About DemoFlow Valve
DemoFlow Valve Co., Ltd. was founded in Wenzhou, China's valve capital, and has grown into an export-focused manufacturer serving distributors and EPC contractors worldwide.
Our Mission
Reliable, fully tested valves at factory-direct prices, with engineering support that understands your application.
Our Team
Our team combines experienced valve engineers, QC inspectors and an export sales team that works in your time zone.
20+Years of manufacturing
65+Export countries
32,000m² factory
45,000 pcsMonthly capacity
Factory, Production & Quality Control
Our 32,000 m² plant covers machining, assembly, painting and testing under one roof, so we control quality and lead time end to end.
- CNC machining centres for bodies, balls and stems
- In-house hydrostatic and pneumatic test benches up to 6,000 psi
- Spectrometer material checks on every casting batch
- Third-party inspection welcome (SGS, BV, TÜV)
Certified for Global Projects
Our quality system and products are certified for oil & gas, potable water and EU pressure equipment markets.
- ISO 9001:2015
- API 6D
- CE (PED 2014/68/EU)
- WRAS
Tell Us What You Need
Share size, pressure class, media and quantity. A valve engineer replies within 24 hours.
- ✉ sales-web@demoflow-valves.example
- ☎ +86 577 0000 0000
- ⌂ No. 88 Valve Industrial Park, Longwan District, Wenzhou, Zhejiang, China