The PP Butterfly Valve is made of PVC/PP material, which is resistant to acid and alkali corrosion. The working principle of the PP Butterfly Valve is the same as that of the PP  electric air valve, except that the electric actuator is changed to a pneumatic actuator, and the air pipe is controlled by a third-party plate solenoid valve. The switch realizes the opening and closing of the PP Butterfly Valve.

PP Butterfly Valve is suitable for application environments with explosion-proof requirements such as chemical plants and laboratories. Used in PVC/PP ventilation duct system, connected with PVC/PP air duct. It is used for exhaust control of corrosive gas, corrosion resistance and acid resistance. Alkali and PVC/PP plastic manual air valves have complete specifications, and are equipped with PVC/PP air ducts, elbows, tees, and reducers to form a complete PVC/PP ventilation duct system. The pneumatic actuator of the PVC/PP plastic manual air valve can be selected according to the specifications of the air valve torque.

The so-called PP pipe actually refers to the material made of polypropylene, which is mainly used in the indoor cold and hot water supply system of buildings. Compared with other materials of pipes, it has good advantages:

1. No corrosion: PP duct valve can withstand the PH value in a wide temperature range, ranging from 1 to 14 high acid and alkali corrosion concentrations.

2. Wear-resistant and non-scaling: PP pipe valves and pipe fittings have a uniform and smooth inner walls, with low flow resistance and no scaling.

3. Reduce vibration and noise: PP pipe valve has excellent sound insulation performance, which can significantly reduce vibration and noise caused by liquid flow.

4. Anti-freeze cracking: PP material has excellent elasticity so that the pipes and pipe sections can expand with the frost heaving liquid without cracking. 5. Anti-condensation, low heat loss: PP material is a poor thermal conductor, reducing condensation and reducing heat loss.

10. Simple installation: PP pipe valve is light in weight, easy to install and operate, and has weldability.

It is mostly used in cold air or hot air gas pipelines in ventilation and environmental protection projects. The specific industries are chemicals, building materials, power stations, glass products, etc. The sealing ring of the electric air valve is tightly processed with the same high-strength material as the valve body, which has good stability. It also has the advantages of simple structure, small operating torque and light weight, and the characteristics of rapid opening and closing, flexible actions, small operating torque, and large flow capacity are also one of the reasons for the good response of users. It can be applied to the control and adjustment of dust, flue gas, air, and fluids containing suspended particles and thick and turbid and slurry fluids, so it can be regarded as a powerful and practical component in industrial control components.

This valve is made of the same material as the valve body and processed into a sealing ring, which adopts electric or pneumatic transmission. The applicable temperature depends on the material selection of the valve body, and the nominal pressure is ??0.6MPa. Generally, it is suitable for industrial, metallurgical, environmental protection, and other pipelines for ventilation and media flow adjustment. Its main features are:

1. Novel and sound design, unique structure, lightweight, and rapid opening and closing.

2. Small operating torque, convenient operation, labor-saving and dexterous.

5. Use suitable materials to meet the requirements of low, medium and high medium temperatures and corrosive mediums.

Air volume control valves are widely used in industrial, mining, and civil building HVAC systems, industrial waste gas purification systems, and are one of the key equipment to control ventilation modes in various environments.

Material and category

The common materials of the air volume control valve are PP material, stainless steel material, PP material, and galvanized steel plate. The most used in the industrial waste gas purification industry is the PP damper.

Common types of damper:

1. Split multi-leaf control valve

2.Butterfly valve (single leaf regulating valve)

3. Manual air valve

4. Electric air volume control valve

6. Airtight damper

(1) The air volume control valve has four specifications when the blade width is all the same. The blade shape is a diamond-shaped double blade, and the blades are soft overlapped, so the sealing performance is excellent.

(2) The valve body frame of the air volume dispatching valve is formed by cold rolling of 2mm galvanized sheet and then welded by maintenance welding of carbon dioxide gas or processed and welded from general Q235 sheet; the blade is cold-rolled with 1mm galvanized sheet into a corrugated shape, two pieces It is composed of spot welding inserting square shaft, or 2mm G235 steel plate cold forming, single-piece punching inserting square shaft or welding round shaft.

(3) The dispatching valve is divided into manual and electric. According to the materials used, it is divided into four types: carbon steel plate, galvanized plate, aluminum alloy plate, and stainless steel plate. The valve body structure and specifications are the same.