control ball valve is motor-operated by a type of W AV4-3 04 actuator. The actuator is controlled by a modulating proportional control system and move the ball of the valve, to the opening position dictated by the control signal.
Application
HVAC system Heating system Water treatment system Industrial equipments
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: − 5…+60°C; 0…90%RH Flow characteristic: equal percentage, on/off
Material
V alve body: forged brass, Hpb59-1 Seal: ball: EPDM+PTFE
Ball: stainless steel brass Stem: EPDM
Valve connector: PC Valve spindle: aluminum alloy
| Model No. | DN(mm) | Inch | Kvs(m 3 /h) | Pvmax ( M Pa) | Ps (KPa) |
| WCBS325 | DN25 | 1 | 10.86 | 2.5Mpa | 1400 |
| WCBS332 | DN32 | 1 1/4 | 16 | 2.5Mpa | 1400 |
| WCBS340 | DN40 | 1 1/2 | 25 | 2.5Mpa | 1400 |
| WCBS350 | DN50 | 2 | 40 | 2.5Mpa | 1400 |
Actuator
Function ( proportional type )
The actuator is controlled by a modulating proportional control signal, using high transmitting ratio gear drive to fix and lock.
| Model No. | Working Voltage | Actuator type | Output torque | Consumption | Valve body |
| WVA4-306 | 24VAC/DC±15% | 3-point | 0-10V/4-20mA | 6VA | DN25,DN32,DN40,DN50 |
Wiring Diagram
| WRA-53 Series | 220v ON/OFF, 3-Point |
| WRA-63 Series | 220V/110V/24V ON/OFF, 3-Point |
| WVA4-.. Series | 220V/24V ON/OFF, Proportional |
| WRA3-.. AC Series | 220V/110V/24V ON/OFF, 3-Point |
| WRA-42 DC Series | 24V/12V/3V ON/OFF, 3-Point |
| WRA3-.. DC Series | 24V/12V/3V, ON/OFF, Proportional |





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Step 1
Payment and order readiness
Minimum order: 2 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
16 days
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Step 3
Packaging and dispatch
Ocean freight via Maersk · Approx. shipping fee: $ 0.84 for 1 unit · Transit time: Est. 17-24 days
Final packing, freight, and delivery dates are confirmed before dispatch.
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