Introduction of PP constant air volume valve

  • Home
  • Tagair volume control valve

Introduction of PP constant air volume valve

Tags :

Category : Blog

China Xicheng Environmental Protection has 16 years of experience in the research and development, and production of industrial waste gas purification equipment. It has developed a new generation of RHV series Venturi variable air volume control valves with independent intellectual property rights, integrating high-speed intelligent control, automatic mechanical compensation, and pressure-independent control technology. Integration to meet the unique requirements for airflow control in industrial exhaust gas ventilation systems. The PP series Venturi variable air volume valve is mainly suitable for constant air volume control, bistable control, or variable air volume control.

Main features of PP series Venturi constant air volume regulating valve:

1. Pressure-independent control: mechanical pressure compensation components are installed in the sliding valve body in the valve body, and automatic pressure compensation is carried out according to the pressure difference between the inlet and outlet of the air duct to ensure that the air valve maintains a constant air volume at the setpoint when the static pressure changes; the valve can be at the valve end The pressure drop is within the range of 150Pa~750Pa to achieve pressure independent control;

2. Accurate airflow control: through the positioning of the airflow speed controller component, the air volume can be quickly adjusted, and the air volume control accuracy is ±5%;

3. Large air volume adjustment control range: air volume 50m3/h~1100m3/h;

4. Quick response: Response time to control signal and air duct static pressure change: <1 second;

5. Anti-dust and maintenance-free: Compared with similar products of conventional butterfly valves, because this series of products have no airflow (or pressure difference) sensor, it avoids the occurrence of safety accidents that cause system failure to dirty sensors and improves the stability of the product And durability.

6. High anti-corrosion treatment: The valve body is made of PP plastic material. Yes, this product can operate safely for a long time under high-strength corrosive conditions;

7. High reliability, high quality, and low price, good service: domestically produced high-quality products, reliable operation, high quality, and low cost, and provide 24-hour service.

Typical applications of PP series Venturi variable air volume control valve:

1. Constant air volume control (CAV series): Suitable for situations where the set air volume is maintained when the static pressure changes.

2. Variable air volume control (VAV series): suitable for closed-loop feedback variable air volume control occasions.

  • Warrantry time: 1 year
  • Product spec: Custom
  • Material: 100% polypropylene
  • Shape: round or square
  • Contact information
  • Email: Leyte@chian-xicheng.com
  • Whatsapp: +86 19925135783

Manual rectangular duct damper product introduction

Tags :

Category : Blog

The manual rectangular duct damper is made of PP polypropylene, which is resistant to acid and alkali corrosion. The production process of the manual rectangular duct damper is relatively complicated. It needs to be carved and cut from polypropylene PP sheet, and then produced by company A by manual welding. Production cannot be automated, so the cost of the rectangular duct damper is high.

Manual rectangular duct damper is suitable for chemical plants, laboratories and other application environments with explosion-proof requirements. It is used in PP material ventilation duct systems and is connected with PP air ducts. It is used for corrosive gas extraction and exhaust control, anti-corrosion, acid and alkali resistance , PP plastic manual rectangular duct damper complete specifications, supporting PP duct, elbow, tee, variable diameter use, constitute a complete PP ventilation duct system.

Manual rectangular duct damper is a kind of non-sealed butterfly valve, which is widely used in universities, chemical, biological, electric power, energy, environmental engineering, etc. in the production process, the medium temperature is less than or equal to 90℃, and the nominal pressure is less than 0.1Mpa. It is usually installed on the top of the fume hood, the PP suction hood and the inlet of the pipeline of the one-use-one-standby spray tower to switch the exhaust gas flow direction of the spray tower.

Structure of PP plastic manual rectangular duct damper

Square structure, flange connection.

Manual rectangular duct damper performance characteristics:
  • PP material processing, acid and alkali corrosion resistance, strong anti-corrosion performance;
  • PP square duct damper is designed with sockets at both ends, and flange connection can also be welded;
  • High-strength actuator, all-copper design, switch life more than 20,000 times;
  • The inner and outer walls are smooth and the wind resistance is small.
Contact information

Email: Leyte@chian-xicheng.com

The main functions and characteristics of the air valve

Tags :

Category : Blog

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 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.

3

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.

Email:Leyte@china-xicheng.com
WhatsApp:+86 18028775826

Contact us

other service
Contact Us
Email:Leyte@china-xicheng.com
WhatsApp:+8618028775826

Xicheng EP Ltd

© Copyright 2020. Xicheng Ep Ltd All Rights Reserved