The DMF-T straight-through pulse valve is a type of solenoid-operated valve widely used in industrial dust collection and pneumatic pulse-jet cleaning systems, especially in baghouse dust collectors.
1. Basic Definition
DMF-T straight-through electromagnetic pulse valve (also called straight-through diaphragm pulse valve) is a core pneumatic valve matched with pulse bag dust collectors. Its most distinctive structural feature is the 180° collinear inlet and outlet (the central axes of air inlet and outlet form a straight line), which distinguishes it from right-angle (DMF-Z) and submerged (DMF-Y) pulse valves.
2. Working Principle
When the solenoid coil is energized:
- The electromagnetic force lifts the valve core directly.
- Compressed air is released instantly from the air reservoir.
- The diaphragm opens quickly, generating a high-intensity pulse of air.
When the power is cut off:
- The spring force and air pressure reset the diaphragm.
- The valve closes immediately, stopping airflow.
This rapid on/off action produces a strong, short burst of air.
3. Structural Features
A typical DMF-T pulse valve includes:
- Solenoid coil (electromagnetic actuator)
- Valve body (usually aluminum alloy)
- Diaphragm assembly (wear-resistant rubber material)
- Spring mechanism
- Inlet and outlet ports (often 90° or straight-through depending on model)
4. Key Advantages
- Fast response time (millisecond-level switching)
- High pulse strength for effective dust removal
- Simple structure with reliable operation
- Low air consumption compared to continuous blowing systems
- Easy maintenance and long service life
5. Applications
DMF-T valves are mainly used in:
- Baghouse dust collectors (industrial filtration systems)
- Cement plants
- Steel and metallurgy industries
- Power plants
- Chemical processing facilities
- Mining and material handling systems
6. Function in Dust Collection Systems
In a pulse-jet dust collector, DMF-T valves periodically release compressed air into filter bags. This “pulse” knocks dust off the filter surface, keeping the system efficient and preventing clogging.
7. Main Technical Parameters
| Item | Specification |
|---|---|
| Working Medium | Clean, dry, oil-free compressed air |
| Operating Pressure | 0.1–0.8 MPa (max withstand pressure 0.8 MPa) |
| Operating Temperature | -25 ℃ ~ +60 ℃ |
| Optional Voltage | DC24V (most common), AC220V, AC110V |
| Connection Thread Sizes | DMF-T-20 (G3/4″), T-25S (G1″), T-40S (G1½”), T-50S (G2″), T-62S (G2½”) |
| Service Life | ≥1,000,000 times |
| Injection Pulse Width | Adjustable 0.05–0.3s via pulse controller |
| Mounting Form | Straight inline between air tank and blow pipe |
