Motorized Control Valves (MCV)
The Hansen Motorized Control Valve is a truly unique motor operated valve which eliminates the most common concern of other motor operated valves—valve stem seal leakage. The Motorized Control Valve has no valve stem seal because the non-electric rotor is enclosed in a stainless-steel cartridge which contains the fluid pressure. The electric stator is outside the stainless steel can, and is isolated from the fluid in the valve.
The valve is hermetic and has a magnetic coupling motor. The actuators are designed for hard ambient conditions like high humidity and low temperatures.
The main applications include:
- Liquid make-up to accumulator
- Liquid injection to compressors
- DX evaporators
- Temperature or pressure control
- Low or high side level control
- Slow opening and closing: suction stop valve
- No pressure drop: gravity drain
- 4-20 mA or floating point control
Technical Specifications:
- Size: DN 20- DN 50
- KV values: 1.8 – 40 (m3/h)
- Pressure: PN 28 with flanges; 55 bar welding connections
- Temperature: -60ºC/+115ºC (standard)
- Temperatures below –60ºC: needs to be consulted
- Power supply: 24 VCA / VCC
- Control signal: 4-20mA, 0-20mA, 0-50VDC, 0-10VDC, 1-6 VDC
- Position signal: 4-20mA, 0-20 mA
- Suitable for all standard refrigerants according to EN378-1 including NH3 and CO2. The use of flammable and especially corrosive fluids needs to be priorly consulted.
