Motorized valve actuator SR2 series

90°modulatingball

SINTESI ACTUATOR – FAST BIDIRECTIONAL HEATING / COOLING / SANITARY WATER MODULATING functioning, with 1 extra free micro switch on opening 3 points control actuator without relay Class protection: IP54 Operating time: 15 sec for 90° rotation – 5Nm This valve body provides a 2-way motorized bail valve with equalper-centage adjustment curve. which operation is shown below: In general, the thermal exchange based on the flow rate is described by a typically non-linear relation which tends to become saturated as the flow rate raises. In the initial phase, the trend is partially mitigated by the natural ope-nmg feature of the bail valve, whereas in the final stage of the ope-nmg movement there is an inversion which does not allow the offset-ting to corne to completion. Thanks to COMPARATOS ADJUSTMENT DISK you will get an equal-percentage overall characteristic curve for the valve. Thanks to the new feature. the offsetting is such that the trend between the magnitude of the thermal exchange and the openmg degree of the valve is almost Imear. Ifs easy to see that the stability of the adjustment System is positively affected by the action of the constant-gain actuator.