Pneumatic flanged butterfly valve, butterfly valve with pneumatic actuator. Pneumatic actuators perform relatively fast, and do not require workers to personally, which saves human resources and time to a large extent.
The main advantages of the pneumatic flange butterfly valve are simple structure, small size, light weight and low cost. The characteristics of the pneumatic disc valve are particularly remarkable. It is installed in the high-altitude dark passage, and is controlled by the two-position five-way solenoid valve, and the flow medium can also be adjusted. The fluid resistance is small, and the effective circulation area is large when the large and medium-diameter pneumatic disc valve is fully opened, and the opening and closing is quick and labor-saving. The disc is rotated by 90 degrees to complete the opening and closing, because the medium force of the disc plate on both sides of the rotating shaft is nearly equal. The generated torque is opposite in direction, so the opening and closing torque is small, and a good seal can be achieved under low pressure. The sealing material of the disc valve is nitrile rubber, fluororubber, edible rubber, and PTFE lining, so the sealing performance is good, among which the hard sealing disc The valve is a soft and hard laminated metal sheet with the advantages of a metal hard seal and an elastic seal, and has excellent sealing performance at low temperatures.
Pneumatic flange butterfly valve structure working principle applicable to environmental analysis
The butterfly valve's disc is mounted in the diameter direction of the pipe. In the cylindrical passage of the butterfly valve body, the disc-shaped disc rotates around the axis, and the rotation angle is between 0° and 90°. When the rotation is 90°, the valve is fully open.
The butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. Moreover, it can be quickly opened and closed by only rotating 90°, and the operation is simple, and the electric valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the disc is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is small, so it has better flow control characteristics. The butterfly valve has two sealing types: a spring seal and a metal seal. Elastomeric sealing valve, the sealing ring can be mounted on the valve body or attached to the periphery of the disc.
Valves with metal seals generally have a longer life than elastomerically sealed valves, but are difficult to seal completely. Metal seals can accommodate higher operating temperatures, while elastomeric seals have temperature-limited defects.
If a butterfly valve is required for flow control, the main choice is the correct size and type of valve. The structural principle of the butterfly valve is especially suitable for making large diameter valves. Butterfly valves are widely used not only in general industries such as petroleum, gas, chemical, and water treatment, but also in cooling water systems for thermal power plants.
Stainless steel pneumatic butterfly valve working principle
The stainless steel pneumatic butterfly valve is opened and closed with a circular disc rotating with the valve, so that the pneumatic valve that realizes the action is mainly used as a shut-off valve, and can also be designed to have the function of adjusting or stepping valve and adjusting. The use of low pressure large and medium diameter pipes is increasing.
The main advantages of the disc valve are simple structure, small size and light weight, low cost, and the characteristics of the disc valve are particularly remarkable. It is installed in the high-altitude dark passage, and is controlled by the two-position five-way solenoid valve, and the flow medium can also be adjusted. The fluid resistance is small, and the effective circulation area is large when the large and medium-diameter pneumatic disc valve is fully opened, and the opening and closing is quick and labor-saving. The disc is rotated by 90 degrees to complete the opening and closing, because the medium force of the disc plate on both sides of the rotating shaft is nearly equal. The generated torque is opposite in direction, so the opening and closing torque is small, and a good seal can be achieved under low pressure. The sealing material of the disc valve is nitrile rubber, fluororubber, edible rubber, and PTFE lining, so the sealing performance is good, among which the hard sealing disc The valve is a soft and hard laminated metal sheet with the advantages of a metal hard seal and an elastic seal, and has excellent sealing performance at low temperatures.
Pneumatic flange butterfly valve - Technical parameters Product model: D641X-16 Product specifications: DN50-DN600 Nominal pressure: PN1.0/1.6Mpa Applicable medium: water, gas, oil, etc. Applicable temperature: -23～121°C
The main products of Yongjia County Tezhong Valve Factory include gas butterfly valve, three eccentric butterfly valve, three eccentric multi-layer metal hard sealing butterfly valve, ventilation butterfly valve, metal hard sealing butterfly valve, flange butterfly valve and other products. You are welcome to call us.
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