Brochure

Emerson Climate Technologies
18
Thermal Expansion Valves
HF/HFK Series
Options
• ODF or SAE connections
• Straight-through or angle ow congurations
• Removable inlet strainer (ODF only)
• Internal or external equalizer
Specifications
• Maximum working pressure: 450 psig
• UR/CUR le number: SA5312
Features
• Stainless steel replaceable power element eliminates corrosion
and prevents valve failure
• Two body sizes provide capacities from 1/4 to 20 tons
NOTE: If the HF body is stamped HFK, then the cage is replaceable.
Standard Body – HF & HFK
• The HF is offered several ways:
– Pre-packaged HFK service kits – Include a mix of bodies
and power elements with a complete set of cages to
serve the most applications with a minimum of parts
– Individual components – Bodies, cages, & power
elements may be ordered separately
– Finished valves – Assembled valves ready for immediate
installation
• Bi-Flow capability up to 5-1/2 tons R-22 allows one valve to
control the superheat in both cooling and heating modes
Nomenclature example: HFESC 2 HC 5 FT 3/8 x 1/2 ODF S/T
HF N E S C B 2 H C 5 FT 3/8 x 1/2 ODF S/T
Valve
Series
Balanced
Port Design
Superheat
Adjustment
N = Non-
Adjustable
Omit for
Adjustable
Equalizer
E=External
(Omit for
Internal)
Connection
Type
S = Solder
(Omit for SAE
Flare)
Removable
Inlet
Strainer
(optional)
C = Inlet
Strainer
(ODF only)
Bleed
Hole
(optional)
(Omit for
no bleed
hole)
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
AA = wide range
Capillary
Tube
Length
5 FT (std)
Inlet x
Outlet
Connection
Sizes
1/4 x 3/8
3/8 x 1/2
Connection
Type
SAE = are
ODF = solder
Conguration
ANG = 90° angle
S/T = straight-
thru
Extended Body – HF
• Capacity range from 8 to 20 tons (R-22)
• Finished valve only
Standard Body HF
R-134a R-22/R-407C R404A/R-507
1/4 (0.9) 1/4 (0.9) 1/8 (0.4)
1/2 (1.8) 1/2 (1.8) 1/4 (0.9)
3/4 (2.7) 1 (3.5) 1/2 (1.8)
1 (3.5) 1 1/2 (5.3) 1 (3.5)
1 1/2 (5.3) 2 (7.0) 1 1/4 (4.4)
1 3/4 (6.2) 2 1/2 (8.8) 1 1/2 (5.3)
2 1/2 (8.8) 3 (11.0) 2 (7.0)
4 (14.0) 5 1/2 (20.0) 3 1/2 (12.0)
HF Series-Nominal* Capacity Tables in Tons (kW)
Extended Body HF
R-134a R-22/R-407C R-404A/R-507
6(21.0) 8 (28.0) 5 (17.0)
7 1/2 (27.0) 10 (35.0) 7 (27.0)
11 (39.0) 15 (53.0) 10 (35.0)
14 (50.0) 20 (70.0) 13 (46.0)
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.
+ = R-134a are interchangeable refrigerant charges
* = R-507 and R-404A are interchangeable refrigerant charges
• = R-22 and R-407C are interchangeable refrigerant charges
The HF series is a balanced ported valve designed for refrigeration,
air conditioning and heat pump applications.