TKFM SR204 HVAC two way three way electric control valve for FCU system

Product description:

SR204 Electric Dynamic Balancing valve is a new product for fan coil temperature control in HAVC system. It combines dynamic equilibrium and electric switch functions in one compact, high control precision, stable operation.SR204 Electric dynamic balancing valve consists of an electric actuator and a dynamic balancing two-way valve. Widely used in HVAC fan coil system it can also be used in other systems with similar functional requirements.

Features:

Electric actuator is used in the beginning of the valve or as PDM execution control part to control closed loop valve double-way and stability for water heating system or central air conditioning water system, directly installed in water heating system on the backwater line or the thermostatic valve, when the actuator power off, the valve will be closed. Paraffin thrusters, the PTC heating driven pusher with spring reset function. Work noise-free operation, location, or the degree of opening stroke indication.

Functions:

1.Electric switch function: according to control signal from the electric room thermostat, switch function will control actuator to turn on or off.

2.Dynamic Balancing function: When the valve is opened in the working pressure range, the dynamic balancing system changes as the differential pressure changes, the flow rate remains  balance and not influenced by system pressure fluctuations.

3.Constant flow or the setting flow: flow rate can be set at the factory according to the air conditioning equipment, the flow rate was maintained as the design of flow rate required by the end device.

Material Description:

Body material: Forged Brass

Seals: EPDM

Valves guts: stainless steel or copper alloy

Spring, stem, valve seat: 304 stainless steel

Actuator parameter

Technical Parameters:

Technical Parameters:

Nuts connection installation is easy, fast, easy removal

Voltage: AC24C, 110V, 220V

Power consumption: 2VA  (consumable power)

Thrust: 110N

Stroke: 3.5mm

Whole distance time: 3 ~ 5min

Opening and closing time: 3min (25 ℃)

Connection Size: M30X1.5 nut

Ambient temperature: -5 ~ 60 ℃

Cable Length : 900mm

Housing material: Flame retardant PC

Shell Protection: IP44

Size range: DN15 DN20 DN25

Working pressure: PN20

Close differential pressure: 4Bar

Working Medium: Water

Medium temperature: 0 ~ 95 ℃

Model and size