pipe industrial valves

Industrial valve is one kind of mechanical device which is used in various industrial pipeline systems to connect and cut off the mediums. Which includes soft seal gate valves, hard seal gate valves, DIN F4/F5 gate valves, center line wafer butterfly valves, flange butterfly valves, lug type butterfly valve, bellows globe valves, DIN globe valves, swing check valves, wafer type check valves, lift check valves, soft seal ball valves, hard seal ball valves, two piece ball valves, three piece ball valves, grooved fire protection valves, hydraulic control valves,etc. According to different mediums, and different real working conditions, the different type of industrial valves are used, and different driving device is used, now lets talk about the common driving method adopted in industrial valves: 

1. Manual driving: with the help of handwheel, handle, lever, or sprocket,etc, the industrial valve is driven by manpower, and when transmitting large torque, it is equipped with deceleration devices such as worm gear, gear, and chain. ( code for worm gear transmission is 3; code for bevel gear transmission is 5; code for spur gear transmission is 4;) 

resilient seated handle lever butterfly valves
resilient seated handle lever butterfly valves
resilient seat butterfly valve with gear box
resilient seat butterfly valve with gear box

2. Electric driving: this kind of industrial valve is driven by a motor or other electrical device( code for electric power transmission is 9;)

electrical butterfly valve
electrical butterfly valve

3. Hydraulic driving: this kind of industrial valve is driven by water or oils;(code for hydraulic transmission is 7;)

4. Pneumatic driving: this industrial valve is driven by compressed air;(code for pneumatic transmission is 6;)

pneumatic butterfly valves
pneumatic butterfly valves

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