Thermoplastic K-LINK hoses and accessories for refrigeration and air conditioning system

Transcription

1 Thermoplastic K-LINK hoses and accessories for refrigeration and air conditioning system Bulletin ACH-GB

2 The Air Conditioning / Refrigeration System The domestic and industrial Air Conditioning / Refrigeration Systems consist of four different phases in the gas handling: CONDENSATION, EVAPORATION, COMPRESSION, SYSTEM CONTROL. The system reliability is assured by the quality of the connections between the single components. 1 compressor to condenser, 2 condenser to evaporator, 3 evaporator to compressor, 4 compressor to control units (such as pressure switches or pressure gauges). YESTERDAY The conveying of refrigerating gases was assured by the use of copper tubes, with substantial dissatisfaction of all the main users, because of the following disadvantages: High noise level. High vibrations transmission, possible cause of failures. Long working time as all the different components had to be welded to the system (copper tubes, elbow copper connectors, mufflers, etc.). TODAY Today, thanks to the technological development reached with the thermoplastic materials, all these negativities have been removed and an excellent and long lasting answer to the system reliability has been reached. The experience gained from joint development programs together with the main Italian O.E.M. s has demonstrated considerable advantages such as: High flexibility and strength. Condenser noise reduction in comparison with the classic application (vibration damper, muffler). Strong reduction of vibrations transmission. Time saving for system construction: no welded connections (copper tubes, copper flanges, etc.). Improved system quality and reliability. The new K-LINK hose range (K-LS; K-LC; K-LCP), developed by TEHAG (O.E.M. Division of ITR S.p.A.) is the proper answer to all the requirements of the air conditioning and refrigeration market. 2 Parker Hannifin S.p.A.

3 K-LCP Capillary Thermoplastic Hose Hose Part-Number Inside Diameter Outside Diameter Tolerances Min. Bend. Radius Working Pressure Weight mm mm mm mm bar psi g/m Smooth bore thermoplastic textile reinforced hose with a special anti-abrasion, heat and weather resistant black cover. For use in system connection between compressor and control units (pressure gauges, sensors, control valves). - Part-number : available both loose and assembled on required length. - Part-number : available both loose and assembled on required length. For loose K-LCP hoses (Part-Number ) are available -on request- proper pliers and snips (manual cutter) to assure field crimping without any problem. Temperatures: -40 C / +130 C. For use with refrigerants R22, R404A, R407A, R410A UL 1963 Sect Approval K-LC Corrugated Bore Thermoplastic Hose Hose Part-Number Inside Diameter Outside Diameter Diametro Esterno Tolerances Min. Bend. Radius Working Pressure Weight inch mm mm mm mm bar psi g/m / / / Corrugated bore thermoplastic hose reinforced with a special stainless steel cover braid (INOX 304), resistant to abrasion and weathering. For use in system connection as compressor-condenser, condenser-evaporator and evaporator-compressor. Available pre-assembled on required lengths. Temperatures: -40 C / +130 C. For use with refrigerants R22, R404A, R407A, R410A 3 Parker Hannifin S.p.A.

4 K-LS Smooth Bore Thermoplastic Hose Hose Part-Number Inside Diameter Outside Diameter Outside Diameter Tolerances Min. Bend. Radius Working Pressure Weight inch mm mm mm mm bar psi g/m / / / / / / Smooth bore thermoplastic textile reinforced hose with a special anti-abrasion, heat and weather resistant black cover. For use in systems connection as compressor-condenser, condenser-evaporator and evaporator-compressor. All sizes available both assembled on required lengths and loose for subsequent assembling. Temperatures: -40 C / +130 C. For use with refrigerants R22, R404A, R407A, R410A UL 1963 Sect Approval 4 Parker Hannifin S.p.A.

5 K-LS SPLIT Smooth Bore Thermoplastic Hose Hose Part-Number Inside Diameter Outside Diameter Outside Diameter Tolerances Min. Bend. Radius Working Pressure Weight inch mm mm mm mm bar psi g/m / / / / / Insulating cover of expanded polyethylene Temperatures: -30 C / +90 C. Fire resistance: non-inflammability Class 1. For use with refrigerants R22, R404A, R407A, R410A UL 1963 Sect Approval Reusable fittings for Freon hose K-link K-LINK hose part-number Nominal Diameter SAE fitting Sleeve Straight SAE insert 90 elbow insert Thread SAE J 513 2B DN 4 x 8,2 1/4 1/4" /16" 20 unf DN 4,4 x 9,7 1/4" 1/4" /16" 20 unf DN 8,5 X 13,9 3/8 3/8" /8" 18 unf DN 10,5 X 16 1/2" 1/2" /4" 16 unf DN 13,5 X 19,3 5/8 5/8" /8" 14 unf DN 17,5 X 23,6 3/4" 3/4" "+1/16" 14 uns 5 Parker Hannifin S.p.A.

6 REUSABLE FITTINGS for K-LS Working temperature: -30 C / +90 C Reusable fittings consist of a screw sleeve, to be fitted over the outside of the hose, and an insert, which is driven forcibly into the bore; the insert enlarges the internal diameter of the hose and compresses the wall against the inside of the sleeve, ensuring that the parts are held safely together. Instructions for hose assembling with reusable fittings The following pictures and relevant descriptions show the essential steps to be carried out for a correct hose assembling with reusable fittings: 1 Cut the hose on size using proper shears, automatic or manual cutters, etc. The cut must be perfectly square. Clean the cut surface. 2 Hold the hose and, using the proper wrench size, screw the sleeve anti-clockwise onto the cover, till the hose end is some 2/3 mm from the top of the sleeve. 3 Using two wrenches in opposition, tighten the insert clockwise fully home against the sleeve. 4 Insert the sleeve on the hose. 5 Put the insert in the sleeve. 6 The system is ready for use. 6 Parker Hannifin S.p.A.

7 INSTRUCTIONS FOR MANUAL ASSEMBLING OF CAPILLARY K-LCP Cut the hose on size using proper shears, automatic or manual cutters. To obtain a perfect assembling, the must be perfectly square. Clean the surface, if necessary. 2 Insert the sleeve on the hose, turning the identification sign (groove) of the sleeve towards the hose side to be assembled. 3 Insert the nut on the hose. 4 Put the insert inside the hose. 5 Make the nut slide onto the external part of the insert and push the sleeve till covering the bottom of the insert. 6 Assemble the hose by positioning manual pliers on the sleeve covering its whole surface. Crimp till hand pliers open automatically. A second crimping in useful to obtain a safer assembling. Suggestions to regulate hand pliers. To be sure hand pliers are well regulated, assemble one hose and check that the average diameter of the crimped sleeve is 7,1 mm (just one of the eight diameters can be maximum 7,3 mm). If not, regulate the cam still the obtaned crimped sleeve in perfect. 7 Parker Hannifin S.p.A.

8 Fittings for K-LCP (part n ) Trumpet Copper Gasket K Pin Tee Nipple Sleeve Tee Female Nipple Insert Tee Female Nipple Quick coupling Series Nut Insert with depressor 8 Parker Hannifin S.p.A.

9 Hose & Accessories Range for K-LCP (part n ) The field assembling capability for the K-LCP capillary hoses is assured by a complete tool set that comprises: Hand Player Crimper K-LCP Capillary Thermoplastic Hose Recommended torque 15 Nm +/ Sleeve Insert with depressor K Insert Nut Suitcase Pin Tee Nipple Tee Female Nipple Trumpet Copper Gasket Snips Tee Female Nipple 9 Parker Hannifin S.p.A.

10 Parker Hannifin S.p.A. Fluid Control Division Refrigeration & Air Conditioning Business Unit Via Enrico Fermi, Gessate (MI) Italy Tel: Fax: Bulletin ACH-GB 09/04