HDPE/MDPE Hydraulic Fusion Quick Guide - Setting the Drag Pressure

SETTING THE DRAG PRESSURE

• With the pipes spaced approximately 2” apart, shift the SELECTOR VALVE to the heating position.
• Back the HEATING PRESSURE REDUCING VALVE all the way out by turning the knob counter-clockwise until it stops.
• Shift the DIRECTIONAL VALVE to the closed position.
• If the carriage doesn’t move, slowly increase the HEATING PRESSURE REDUCING VALVE until the carriage begins to move, then back the pressure off until the carriage is barely moving.
• Before the pipe ends come together, look at the manifold gauge and note the pressure.

IMPORTANT:  If the carriage moves with the HEATING PRESSURE REDUCING VALVE backed all the way out then you will use 30 PSI for drag.