DCF-F-Y Immersed Explosion-Proof Baghouse Pulse Valve Manufacturer

The Xiechang® DCF-F-Y series immersed pulse valve features a unique embedded air manifold design, with the air inlet submerged directly inside the air bag, significantly reducing airflow resistance. This series is specifically engineered for industrial environments with high-concentration, flammable, and explosive dust, providing superior pulse cleaning performance.

Technical Specifications

• Operating Pressure: 0.2 ~ 0.6 MPa (Certain models: 0.4 ~ 0.6 MPa)
• Working Medium: Clean, filtered, and oil-free air
• Rated Voltage: DC 24V (Optional: AC 220V/50Hz)
• Rated Current: 1.25A for DC 24V (0.5A for AC 220V)
• Protection Grade: IP65 (Dust-tight and waterproof)
• Ex-proof Grade: Ex d IIC T4/T6 Gb
• Operating Temp: -25°C to 85°C (Standard Diaphragm)
• Relative Humidity: ≤ 85%
• Service Life: Tested for approx. 1 million cycles

▶ 1. What is an Immersion Explosion-Proof Pulse Valve?

An immersion (or embedded) explosion-proof pulse valve is installed directly inside the air manifold (header tank). As a high-performance baghouse pulse valve, it is equipped with a flameproof pilot enclosure that prevents electrical sparks from igniting flammable dust or gases in hazardous industrial environments.

▶ 2. How does an Immersion Explosion-Proof Pulse Valve work?

Because the valve body is “submerged” in the air tank, compressed air acts directly on the diaphragm. When the ex-proof pilot activates, it releases the pressure in the rear chamber. The pressure differential causes the diaphragm to lift instantly, allowing air to blast directly into the blowpipe without the resistance common in external valves.

▶ 3. What are the advantages of an Immersion Ex-Proof Pulse Valve?

Peak Performance: Minimal flow resistance yields the highest pulse intensity. Certified Safety: Meets rigorous Ex d explosion-proof standards. Space Efficiency: The embedded design reduces the overall height of the cleaning system. Energy Saving: Operates effectively even at lower air pressures.

▶ 4. What are the defects of an Immersion Ex-Proof Pulse Valve?

The primary drawback is the complexity of maintenance. Since the valve is inside the manifold, repairing or replacing diaphragms often requires partial disassembly of the tank. Furthermore, the specialized ex-proof construction makes the initial unit price higher than standard models.

▶ 5. Application Scenarios for Immersion Ex-Proof Pulse Valves

Essential for large-scale dust collectors in coal mines, petrochemical refineries, chemical processing, and grain storage. It is the premium choice for baghouse pulse valve systems where high-volume air impact and maximum safety compliance are required.