants they are often the standard letdown valve, which makes them a distinctive surplus item in the Louisiana corridor.
We buy angle 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 | Forged and cast steel bodies, Globe and needle trim patterns, High-pressure letdown designs, Ammonia and urea service alloys |
|---|---|
| Typical service | Ammonia and urea, High-pressure letdown, Boiler drains |
| What we look at | Body material, class, trim type, end connections and the original service. We ask whether the valve was a standard pattern or a special trim, because that decides the resale audience. |
| What to keep | Keep the valve complete and keep the tag. Angle valves are often custom-trimmed for a specific letdown duty, so the data sheet or tag is worth more than usual. |
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 valve complete and keep the tag. Angle valves are often custom-trimmed for a specific letdown duty, so the data sheet or tag is worth more than usual.
Where they come from
Industries and services
- Ammonia and urea
- High-pressure letdown
- Boiler drains
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 ammonia service angle valves?
Yes, particularly in the Louisiana and Alabama nitrogen corridors. Alloy bodies and special trims are the most interesting.
Are angle valves harder to sell than globe valves?
They have a narrower audience, but the right buyer values them. Documentation helps.
What if the trim has been replaced?
Tell us. A replaced trim with a documented material is fine; an undocumented one is a question mark.