Industrial valves · Клапаны MECAIR: серии, маркировки, характеристики
Engineering Overview of Mecair Pulse Valves for Dust Collection Systems
MECAIR is a recognized technological leader in the engineering and manufacturing of high-performance pulse diaphragm valves. The brand's products, part of a large international industrial holding, are designed for highly efficient regeneration of bag and cartridge filters in industrial aspiration and gas purification systems.
MECAIR pulse valves are designed to generate a short but powerful burst of compressed air. This pulse creates a shockwave that effectively shakes off dust deposits from the surface of the filter elements, ensuring stable performance of purification systems in metallurgy, cement, chemical, and energy industries.
Engineering Analysis of Mecair Valve Technical Characteristics
- Connection Configurations: The model range includes valves with threaded (for standard installations), flanged (for high-flow systems), manifold (for integration into a receiver), and quick-release connections with a dresser nut (to minimize maintenance time).
- Pilot Control Methods: Two main modifications are available: VNP with an integrated electromagnetic pilot (solenoid) for direct electrical control, and VEM with a port for an external pneumatic signal, which provides flexibility for integration into complex automated control systems.
- Operating Temperature Range: Standard Nitrile (NBR) diaphragms are designed to operate in the range of -40 to +82 °C. For high-temperature applications, Viton (FKM) diaphragms are used, capable of withstanding -29 to +232 °C. Specialized versions for arctic conditions can function at temperatures down to -60 °C.
- Construction Materials: Bodies made of cast anodized aluminum provide excellent corrosion resistance and low weight. Stainless steel fasteners ensure durability and reliability in aggressive industrial environments.
Classification of Mecair Valve Series
- VNP: Series with integrated electromagnetic solenoid for autonomous operation based on an electrical signal.
- VEM: Series controlled by an external pneumatic signal from a separate pilot unit.
- Series 200: Threaded valves, an industry standard for compact and modular filtration units.
- Series 300: Models with quick-release connections (dresser nut), optimized for facilities where component replacement speed is critical to site performance.
- Series 400, 500G and Goyen FS: High-performance flanged and manifold valves, designed for large-scale dust collection systems with high air volumes.
Technical Parameters and Specifications
Series 200 Valves (threaded connection)
Designed for aspiration systems where ease of integration and reliability are key factors. Installation is possible in any spatial position, except inverted (solenoid down).
| Parameter | Connection | Pressure | Temperature | Materials | Piloting |
|---|---|---|---|---|---|
| Value | Thread 3/4″ and 1″ (NPT/RC/G) | 0.3–8.6 bar | Nitrile: from –40 to 82 °C; Viton: from –29 to 232 °C; Spec.: up to –60 °C | Aluminum body, stainless steel fasteners, Nitrile/Viton diaphragm | Integrated solenoid or external pilot |
Series 300 Valves (dresser nut connection)
An optimal solution for silos, bunkers, and continuous operation filters where the speed of component replacement directly affects plant productivity.
| Parameter | Connection | Pressure | Temperature |
|---|---|---|---|
| Value | Dresser nut | 0.5–7.5 bar | Nitrile: –40/+82 °C; Viton: –29/+232 °C; Spec.: up to –60 °C |
Flanged and Manifold Valves
Used in powerful industrial gas purification systems with high flow intensity and increased requirements for throughput capacity.
| Parameter | Connection | Pressure | Temperature |
|---|---|---|---|
| Value | Flanged or receiver mounting | 0.3–8.6 bar | Nitrile: –40/+82 °C; Viton: –29/+232 °C |
Control Systems: Pilots and Sequencers
For precise control of regeneration cycles, EV Group China supplies a full range of Mecair control components:
- Pilot Modules: Solenoid Pilot Valves and protected enclosures, including explosion-proof versions of PEX and PXA series for use in hazardous environments.
- Controllers: Programmable sequencers (e.g., MT48 A4D) and differential pressure regulators (CSN) allow precise adjustment of pulse duration and intervals, optimizing compressed air consumption and extending the service life of filter elements.
Engineering and Supply of Mecair Valves from EV Group China
EV Group China, as a technological partner and supplier of rolled metal products, provides direct supplies of original Mecair valves, as well as diaphragms and repair kits for industrial enterprises. Our engineers will help you make an accurate selection of equipment for the specific parameters of your system (DB, VNP, VEM series), based on the type of dust, air volume, and operating conditions. For technical consultation and cost calculation, please send your specification to the engineering department of EV Group China.