Air Conditioner Hose

We manufacture air conditioning hose and assemblies for all types of vehicles;

We can produce our own fittings, end form with computer controlled braze, CNC bend etc., which help us provide added service and value to our customers.

We can help research and develop and manufacture a complete automotive air conditioning assembly package at our customers’ request and international standards..

Standard:  SAE J2064

Material: Tube: PA

Buffer: EPDM/BIIR

Reinforcement: PVA

Cover: EPDM

Applicable refrigerant: R-134A, R-12

Feature: Resistance moisture ingression and permeation;

Resistance of heat, aging and ozone;

Working temperature: -40℃e to +135℃

PRODUCTION:			STANDARD: KES-C4662	SIZE:11X19
AIR CONDITIONER HOSE
NO.	TEST ITEM		TEST CONDITONS	UNIT	INSPECTION RESULT	RESULT
1	APPEARANCE				NO LEAK  OK.	OK
2	PERMEABILITY TEST		REFRIGERANT 0.73/CM3 CHARGE 100℃X96HR	g/m/72hr	22	OK
3	VACUUM TEST		610 MMHG X3MIN	%	15	OK
4	EXTRACTION TEST		REFRIGERANT 70% CHARGE 60℃X24HR SHOCK	mg/10cm2	89	OK
5	CLEANLINESS TEST		ISOOCTANCE SHAKE	mg/1000cm2	20	OK
6	MOISTURE INGRESSION		50℃X95% R.H	mg/cm	1.9	OK
7	AIRTIGHTNESS		30KG/CM2 X 5 MIN		NO LEAK	OK
8	PRESSURE RESISTANCE	APPEARANCE	45KG/CM2 X 5MIN		NO BRAKE
		AIRTIGHTNESS			NO LEAK	OK
9	LENGTH CHANGE	LENGTH CHANGE	30KG/CM2 X 5 MIN	%
		O.D.CHANGE		%		OK
10	BURST TEST			kgf/cm2	165	OK
11	TENSILE TEST		TENSILE SPEED:25MM/MIN	kgf	MIN 240	OK
12	ROTATION STRENGTH			kgf.cm	MIN 45	OK
13	PRESSURE CYCLE	APPEARANCE	TEST PRESSURE:0-30KG/CM2 PRESSURIZING CYCLE:40CPM AMBIENT TEMP:ROOM TEMP.TOTAL CYCLE:2X100,000 CYCLE		NO LEAK	OK
		AIRTIGHTNESS
14	VIBRATION DURABILITY	APPEARANCE	AMPLITUDE:±1.6MM,VIBRATION CYCLE:30CPS       AMBIENT TEMP:100℃,TIME:100 HR                                                     PRESSURE:30KG/CM2		NO LEAK	OK
		AIRTIGHTNESS
15	WHIPPING DURABILITY	APPEARANCE	AMPLITUDE:±12.5MM,WHIP  CYCLE:450 RPM       AMBIENT TEMP:100℃,TIME:100 HR                                                     PRESSURE:30KG/CM2		NO LEAK	OK
		AIRTIGHTNESS
16	AGING TEST	APPEARANCE	120℃X168HR		NO LEAK	OK
		AIRTIGHTNESS
17	COLD RESISTANCE	APPEARANCE	REFRIGERANT 70% CHARGE 70℃ X 48 HR SHOCK           -30℃X24 HR		NO LEAK	OK
		AIRTIGHTNESS
18	OIL  RESISTANCE	VOLUME CHANGE	NO-3 OIL X100℃ X 70 HR	%	15~+20	OK
19	OZONE RESISTANCE	APPEARANCE	50PPHM X40℃X72HR X O.D.3 TIMES BENDING		NO CRACK OUTER FURFACE
		AIRTIGHTNESS			NO LEAK	OK