Page 13 - Linde - HPV-02 Variable pumps for closed loop operation

Gear pumps.

The IGP charge pumps include a cold start relief valve and a through drive for attaching additional pumps. The suction can be
internal, external or combined. IGP types are available in rated sizes of 16 cc/rev and 22.5 cc/rev.

Internal gear pump IGP with internal suction

Internal suction External suction Combined suction

A A A
HPV-02 HPV-02 HPV-02

B B

>> Internal suction
The charge pump supplies the main circuit with oil from the pump housing.
External connection B is closed.

>> External suction
The charge pump supplies the main circuit with oil from the oil tank.
Ther internal connection is closed.

>> Combined suction
The charge pump supplies the main circuit with oil from the pump housing and oil tank.
This type of suction is a combination of internal and external suction.

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