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  2. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve or thermostatic expansion valve (often abbreviated as TEV, TXV, or TX valve) is a component in vapor-compression refrigeration and air conditioning systems that controls the amount of refrigerant released into the evaporator and is intended to regulate the superheat of the refrigerant that flows out of the evaporator ...

  3. Refrigerant reclamation - Wikipedia

    en.wikipedia.org/wiki/Refrigerant_reclamation

    The EPA defines refrigerant reclamation as "Reclaim refrigerant means to reprocess refrigerant to at least the purity specified in appendix A to 40 CFR part 82, subpart F (based on AHRI Standard 700–1993, Specifications for Fluorocarbon and Other Refrigerants) and to verify this purity using the analytical methodology prescribed in appendix A ...

  4. Worthington Enterprises - Wikipedia

    en.wikipedia.org/wiki/Worthington_Enterprises

    The first was the acquisition of German valve and component company PTEC Pressure Technology GmbH. The second was the acquisition of General Tools & Instruments Company LLC (General Tools), a provider of over 1,200 feature-rich, specialized tools, primarily for measuring and marking, found in supply houses, home centers, and hardware stores ...

  5. Reversing valve - Wikipedia

    en.wikipedia.org/wiki/Reversing_valve

    A reversing valve removed from an HVAC heat pump for replacement. A reversing valve is a type of valve and is a component in a heat pump, that changes the direction of refrigerant flow. By reversing the flow of refrigerant, the heat pump refrigeration cycle is changed from cooling to heating or vice versa. This allows a residence or facility to ...

  6. Rotolock valve - Wikipedia

    en.wikipedia.org/wiki/Rotolock_valve

    Specialized versions are made for specific purposes, such as the Rotolock valve (a stem-type valve also called a Rotalock valve [3]), which is a special refrigeration valve with a teflon ring seated against a machined surface enclosed by a threaded fitting; this valve allows the technician to remove all refrigerant from the compressor without ...

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