Application and Series
Size; Pressure class and Conections
Characteristics and Advantages

Centrifugal pump protection. Avoids low and reverse flow in centrifugal pump operation, eliminating maintenance problems due to NPSH, superheating and premature wear of housing, disks and bearings three basic models:

Series 2500
Model VRM-HPM for high pressure pumps.

Series 1700
Model NVM for low to medium pressure pumps.

Series 1700
Model VL and NVL for low pressure pumps.

From1.½"
to 30"

150#
to 2500#

BW or
Flanged

 

 

 

 

 

 

 

Complete system, self-actuated, with flow-Measuring function; Recirculation control and Main flow Check valve.

Utilizes the principle of operation of measurement of flow from pump to process and controls the recirculation in stages avoiding flashing and cavitation.

Operation is silent and reliable.Easy maintenance and sealed to environment..

The investment will pay off within a few months , since it reduces the operation and maintenance cost of the centrifugal pump.