Product Overview
2004FC-118 R13 (01/14)
Emerson Climate Technologies
TXV 27
Thermal Expansion Valves
Features
• Suitable for Bi-Flow applications
• External superheat adjustment
• Integral body with straight-thru connections
• Balanced port design improves valve operation and stability
over wide loads and evaporator temperature range
• Solid copper connections
• Large diaphragm provides superior stability
TRAE Series
Specifications
• Maximum Working Pressure: 450 psig
The TRAE series is a large capacity valve for chiller, heat pump,
refrigeration, and air conditioning applications.
Remote Bulb Table
Remote Bulb
Tubing Length
Bulb Length
5, 10, 15 ft.
4-7/8
20, 30 ft.
40, 50 ft. 6-3/16
TRAE Series – Nominal* Capacity Table in Tons (kW)
R-12 R-134a R-22/R-407C R-507/R-404A/R-502
30 (106) 40 (142) 50 (177) 35 (124)
35 (124) 45 (159) 60 (212) 40 (142)
40 (142) 50 (177) 70 (248) 50 (177)
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.
Nomenclature example: TRAE 50 HC 10 FT 7/8 x 1
1
/8 ODF S/T
TRA E 50 H C 10 FT 7/8 x 1⅛ ODF S/T
Valve Series
Hermetic
Balanced
Port Design
Equalizer
E=External
1/4”SAE
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
1/4 x 3/8
3/8 x 1/2
Connection
Type
ODF = solder
(Only)
Conguration
S/T = straight-thru
(Only)
+ = R-12 and R-134a are interchangeable refrigerant charges
* = R-507, R-502 and R-404A are interchangeable refrigerant charges
• = R-22 and R-407C are interchangeable refrigerant charges
Dimensional Data (in)
Remote Bulb Tubing Length 10’ Standard
Connection Size
A B C MIN D MIN E F
Inlet Outlet
7/8 ODF 7/8 ODF 0.88 0.88 0.75 0.75 2.09 2.09
7/8 ODF 1-1/8 ODF 0.88 1.13 0.75 0.91 2.90 2.21
7/8 ODF 1-3/8 ODF 0.88 1.38 0.75 0.97 2.90 2.39
1-1/8 ODF 1-1/8 ODF 1.13 1.13 0.91 0.91 2.21 2.21
1-1/8 ODF 1-3/8 ODF 1.13 1.38 0.91 0.97 2.21 2.39
1-3/8 ODF 1-3/8 ODF 1.38 1.38 0.91 0.97 2.39 2.39