Lett Capillary Hoses

Product Description

zec-fr5-serisi-kapiler-hortum zec-resim

EC Freon LFR5 thermoplastic hose is used in refrigeration systems for both the fixed plants, and the automotive1 industry. The intense research on new materials has allowed to develop a product that can substitute traditional copper piping, offering the advantage of flexibility and ease assembly, while maintaining excellent strength and low permeability to refrigerant gases (including CO2).

1 Service stations for the recharge of refrigerant gas and the maintenance of A/C systems.

DATA SHEET – FREON FR5 HOSES

HOSE
TYPE
CODE OUTSIDE
DIAM.
INSIDE
DIAM.
CORE CORE
MATERIAL
BRAID
TYPE
COVER
MATERIAL
BURST
PRESSURE
WORKING
PRESSURE
MIN
BEND
OUTSIDE
DIAM.
INSIDE
DIAM.
DN2 FR557210100 6.0 mm 2.1 mm 4.6 mm 2.2 mm Elastomerized
polyamide
Reinforcement
braid in
polyester
fiber
Antiabrasion
polyurethane
600 bar 120 bar 15 mm
0.24 in (1/12) in 0.18 in 0.09 in 8702 psi 1740 psi 0.59 in
DN4 FR510100 8.2 mm 4.0 mm 6.8 mm 4.1 mm 600 bar 120 bar 30 mm
0.32 in (5/32) in 0.27 in 0.16 in 8702 psi 1740 psi 1.18 in
DN5 FR520100 10.1 mm 4.8 mm 8.0 mm 5.0 mm 600 bar 120 bar 50 mm
0.40 in (3/16) in 0.31 in 0.20 in 8702 psi 1740 psi 1.97 in
DN6 FR530100 11.9 mm 6.4 mm 9.6 mm 6.6 mm 600 bar 120 bar 75 mm
0.47 in (1/4) in 0.38 in 0.26 in 8702 psi 1740 psi 2.95 in

Technical features

• Zec Freon FR5 thermoplastic hoses represent an innovative alternative to the traditional copper tubing for applications in refrigeration plants and automotive industry. Flexibility, light weight, vibration damping and ease assembly are the main features of these thermoplastic hoses.

• The research in the field of plastics has produced a particular alloy of polyamide (PA) and thermoplastic elastomers (TPE). This innovative material combines the excellent mechanical properties and low gas permeability of polyamides, with the high flexibility of elastomers, without having recourse to plasticizing additives. Despite of its low density, the elastomerized polyamide provides an excellent barrier to refrigerant gases (R-22, R-134a, R-404a, R-407c, R-410a, R-507, R-600a, R-744) and an excellent chemical resistance to lubricating oils, typically mixed with the refrigerant (e.g. PAG oils, mainly used in automotive industry, or POE oils, spread in fixed installations).

• “F-Gas” directives (2006/40/EC and 2006/842/CE) require the use of refrigerants with low environmental impact (GWP <150, Global Warming Potential). Carbon dioxide used as refrigerant (R-744) has a GWP = 1, it is non-flammable, has low toxicity, is readily available and low cost. However, CO2 requires pressures about 10 times higher than a conventional refrigerant gas. ZEC Freon LFR5 thermoplastic hoses have been developed to work with CO2, providing a working pressure up to 120 bar, with a safety ratio of 1:5.

• Internal core of Zec Freon LFR5 hoses is made of elastomerized polyamide. Reinforcing braid in high tenacity polyester yarn (PET) and micro-perforated cover in antiabrasion polyurethane (PU) provide hose a high resistance to pressure and surface abrasion, ensuring performances in accordance with UNI EN 1736 standard.

• Working temperature of Zec Freon LFR5 hoses is in the range -45°C to +130°C. Furthermore the directives REACH (2006/1907/EC) and RoHS (2002/95/EC) are met.

PERMEABILITY TEST*

REFRIGERANT
GAS
PERMEABILITY PER SQUARE METER OF HOSE LEAKAGE
RATE
CLASS*
UNIT PRESSURE 60 BAR PRESSURE 120 BAR
TEMPERATURE
32°C
TEMPERATURE
100°C
TEMPERATURE
32°C
TEMPERATURE
100°C
R-12 g/year m2 327 1894 373 2108 3
R-134a 301 1745 343 1942 3
R-404a 294 1700 335 1892 3
R-407c 273 1579 311 1757 3
R-410a 254 1473 290 1640 3
R-600a 224 1300 256 1447 3
R-744 (CO2) 51** 290**

(*) In compliance with UNI EN 1736 standard.

(**) CO2 at 120 bar is in supercritic zone and in this phase some fluid characteristics are gas-like and other liquid-like. The permeability of CO2 at 120 bar is evaluated considering a factor of about 512 for the gas/liquid conversion.

FR5 SERIES CAPILLARY HOSES TECHNICAL SPECIFICATIONS

Technical-constructive features:

Internal core in polyamide, reinforcement with a polyester fiber, exterior

covering in micro perforated polyurethane antiabrasion.

Applications:

CAPILLARY LFR5 series hoses have been created for the through flow of

R22, R134A, R404, R407, R410, R507 refrigerants and CO² and relevant

POE oils lubricants.

Utilization temperature:

From -45°C to +130°C

Specification:

Standards UNI EN 1736,

Regulation “REACH” (EC n° 1907/2006),

European Directive n° 2002/95/EC “RoHS”.

Model No Type inch In. Diameter Out. Diameter Working Pressure Working Pressure Min. Bending Diameter Weight Ring Code
mm mm (bar) (Psi) (mm) (g/m)
LFR557210100 DN2 1/12″ 2,1 6 60 870 15 28 BP112FR5ALN
L FR510100 DN4 5/32″ 4 8,2 120 870 30 43 BP532FR5AL
LFR520100 DN5 3/16″ 4,8 10,1 60 870 50 69 BP316R7
LFR530100 DN6 1/4″ 6,4 11,8 60 870 75 86 BP14R7
LFR540100 DN8 5/16″ 8,1 14,2 60 870 89 120 BP516R7V
LFR550100 DN10 3/8″ 9,7 15,6 60 870 100 134 BP38R7V
LFR560100 DN12 1/2″ 12,9 19,3 60 870 125 180 BP12R7V
LFR570100 DN16 5/8″ 16,0 22,3 40 580 165 209 BP58R7
LFR580100 DN20 3/4″ 19,ⁿ 25,3 40 580 250 257 BP34R7
LFR590100 DN25 1″ 25,4 32,3 40 580 300 344 BP1R7