Optibal W6
Simple heating and cooling control

Pleasant room climate
Optibal W6

For precise control of heating and cooling in a four pipe system, you use our Optibal W6 six-way ball valve. Until now, conventional installations of such a system with heating/cooling ceilings or fan coils required many individual control components for switching between heating and cooling and for room temperature control.

The Optibal W6 six-way ball valve takes over control via a new modular fitting and with a separate characteristic line for heating and cooling. It consists of two three-way ball valves that are connected to each other via a common rotary axis. The Optibal W6 takes over the tasks of up to four straight valves. Thanks to its compact, well thought-out design, you can considerably reduce not only the space required but also the material and installations costs. The problem solver also convinces in design and was awarded the German Design Award Special 2019.

Modular and compact fitting

Low installation effort

Durable Oventrop quality

The advantages of the Optibal W6

Replaces up to four two-way valves
Easy switching between heating and cooling
Automatic hydronic balancing in conjunction with AQ or Cocon QTZ valves
Integration into the building management system possible

Different kvs values for heating and cooling
49 possible kv value combinations with only three item numbers
Kv value can be subsequently changed on site without replacing the fittings
Time saving installation

Application examples

Four pipe system with OPTIBAL W6

Optibal W6 as change-over and control ball valve with kvs orifices.
Integration into the building management system is also possible.

A Optibal W6 Six-way ball valve

B Aktor R ST L Rotary actuator

Four pipe system with OPTIBAL W6 aND AQ VAlves

The AQ valve has a pressure independent control function. Automatic hydronic balancing takes place for each position of the six-way ball valve. The volume flow is thus kept constant regardless of pressure fluctuations. The presetting of the AQ valves limits the volume flow to a maximum value. The kvs orifices are not required.

A Optibal W6 Six-way ball valve

B Aktor R ST L Rotary actuator

C AQ Pressure independent valve (one each for heating and cooling)

four pipe system with oPTIBAL W6 aND COCON QTZ

For larger volume flows, Cocon QTZ pressure independent control valves can be used. The Cocon QTZ is installed in the return of the consumer. The room temperature is controlled via the actuator and the Cocon QTZ. The Optibal W6 works as change-over valve. The kvs orifices are not required.

A Optibal W6 Six-way ball valve

B Aktor R ST L Rotary actuator

C Cocon QTZ Pressure independent control valve

D Aktor M ST L Electromotive actuator

Versions

OPTIBAL W6 PN 16

Body made of dezincification resistant brass. Pipe connection DN 15 external thread with Eurocone according to EN 16313, DN 20 external thread with internal cone.

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AKTOR R ST L

Rotary actuator for Optibal W6 six-way ball valve. 24 V, proportional control with 0 - 10 V or on/off control via 24 V forced control. With position feedback signal 0 - 10 V. Angle of rotation: 90°. With manual adjustment.

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