electrically operated valve

Electric Actuator Dn15 Floating Control Dn 25 Motorized Ball Valve Small

Service

1. Provide your technical requirements and drawings
2. Get primary reply from us within 12 hours
3. Get technical solution and quotation from us within 24 hours
4. Technical solution and quotation confirmation
5. Provide samples if necessary
6. Contract review and signing
7. Arrange production and shipment
8. After sales service

Description

DC motorized ball valve consists of on/off type or 3-point type actuator and W8BV… series ball valve,which have compact structure,stable operation,excellent capacity of water stoppage, large water flow rate, zero dirt block and low torque. DC motorized ball valves are widely used in HVAC system, heating system, water treatment system and some industrial equipment. 

Application

HVAC system, heating system, Water treatment system, Industrial equipment.

Operational mode

DC motorized ball valve is motor-operated by a type of WRA-42…, and WRA-42…A actuator. The actuator is controlled by a modulating on/off or 3-point control system and move the ball of the valve, to the opening position dictated by the control signal.

Technical data

Valve body:

Medium: cold/hot water, with 50% glycol         Temperature of medium: 2°C...90°C

Rated pressure: PN20                             Pipe connector: internal thread                              

Ambient temp. range: -20…+70°C;0…95%RH    Size: 1/2’’, 3/4’’ and 1’’     Valve type: 2-way and 3-way

Material

Valve body: forged brass, Hpb59-1                  Seal: ball: EPDM+PTFE, with double O-ring

Ball: nickle-plated brass                              stem: EPDM O-rings, with double O-ring

Actuator

WRA-42…   DC3/6-12/24V, 3-point

WRA-42…A   DC3/6-12/24V, on/off

Output torque: 2N.m      Angle of rotation: 90°

Protect rank: IP55/IP54        On/off time: 2-12S

Function (3-point or on/off type)

The actuator is controlled by a modulating on/off or 3-point control signal, using reversible synchronous motor and gear speed reducer drive to fix and lock.

WRA-42… 3-point type

Brown wire is power on                  Valve open

Black wire is power on                    Valve close

Brown or black wire is power off          Valve keep the current position

Blue wire is connected to the null wire.

Also can be used as on/off type.

WRA-42…A on/off type

Blue wire is the control wire.        Power on: valve open, power off: valve close 

Black wire is connected to the com.          

Brown wire is connected to the power wire.

Only can be used as on/off type.

Installation:  

Insert the valve stem to the bottom of the actuator, and insert 2 pin, located in the bottom of the actuator to the valve’s mounting hole. Then screw down the brass cap nut  

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