Triple Base Vacuum Pumps are assembled with air supply bypass plate for control. It includes air pressure gauge and vacuum gauge. It is 12.55 lbs in weight.
The triple duty valve is a quiet operating heavy-duty, which performs all of the functions normally required on the discharge side of hydronic system pumps. The valve serves as a nonslam check valve as needed for zoned pumping, parallel and standby pumping, and condenser water applications. The spring-loaded disc prevents valve chatter, and assures shutoff.