STTC-MV20-24VS : Motorized electric valve (servo) 3/4″ (DN20), 24VAC, NC, AISI 304

The STTC-MV20-24VS is a 24V (AC 50Hz/60Hz) electric motorized valve DN20 made of stainless steel for one cooling channel. It is used for a quick opening and closing of the coolant pipe way of the one tank cooling zone. Each the motorized  valve is connected to the STTC-CB100 connection box. Threads DN20 (G 3/4″) pipe connection . Designed in Czech republic.

When the valve is activated (ON state), then it opens in 6 seconds. Then the valve doesn´t  consume electric current. When the valve is disconnected from the electric voltage then internal electronics recognize it and it automatically closes the valve in 6 seconds – the internal battery powers the motor.

Technical parameters :

• Maximal working pressure : 1 MPa (10 bar)
• Media : liquid, gas
• Pipe connection : DN20 ,  G 3/4″ : female / female
• Electric control : 9-24V AC ~
• Electric connection : directly to STTC-CB100 connection box ( 24V AC ~ )
• Supply voltage : 24V AC 50Hz/60Hz
• Working electric current : 500 mA maximum
• Guaranteed lifetime : 70 000 cycles minimum
• Running time : 5s/90°(opening / closing)
• Material – valve body : stainless steel AISI 304
• Material – ball : stainless steel AISI 304
• Material – motor cover : thermoplast
• Material – seal : FKM, PTFE
• Cable length : 1,5 m
• Moment : 2Nm maximum
• Media working temperature : water from 2°C to 90°C, glycol from -10°C to 90°C
• Working temperature of environment : from 0 to 55°C
• Position indicator : yes
• Insulation class : IP65