Automatic Control Equipment by Emerson

EX series

(Electrical control valve EX series)
(MORIKAWA MVD-01)
(EMERSON EC3-X33)

Available refrigerants

HCFC/HFC/CO2/HFOHFO blended mineral oil/POE lubricant

Single-flow body size

EX4-I21:3/8×5/8
EX5-U21:5/8×7/8
EX6-I21:7/8×1-1/8
EX7-I21:1-1/8×1-3/8
EX8-U21:1-3/8×1-3/8

Maximum working pressure [PS]

EX4/5/6/7:6.0MPa
EX8: 5.6 MPa (UL standard 4.5 MPa)

Description

① EX controls refrigerant freely

EX series electrical control valves driven by stepper motor, control refrigerant freely. Fully-sealed stainless steel valve with no external leakage.

② Driven by MVD-01 and sequencer

Highly accurate control is achieved by combining EX series with the driver MVD-01 (by MORIKAWA) and using the existing controller, such as sequencer.

③ Driven by EC3-X33, if a sequencer is not available

If there is no existing controller, use EMERSON’s superheat controller EC3-X33 together with EX series. (EMERSON’s temperature sensor, pressure sensor, etc. also required.)

④ Contribution to multiple applications

Ex Series are classified into 5 types(EX4/EX5/EX6/EX7/EX8)and cover a wide range of capabilities. Available as hot gas defrost, evaporation pressure control valve, and various pressure control valves.

Temperature Type Expansion Valve (Basic Terms, Technical Materials, Capacity Guide, Correction Factors)

Temperature type expansion valve lowers the pressure of the liquid refrigerant leaving the condenser to a level where the refrigerant is evaporated easily, and ensures an optimal flow rate of the evaporator. According to the capacity of the compressor changing with increase/decrease of the cooling load, the valve maintains the superheat level of the refrigerant gas within a specified range to prevent excessive heating and liquid back flow. Basic terms, technical materials, capacity guide, correction factors of the capacity and other information of the temperature type expansion valves are described in the catalog. Please refer to the catalog for details.

Product name

TI/TIE/TILE type expansion valve (Temperature type expansion valve / interchangeable cages)

Coupling

(Inlet) 3/8×(Outlet) 1/2 For method of connection, refer to the details.

Available refrigerants

R22/R134a/R404A/R407C/R410A

Description

TI Series temperature type expansion valves are compatible with a wide range of cooling loads by changing 8 types of valve cages(orifice). Suitable for a variety of applications ranging from refrigeration to air conditioning heat pump.

Product name

T series expansion valve (Temperature type expansion valve / take-apart type)

Coupling

For connections and method of connection, refer to the details.

Available refrigerants

R22/R134a/R404A/R407C

Description

T Series take-apart temperature type expansion valves consist of three main parts: cage(orifice), power assembly and flange. Easier maintenance as a single component alone can be changed. It is classified into 5 types based on the type of cage(orifice): TCLE, TJR, TER, THR, and TMR.

What Is a Solenoid Valve? (Basic Terms, Technical Materials, Correction Factors)

Solenoid valves are opened or closed by using a principle that the plunger is lifted from the valve seat when current is applied, and the plunger returns to the valve seat when current is shut off. The working principles are mainly two types: direct- acting type and pilot- operated type. The direct- acting valve is opened when electromagnetic force lifts the plunger from the valve seat directly. The pilot-operated valve is raised by the fluid pressure of the refrigerant (differential pressure). Electromagnetic force is used only to open the valve seat. Basic terms, technical materials, capacity correction factors and other information of the solenoid valves are described in the catalog. Please refer to the catalog for details.

Product name

100RB solenoid valve (Direct-acting two-way solenoid valve)

Coupling

1/4 – 3/8 (Brazed)

Available refrigerants

R22/R134a/R404A/R407C

Description

100RB solenoid valve is a direct-acting two-way solenoid valve. Installed in either horizontal or vertical line. Mainly used for liquid line and hot gas bypass. Dedicated AMG coil is separately required.

Product name

200RB solenoid valve (Pilot-operated two-way solenoid valve)

Coupling

3/8 – 5/8 (Brazed)

Available refrigerants

R22/R134a/R404A/R407C

Description

200RB solenoid valve is a pilot-operated two-way solenoid valve. Installed in either horizontal or vertical line. Mainly used for liquid line and hot gas bypass. Dedicated AMG coil is separately required.

Catalog

Product name

240RA solenoid valve (Pilot-operated two-way solenoid valve)

Coupling

5/8 – 1-5/8 (Brazed)

Available refrigerants

R22/R134a/R404A/R407C

Description

200RA solenoid valve is a pilot-operated two-way solenoid valve. Installed in either horizontal or vertical line. Mainly used for liquid line and suction gas line. Dedicated AMG coil is separately required.

Product name

AMG electromagnetic coil (Solenoid valve coil)

Rated voltage

24V/120V/200V

Description

AMG solenoid coil is a molded coil with a wiring box, and can be used commonly for solenoid valves except for some special products. Coils are not included in EMERSON’s solenoid valves. Please purchase this AMG coil together with the solenoid valve.

About Dryer

Dryers are available in two types: Liquid line dryer and suction line filter dryer. The liquid line dryer mainly removes water and foreign substances to prevent block or obstruction of the expansion valve. The suction line filter dryer mainly removes foreign substances to prevent damage of the compressor. EMERSON provides the dryers to be brazed directly on the pipe and the dryers with interchangeable cores that allow the internal drying agents to be replaced after being brazed. Functions of the dryers, selection guide and other information are described in the catalog. Please refer to the catalog for details.

Product name

EK dryer (Dryer for liquid line)

Coupling

1/4 – 1-1/8 (Brazed)

Available refrigerants

R22/R134a/R410A/R448A/R449A/R404A/R407C/R744

Description

EK dryer is a one-way dryer for liquid line. The drying agent is formulated so that it removes acid as well as absorb high amount of water. The filter at the inlet removes solid foreign substances first, making the surface of the drying agent work more effectively.

Product name

BFK dryer (Bi-directional/byflow)

Coupling

1/4 – 7/8 (Brazed)

Available refrigerants

R22/R410A/R404A/R744

Description

BKF dryer is a bi-directional dryer designed for heat pump air conditioners. It protects a heat pump when an air conditioner runs in the summer and winter. Installable at any position. The dryer removes water, acid, and solid foreign substances effectively.

Catalog

Product name

ASF suction filter (Suction line filter)

Coupling

5/8 – 1-5/8 (Brazed)

Available refrigerants

R22/R134a/R410A/R448A/R449A/R404A/R407C/R744

Description

ASF suction filter is designed to protect a compressor from sludges and solid contaminants. Especially, it prevents entry of foreign substances, such as metal pieces, chips, steel or iron oxide, polishing powder, flux, dirt, into the compressor.

Product name

STAS-T/STAS-SV (Dryer with interchangeable core)

Coupling

5/8 – 1-5/8 (Brazed)

Available refrigerants

R22/R134a/R410A/R448A/R449A/R404A/R407C/R744

Description

STAS-T is a liquid line dryer. Used with a separately sold dryer core UK-48, HX-48 or W-48 installed. STAS-SV is a suction line dryer. Used with a separately sold filter core F-48R incorporated.

Catalog

(The above shows a photo of UK48. )
Product name

UK-48/HX-48/W-48/H-100F-48R
(Core for dryer with interchangeable core )
Liquid line dryer core
Suction line filter core

Coupling

5/8 – 1-5/8 (Brazed)

Available refrigerants

R22/R134a/R410A/R448A/R449A/R404A/R407C/R744

Description

The dryer cores and the filter cores are used for STAS and MORIKAWA’s CAO. UK-48, HX-48, W-48, and H-100 are liquid line dryer cores. F-48R is a suction line filter core used for STAS-SV only. Please order the dryer core or the filter core separately from the dryer body.

Product name

AMI sight glass (Moisture detector)

Coupling

1/4 – 2-1/8

Available refrigerants

R22/R134a/R410A/R404A/R407C/R744

Description

AMI sight glass is designed to determine the moisture content of the refrigerant in the liquid line accurately. Highly sensitive lens assembly changes its color according to the change of the moisture content. The wet or dry conditions are easily determined by comparing the color with the color label. The connections are available in brazed and flare. The lens assembly is available alone as a spare part.

Product name

PT5 pressure transmitter (Pressure converter)

Coupling

1/4in flare female thread (7/16-20 UNF)

Available refrigerants

HCFC/HFC(CFC)

Description

PT5 pressure transmitter senses the pressure and converts the pressure into a linear electrical signal. Current output of standard 4-20mA allows for easier interface with a general signal process system. In addition, an access valve for the connection is available as an option.

Catalog

Product name

AAS accumulator(Liquid separator)

Coupling

1/2 – 1-5/8 (Brazed)

Available refrigerants

R22/R134a/R410A/R448A/R449A/R404A

Description

AAS Accumulator to be installed immediately before the compressor, temporarily stores a mixture of oil and liquid refrigerant and returns the mixture to the compressor gradually to prevent damage of the compressor caused by liquid back flow. MORIKAWA’s HAQ is also available as a larger accumulator.

Product name

AWZ oil separator (Oil separator)

Coupling

1/2 – 1-5/8 (Brazed)

Available refrigerants

R22/R134a/R410A/R404A/R407C

Description

AWZ oil separator separates the refrigerator oil contained in the refrigerant ejected from the compressor and returns it to the compressor directly. Consequently, it maintains proper amount of lubricant supplied to the compressor, prevents compressor burn-out, and improve the lower efficiency of the evaporator caused by the oil films.

Product name

OM3/OM4/OM5 (Oil level controller)

Coupling

Refer to the catalog for specifications

Available refrigerants

Fluorocarbon/CO2

Description

OM3-OM5 are electronic oil level management systems with alarm and compressor shut- down functions. Allows you to visually check the oil level as well as the sight glass, and indicates the oil level status and related information by LED. Comprehensive alarm function including compressor shut- down fully protects the compressor.