Pneumatic valves
Pneumatic valves are devices installed to connect between the air tank and the blowpipe in a dust collection system, with the purpose of providing an air pulse to ensure dust cleaning efficiency. Pneumatic valves are divided into many different forms: Threaded valves, coupling valves, flange-mounted valves, etc.
Pneumatic Valve – A solution for controlling airflow in industrial automation systems

What is a Pneumatic Valve?
A pneumatic valve (Pneumatic Pulse Valve) is a pneumatically controlled valve, its function is to suddenly discharge (in a pulse) a large flow rate of air in a short time. The valve is typically installed on fabric filter (bag filter) systems or cartridge filters, where a strong airflow is needed to clean the filter bag surface.
In the manufacturing industry, the pneumatic valve is also called a solenoid pulse valve because it combines a solenoid coil and an opening/closing mechanism using a pneumatic valve diaphragm.
Pneumatic valves are devices installed to connect between the air tank and the blowpipe in a dust collection system, with the purpose of providing an air pulse to ensure dust cleaning efficiency. Pneumatic valves are divided into many different forms: Threaded valves, coupling valves, flange-mounted valves, etc.
Typical Pneumatic Pulse Valve Product Models
| Model | Connection Size | Thread Type | Valve Type |
|---|---|---|---|
| DMF-Z-20 | 3/4 inch | External Thread | Straight Pulse Valve |
| DMF-Z-25 | 1 inch | External Thread | Straight Pulse Valve |
| DMF-Z-40S | 1.5 inch | External Thread | Straight Pulse Valve |
| DMF-Z-50S | 2 inch | External Thread | Straight Pulse Valve |
| DMF-Z-62S | 2.5 inch | External Thread | Straight Pulse Valve |
| DMF-Z-76S | 3 inch | External Thread | Straight Pulse Valve |
| DMF-2L-B | 3/4 inch | External Thread | Angle Pulse Valve |
Outstanding Technical Specifications of Pneumatic Valves
- Valve structure: Solenoid valve type, body made of die-cast aluminum alloy, lightweight and durable.
- Connection port: G1/8″, G1/4″, G3/8″, G1/2″ thread standard, depending on the model.
- Control voltage: 24VDC / 220VAC (optional).
- Operating pressure: 0.15 ~ 0.8 MPa.
- Ambient temperature: -5°C to 60°C.
- Maximum flow rate: Depending on port size, from 300 to 1200 L/min.
- Response time: Fast, only 0.05 to 0.2 seconds.
- Protection rating: IP65 (dust and water resistant).
Superior Advantages Offered by Pneumatic Valves
✅ High precision in airflow control
✅ Long service life, good wear resistance
✅ Compact design, easy to install and maintain
✅ Compatible with various types of pneumatic systems
✅ Stable operation in environments with vibration and temperature changes
Reasons to Use Pneumatic Valves
1. Precise Control and Fast Response
- Pneumatic valves have instantaneous open/close capabilities, enabling extremely precise airflow control.
- Suitable for processes requiring high speed and stability, such as dust collection, packaging, and automated welding.
2. Cost and Energy Savings
- Lower investment cost compared to hydraulic or electromechanical valves.
- Lower energy consumption, especially when combined with smart control systems.
3. Superior Safety
- Compressed air is a non-flammable energy source, safer than hydraulic fluid or electricity.
- Pneumatic valves typically have a durable design, able to withstand harsh environments such as dust, humidity, and high temperatures.
4. Easy Installation and Maintenance
- Simple design, easy to replace components like diaphragms and springs.
- Does not require highly specialized skills for operation or routine maintenance.
5. High Flexibility
- Can be applied in many industries: manufacturing, food, medical, transportation, construction.
- Easily integrated into existing automation systems.
Applications of Pneumatic Valves
Pneumatic valves are widely applied in the dust and emission control industries:
- Fabric filter systems (Baghouse, Bag Filter): pulsing air to clean dust accumulated on the filter bag surface.
- Cartridge filter systems (Cartridge Filter): fast and efficient dust discharge, maintaining clean airflow.
- Cement, thermal power, steel refining, and mining industries: handling high-concentration dust during production.
- Food, pharmaceutical, and chemical industries: controlling fine dust, enhancing occupational safety.
- Silos and industrial conveyors: combined with vibration/pneumatic systems to prevent dust adhesion.
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A reputable and professional manufacturer and supplier of Pneumatic valves
Focus Engineering Co., Ltd. specializes in providing advanced and modern Pneumatic valves to meet all customer needs. With over 20 years of experience in the industry, we deliver comprehensive solutions that help businesses meet their production requirements.
With the core value ALL FOR A SUSTAINABLE ENVIRONMENT, we focus on the fields of Consulting – Designing – Fabricating – Installing and transferring technology for DUST FILTRATION SYSTEMS, INDUSTRIAL VALVES, BUCKET ELEVATORS, INDUSTRIAL FANS, SCREW CONVEYORS, CHAIN CONVEYORS, BELT CONVEYORS, TELESCOPIC SPOUTS, WEIGHING CONVEYOR and complete solutions for automatic weighing, bagging, and palletizing systems for industries such as cement, animal feed – aquaculture, chemical fertilizers, rice milling, etc.
In addition to manufacturing and fabrication, Focus also supplies technical and environmental equipment such as INDUSTRIAL BUCKET – BELT CONVEYORS, RUBBER CONVEYOR BELTS, INDUSTRIAL CONVEYOR CHAINS, AIR CANNONS, ROLLERS, CONVEYOR BELT CLEANERS, IMPACT BARS, DUST FILTRATION PRODUCTS, WET FILTRATION PRODUCTS, and OTHER PRODUCTS.
Furthermore, Focus Engineering Co., Ltd. – Focus Laser is a leading company in the field of sheet metal fabrication in Vietnam, with a modern equipment system and a team of experienced technicians. We specialize in providing laser cutting, bending, CNC punching, and manufacturing high-quality mechanical products. We are committed to delivering optimal mechanical solutions, meeting all technical requirements with superior quality.
With a quality management system certified to ISO 9001-2015 and a professional team of engineers and technicians, combined with technology transfer training cooperation from leading prestigious partners such as Martin Engineering – USA, Imeco – Italy, Stif – France, DongYang – South Korea, we are always committed to creating product lines and comprehensive solutions that best and most suitably meet all the requirements of our customers and partners.
Please visit our website for the most detailed information or contact:
FOCUS ENGINEERING Co., Ltd
Email: sales@focus-eng.vn
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