Liquid is delivered in axial direction continuously without agitation and pulsation,so screw pump has constant capacity and pressure,smooth running, small vibration and noise. Screw pump has a very high suction capacity.It needn't bottom valve and other equipment. The drive screw is driven by motor and the idler screw is driven by the pressured liquid,between the drive screw and idler screw,scre

Mainly used for pumping and coating high temperature pitch; suitable for pitching coating in highway, bridge, road and square etc. Used for pumping and coating other liquid such as heavy oil etc.

Adopting independent lubricant outboard bearing and used for transporting different kinds of non-oiliness media.

The product is a kind of middle and large double suction double screw pump with two construction forms i.e.With inbuilt bearing or bearing,and with two outfit types i.e.With or without heating chamer and safety valve.The bearing bore and pump bore of external bearing type are separated by mechanical seal and skeleton oil seal.Type and of good seal tightness.

Large flow, good self-priming performance, low noise, long permanence life.

Suitable for transporting different kinds of oil with the viscosity less than 300c.s.t, such as crude oil, diesel oil, lubricating oil, animal and vegetable oils etc.