The difference between electric butterfly valve and pneumatic butterfly valve

The difference between Electric Butterfly Valve and Pneumatic Butterfly Valve Imported Globe Valve , imported pressure reducing valve, imported regulating valve, imported electromagnetic valve, imported pneumatic Butterfly Valve Electric control butterfly valve (Electriccontrolbutterflyvalve) is one of the most commonly used valve types in industrial pipeline applications. The small size, low material usage, light weight, and large diameter of the butterfly valve are more economical than other valves. The Electric Actuator rotates by 90° and slow-opening, so it is easy to operate. At the same time, the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, and when the opening degree is between about 15° and 70°, it can be sensitive. The flow control, so large-caliber flow regulation, butterfly valve has a greater advantage. Not suitable for use in process media with particles and high temperatures.

Pneumatic Control Butterfly Valve, PneumaticcontrolButterflyvalve, also known as imported pneumatic butterfly valve regulator type, consists of the United States shield VTON pneumatic actuator and metal seal (or soft seal) butterfly valve body, equipped with Pneumatic Valve positioner, input control signal (4-20mADC or 1-5VDC) The butterfly valve that can control the operation of the pressure, flow and temperature of the medium. The structure is simple and compact, easy to process, easy to make large diameter, with self-cleaning effect, small resistance coefficient and large circulation capacity. Pneumatically controlled butterfly valves are suitable for the regulation of fluids in suspended particles and fluids in thick and turbid fluids.

Features of electric butterfly valve â–  Sealed valve seat water line design, flat design of valve plate sealing surface, completely avoiding the phenomenon of stuck position caused by long time when the pneumatic valve is not opened â–  At the middle hole of the valve plate, adopt ball type friction surface design, torque Smaller, better sealing â–  Valve seat without backrest design, lighter torque, but also easy for users to replace the valve seat â–  Flange for clamping hole connection for a variety of standard pneumatic butterfly valve features 1, pneumatic butterfly valve structure is simple, compact, Lightweight, easy to install and remove, easy to maintain;

2. The valve body of pneumatic butterfly valve adopts the stainless steel elastic metal hard seal structure. It has excellent sealing performance both at high temperature and low temperature.

3. The three-dimensional eccentricity of the pneumatic butterfly valve is rigorously calculated. The seal ring and the butterfly plate have almost no friction and long service life, and they have more closed and tight functions.

4. Cobalt-based hard alloy is used for the sealing surface of butterfly valve of pneumatic butterfly valve. The sealing surface is wear-resistant and has long service life.

5, pneumatic butterfly valve structure is unique, "switch" only need to turn the valve stem to complete 90 °. The operation is flexible, convenient, labor-saving, not affected by the pressure of the medium, and the sealing performance is reliable;

6, pneumatic butterfly valve body high temperature, low temperature, corrosion resistance.

Venturi Injector is also called water jet. It is composed of nozzle, suction chamber and diffuser. It is a kind of multi-purpose aeration method developed by using the principle of negative pressure of jet. The unique design of mixing chamber, the strong mixing of water and air, makes the mixing uniform and complete, and produces many and delicate bubbles. The oxygen conversion rate of traditional aeration equipment is generally less than 10%, and the oxygen conversion rate of jet aeration equipment can reach more than 25%.

Venturi Injector

PVC Venturi Injector, PVDF Venturi Injector, Plastic Venturi Injector

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