Brochure
Emerson Climate Technologies
29
Thermal Expansion Valves
Nomenclature example: TRAE+ 30 HC 10 FT 7/8 x 1
1
/8 ODF S/T
TRA E + 30 H C 10 FT 7/8 x 1⅛ ODF S/T
Valve 
Series 
Double 
Balanced 
Port 
Design
 Equalizer 
E=External 
1/4”SAE
Replaceable 
Components
Cage and 
Power 
Assembly
Capacity 
Nominal Rating 
in Tons 
(See nominal 
capacity table 
below)
Refrigerant 
Code
+F = R-12
• H = R-22
+M = R-134a
• N = R-407C
*P = R-507
*R = R-502
*S = R-404A
Charge Code
C = medium 
temp
CA = heat pump
W(MOP) = 
press. limiting
Z = low temp
Capillary Tube 
Length
10 FT (std)
Inlet x Outlet 
Connection 
Sizes
5/8 x 7/8
7/8 x 1 ⅛
1 ⅛ x 1 ⅜
Connection 
Type
ODF = solder 
(Only)
Conguration
S/T = straight-thru
(Only)
The TRAE Plus series is a large capacity valve designed 
for refrigeration, air conditioning, heat pump, and chiller 
applications.
Features
•  Stainless steel power element eliminates corrosion and  
  prevents valve failure
•  Suitable for Bi-Flow applications
•  Replaceable power element and cage assembly
  for full serviceability
•  Double balanced port design improves operation and
  stability over wide loads and evaporator temperature   
 ranges
•  Square body with straight-thru connections
•  Solid copper connections
•  External superheat adjustment
•  Large diaphragm provides superior stability
•  Permanent inlet strainer
TRAE+ Series 
Specifications
•  Maximum working pressure:  450 psig
•  Torque Power Assembly:    375 - 425 in. lb.
•  UR/CUR le number:    SA5312
Options
•  Cages (For available cage kits, see page 26.) 
TRAE+ Series – Nominal* Capacity Table in Tons (kW)
R-134a R-22/R-407C R-507/R-404A
9 (32) 10 (35) 8 (28)
13 (46) 15 (53) 12 (42)
14 (50) 20 (71) 14 (50)
22 (78) 30 (106) 20 (71)
30 (106) 40 (142) 30 (106)
All capacities shown are at 100°F condensing, 40°F evaporator temperature.
*See Extended Capacity Tables for ratings at a wide range of conditions per ARI standard 750.
TRAE+ Dimensional Data (in)
TRAE 
Valve Type
Nominal 
Inlet (B)
Sizes (ODF) 
Outlet (E)
Inlet Inlet
A C D F
TRAE+ 
10-40 
Tons
5/8 7/8 1.57 0.50 2.09 0.75
5/8 1-1/8 1.57 0.50 2.21 0.91
7/8 7/8 2.09 0.75 2.09 0.75
7/8 1-3/8 2.09 0.75 2.21 0.91
7/8 1-3/8 2.09 0.75 2.39 0.97
1-1/8 1-1/8 2.21 0.91 2.21 0.97
1-1/8 1-3/8 2.21 0.91 2.39 0.97
+ = R-134a are interchangeable refrigerant charges
* = R-507 and R-404A are interchangeable refrigerant charges
• = R-22 and R-407C are interchangeable refrigerant charges










