Positive Displacement Valve The VDP150 plunger pump is a pneumatically operated positive displacement valve designed for dispensing constant volume shots of low to medium viscosity materials. The VDP150 has two integral check valves to control the flow of material.
The model VC-1195A is a suitable 4-way valve controller for the VDP150 double acting metering valve.
Operation
The valve is cycled by applying air pressure to the air ports. For low viscosity materials (less than 5,000cps) no fluid pressure is required, as the material is sucked-in by the plunger into the displacement chamber. Low fluid pressure is required for medium viscosity materials (5,000 - 20,000cps).
Shot sizes may be fine tuned by turning the adjustment knob at the top of the valve.
