About DERVOS VALVE
China manufacturer of high-temperature, high-pressure valves for power, refining, petrochemical and coal chemical service. Pressure seal and integral forged gate, globe, check and stop-check construction, cast and forged.
Company details
| Field | Value |
|---|---|
| Legal entity name | pending verification As shown on the business licence |
| Founded | pending verification Actual founding year of this company |
| Registered address | pending verification Factory and office address |
| Business licence number | pending verification Unified social credit code |
| Sales e-mail | pending verification |
| Telephone | pending verification With international dialling code |
An explicit note about this domain
valvesmaker.com was previously used by a different company. From 2013 to 2019 it belonged to a hydraulic machinery manufacturer producing directional control spool valves and gear pumps for agricultural and construction machinery. That business is unrelated to DERVOS VALVE in every respect - different company, different products, different people.
We acquired the expired domain because the name describes what we do. We have not inherited, and will not imply, that company's history, certifications, customers, project record or founding date. If you find anything on this site suggesting otherwise, it is an error and we want to know about it.
This paragraph is here because an expired domain with a history is a genuine due-diligence question for a buyer, and it is better answered directly than discovered in an archive.
What we manufacture
High-temperature, high-pressure valves: gate, globe, check and stop-check, in pressure seal and integral forged construction, cast and forged, designed to ASME B16.34 and - for Chinese-standard projects - NB/T 47044. Materials from A105 through F22, F91, F92, WB36 and F347, selected against the duty rather than offered as a single grade.
What we do not do
- Cooling water, compressed air and general utility valves
- Control valves and modulating service
- Ball, butterfly and plug valves
- Stock supply - these are engineered items with real forging and casting lead times
A supplier who covers everything from one factory is usually consolidating other people's product. That is a legitimate business, but a different one, and it should be stated rather than implied.
How this site is written
Four rules, applied throughout:
- Every parameter carries its basis - standard range, typical range, or project-dependent. Nothing is stated more firmly than it can be supported.
- Standards are listed only where they apply, with a statement of what each one governs on that valve.
- Nothing unverifiable is claimed. No service life figures, no zero leakage, no production capacity numbers, no certificates until they can be checked against the issuing body's register.
- Photographs are real or absent. Where a photograph of our own production belongs, there is a marked placeholder describing what should be there - not a stock image or a render.
These rules cost us some polish. They are here because the alternative - a site that reads impressively and cannot be checked - is what most of this category already looks like.