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Emerson Commercial & Residential Solutions
ZZ series

ZZ series

Product catalog summary

Overview: This document provides technical specifications and ordering information for Emerson Climate Technologies' Thermal Expansion Valves (TXV), specifically the ZZ Series designed for ultra-low temperature applications.

Features:

Take-Apart construction for easy field service.
Improved internal construction for extended valve life.
Standard external equalizer.
Exclusive cage bellows to eliminate friction at low temperatures.
External superheat adjustment.

ZZ Series: Designed for ultra-low temperature applications, such as environmental test chambers, where evaporator temperatures are below -40°F.

Specifications:

Maximum working pressure: 450 psig.
Refrigerants and conditions: R-23 at -40°F with 0°F liquid temperature and 150 psig pressure drop; R-22 at -40°F with 20°F liquid temperature and 150 psig pressure drop.

Options: Interchangeable cages, power assemblies, and flanges for flexibility.

Nomenclature Example: ZZC 6 B G125 10 FT 3/8 x 5/8 ODF ANG - This indicates the valve series, temperature application, capacity, refrigerant code, charge code, capillary tube length, connection sizes, connection type, and configuration.

Ordering Information: Detailed part numbers and descriptions for cage assemblies, gaskets, flanges, and power assemblies are provided for various valve configurations.

Replacement Parts: Includes gasket sets and power assemblies with specific part numbers for easy replacement.

Catalog excerpts

ZZ Series – for Ultra Low Temps Thermal Expansion Valves The ZZ series is designed for ultra low temperature applications such as environmental test chambers and other applications where the desired evaporator temperature is below -40°F. Take-Apart construction for easy field service Improved internal construction extends valve life External equalizer standard Exclusive cage bellows eliminates friction at low temperatures External superheat adjustment Maximum working pressure: • Interchangeable cages, power assemblies, and flanges for maximum flexibility Valve Series Ultra Low Temperature Refrigerant Code Charge Code Z = low temp G(MOP) = press.limiting Inlet x Outlet Connection Sizes Connection Type Capillary Tube Length Standard Connections NOTE: Nominal capacities shown here are based upon the following conditions: Liquid Temperature at Valve Inlet Pressure Drop Across Valve Emerson Climate Technologies

Open the catalog to page 1

ZZ Series – for Ultra Low Temps Thermal Expansion Valves Ordering Information Cage Assemblies & Gaskets Replacement Power Assembly consists of: power assembly, and bulb clamps Gasket Set includes necessary body flange gasket & seat gasket Emerson Climate Technologies

Open the catalog to page 2

ZZ series

ZZ series

Catalog excerpts

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