Vendor: Parker Industrial

Category: Welding

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Application:

Grade R Single Line Welding Hose ARPM IP-7
Series 7120 (Red – Acetylene Line Only):
Series 7121 and Series 7031R (Green – Oxygen Line)

• Bending, brazing, cutting, fabricating, gouging, joining, piercing, pre-heating, post-heating, severing, soldering, straightening, surfacing, trimming
• Assembly and fabrication shops, construction, factories, foundries, mines, oil rigs, plumbing, rail yards, salvage, scrapyards, shipyards, steel mills

Series 7120/7121 is a single line acetylene/oxygen welding hose. Red Series 7120 is only for fuel service and is compatible only with acetylene. Green Series 7121 is only for oxygen service. The non-blooming tube minimizes the migration of combustible waxes or plasticizers to the surface of the rubber, and the multiple plies of textile reinforcement provide flexibility. Single line welding hose is available in long continuous lengths, providing maximum versatility and ease of handling in a variety of applications where only single line hose is needed or where the fuel gas and oxygen sources are separated, and twin line hose is not practical. The cover is resistant to abrasion, heat, mild chemicals and ozone.

NOTES:

• For 3/4" Grade R oxygen hose, refer to Series 7031R.
• Grade R is also suitable for use with inert gas.

Design Factor:  4:1
Vacuum:  Not recommended
Industry Standards:  ARPM IP-7

Tube:

Black EPDM

Reinforcement:

Multiple textile plies

Cover:

Series 7120: Red (acetylene) EPDM; ribbed finish
Series 7121: Green (oxygen) EPDM; ribbed finish (7031R Green EPDM; smooth finish)

Temperature:

-40°F to +200°F (-40°C to +93°C)

Packaging:

Reels

Couplings:

Contact JGB for coupling information.

Branding:	Series 7120: PARKER 7120 WELDING WARNING ACETYLENE ONLY (ID) MAX WP 200 PSI ARPM IP-7-(YEAR) STD DUTY GRADE R COUPLE WITH ONE INCH FERRULES MADE IN USA (DATE CODE)
	Series 7121: PARKER 7121 WELDING WARNING OXYGEN (ID) MAX WP 200 PSI ARPM IP-7-(YEAR) STD DUTY GRADE R COUPLE WITH ONE INCH FERRULES MADE IN USA (DATE CODE)
	Series 7031R: PARKER 7031 GST® II/OXYGEN (ID) MAX WP 300 PSI (200 PSI OXYGEN) ARPM IP-7-(YEAR) STD DUTY GRADE R MADE IN USA (DATE CODE)

Part No.	ID	ID	Reinf Plies	OD	OD	Approx Wt	Min Bend Rad	Max Rec WP	Std Pack	Request Quote
	(in)	(mm)		(in)	(mm)	(lbs/ft)	(in)	(psi)	Qty (ft)
Series 7031R (Green – Oxygen Line)
7031-7530450R	3/4	19.1	4	1.156	29.4	0.37	6	300	50	Request Quote
7031-75304R	3/4	19.1	4	1.156	29.4	0.37	6	300	400	Request Quote
Series 7120 (Red – Acetylene Line Only)
7120-19200	3/16	4.8	2	0.438	11.1	0.08	2	200	800	Request Quote
7120-25200	1/4	6.4	2	0.531	13.5	0.1	2.5	200	800	Request Quote
7120-31200	5/16	7.9	2	0.594	15.1	0.13	3	200	750	Request Quote
7120-38200	3/8	9.5	2	0.656	16.7	0.14	4	200	700	Request Quote
7120-50200	1/2	12.7	4	0.875	22.2	0.26	5	200	500	Request Quote
Series 7121 (Green – Oxygen Line)
7121-19200	3/16	4.8	2	0.438	11.1	0.08	2	200	800	Request Quote
7121-25200	1/4	6.4	2	0.531	13.5	0.1	2.5	200	800	Request Quote
7121-31200	5/16	7.9	2	0.594	15.1	0.13	3	200	750	Request Quote
7121-38200	3/8	9.5	2	0.656	16.7	0.14	4	200	700	Request Quote
7121-50200	1/2	12.7	4	0.875	22.2	0.26	5	200	500	Request Quote

Warning! Do not attempt to re-couple, repair or splice hose assemblies; replace all assemblies that show signs of abrading, abuse, age, damage or fatigue. Refer to ARPM IP-7, Specifications for Rubber Welding Hose and Hose Technical Bulletin 11-5, Guide for Use, Maintenance and Inspection of Welding Hose. Refer to CGA Safety Bulletin SB-11, Use of Rubber Welding Hose.

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