Additel 946A Hydraulic High Pressure Calibration Pump

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SKU: ADT946A Categories: ,


The new Additel 946A Hydraulic High Pressure Calibration Pump is a benchtop pressure pump designed to generate pressure to 15,000 psi (1,000 bar). This pump incorporates a dual-piston system which is ideal for filling large volume workload with the hand pump and providing smooth increase and decrease of pressure with the high pressure, fine adjust screw press. The 946A test pump incorporates an isolation valve which isolates the calibration volume from the check valve associated with the hand pump. Because the check valve can often be a source of leaks and maintenance, the isolation valve provides more stable measurements and reduces potential maintenance of the pump. Three hand-tight quick connectors installed on the pump allow easy connecting and disconnecting to the test pump without the need for PTFE tape or wrenches. The Additel 946A is an ideal comparison test pump for calibrating pressure measuring instruments such as test gauges, indicators or transducers.

• Media: 
Mineral oil or deionized water. (Oil is default media liquid. Pump with water as media to be ordered    specifically)

• Reservoir capacity:
  420ml (25.6 in^3)

• Pressure Range
  0 psi to 15,000psi (1,000bar).

• Material
  Ram/adapters:  SS
Body: SS/aluminum, copper
Seals: Buna-N

• Connection
  Hand-tight connectors for both test gauge and reference gauge(s).
1/4NPT female, 1/2NPT female, 1/4BSP female, 1/2BSP female, or M20X1.5 female

• Dimensions
  Height: 6.9″ (175 mm)
Base: 17.9″ (455 mm) x 15.0″ (380 mm)

• Weight:
  28.7 lb (13 kg).

• Warranty:
  1 year

• Piston volume: 
Fine adjust piston: 1.5 ml


The Additel 946A is designed to generate pressure to 15,000 psi (1000 bar) for the application requiring accurate pressure testing and calibration. It can be used in calibrating pressure gauges, transmitters, or other pressure measuring instruments.


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