Product Name:double eccentric butterfly valve soft sealing flange
Nominal diameter:DN 50-DN 3600 ( 2” – 144” )
Nominal pressure:PN 2.5-PN 50 ( 86Lb – 300Lb )
Design standards:AWWA C504 / API 609B / EN593 (BS5155&DIN3354)
Structural length:AWWA C504 / API 609B / EN558-1 Series 13 &14 (BS5155&DIN3202)
Flange connection:AWWA C207 / ASME B16.5 B16.47 B16.1/ EN1092-1  EN1092-2
Product Features
– Double eccentric disc design
– Main material ductile iron GGG40 GGG50, steel, stainless steel, alloy steel
– Epoxy powder thermal spray or two epoxy coating
– Operating handle, worm gear, electric, pneumatic, hydraulic or electro-hydraulic linkage
Water, sea water, oil, gas, corrosive media


Gear, Electric, Cylinder, Pneumatic, Hydraulic, Hand wheel, Chain wheels

All valves are designed to comply with the requirements of ASME B16.34, and the ASME as well as customers’ requirements as applicable.

Quality Assurance (QA):
Every step from procurement through production, welding, assembly, testing, and packaging is in accordance with quality programs and procedures (ASME Section III manual and ISO 9001 manual).

Quality Control (QC):
The QC is responsible for all aspects of quality, from receiving of material to control of machining, welding, nondestructive examination, assembly, pressure testing, cleaning, painting, and packaging.

Pressure Testing:
Gangye valve is pressure tested in accordance with ASME B16.34, API 598, or special customers’ requirements as applicable.