Class 1500 valves serve high-pressure process, boiler feedwater, wellhead and severe service applications. They are usually forged or heavy cast, pressure seal bonnet, and specified with material certification.
At this class, even a valve needing a full rebuild has value, because the body and bonnet are expensive and long-lead. Documentation is the difference between a confident offer and a cautious one.
Review points
What decides the value of asme class 1500 valves
Body and bonnet
The castings and forgings carry most of the value, even with worn trim.
Certification
Material test reports are essential at this level.
Pattern
Globe, gate, check and angle patterns all appear in high-pressure service.
Selling it
How to present the lot
Count by size and pattern, and note the marking on the body. If you have certificates, include them; if you do not, say so rather than implying they exist.
Do not separate trim from bodies to sell them individually unless the trim is clearly identifiable and valuable on its own. In most cases the assembly is worth more together.
Questions sellers ask
Do you buy Class 1500 valves needing rebuild?
Yes. The body is the value and rebuilders want it.
What about wellhead valves?
Yes, when they are identifiable and documented.
Are these bought individually?
Often, yes. A single Class 1500 valve can justify a pickup.