SR203 FCU used electric solenoid valve for HVAC

Product description:

SR203 electric two-way valve consists of SR203 actuator and SR203 brass valve, used in controlling the cold or hot water pipe on or off in air conditioning system, for the purpose of controlling room temperature. valve is driven by hysteresis synchronous motor, returned by spring. When the valve does not work, it’s in normally closed state, when it works, A opening signal is provided by thermostat, to make the electric valve connect AC power and become opening state, cold water or hot water flows into the fan coil, to provide cool air or hot air for room; once the room temperature reaches the setting point of thermostat, the thermostat will shut down the power of electric valve and the spring will return to make the valve closed, thus cutting off the flow of water into the fan coil. As the valve closed or open, room temperature is always maintained at the thermostat setting temperature range.

SR203 electric valve’s actuator and valve itself are installed by threaded connection, So, the actuator can be installed after the valve is installed. 

Features:

Built-in auxiliary switch has the function of power-off in place, longer motor life

Actuator control by using three-wires one control line type or three-wires two control line type, the motor power will be automatically cut off when in place

More convenient hand gear in actuator

The actuator can be installed in any direction for easier installation and wiring

Large aperture design, greater flow, no scale, close differential pressure when shut-off

Closed forging process, forging than ordinary strength of up to more than 2 times

The interface can be connected to a threaded pipe, copper pipe and PPR composite pipe

Personalized solutions, fashionable colors to choose from

Sealing seat material is 304 stainless steel, the bowl appearance design makes the sealing sheet under pressure to fall off not easily to fall off or be deformed.

Material Description:

Body material: Forged Brass

Actuator housing: ABS engineering plastic

Driven motor: the one-way motor

Sealing material: EPDM

Technical Parameters:

Valve size: DN15, DN20, DN25

Connection: threaded connection

Valve structure: two-way, three-way

Media: hot / cold water and 60% ethylene glycol

Pressure: PN20

Close differential pressure: 0.2 ~ 0.3Mpa

Power supply voltage: AC220V ± 10%, AC24V, 50 / 60HZ

Consumable power: 4VAC

Actuator thrust: 200N

Stroke: 4mm

Run mode: On or Off

Valve action time: Opening time: ≤18S Closing Time: ≤7S

Model and size

SPECIFICATION