Twin Welding Hose Type: QB20

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Application:

This twin welding hose is designed to deliver gas during metal welding, cutting, and other processes. Gasses delivered include air, oxygen, ethyne, propane, butane, CO2, LPG (liquid petroleum gas) and more.

Temperature Range:

-20℃ ~ +70℃

Production Standard:

ISO3821

Construction: Tube: Black composite rubber Reinforcement: High strength multi-layer synthetic fiber cord Cover: Composite rubber with a smooth surface, abrasion resistance, thermal and oil resistance, and aging resistance Technical Parameters:

Code No.	Size (inch)	I.D. (mm)	O.D. (mm)	W.P. (bar) (psi)		B.P. (bar) (psi)		Safety Factor	MBR (mm)	Weight (Kg/m)	Max. Length (m)
QB20-6+6	15/64+15/64	6+6	12.0	15~21	214~300	45~63	642~900	3	36	0.33	100
QB20-6.4+6.4	1/4+1/4	6.4+6.4	12.5	15~21	214~300	45~63	642~900	3	40	0.33	100
QB20-8+8	5/16+5/16	8+8	15.0	15~21	214~300	45~63	642~900	3	48	0.42	100
QB20-6+8	15/64+5/16	6+8	15.0	15~21	214~300	45~63	642~900	3	48	0.46	100
QB20-6.4+8	1/4+5/16	6.4+8	15.0	15~21	214~300	45~63	642~900	3	48	0.51	100
QB20-6+9	15/64+23/64	6+9	16.0	15~21	214~300	45~63	642~900	3	55	0.54	100
QB20-8+9	5/16+23/64	8+9	16.0	15~21	214~300	45~63	642~900	3	55	0.50	100
QB20-9+9	23/64+23/64	9+9	16.0	15~21	214~300	45~63	642~900	3	55	0.48	100
QB20-8+9.5	5/16+3/8	8+9.5	16.5	15~21	214~300	45~63	642~900	3	57	0.54	100
QB20-9.5+9.5	3/8+3/8	9.5+9.5	16.5	15~21	214~300	45~63	642~900	3	57	0.51	100
QB20-8+10	5/16+13/32	8+10	17.0	15~21	214~300	45~63	642~900	3	60	0.57	100
QB20-10+10	13/32+13/32	10+10	17.0	15~21	214~300	45~63	642~900	3	60	0.52	100