NXT Series

NXT Series

NXT Series

Product catalog summary
Nomenclature and Features:
The document describes the nomenclature and features of Emerson Climate Technologies' NXT Series Thermal Expansion Valves (TXV) designed for R-410A systems. The nomenclature includes details such as body type, equalizer type, capacity, refrigerant code, connection type, and bleed percentage. Key features include precision superheat control, enhanced power element design, stainless steel construction, compact size, bi-flow capability, balanced port construction, and standard external equalizer.
Specifications:
The NXT Series valves are designed for high efficiency in air conditioning and heat pump applications. They have a maximum working pressure of 700 psig and operate within a temperature range of -20°F to +50°F. The valves are listed under UR/CUR file number SA 5312.
Options:
Options available for the NXT Series include high flow internal check valves, adjustable or non-adjustable superheat, bleed type pressure equalization, and various connection types including ODF and Chatleff. The external equalizer is standard, with different configurations available.
Dimensional Data:
The document provides dimensional data for various connection sizes, including 3/8 ODF, 1/2 ODF, 5/8 ODF, 7/8 ODF, and 1-1/8 ODF, as well as Chatleff connections.
Ordering Information:
Detailed ordering information is provided for adjustable, straight-through body style valves, including refrigerant capacity, check valve presence, bleed percentage, inlet and outlet sizes, bulb cap tube length, and external equalizer specifications. Each configuration is associated with a specific product code number (PCN).
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Catalog excerpts

NXT Series-1

The Emerson NXT Series is a balanced ported valve designed for high efficiency R-410A air conditioning and heat pump applications. NXT Series valves operate over a wide range of conditions and applications, while offering excellent performance, superior reliability, and unparalleled valve life. Thermal Expansion Valves Precision superheat control optimized for R-410 A systems Enhanced power element design offers extended valve life Stainless steel power element eliminates corrosion and prevents valve failure Laser etched identification markings for permanent legibility Hermetic, leak-free construction of all joints Compact size allows installation in limited spaces Bi-Flow capability allows one valve to control the superheat in both cooling and heating modes for close-coupled or packaged heat pump applications Balanced port construction compensates for changes in operating pressures due to varying ambients, gas defrost, heat reclaim, or widely varying evaporator loads External equalizer is standard Screens on ODF inlet connections • Maximum working pressure (MWP): • R-410A operating range: • UR/CUR file number: • High flow internal check valve (1-7 tons) allows reverse flow for heat pump applications, eliminating the need for external check valve and improving overall system efficiency • Adjustable or non-adjustable superheat • Bleed type pressure equalization available to accommodate PSC type compressors • ODF connections are standard - Chatleff connections are available • External equalizer (1/4” ODF) is a standard offering. Other configurations are available • External equalizer 1/8” tube with 45° end cut is a standard offering - other terminations are available Body Type A = Adjustable, With Check, Straight-Through B = Adjustable, No Check, Straight-Through C = Non-Adjustable, With Check, Straight-Through D = Non-Adjustable, No Check, Straight-Through Equalizer E = External Equalizer Connection Bleed % Type (Omit for None) ODF = Solder CHA = Chatleff Emerson Climate Technologies

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NXT Series-2

Thermal Expansion Valves Ordering Information Adjustable, Straight-Through Body Style, Individually Packaged Refrigerant Capacity (Tons) Check Valve Bulb Cap Tube Length External Equalizer 3/8 ODF X 3/8 ODF 3/8 ODF X 3/8 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF Chatleff X Chatleff 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF Chatleff X Chatleff 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF Chatleff X Chatleff 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF X 1/2 ODF 3/8 ODF...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.