DMF‑Z‑62S Explosion‑Proof Pulse Jet Valve: Reliable Choice for Hazardous‑Area Dust‑Removal Systems
The DMF‑Z‑62S explosion‑proof right‑angle electromagnetic pulse jet valve (DN62, 2.5‑inch) belongs to the classic DMF‑Z series. It is purpose‑built as a compressed‑air control switch for bag‑house dust‑cleaning systems, with an explosion‑proof solenoid coil complying with explosion‑proof standards for flammable‑dust and gas‑prone working environments. It has gained wide recognition for rapid response, stable pulsing performance and long‑term service life.
Basic Structure and Working Principle
This valve adopts a pilot‑operated double‑diaphragm design. Its inlet and outlet form a 90‑degree right‑angle layout for easy installation between air storage tanks and blow pipes of dust collectors. The internal diaphragm separates the valve into front and rear air chambers. Under normal conditions, compressed‑air fills the rear chamber via the throttle hole. Diaphragm pressure seals the outlet tightly, keeping the valve closed. Once the pulse controller delivers electric signals, the explosion‑proof solenoid activates and opens the vent hole of the rear chamber. The rear‑chamber pressure drops instantly, lifting the diaphragm to release high‑pressure compressed‑air for powerful pulse blowing on filter bags. When the electric signal stops, the solenoid resets, the rear‑chamber regains pressure and pushes the diaphragm back to seal the outlet again to finish one blowing cycleShanghai A….
Core Technical Parameters
- Nominal size: DN62 (G2‑1/2 inch internal thread connection)
- Working pressure: 0.3‑0.8 MPa (optimal operating range:0.4‑0.6 MPa)
- Optional voltages: DC24V, AC220V explosion‑proof coil
- Valve‑body material: High‑strength cast‑aluminum alloy; diaphragm material: NBR or Viton for high‑temperature options
- Ambient temperature:‑25℃ ~ +55℃; medium temperature:‑10℃ ~ +80℃
- Service lifespan: More than one‑million blowing cycles; applicable medium is dry and clean compressed‑air without oil and water.
Outstanding Advantages of Explosion‑Proof DMF‑Z‑62S
First of all, the explosion‑proof coil passes strict anti‑explosion certification. It can effectively prevent electric‑spark risks in environments with combustible dust such as coal dust, wood dust and chemical powder, satisfying safety requirements of chemical plants, cement plants, mining workshops and grain‑processing factories. Secondly, the right‑angle structure saves installation space for dust‑collector cabinets. Its internal flow channel is optimized for high airflow capacity, which improves ash‑cleaning efficiency, reduces filter‑bag blockage and extends filter‑bag service life. Thirdly, its aluminum‑alloy body is anti‑corrosion and anti‑abrasion. The high‑quality imported diaphragm delivers stable operation under continuous frequent on‑off conditions. Users can replace the diaphragm repair kit easily without disassembling the whole valve, greatly cutting maintenance costs. Besides, the threaded‑connection design makes field installation fast and firm.
