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Pneumatic butterfly valve

Pneumatic butterfly valve

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Butterfly Valve
Describe
Product Usage
 
Pneumatic multi-level three-eccentric clip-on hard seal butterfly valve series, is a long-life, energy-saving butterfly valve. The structure is designed by three-dimensional knitting principle. The valve seat adopts multi-layer structure compatible with hard and soft seals, with exquisite processing and advanced technology. This product consists of valve body, butterfly plate, multi-level valve seat, valve stem, transmission mechanism and other major components. Therefore, it is widely used in pipelines of corrosive media such as metallurgy, electric power, petroleum, chemical, air, gas, combustible gas, and water supply and drainage.
 
Features
 
Because the butterfly valve of this product adopts the three-dimensional eccentric principle design, the space movement track of the sealing surface is idealized, the sealing surfaces have no friction, no interference, and the sealing material is properly selected, so that the sealing and corrosion resistance of the butterfly valve are made. High temperature resistance and wear resistance are reliably guaranteed. Its main features are as follows:
 
1. The opening torque is small, flexible and convenient, saving energy and energy.
 
2, three-dimensional braided structure, so that the butterfly plate is tighter and tighter, its sealing performance is reliable, and no leakage.
 
3, high pressure, corrosion resistance, wear resistance, long service life, etc.
 
Product performance standards
 
Design standard: GB/T12238-1989; JB/T8527-1997
 
Flange connection size:
 
 GB/T9113.1-2000; GB/T9113.2-2000
 
 GB/T9115.1-2000; GB/T9115.2-2000
 
Structure length: GB/T12221-1989
 
Pressure test: GB/T13927-1992; JB/T9092-1999
 
Product organization
 
The new series of GT-type pneumatic actuators are double-acting and single-acting (spring-return), gear transmission, safe and reliable; large-diameter valves adopt series AW pneumatic actuator fork-type transmission, with reasonable structure and large output torque. Double acting and single acting
 
1. Gear type double piston, large output torque and small volume.
 
2. The cylinder is made of aluminum and gold materials, which is light in weight and beautiful in appearance.
 
3. Manual operation mechanism can be installed at the top and bottom.
 
4. The rack-and-pinion connection can adjust the opening angle and rated flow.
 
5. The actuator can be equipped with electric signal feedback indication and various accessories for automatic operation.
 
6, IS05211 standard connection provides convenience for the installation and replacement of the product.
 
7. The joint screws adjusted at both ends can make the standard product have an adjustable range of ±4° at 0° and 90°. Ensure synchronization with the valve.
 
The main technical parameters
 

Nominal diameter

DN(mm)

50~2000

50~500

Nominal pressure

PN(MPa)

0.6

1

1.6

2.5

4

test pressure

Strength test

0.9

1.5

2.4

3.75

6

Seal test

0.66

1.1

1.76

2.75

4.4

Gas seal test

0.6

0.6

0.6

0.6

0.6

Leakage rate

<0.1×DNmm3/s (in accordance with GB/T13927-92 standard)

proper temperature

Carbon steel: -29 ° C ~ 425 ° C stainless steel -40 ° C ~ 600 ° C

Applicable medium

Air, water, steam, gas, oil, acid, alkali, salt with weak corrosive medium, etc.

Drive form

Worm and worm gear drive, gas drive, electric drive