The vacuum test pump LR-Cal 2941 is used to generate vacuum (negative pressure) for checking, adjusting and calibrating mechanical and electronic pressure measuring instruments by comparative measurements. These vacuum tests may be carried out in laboratories, workshop or on site at the measuring point.


If the instrument to be tested and a sufficiently accurate reference measuring instrument are connected up to the test pump, the same vacuum is applied to the two measuring instruments when the vacuum test pump LR-Cal 2941 is is operated. By comparing the two measure valuses at random pressure values, the accuracy can be verified or the instrument under test can be adjusted.


Despite its compact dimensions, the vacuum test pump LR-Cal 2941 is easy to operate and allows for exact generation of the required test vacuum. The  LR-Cal 2941 is fitted with a fine adjustment valve for precise adjustment of vacuum. Pressure connection is made with 4 mm hose, a T-piece wich quick-coupling and a piece of hose is included in standard delivery.

LR-Cal 2941 Pneumatic Vacuum Hand Pump -0.8 bar to -24 inHg

  • Vacuum: 0 to -0,8 (-0,9) bar = 0 to -24 (-25) inHg
    Pressure port: for hose with 4 mm inner diameter and 6 mm outer diameter
    Materials: Aluminium, brass, ABS, NBR
    Generation of vacuum: Knob (volume approx. 20 cm³)
    Max. vacuum generation: Valume variator, volume approx. 20 cm³, fine thread 1 mm
    Fine adjustment: Volume adjustment valve with large volume
    Dimensions: Pump body length approx. 200 mm, diameter approx. 35 mm
    Weight: approx.. 400 g

For Sales, Calibration, or Repair Services Call 1 (888) 868 - 4546

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750 Oakdale Rd Unit 52

Toronto, Ontario

M3N 2Z4 Canada

Local: (905) 406-0100 

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