WRA-22..(S)

Fast running control ball valve consists of WRA-22..S series stepping motor actuator and W8BV... series ball valve. Equal percentage flow characteristic guarantees the valve performances of stability. Stepping motor control ball valve. The characteristic of it is accurate,fast,strong anti-interference. It is a typical digital control mode.

They are widely used in HVAC system, heating system, water treatment equipment, and water running control in industrial automation, such as: AHU, flesh air-handling unit, differential pressure control unit and heat exchanger for flow regulation and on/off control.

Operational mode

Winvall motorized control ball valve is motor-operated by a type of WRA-22..S series actuator. The actuator is controlled by a modulating on/off,3-point or proportional control system and move the ball of the valve, to the opening position dictated by the control signal. The standard product is 0-10VDC proportional control ,on/off or flowing point but can be customized according to customer requirements quickly dc switch proportion,floating control products.

Technical data

Valve body:

Medium: cold/hot water, with 50% glycol                         Temperature of medium: -10°C...120°C

Rated pressure: PN20                                                                Pipe connector: internal thread                              

Ambient temp. range: −5…+60°C；0…90%RH    Size: G 1/2’’ - G 2’’

Valve type: 2-way and 3-way                                   Flow characteristic: equal percentage, on/off

Actuator:

Power: 24VDC /AC                                                             Torque: 4.0/3.0N.m

Control Type:Proportional control                                     Running time: 35S/8S

Protect rank: IP67

Valve body 

Brass Material

Valve body: forged brass, Hpb59-1 

Ball: SS304, chrome-plated brass              

Seal: EPDM+PTFE                          

stem: FKM O-rings, with 3 O-ring     

Actuator 

Material

Shell: PC+10GF   Rotating shaft: POM

Actuator to match body size：1/2",3/4",1"

Wiring Diagram