The lever action hand
pump, which is supplied with both the
type T & R hydraulic deadweight testers,
incorporates a dual volume control
valve. This allows the pump to deliver a
high volume in order to rapidly fill
systems and build pressure. The low
volume permits easy pumping at high
pressures and a more gradual approach to
the point of pressure calibration. A
vernier adjustment is provided for fine
adjustment to the desired pressure.
