Description
SIEMENS
MVL661.20-2.5
2-PORT REFRIGERANT VALVE
1P BPZ: MVL661.20-2.5
2PFS E
2PS 0000022
16D 20180404
AC24V~
45…65Hz
DC 20…30 V
DC 0/2…10 V
DC 0/4…20 MA
-25 T 55
IP65
P MAX: 2500 KPA
FEATURES:
EXPANSION, HOT-GAS AND SUCTION THROTTLE APPLICATIONS WITH ONE TYPE OF VALVE
PS45, STAINLESS STEEL WITH SOLDERING CONNECTIONS
INTEGRATED POWER ELECTRONIC WITH PRECISE POSITION FEEDBACK SIGNAL
FOR SAFETY REFRIGERANTS SUCH AS R22, R134A, R404A, R407C, R410A, R507, AND R744 (CO2). NOT SUITABLE FOR INFLAMMABLE REFRIGERANTS.
TECHNICAL SPECIFICATIONS:
OPERATING VOLTAGE: AC 24 V, DC 20…30 V
OPERATING RANGE: DC 0…10 V, 0…20 MA, DC 2…10 V, 4…20 MA
DEGREE OF PROTECTION: IP65
AMBIENT TEMPERATURE, OPERATION: -25…55 °C
MOUNTING POSITION: UPRIGHT TO HORIZONTAL
PERMISSIBLE OPERATING PRESSURE: 4500 KPA
COUNTRY OF ORIGIN GERMANY
The Siemens MVL661.20-2.5 is a 2-port refrigerant valve for the control side of shipboard refrigeration and air conditioning plant. One valve type covers expansion, hot-gas and suction throttle duties, with built-in power electronics that position the valve from a standard control signal and report its position back. It is built in stainless steel with soldering connections and is intended for safety refrigerants such as R134a, R404A, R407C and R744 (CO2), not for flammable refrigerants. It forms part of the vessel’s control system for cooling circuits. This unit is supplied new without box.
Key Features
✓ AC 24 V or DC 20-30 V supply
✓ Positioning signal DC 0/2-10 V or 0/4-20 mA
✓ Integrated power electronics with position feedback signal
✓ Stainless steel PS45 body with soldering connections
✓ IP65 protection, -25 to 55 °C operating ambient
Marine Applications
✓ Expansion control in provision cold store refrigeration
✓ Hot-gas duty on refrigeration compressor circuits
✓ Suction throttling in air conditioning chiller plant
✓ R744 (CO2) refrigeration systems on reefer and fishing vessels
Technical Support
Prota Marine provides technical support, repair and onboard installation for the 2-port refrigerant valve and the wider marine control system. Our engineers can assist with fault diagnosis on the valve and its control signals, and support commissioning once it is installed in the refrigeration circuit.
