The best quality and faith bring us the good market, such as USA, CANADA, BRAZIL, AUSTRALIA, UK, GERMANY, ITALY, SPAIN, TURKEY, ALGERIA, DUBAI, RUSSIA, UKRAINE, SINGAPORE, MALAYSIA etc. “Made in DUNHUI” in many Countries.

“DUNHUI” is your correct choice. Welcome to visit 

1.Flange sealing butterfly valve

 2.Valve production process and main product display

Technical Specifications: 

Design: EN593 
Face to face: EN558-1

Flange drilling: EN1092 
Upper flange connection: ISO 5211

Main Parts and Material:

Main Dimensions:

Personnel station:

Professional salesmen, and 5 Engineers, More than 10 inspectors. 

Quality and Safety:

We have a strict and complete quality control system, The enough inspectors to ensure that each product can meet the quality requirements of customers. We do the final inspection in own factory with ISO 9001:2008.

 Location:

DUNHUI has a convenient location at the city’s exporting business zone, Dongli District. We are only 19 km to Tianjin International Airport, and very close to major highways, and Tianjin Port. We look forward to work with your business!