Unimeasure

Low Pressure Pump(mmWC)

Model No: Additel 901B

Additel 901B

Low Pressure Test Pump

Portable, only 3.5 lb
Great stability and high resolution
Dual pressure modules
Minimal maintenance
Hand-tight quick connectors
The 901B Low Pressure Test Pump is a hand operated pressure pump designed to generate pressures from -6 psi (-0.4 bar) to 6 psi (0.4 bar). A high-quality screw press is designed for fine pressure adjustment, with an adjustment resolution up to 0.1 Pa (0.001 mbar). The 901B is a very stable low pressure calibrator. It makes use of an isothermal bellows chamber which is designed for reducing the possible effects of environmental temperature change. Most pumps make use of a check valve (non-returning valve) and are not well insulated which will cause large fluctuations in pressure with a change in ambient temperature or when the unit is touched. The 901B does not use a check valve and is remarkably stable. Two hand-tight connectors installed on the pump allow easy connecting and disconnecting to the test pump without the need for PTFE tape or wrenches. The 901B is an ideal comparison test pump for low pressure applications.

Media	Air
Generated Pressure Range	6 psi (0.4 bar) vacuum to 6 psi (0.4 bar) positive pressure.
Adjustment Resolution	0.1 Pa (0.001 mbar).
Weight	3.5 lb (1.6 kg)
Warranty	1 year
Material	Ram/adapters: SS Body: SS, aluminum Seals: Buna-N, PTFE, Copper Alloy
Connection	Hand-tight connectors for both test gauge and reference gauge. 1/4NPT female, 1/2NPT female, 1/4BSP female, 1/2BSP female, or M20X1.5 female
Dimensions	Height: 5.7'' (145mm) Base: 9.65'' (245 mm) x 6.50'' (165mm)

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