Pneumatic Flange Butterfly Valve

Pneumatic Flange Butterfly ValveClick to view the big picture
Short Description
 Model No.: D643H    Hits: 1808
China Flanged Butterfly Valve manufacturer Xinhai offers Carbon Steel, Stainless Steel Pneumatic Flange Butterfly Valves, GB/T13927-92, DN50-2000.

Key Specifications / Features

Pneumatic flange butterfly valve, based on imported advanced technique, adopts fine J shape elastic seal ring and triple offset multilayer metal hard sealing structure. Applicable temperature belows 425℃. It is widely used to regulate flow or closure medium in metallurgy, petroleum, power and other industries. The valve utilizes triple offset sealing structure. Valve seat and disc made of stainless steel with different hardness, have good corrosion resistance and long service life. The valve has bi-directional sealing, according to GB/T13927-92 pressure test standard.
 
Characteristics of pneumatic flange butterfly valve
1. The valve adopts triple offset sealing structure which cannot cause abrasion to valve seat and disc, having good seal.
2. Seal ring made of stainless steel, combines with the advantages of metal hard seal and elastic seal. No matter under low or high temperature, seal ring has good seal.
3. Disc overlay with STL, has abrasion resistance and long service life.
4. Large size butterfly valve, utilizing lattice structure, has high strength, large flow area and small flow resistance.
5. The valve has bi-directional seal. It can be installed at any position without the limitation of medium flow and space.
6. Actuating device adopts multistage installment which is convenient to use.
 
Technical parameter
Nominal diameter DN(mm) 50~2000
Nominal Pressure PN(MPa) 0.6 1.0 1.6 2.5
Seal test(MPa) 0.66 1.1 1.76 2.75
Strength test(MPa) 0.9 1.5 2.4 3.75
Applicable temperature Carbon steel: -29℃~425℃; stainless steel: -40℃~650℃
Applicable medium Water, air, gas, oil and weak corrosive fluid
Leakage rate GB/T13927-92
Driving mode Manual, worm gear, pneumatic, electric

Products Related to Pneumatic Flange Butterfly Valve

NO.2013 Valves catalog download
View and download valve product literature, sales brochures and more.
read more >>
News & Events
2017.08.30
What are Thread Valves?
A thread valve is the valve with the thread and can be classified into the internal thread valve and the external thread valve. This kind of valve is connected to the pipeline with the threaded connec...
2017.08.23
An Introduction of Swing Check Valves
A check valve is divided into the swing check valve (rotating around its center of gravity) and the lift check valve (moving along the axis). The check valve is one kind of the automatic valve, mainly...
2017.07.19
2017 China (Zhengzhou) International Water Equipment and Technology Exposition
Event: 2017 China (Zhengzhou) International Water Equipment and Technology Exposition Venue: Central China International Expo Center (No.210, Zheng Bian Road, Zhengzhou City, Henan Province) Date: 201...
2017.07.10
Comparisons of Pneumatic Ball Valves and Electric Ball Valves
(1) Pneumatic ball valves The pneumatic ball valve consists of the ball valve and the pneumatic actuator. It generally needs to be used in conjunction with accessories including the magnetic valve, ai...