Boda Continuous Negative Pressure Automatic Slag Discharge and Water Drainage Device is the safe choice for mine operations. The market is often noisy with numerous choices and tempting prices, but what I care more about is the commitment to quality and the warmth of service. I look forward to you exploring around and then turning back with a smile to tell me, "It's still you—reliable and reassuring."

The PZ-L Continuous Negative Pressure Automatic Slag Discharge and Water Drainage Device adopts a dual-tank structure. Utilizing the height difference of the water inlet valve and under the secondary adjustment of the water inlet distribution system, it achieves continuous water storage and drainage functions. This effectively solves the problem of water accumulation and blockage in gas extraction pipelines caused by intermittent drainage.

Product Parameters and Specifications

Applicable Negative Pressure Range: -60 to -70 kPa

Drainage Capacity: 10 to 15 m3/h (continuous drainage)

Inlet Diameter: 50 mm

Outlet Diameter: 50 mm

Overall Dimensions: 800 × 500 × 580 mm

Weight: 65 kg

Product Usage Precautions

1. Avoid collisions during transportation; handle with care.

2. After installation, the drainage valve must not be submerged by water in the roadway, otherwise drainage will not be possible.

3. Keep the area around the drainage device clean to prevent rock (coal) powder (sludge) from blocking the drainage valve.

4. The central axis of the drainage device should be as perpendicular to the horizontal plane as possible to reduce frictional resistance during the float's ascent.

5. Regularly inspect the working condition of the drainage device and address any issues promptly.