Product Overview

2004FC-118 (Q2/11)
Emerson Climate Technologies
36
Thermal Expansion Valves
NOTE: Nominal capacities shown here are based upon the following conditions:
Features
• Take-Apart construction for easy eld service
• Improved internal construction extends valve life
• External equalizer standard
• Exclusive cage bellows eliminates friction at
low temperatures
• External superheat adjustment
ZZ Series – for Ultra Low Temps
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.
Refrigerant
Evaporator
Temperature
Liquid Temperature
at Valve Inlet
Pressure Drop
Across Valve
R-23 -40°F 0°F 150 psig
R-22 -40°F 20°F 150 psig
Specifications •
Maximum working pressure: 450 psig
Options
• Interchangeable cages, power assemblies, and anges
for maximum exibility
Nomenclature example: ZZC 6 B G125 10 FT 3/8 x 5/8 ODF ANG
ZZC 6 B G125 10 FT 3/8 x 5/8 ODF ANG
Valve Series
Ultra Low
Temperature
Take-Apart
Capacity
(nominal @ -40°F)
Tons
Refrigerant Code
B = R-13/R-23
H = R-22
R = R-502
Charge Code
Z = low temp
G(MOP) = press.limiting
Capillary
Tube Length
10 FT (std)
Inlet x Outlet
Connection Sizes
Connection Type
SAE = are
ODF=solder
Conguration
ANG = 90° angle
S/T = straight-thru
R-13/R-23
Valve Type
R-22
Valve Type
Standard
Connections
ZZC 1BG ZZC 3/4HZ
3/8 ODF x 5/8 ODFZZC 2-1/2BG ZZC 1-1/2HZ
ZZC 4BG ZZC 2-1/2HZ
ZZC 6BG ZZC 4HZ
1/2 ODF x 5/8 ODFZZC 9BG ZZC 6HZ
ZZC 13BG ZZC 8HZ
ZZ ER 20BG -- 7/8 ODF x 1-1/8 ODM