Brochure

Catalog CIC-2003-1/US
Parker Hannifin Corporation
Climate & Industrial Controls Group
Cleveland, OH
135
Service
& Check
Valves
Thermostatic and Constant Pressure (Automatic) Expansion Valves
TXVs & AXVs
Model Number Selection Guide Thermostatic Expansion Valves
X
CHARGE TYPE
100
M.O.P.
B
BLEED
OPTIONAL
20
BLEED
CAPACITY
Charge Type
“W” (all-purpose) liquid charge maintains nearly “flat” superheat
control over a -40F° to +60F° (-40C° to +15C°) evaporator tem-
perature range.
“Z” (low temperature) charge provides fast pulldown benefits like
a gas charge with the non-migrating benefits of a liquid charge;
usable over a -40F° to 0F° (-40C° to -20C°) evaporator tempera-
ture range.
“X” (damped response) gas charge provides a pressure limiting
(MOP) charge with anti-hunt characteristics over a -40F° to
+60F° (-40C°
to +15C°) evaporator temperature range.
Notes: M.O.P. not available on "W" or "Z" charge.
*May not be used on systems in which bulb temperature will exceed 130 ° F
(i.e. defrost). Contact Parker for pressure and temperature.
M.O.P.
Maximum Operating Pressure
-40 -30 -20 -10 0 10 20 30 40 50 60
Bleed
Denoted by “B”.
Not available on all TXVs.
See bleed capacity.
Used for equalizing system
during off cycle (compressor
unloading). Consult Parker.
See page 164.
Bleed Capacity
Calculated based on nominal
capacity of valve specified by
manufacturer or Parker.
Typically 30% or less.
Calculated by:
Desired Bypass Capacity
x 100%
Rated Valve Capacity
Rainbow Charge™
Refrigerant
Designation
JW, JX60
VX100, VW, VX35, VZ
SW, SX35, SX110, SZ
KX200
VX100, JX60, SX110, KX200
Air Conditioning
VX35, SX35
Low Temp. Ref.
VZ, SZ
Low Temp. Ref.
VW, JW, SW
All purpose liquid
Charge Operating Temperature Range
Evaporator Temperature °F