LEFOO LFTEV — Thermostatic Expansion Valves

Thermostatically actuated refrigerant metering valves that regulate evaporator feeding from bulb and superheat conditions, with multiple refrigerant and equalisation configurations.

Technical specifications

Refrigerant options	Manufacturer table includes R22, R407C, R134a, R404A/R507 groups
Maximum working pressure	46 bar
Operating temperature	−40 to +60 °C (manufacturer’s general family range)
Evaporation temperature	−40 to +10 °C
Equalisation fitting	1/4-in ODF or 6 mm ODF for external equalisation options
Capillary	Manufacturer selection examples list 1.5 m
Orifice	Interchangeable flow-port components, model dependent

Manufacturer values are model-family specifications and depend on the selected order code. Check current documentation before design or procurement.

Engineering & selection notes

A thermostatic expansion valve must be selected by the actual refrigerant, evaporator capacity, pressure drop, intended superheat and balance/equalisation design. The LFTEV family contains multiple model codes for different refrigerants and internal versus external equalisation. A high-level family maximum is not a universal rating for every distributor or installation.

Applications & compatibility

Superheat-based evaporator feeding in refrigeration and air-conditioning systems; check the bulb mounting position, orifice, evaporating pressure and external equaliser connection.

Manufacturer & references

Manufacturer: LEFOO — manufacturer profile. This is an independent technical profile and does not imply a distribution arrangement.

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