PGH5-2X/200LR07VU2
PGH5-2X/250RE07VU2
PGH5-2X/250RE07VE4
PGH5-2X/250RR07VU2
PGH5-2X/250LE07VU2 Imported high-pressure quantitative hydraulic pump manufactured by Rexroth Industries in Germany

FAQ:

FAQ for PGH Rexroth Gear Pumps

1. What are the main application areas of PGH Rexroth Gear Pumps?

PGH Rexroth Gear Pumps are widely used in industrial machinery (such as plastic injection molding machines, hydraulic presses) and mobile equipment (including construction machinery like small excavators, and agricultural machinery such as tractors) due to their stable pressure output and compact structure.

2. How to troubleshoot if the PGH Rexroth Gear Pump has insufficient pressure?

First, check if the inlet oil filter is clogged and clean or replace it if necessary; second, inspect the sealing parts of the pump (like O-rings) for damage and replace faulty seals; finally, verify if the relief valve matching the pump is stuck and perform maintenance on the valve.

3. What type of hydraulic oil is suitable for PGH Rexroth Gear Pumps?

It is recommended to use hydraulic oil that meets ISO VG 46 or ISO VG 68 specifications. The oil should have good anti-wear and anti-oxidation properties, and the oil temperature during operation should be controlled between -10°C and 80°C to avoid affecting pump performance.

4. How often should maintenance be performed on PGH Rexroth Gear Pumps?

To avoid clogging internal oil passages or accelerating wear, the hydraulic oil must meet a NAS 8级 (NAS Class 8) cleanliness level. Additionally, use oil with anti-foaming and anti-rust additives to extend the pump’s service life.

5. Can PGH Series Gear Pumps be used interchangeably with other Rexroth gear pump series?

No, direct interchange is not recommended. The PGH Series has unique mounting dimensions (e.g., flange size, shaft diameter) and flow-pressure curves that differ from other series (such as the PGH4 vs. PGK Series). Interchange may lead to system mismatch or pump failure. Always refer to the Rexroth product catalog for compatibility.

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