Tonheflow motorized valve manufacturer

Tonhe mainly produces motorized shut off ball valve from 1/4" to 2",
Some valves approved NSF61-G, CE, ROHS and other international certification.

DN20 black housing stainless steel motorized ball valve 3 4

DN20 black housing stainless steel motorized ball valve 3 4
Min.Order Quantity: 1 Piece/Pieces
Supply Ability: 5000 Piece/Pieces per Month
Port: ningbo,Shanghai
Payment : T/T, Paypal


Service On Line
Tonhe is a china manufacturer, we focus on mini motorized valve(1/4" - 2"), which are CE, RoHS, IP67 approved, and SS valve NSF61 approved. Our company also SGS ISO9001 approved.
Our A20 4NM electric valve, product features: all stainless steel gear, 5v big torque motor, can be used for client demand big torque when 2NM is not enough for thir system




Technical Parameters:

Valve size BSP/NPT  3/4"
Maximum working pressure 1.0 MPa
Circulation medium Fluid, air
Rated voltage DC5v, DC12v, DC24v
Wiring control methods CR201
Working current ≤500MA
Open/close time ≤5S, ≤7S
Life time 100000 times
Valve Body material Stainless Steel
Actuator material Engineering Plastics
Sealing material EPDM & PTFE
Actuator rotation 90°
Max. torque force 2 Nm/4Nm(Optional)
Cable Length 0.5m,1.5m(Optional)
Environment temperature -15℃~50℃
Liquid temperature 2℃~90℃
Manual override No
Indicator Yes
Protection class IP67

stainless steel motorized valve function

1.Valve Body: 2 Way NPT 3/4" DN20 Stainless Steel. Orifice Size: 20mm Actuator: DC12V DC24v CR201
2.Lead Free, Safe for Drink Water and Food. Suitable For Water, Oil, Gas.
3.Limit Switches Inside, Cut Off Power Automatically When F.O or F.C
4.This motorized valve is a good replacement of the solenoid valve.It can be installed at any angle.
5.Float ball design, no leak, large flow, the valve is bi-directional ball valve.

Assemble drawing


Wiring diagram

CR2 01 Wiring Diagram ( 2 wires control )

motorized valve wire control CR201
·RD connect with positive, the BK connect with negative, the valve closed, the actuator automatically power off after in place , the valve remains fully closed position .
·BK connect with positive, the RD connect with negative, the valve open, the actuator automatically power off after in place, the valve remains fully open position .
﹡Suitable Working Voltage: DC5V/DC12V/DC24V
﹡Exceeding the working voltage is forbidden

CR2 02 Wiring Diagram ( 2 wires control – Spring return in case of the power is failure)

motorized valve wire control CR202
·When SW is closed , the valve open. the actuator automatically power off after in place
·When SW is open, the valve closed, the actuator automatically power off after in place
﹡Suitable Working Voltage: AC/DC9-24V,AC/DC110V-230V,AC/DC9-35V(with manual override).
﹡Exceeding the working voltage is forbidden

CR3 01 Wiring Diagram (3 wires control )

motorized valve wire control CR301
·RD & GR connect with positive, BK connect with negative
·When OPEN( RD) & SW connected , the valve open, the actuator automatically power off after in place , valve remains fully open position
·When CLOSE(GR) & SW connected, the valve closed, the actuator automatically power off after in place, valve remains fully closed position.
﹡Suitable Working Voltage: DC5V/DC12V/DC24V/AC/DC9-35V
﹡Exceeding the working voltage is forbidden

CR3 02 Wiring Diagram (3 wires control )

motorized valve wire control CR302
·RD connect with positive, the BK & GR connect with negative
·SW CLOSED, the valve OPEN, the actuator automatically power off after in place.
·SW OPEN, the valve CLOSED, the actuator automatically power off after in place.
﹡Suitable Working Voltage: DC9-35V
﹡Exceeding the working voltage is forbidden

CR5 01 Wiring diagram ( with feedback signal)

motorized valve wire control CR501
1. RD connect with positive, the BK connect with negative,the valve closed, the actuator automatically power off after in place .
2 BK connect with positive, the RD connect with negative,the valve open, the actuator automatically power off after in place .
3 GR & WT are connect when the valve open fully, YW & WT are connect when the valve closed fully
Suitable Working Voltage::DC5V/DC12V/DC24V
Exceeding the working voltage is forbidden

Valve Actuator gear

our A20 actuator gear is brass(biggest gear) + stainless steel



Our electronic components are basically imported, all choose the better quality of the accessories, such as switches, we use better quality Taiwan switch.

Our company main products:
1)2 way 1/4"-2"
  3 way motorized valve, material: 1/4"-1"
  3 way brass 1/4"-1 1/4"
2)modulating valve (1/4"-2")
3)water leak system with motorized valve(1/4"-2")
4)remote motorized valve(1/4"-1")
5)timer control valve(1/4"-1")
if you need our products contact us freely.

When you inquiry the valve, pls confirm the detail technical data :

1)valve size
2)material, brass or stainless steel or PVC?
3)working voltage
4)wiring diagram
5)thread BSP or NPT?
6)quantity?
7)cable length, 0.5m is OK for you?

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