The DMF-ZM coupling nut type electromagnetic pulse valve is a right-angle, diaphragm-operated pulse solenoid valve designed for pulse-jet dust collector systems, serving as a high-speed compressed air switch for filter cleaning. It is also known as a quick-connect pulse valve, featuring external threads with fastening nuts at both inlet and outlet ports for easy installation and maintenance.
Basic Structure & Working Principle
- Structure: The valve adopts a right-angle (90°) flow path design, with a die-cast aluminum body (lightweight and durable) and a rubber diaphragm (NBR standard, VITON optional) that divides the valve into front and rear air chambers. It integrates a solenoid coil (IP65 protection, epoxy resin encapsulated) and a pilot mechanism for fast response.
- Working Principle:
- Closed State: Compressed air enters the rear chamber through an orifice, pressing the diaphragm against the outlet to seal the valve.
- Open State: An electrical signal triggers the solenoid, opening the exhaust hole of the rear chamber. The rear chamber depressurizes instantly, and the diaphragm lifts to release a high-pressure air pulse for filter bag/cartridge cleaning.
- Reset: When the signal ceases, the solenoid resets, the exhaust hole closes, and the rear chamber repressurize to close the valve.
Key Technical Parameters
| Parameter | Specification |
|---|---|
| Model | DMF-ZM-20 (3/4″), DMF-ZM-25 (1″), DMF-ZM-40S (1½”), DMF-ZM-50S(2″) |
| Nominal Diameter | 20mm, 25mm, 40mm (double diaphragm for 40S) |
| Working Pressure | 0.1–0.8MPa (optimal: 0.4–0.6MPa) |
| Voltage Options | AC220V, AC110V, AC24V, DC24V |
| Ambient Temperature | -25°C to +80°C (standard: -10°C to 55°C) |
| Diaphragm Material | Nitrile (NBR), Viton (FKM) |
| Body Material | Die-cast aluminum alloy |
| Protection Class | IP65 (dust-tight and water-resistant) |
| Service Life | ≥1,000,000 blowing or 2–3 years |
Core Advantages
- Easy Installation: Outer nut connection design enables tool-free, quick mounting to air tanks and blowpipes, reducing maintenance time.
- High Blowing Efficiency: Right-angle design minimizes airflow resistance, delivering strong, focused air pulses for thorough filter cleaning.
- Reliable Performance: High-quality diaphragm and solenoid components ensure stable operation under frequent cycling and harsh industrial conditions.
- Wide Compatibility: Standard interface dimensions fit most pulse-jet baghouses and cartridge dust collectors, supporting easy replacement.
Applications
It is widely used in pulse-jet bag filters, cartridge dust collectors, and industrial dust removal systems in industries such as cement, steel, chemical, pharmaceutical, and food processing, effectively removing dust from filter media to maintain optimal filtration efficiency。
Installation Diagram
