EX series Condensing Pressure and Liquid Regulator

R22, applications.

18kW --- EX5 Liquid mass flow control and EXD-U.. universal controller.
43kW --- EX6 Liquid mass flow control and EXD-U.. universal controller.
153kW --- EX7 Liquid mass flow control and EXD-U.. universal controller.
463kW --- EX8 Liquid mass flow control and EXD-U.. universal controller.

EX series Suction Pressure / Crankcase pressure regulator

R22, Minimum Evaporating Temperature -50 deg C.

3.9kW --- EX6 capacity control and EXD-U.. universal controller
14kW --- EX7 capacity control and EXD-U.. universal controller
42kW --- EX8 capacity control and EXD-U.. universal controller

EX Series Hot gas bypass regulator components

R22, Minimum evaporating temperature -100 dec C.

4.9 kW EX4 capacity control and EXD-U.. univeral controller
16kW EX5 capacity control and EXD-U.. univeral controller
37kW EX6 capacity control and EXD-U.. univeral controller
131kW EX7 capacity control and EXD-U.. univeral controller
399kW EX8 capacity control and EXD-U.. univeral controller

Electrical control valves and applicable controllers

Refrigeration, Air-Conditioning, Water Chillers.

Minimum evaporating temperature -100 deg C
2kW ....16.5kW for R22, EX4 expansion valve, EC3-X.. Superheat controller and EC3-3.. cold room controller.
5kW ....50kW for R22, EX5 expansion valve, EC3-X.. Superheat controller and EC3-3.. cold room controller.
15kW ....120kW for R22, EX6 expansion valve, EC3-X.. Superheat controller and EC3-3.. cold room controller.

Minimum evaporating temperature -50 deg C
35kW ....330kW for R22, EX7 expansion valve, EC3-X.. Superheat controller and EC3-3.. cold room controller.
90kW ....880kW for R22, EX8 expansion valve, EC3-X.. Superheat controller and EC3-3.. cold room controller.

Same valve used for all refrigerants: R22, R134a, R407C, R404A, R507, R410A, R744 etc)

* Not released for use with caustic, poisonous or flammable substances.

Universal stepper motor control EXD-U

The universal stepper motor control EXD-U is used in all other commercial refrigeration and air-conditioning applications. Opening of the electrical control valve follows exactly the analog input signal of 0 ....10V or 4.... 20mA. The digital input signal is used to close the valve independently from analog input. When the digital signal switches the controller on again, the valve opens to the opening specified by the analog input. The optional selectable 'Start mode' first opens the valve 1/3 opening and then to the analog set point.

Advantages of EX Series Electrical Control Valves - Part 1

Valve seat and slider are made out of solid ceramic. Positive shut-off function eliminate the need for additional solenoid valve. The special form of the valve slide provides for proper floating through the valve and highly linear capacity characteristic between 10% and 100% of maximum capacity.

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