Install Check Valves - SPX FLOW Universal TS Series Instruction Manual

Installation
Figure 11 - Pump Below Supply
(recommended)
NOT recommended
Recommended
Figure 12 - Piping Slope

Install Check Valves

A
B
A. Inlet Check Valve
B. Foot Check Valve
Figure 13 - Inlet Check Valve
B
A
A. Closed Tank - produces vacuum on
liquid (Low Absolute Pressure)
B. Check Valve (outlet)
Figure 14 - Discharge Check Valve
Page 18
Waukesha Cherry-Burrell Brand Universal TS Series
Inlet Piping
Install the pump below the supply liquid level to reduce the air in
the system by flooded suction, to prevent the pump from
becoming air-bound (Figure 11).
If the pump is installed above the supply liquid level, the piping on
the inlet side must slope up toward the pump, preventing air
pockets in the pipes (Figure 12).
Inlet Side on Lift Applications
Use check valves to keep the inlet line full, particularly with low-
viscosity fluids (Figure 13).
Discharge Side
For systems with liquid under a vacuum, install a check valve on
the discharge side of the pump. The check valve prevents
backflow (air or fluid) to aid in the initial start-up by minimizing the
required differential pressure supplied by the pump to start the
flow (Figure 14).
95-03141 06/2017