HALCOR SA 

62nd km Athens-Lamia National Road, 
GR 32011 Inofita-Viotia, Greece     
Tel. +30 22620 48111, 
Fax.+30 22620 48911, 
 

Certificates            Brochures

           

TALOS® XS

Green Refrigeration

The increasing concern of the environmental impact of hydrofluorocarbon (HFC) refrigerants, as well as the more stringent environmental regulations, have prompted a re-emergence of carbon dioxide (CO2) based refrigeration systems. CO2 refrigerant is used as a working fluid in many climate control systems, in applications such as commercial refrigeration, residential air conditioning, hot water pumps, vending machines, etc. The supermarket industry in particular, implemented an ecological and efficient store concept by successfully embracing advanced CO2 refrigeration technologies developed by refrigeration system manufacturers.
 

 

 

CO2 as a refrigerant

CO2 (R-744) refrigerant is termed a “natural” refrigerant because it exists in the natural environment. Released from refrigeration systems into the atmosphere has a negligible effect to global warming, thus CO2 has no regulatory liability, as is the case of CFC, HCFC and HFC refrigerants. In addition to its environmental-friendly character, CO2 is currently viewed as a viable solution for low-temperature refrigeration applications because it is non-ozone depleting, non-toxic, non-flammable and has a high volumetric cooling capacity. However due to its physical properties, CO2 based refrigeration systems request much higher pressure, compared to conventional systems. The operating pressure of such systems can reach up to 120bar in the transcritical cycle. CO2 meets the demand for a low-global warming potential (GWP) refrigerant but presents challenges in both its application and handling. The higher  operating pressure and broad temperature fluctuations require that all the system components, including piping, should be designed accordingly.
 

Extra-Strong TALOS® XS tubes for high-pressure systems

TALOS® XS tubes were specifically developed from a high strength copper-alloy (CuFe2P) to satisfy the demands of today’s high-pressure CO2 systems in refrigeration, as well as, other high-pressure HVAC&R applications. TALOS® XS tubes possess the extra strength to withstand operating pressures of up to 120bar. At the same time, TALOS® XS tubes are manufactured with comparatively thinner walls and thus achieve an economical advantage that meets the pressure equipment design. The well-known installation practices of
refrigeration copper tubes are followed also for the installation of TALOS® XS tubes in systems and in the field (see also EN378 for guidelines). Since the processing methodology remains essentially the same, existing tooling and handling equipment is made of use. This includes brazing with standardized silver braze alloy (min. silver content of 2%), bending with traditional tools and joining with standardized fittings made from copper or copper-alloy (CuFe2P).
 
TALOS® XS Product Features
■ Ideally suited for CO2 refrigeration applications
■ Made from Extra-Strong copper-iron (CuFe2P) alloy
■ Cost-effective and lightweight, manufactured ith comparatively thinner walls
■ Traditional processing techniques and equipment
■ Compatible with existing fittings made of the same alloy
■ Clearly marked and easily identified
 

Material

Copper-iron alloy (CuFe2P), with chemical composition according to EN12449 (CW107C) and UNS C19400
 

Specifications

Dimensional Tolerances: EN 12735-1
Internal Cleanliness: EN 12735-1
Mechanical Properties: EN12449, VdTÜV WB567
Form of supply: Straight lengths with end-caps, in bundles or wooden cases
Marking: e.g. HALCOR TALOS-XS 9.52 x 0.65 CuFe2P R300 120bar/1740psi
 
 
TALOS® XS for 120 bar1

Outside Diameter2

Wall Thickness2

Temper3

Length4
(meter)

(mm)

(inch)

(mm)

(inch)

(m)

(feet)

9.52

3/8"

0.65

0.026

R300, R420

5

16.4

12.70

1/2"

0.85

0.033

R300, R420

5

16.4

15.87

5/8"

1.05

0.041

R300

5

16.4

19.05

3/4"

1.30

0.051

R300

5

16.4

22.23

7/8"

1.50

0.059

R300

5

16.4

28.57

1 1/8"

1.90

0.075

R300

5

16.4

34.92

1 3/8"

2.30

0.091

R300

5

16.4

41.27

1 5/8"

2.70

0.106

R300

5

16.4

 
1 120bar (1740psi) at an operating temperature of 150°C (250°F) 
 
2 Additional dimensions for other pressures can be made available upon consultation
 
3 R300 (annealed) temper acc. to EN12449 and VdTUV 567 and/or R420 (hard as drawn) temper acc.to EN12449
 
4 Additional lengths are available upon request