Mid-West Instrument Model 150 "Vari-Damp®" 150-SO-5

The Model 150 “Vari-Damp®” all purpose pulsation dampener features both a fine thread needle valve for adjusting dampening characteristics and a Precision Controlled Flow Rate Ball Check to block line surges, shock waves, or fluid hammer. This adjustment can be performed with the unit pressurized. The Model 150 provides outstanding protection for applications where low displacement devices such as bourdon tube gauges or electronic transmitters are used or in high displacement devices where diaphragm, piston, or bellows operated gauges, recorders, or controllers are required. Double-ported instruments, like Differential Pressure Gauges, should be installed with a Model 150 on each input pressure line.