About Six-Port Valves

A six-port valve is installed to connect a consumer to a 4-pipe system for heating and cooling. Six-port valves with and without a control group are available. Without a control group, the valve acts as simple resistance in the network, with a kvs value. With control group, the valve is given an additional pressure-independent flow regulator. The pressure loss of the six-port valve is determined from the Cv value of the flow regulator in the design point (network with the higher flow rate) and the kvs value of the valve with the dominant flow rate in the calculated network. The dimensioning of the six-port valve with control group is done with the network with the largest mass flow.

Neutral, manufacturer-specific and VDI valves can be assigned. If you haven’t preselected from Valve Preselection, a neutral six-port valve is used. If you have multiple valves in the preselection, a valve suitable for the general conditions will be automatically selected.

In order for the pipe sections downstream from the six-port valve to be registered and calculated by both disciplines, the supply from valve to consumer must be constructed in the System Class Heating/Cooling Supply, and the return from consumer to valve in the System Class Heating/Cooling Return.