PK PS Interchangeability pumps

PK PS - Interchangeability vane pumps

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Interchangeability vane pumps for lubrification and fluid transfer

  • The Pollard technology offers a range of pumps adapted to your system without additional cost.
  • This economical solution designed to replace gear pumps by offering better performance, especially when pumping viscous fluids.
  • The PK PS range was designed to offer the same interface dimensions as the gear series of competition (competitors).
  • This characteristic allows an easy pump interchange without any modification, for OEM or aftermarket use, as well as fast and easy maintenance.
  • The range starts from 2 cc/rev pumps to 80 cc/rev pumps and the pressure is up to 15 bar g.
  • Pollard proposes lot of option to adapt the pump to the customer requirement.


Pollard unique Pump technology adapted to your system without additional cost:

  • Performance & Cost efficiency
  • Fast & easy maintenance
Capacity (cc/rev) 2 3 4 5 6 8 10 12 16 20 25 32 35 40 50 63 80
Rotation speed (rpm) 1440
Direction of rotation CW and CCW
Flow rate (L/min) 3,5 4,5 5,7 7,1 9,1 11,3 14,2 18 23 29,2 36,2 47 53 57,9 73 89,8 113
Max Discharge pressure (Bar g) 15 bar g limited by safety valve
Nominale discharge pressure (Bar g) 0 - 10 Bar g
Max suction pressure (Bar g) 3 Bar g
Suction capacity (Bar) - 0,4 Bar g (vacuum)
min/ max viscosities (cSt) 12 - 10 000 cSt (dependent on the pressure and the rotation speed)
Max oil temperature (°C) 150 °C for FKM seals
Ambient temperature (°C) - 20 / 40 °C
Mounting flange Flange ISO 3019-2
Pipe connection PK 4-25: gas tread/ PS 2-20: SAE flange
PK 32-80 et PS 25-51: SAE flange

The PK PS pumps are used to pump fluids having lubricant properties:

  • All types of oil (lubrification, dielectric, heat oil, metal forming oil, and others)
  • Glycols
  • Diesel oil, kerosene, crude oil

The fluids should ensure certain minimum lubricating properties, should not contain solids and should be chemically compatible

  • Avoid dry operation
  • In order to prevent excessive overpressure, a safety valve should be provided in the system or on the pump
  • The safety relief valve attached to the pump may only bu used as safety valve for short term operation
  • To drain off a partial discharge flow over a prolonged period, a separate pressure relief valve with return line must be inserted in the reservoir

Pollard proposes:

  • Bare shaft pump/ pump with coupling kit / complete moto pump with driving system
  • Pump with or without safety bypass
  • Standard design or low noise optimized design
  • Various seal materials (NBR, FKM, EPDM)
  • Several types of electric motors (power, speed of rotation and trademarks
  • Adaptation to different environments (ATEX, corrosive or specific industrial area)