Top page Contact us

Technical data

Examples of non-water hammer pumping systems

Solution to water hammer caused by simple reverse flow (Eliminated with only the Non-Water Hammer Check Valve)
	With coil spring

Solution to water hammer caused by recombined flow after water column separation (Surge tank is not required because of patented non-water hammer principle)

Please note the following points when installing the Non-Water Hammer Check Valve.

1	Do not install with the discharge side facing downward.
2	Do not install with the discharge side facing downward.
3	SL-SN, SH types must not be installed in a leaning position.
4	The check valve must not be exposed to any deflected flow directly after the pump or other valve.
5	If air is trapped in the pipe before the check valve, chattering may occur when starting pump operation. Make sure to install an exhaust valve in such cases.
6	If the check valve on a submerged or vertical pump is installed at ground level, the inlet side of the check valve may become a vacuum when the pump is stopped and may cause water hammer. Carefully plan the location of the check valve in such cases.
7	In addition to water hammer directly after the discharge of the pump, examine surging due to negative pressure in the middle of piping. (Please contact us for details.)

Features

Structure

Technical data

Selection & Dimensions

Inquiry form