687 MIX

3-WAY ROTARY MIXING VALVE KIT

The control kit Art. 687 MIX, thanks to very small dimensions, can be set up straight into the distribution box of radiant heating systems. Its design allows the mounting on the right side or on the left side of the manifold.

The unit for 1/2” (130 mm) circulating pumps consists of:
• Compact 3-way rotary mixing valve with very high hydraulic performances (Kvs 6.8).
• It can be motorized by the ModvlvS range of actuators or by others on sale;
• Pre-wired high efficiency synchronous circulating pump (for the models that include it);
• Thermometer 0÷60°C;
• Air-vent valve;
• Safety thermometer pit with fixed setting temperature 55°C (it can be ordered separately);
• Ready for the addition of differential by-pass valve (it can be ordered separately);
• Direct connection to the manifold or by means of an eccentric piece 15 or 30 mm (manifold misalignment between the supply and the return).

Centre distance 210 mm
PN 10, maximum temperature 110°C (unit without circulating pump).
Connection to the manifold: 1” Male swivel connection or 1” swivel nut;
Connection to the circuit: 1” Male with 96 mm centre distance.

FIELD OF USE
For power up to 11 kW (with ∆t 8 K) and maximum flow rate 1200 l/h.
Kvs value: 4.6
Approximate data calculated with a 6 m head circulating pump. For an accurate sizing or for higher flow rates, please refer to the technical section.

Codici: see table below.

Available circulating pumps:
Wilo Para 15/6 SC (P6)
Wilo Para 15/8 SC (P8)