PUMP GROUP WITH 3-D MIXING VALVE DGP-Z-25/180
Non-return valve - 20 mbar Ball valve with non-return valve (2) prevents natural circulation of the liquid as a result of temperature differences (gravi- tational circulation). The non-return valve can be locked in the open position by turning the knob by 45°.
1. Ball valve with a thermometer on the supply of the system
2. Ball valve with non-return valve and thermometer on return from the system
4. Recurculation pipe