Where is the check valve installed

The locations for installing check valves are determined by the conditions of the technological process; additionally, in some systems, the check valve must be used according to the requirements of regulatory documents or the operating conditions of the installed equipment:

• Check valves are used on the pressure pipes of all parallel-installed pumps to prevent flow through inactive pumps.
• In the installation points of water meters in potable water supply systems, check valves are installed to prevent backflow of water through the water meter.
• In heating and ventilation systems with mixing pump units, check valves are installed on the bypass between the supply and return pipes to prevent the transfer of the heat carrier.
• A check valve is installed on the supply pipe of heating systems connected to heat networks under a dependent scheme if the hydraulic regime of the heat source does not exclude the possibility of draining the heating system.

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