Author Archives: ppairvalve

PP Electric Air Volume Control Valve 

The PP electric air volume control air valve adopts injection molding, which has strong sealing, beautiful and durable, and is connected to the air pipe for air adjustment. Injection molding air valve is divided into two kinds of materials: one is PP and the other is PVC. Diameters within Φ315mm are injection molded, and other large sizes are manually welded, and they can also be made of stainless steel or glass fiber reinforced plastic materials.

The PP electric air volume control air valve is mainly used in the experimental fume hood and the ventilation pipe of the etching and electroplating production line equipment. It has the advantages of high strength, good heat preservation, moisture resistance, corrosion resistance, good non-combustibility, high temperature resistance, easy installation, etc. Our company can process and manufacture square and round air valves of various specifications according to the drawings and specifications provided by the user.

The electric air volume control valve adopts our self-developed electric control actuator. It can precisely control the air volume. The polypropylene raw material used for injection molding has the characteristics of anti-chemical corrosion, compression resistance, and light weight. It can be widely used in various ventilation duct systems.

This product has a wealth of size models, DN90MM, DN110MM, DN160MM, DN200MM, DN250MM, DN315MM, DN400MM, DN500MM or customized sizes.

Reasons for choosing us:

Honest manufacturer, reasonable price and quality assurance.

Source manufacturer, sufficient inventory, high cost performance.

Free technical support, answer technical questions for you throughout your life.

You can join agents to provide you with exclusive sales channels.

  • Contact information
  • Email: Leyte@chian-xicheng.com
  • Whatsapp: +86 19925135783

Air Control Valve Polypropylene PP Manual Air Valve

The air valve is an indispensable central air-conditioning terminal accessory in the ventilation, air scheduling and air purification engineering of industrial plants and civil buildings. It is generally used in air conditioning and ventilation system pipes to control the air volume of branch pipes. It can also be used for fresh air and return air. Mixed scheduling.

The air valve is an indispensable central air-conditioning terminal accessory in the ventilation, air scheduling and air purification engineering of industrial plants and civil buildings. It is generally used in air conditioning and ventilation system pipes to control the air volume of branch pipes. It can also be used for fresh air and return air. Mixed scheduling.

1. Structural characteristics of the air valve

(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 control valve is injection molded from polypropylene material, which has good sealing performance. The product itself has the characteristics of anti-acid and alkali corrosion, and can be widely used in exhaust gas exhaust pipes.

(3) The dispatch valve is divided into manual and electric. The valve body structure and specifications are the same.

2.the characteristics of the air valve

(1) The takeover standard of the split multi-leaf air volume dispatching valve is the same as the rectangular air duct standard of the national ventilation duct standardization.

(2) The blades of the air volume dispatching valve are side-opening and forward-opening, which are used as dispatching valves in ventilation, air dispatching and air purification systems.

(3) According to the test, the air-tightness of the air volume dispatching valve is good, and its relative air leakage is about 5%, and the dispatching performance is good.

3.the scope of application of the air valve

It is widely used in industrial, mining, and civil building HVAC systems to accurately schedule air flow. It is one of the key equipment for controlling ventilation modes in various environments. Its main features are flexible work, low noise, small leakage, reliable structure, safety and convenience.

The above are the main functions and features of the air valve. There are also different types of air valve for different occasions and needs.

  • Contact information
  • Email: Leyte@chian-xicheng.com
  • Whatsapp: +86 19925135783

PVC plastic manual damper

Product Introduction

China Xicheng Environmental Protection Company specializes in the production of PVC plastic manual dampers, made of PP polypropylene, suitable for chemical, laboratory and other ventilation systems with explosion-proof requirements. PVC plastic manual dampers are composed of plastic dampers and pneumatic actuators. Dimensions Support customization, square or round.

PVC plastic manual damper product introduction

The PVC plastic manual air valve is made of PVC and is resistant to acid and alkali corrosion. The working principle of the PVC plastic manual air valve is the same as that of the PVC 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 PVC plastic manual damper.

electric control valve

PVC plastic manual air valve is suitable for application environments with explosion-proof requirements such as chemical plants and laboratories. It is used in PVC ventilation pipe systems and is connected with PVC air pipes. It is used for exhaust control of corrosive gases, corrosion-resistant and acid-resistant. Alkali, PVC plastic manual air damper has complete specifications, supporting PVC air pipes, elbows, tee, and variable diameters to form a complete PVC ventilation piping system. The pneumatic actuator of the PVC plastic manual air valve can be selected according to the specifications of the air valve. Torque.

PVC plastic manual air valve is a non-closed butterfly valve, which is widely used in universities, chemical industry, biology, electric power, energy, environmental engineering, etc. In the production process, the temperature of the medium is ≤90℃ and the nominal pressure is less than 0.1Mpa. Connecting, opening and closing or adjusting the medium, usually installed on the top of the fume hood, PVC suction hood, and at the entrance of the one-use one-standby spray tower pipe, as a switch to the spray tower exhaust gas flow direction.

Principle of PVC plastic manual damper

The PVC plastic manual damper is installed in the PVC/PP piping system. Through manual operation or PLC automatic control technology, the damper can be opened and closed as required. The principle is that plastic blades are installed in the damper, and the damper is rotated by the damper actuator. , Drive the rotation of the butterfly valve blades to achieve a 90-degree turning angle to achieve the purpose of opening and closing, and has a feedback indication function. Through the pressure difference detection device, after closing the air valve, the signal is transmitted to the PLC system, so as to control the PVC fan frequency converter to reduce the speed and energy-saving operation.

The structure of PVC plastic manual damper

  • Circular structure, flange connection;
  • Square structure, flange connection.

Performance characteristics of PVC plastic manual damper

  • PVC material processing, acid and alkali corrosion resistance, strong anti-corrosion performance;
  • PVC manual air valve with socket design at both ends, and flange connection can also be welded;
  • High-strength actuator, all-copper design, switch life is more than 20,000 times;
  • The inner and outer walls are smooth and the wind resistance is small.

What material is the main material of the PP duct valve

The current decoration market has very high requirements for PP ducts, including material, price, and other aspects. Although the small PP pipe is inconspicuous, it plays a vital role in home decoration. People are very concerned about the material of PP air pipe valves, so what materials are used for PP air pipe valves on the market now? The following editor will introduce you to the relevant information about PP air pipe valves.

What material is the main material of the PP duct valve

PP duct, glass fiber reinforced polypropylene pipe. Specializing in the production, sales, and installation of FRPP ducts, the raw materials are pure and no return material is added, the equipment is advanced, and the technology is sophisticated. The FRPP ducts produced have smooth inner and outer walls, uniform texture, low fluid resistance, and strong ventilation; acid and alkali resistance, corrosion, and temperature resistance It has stable performance prevents secondary chemical reactions between the medium in the tube and the tube body, and reduces the difficulty of purification of industrial waste gas and liquid; it is non-toxic and tasteless, environmentally friendly and hygienic, non-scaling and non-bacterial, suitable for process pipelines in the food industry. Air ducts are pipes used for air transportation and distribution. In the chemical, food, and other industries, the requirements for ventilation duct systems are getting higher and higher. Metal ducts are far behind plastic ducts in terms of chemistry, hygiene, and economic efficiency. PP air ducts are widely used in the purification treatment of acid mist, alkali mist, alkaline waste gas, and organic waste gas in chemical, chemical fiber, textile, pharmaceutical, and other industries.

Classification of PP duct valves

1. One-time regulating valve: If the system is not balanced, it is a regulating valve designed to achieve the required air volume. It is divided into flapper valve, butterfly valve, multi-leaf regulating valve, and three-way valve.

2. Frequently switched regulating valves: Mainly include fresh air valve, primary and secondary air return valve, exhaust valve (including exhaust valve for comprehensive exhaust and partial exhaust).

3. Automatic control valve: Mainly used for automatic adjustment of fresh air, primary return air, and secondary return air. In addition to meeting the requirements of frequently-on-off regulating valves, it should also have good regulating characteristics.

Material and advantages of PP duct valve

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.

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


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