TH THW Thermal Expansion Valves

  • Product Description

  • Product Model

  • Technical Parameters

  • Product Description:

    · T-type expansion value is a novel thermostatic expansion value with replaceable valve element

    · T-type expansion value is used for adjusting the supply quantity of liquid refrigerant in evaporator

    · T-type expansion value is particularly suitable for supplying liquid refrigerant in dry-type evaporator

    · T-type expansion value has autocontrol through regulating the-superheating degree of refrigerant.

  • Product Model:

    Replaceable element model:

    Valve element No. Nominal refrigerating capacity(TR) Nominal refrigerating capacity(KW)
    R22 R134a R404A R22 R134a R404A
    No.1 0.7 0.5 0.45 2.5 1.8 1.6
    No.2 1.0 0.8 0.6 3.5 2.6 2.1
    No.3 1.5 1.3 1.2 5.2 4.6 4.2
    No.4 2.3 1.9 1.7 8.0 6.7 6.0
    No.5 3.0 2.5 2.2 10.5 8.6 7.7
    No.6 4.5 3.0 2.6 15.5 10.5 9.1

    · The valve element can be exchanged with the valve element of Danfoss in corresponding number and can’t exchange with other valve elements of other plants.

    Model of main value body:

    Refrigerant Model Pressure Balance Thread Nominal Refrigerating Capacity
    Intet Outlet Outside Balance End TR KW
    R22 TH22 Internal balance 3/8 SAE 1/2 SAE
    0.7~4.5 2.5~15.5
    TH22W External balance 1/4 SAE
    R134a TH134 Internal balance
    0.5~3.0 1.8~10.5
    TH134W External balance 1/4 SAE
    R404A TH404 Internal balance
    0.45~2.6 1.6~9.1
    TH404W External balance 1/4 SAE

    ·The working condition of nominal refrigerating capacity is; evaporating temperature 5℃; condensing temperature 35℃; superheating degree 3.5℃; superheating degree 4℃
    ·other refrigerants can be customized based on client’s requirements

  • Technical Parameters:

    Applicable Refrigerants: R22、R134a、R404A
    Applicable Medium

    R22: -40℃~+10℃; R134a:-30℃~+10℃;R404A:-40℃~+10℃

    Norminal Capacity: 2.5KW~15.5KW、1.8KW~10.5KW、1.6KW~9.1KW
    Adjustable Range of Superheat: 2℃~8℃
    Ex-Works Static Heat Adjustment: 3.5℃
    Maximum Working Pressure: 2.0MPa
    Maximum Testing Pressure: 3.0MPa

    · Capillary length of T-type thermostatic expansion valve:1.5m in atandard; under special situation,it can be customized based on clients' requirements.


    1、Gas tank head piece; 2、regulating spring; 3、spring seat; 4、transfer bar component; 5、valve body; 6、dust cap; 7、O-type ring; 8、regulating stem; 9、value bonnet; 10、valve element(No:1#~6#); 11、filter component; 12、valve element cover

    1、Gas tank head piece; 2、regulating spring; 3、spring seat; 4、transfer bar component; 5、valve body; 6、dust cap (4 points); 7、O-type ring; 8、regulating stem; 9、value bonnet; 10、valve element(No:1#~6#); 11、filter screen component; 12、dust cap (2 points);13、dust cap(3 points);14、valve element cover; 15、external balance interface