Champion Valves of Wilmington, NC | Installation Guide - Champion Valves

VALVE SELECTOR                                                              INSTALLATION & OPERATION MANUAL

RECOMMENDED INSTALLATION

In addition to manufacturing high-quality check valves, we want to make sure that your check valves perform as expected, by practicing the following recommendations:

A check valve closing element is designed to react to the line fluid.  Many factors can significantly affect the performance and life of a check valve.  These include:
• the type of pump or compressor moving the fluid
• the type of fluid
• fluid velocity
• turbulence

 

ALL CHECK VALVE DESIGNS

The type of pump or compressor providing force to the fluid must be taken into consideration when selecting a check valve.

Fluid velocity determines the degree of opening of a check valve’s disc(s).  Too little velocity can destabilize the disc(s), resulting in disc “fluttering” or “chattering”.  Excessive velocities can cause the disc(s) to be unstable and flutter, leading to premature valve wear.  The recommended range of flow velocity depends on the type of fluid and the check valve design.  The following flow ranges (ft/sec) should be practiced for long check valve life.
 

LIQUID-HORIZONTAL PIPING (ft/sec)

LIQUID-VERTICAL PIPING (ft/sec)

GAS-HORIZONTAL PIPING (ft/sec)

GAS-VERTICAL PIPING (ft/sec)

Turbulent flow can cause the premature wear of a check valve.  Proximity to a pump, pipe fittings (elbows, reducers, tees, etc.), expansion joints, and other valves, upstream and downstream of the check valve, can create turbulent liquid and gas flow.   Champion Valves recommends five (5) diameters of straight pipe upstream and one (1) pipe diameter downstream of the check valve to minimize wear.

Contact Champion Valves, Inc. for additional information, available options for fluid conditions, installations and piping outside of these ranges.

 
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