françaisService Clients 3000+
Support customized services, low minimum order quantity
Capacities 10,000 tons+
Our annual production volume has been increasing
Get Certified 6+
our unwavering dedication to quality is evident.
Sales countries 100+
Reliable quality, trusted by customers all over the world
Butterfly Valves Manufacturer for Water & Industrial Systems
As an experienced butterfly valve manufacturer, we supply a full range of valves designed for water supply, wastewater treatment, HVAC, and general industrial pipelines.
Stainless Steel Wafer Butterfly Valve
- Specs:DN50-DN1200 (2"-48") PN10/16
- Body:CI/DI/CS/SS Etc.
- Seat:EPDM, NBR, PTFE, VITON
- Face to Face:API609, BS5155, DIN3202, ISO5752
- Application:HVAC, Water Treatment, General Industry.
Lug Type Butterfly Valve
- Specs:DN50-DN1200 (2"-48") PN10/16
- Flange:DIN, BS, UNI, ISO, ANSI, AS, JIS
- Seat:EPDM, NBR, PTFE, VITON
- Face to Face:API609, BS5155, DIN3202, ISO5752
- Application:HVAC, Water Treatment, General Industry.
Double Flange Butterfly Valve
- Specs:DN50-DN1200 (2"-48") PN10/16
- Body:CI/DI/CS/SS Etc.
- Seat:EPDM, NBR, PTFE, VITON
- Mounting Flange:ISO5211
- Application:HVAC, Water Treatment, General Industry.
Vanne papillon à plaquettes
Universal Wafer Butterfly Valves (ANSI/PN/JIS). Cast Iron, Ductile Iron, or SS304/316 with EPDM/PTFE seats. Bi-directional zero leakage for HVAC, water, and industrial fluid control.
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Vanne papillon à cosse
High-Performance Lug Butterfly Valves (ANSI 150/PN10-16). Cast Iron, Carbon Steel, or Stainless Steel. Threaded for dead-end service and downstream removal. Ideal for Oil, Gas, and HVAC.
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Vanne papillon en PTFE
PTFE Lined Butterfly Valves. Fully lined Virgin PTFE seat and disc for superior corrosion resistance. Guaranteed zero leakage. Ideal for aggressive chemicals, Pharma, and Semiconductor processing.
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Vanne papillon de type U
U-Type Butterfly Valves. Compact ISO 5752 design combining flanged stability with wafer space savings. Supports dead-end service with zero movement. Ideal for Water Works, HVAC, and General Industry.
View DetailsChina Butterfly valves manufacturer
As a professional butterfly valve manufacturer and supplier, Union Valve offers full in-house production from raw material casting to precision machining and final assembly. All valves undergo strict inspection and pressure testing before shipment to ensure consistent quality and reliable performance. By working directly with the factory, you avoid intermediaries, reduce sourcing costs, and benefit from shorter lead times and efficient OEM/ODM support for long-term supply projects.
- In-house machining & assembly
- Pressure & sealing performance testing
- Stable production capacity for projects
- Factory audit available
Our certificate
Project case
Wras
ISO 9001
iso45001
TUV
iso14001
EAC
CE
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Butterfly valves Project case
