SAE 100R6 HYDRAULIC HOSE

Every code is 20 bar working with 60 bar minimum burst, a 3:1 margin, from the 6 mm bore to the 19 mm bore. It is a return-line class, so the ratio is 3:1 rather than the 4:1 used on pressure lines.

R6 for a plain return, R4 where suction is involved. R6 is a textile braid at 20 bar up to 19 mm, while R4 covers 19 to 102 mm at 21 bar down to 4 bar with a spiral wire for suction duty.

Yes, and that is the point of the class. A return leg runs at a few bar, so 20 bar with 60 bar burst is the correct specification rather than a compromise, and the lighter body is easier to route.

Six codes: 6, 8, 10, 13, 16 and 19 mm inside diameter, with minimum bend radius 60, 80, 100, 130, 160 and 190 mm in the same order. Outside diameter runs 14 mm to 29 mm.

Because the arc follows the bore. The 1/4 inch code turns in 60 mm and the 3/4 inch code needs 190 mm, while the pressure rating stays at 20 bar across the whole range, so the size is purely a flow and space decision.

Because a return line is not subject to the spikes a pressure line sees. The table publishes 60 bar burst on 20 bar working, and the page quotes that ratio rather than implying the 4:1 of a pressure body.

The 10 or 13 mm code at 20 bar on a 100 or 130 mm arc. A return line is sized for pressure drop rather than pressure, so the bore follows the flow and the class stays the same.

The 6 or 8 mm code at 60 and 80 mm arcs and 0.18 to 0.21 kg/m. A drain must not be restricted, so the size is chosen to keep back-pressure low, and the small outside diameter routes easily.

100 metres per size, cut to length, and the standard coil is already a full 100 metres, which is 328 ft in the length column. Production runs about 20 days from confirmation.

Price follows the bore: 0.18 kg/m at 1/4 inch, 0.21 at 5/16, 0.25 at 3/8, 0.36 at 1/2, 0.48 at 5/8 and 0.55 kg/m at 3/4 inch. Send bore, length, ends and destination for a firm figure the same working day.