Pump screw VN-420

The characteristics of the screw pump allow it to be used for pumping drilling fluids with a density of 1.0-1.3 kg / l.

The working surfaces of the pumping pair allow the presence of a solid fraction in the pumped liquid.
Overall dimensions and weight of the pump make it possible to place the pump on the MGBU platform.

The screw pump is driven by the hydraulic system of the installation using a hydraulic motor.
Hydraulic control makes it possible to smoothly control the shaft speed, and therefore, change the modes of flushing the well.

Main characteristics of the VN-420 mud pump:

Average productivity - 27 m3 / hour.
Pressure on a fully closed valve. - up to 20 bar

Advantages of a screw pump:

• Light weight and dimensions.
• No pulsation of flushing fluid.
• Low drive power.
• Self-priming depth 5-8 meters.
• Direct dependence of performance on power consumption.
• Lack of strict requirements for the presence of solid particles (15-30 mm).
• Simplicity of design.
• Ease of use (especially in winter - quick drainage of water from the system)

The VN-420 screw pump can be mounted on any drilling rig in which it is possible to connect the drive hydraulic motor to a hydraulic system, including a small one.