Detailed Product Description

As our key product, dual eccentric flange type butterfly valve has been given continuous improvement and obtained Chinese National Patent(ZL No: 02284270. 5). It has advantages of corrosion-proof, perfect sealing performance and long usage period, being widely used in vessels/containers holding corrosive/non-corrosive liquid, semi/fluid, gas, powder, etc, in a variety of industries such as petroleum, metallurgy, power plant, food, medicine, textile, water supplying/drainage, paper making, ship building, environmental protection, etc.

Design reference:

General design complies with MSS-67-1995

ANSI/AWWA C 504

BS593

DIN3840

Flange connecting complies with ASME/ANSI B16.5-1992

ASME B16. 47-1996

BS4504

DIN2532

Face to face length complies with ASME B16.10-1992

BSEN 558-2

DIN3202

Pressure testing complies with API 598-1998

BS5417

DIN3230

Electrical operated butterfly valve can be sorted into explode-proof type or common type. When placing an order, customers are expected to specify their preferences regarding these respects.

At receipt of customer specified requirements, we can design and manufacture valves with special materials, specifications, pneumatic/hydraulic/pipe-net-suiting operator, which may be beyond this introduction.