Class 2500 valves handle the highest pressures in standard process service: hydrogen, ammonia, high-pressure letdown and severe oilfield duty. Most are forged or heavy cast, pressure seal bonnet, with special trims.
Because they are rare and expensive, Class 2500 surplus is reviewed valve by valve. A single sound body with documentation can be a significant transaction.
Review points
What decides the value of asme class 2500 valves
Individual review
These are never priced as a lot. Each valve is assessed on its own.
Documentation
Material and test records are the basis of value.
Trim
Special letdown and anti-cavitation trims are common and add value.
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 a single Class 2500 valve?
Yes. At this level, one valve can justify a pickup.
What documentation is needed?
Material certificates, pressure test records and any original data sheet.
Are damaged bodies of interest?
Rarely. At this class, body integrity is the whole value.