pump

For a better sealing and reliable performance, all GN centrifugal pump utilize mechanical seal.

It is one of the most important parts for centrifugal pump. Cost of mechanical seal is much more higher the common sealing material.

For saving cost, many Chinese company used packing for sealing the centrifugal pump. It is easier for mud leak with the packings.

Common material for packing are 2 kinds:

1) Asbestos packing: In many European countries, asbestos is forbidden as bad to human health

2) Aramid fiber packing: it is also a kind of chemical material, and but good for sealing

Slurry feeding pump is widely used for HDD mud system.

Slurry pump for feeding HDD mud system is a kind of vertical single stage and single suction system overhung centrifugal pump.

Strong points of slurry feeding pump for HDD mud system:

1) Fluids Touch Material for slurry pump:  High chromium cast steel (Cr26)

2) Maintainence free design:No bearing and Gland Seal between impeller and pump body of the slurry feeding pump

3) Production Standard: API Q1   & ISO/TS29001  & ISO 9001:2008

4) Coating for the slurry feeding pump for HDD:Japan Kansai Brand (Epoxy zinc rich Coating)

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GNZCQ270 is the most common vacuum degasser model. The capacity can meet most demands of different drilling site. It is interchangeable with most U.S separator models.

GNZCQ270 vacuum degasser is self suction type. While most US. brand vacuum degasser, they need a separate centrifugal pump feeding for it. It is a waste of power.

GNZCQ270 vacuum degasser utilize 2 motors. Main motor 22kw drive for the main machine, while a 3kw smaller motor power for the vacuum pump.

Vacuum degasser separator usually used after shale shaker and before desander/desilter. For details of GNZCQ270 vacuum degasser, visit GN websit.