COMPACT TWO-WIRE BRAIDED HYDRAULIC HOSE

Only the dimensions. Both are rated 33.0 MPa (330 bar) with 132 MPa burst on the same 10 mm bore, but 2SC measures 18.2 mm outside against 21.7 mm, bends to 90 mm against 130 mm, and weighs 0.43 kg/m against 0.60 kg/m. If the routing is already tight, the compact body is the one that fits.

No. The 1/4 inch code here is rated 40.0 MPa (400 bar) with 160 MPa (1,600 bar) minimum burst, and the 3/4 inch code is 21.5 MPa, both identical to the standard two-braid range on the same bores. What is thinner is the cover and the rubber wall, not the wire.

The 12.5 mm code is rated 27.5 MPa working (275 bar, 3,989 psi) with 110 MPa (1,100 bar) minimum burst. Minimum bend radius is 130 mm, mass is 0.52 kg/m, and the outside diameter runs 20.0 to 21.6 mm.

At 250 bar only the 5/8 inch code qualifies, at exactly 25.0 MPa (250 bar): 16 mm bore passes 60 l/min at about 5 m/s. The 3/4 inch code runs the same flow at 3.5 m/s but is rated 21.5 MPa, so it cannot take 250 bar. Pressure decides the bore here, not velocity.

3/8 inch at 33.0 MPa (330 bar) with a 90 mm bend radius and 0.43 kg/m. The 90 mm figure is why compact hose is used on masts: the channel is fixed, and a standard body needs 130 mm.

Yes, in a narrower window: -40 to +100 ℃ on oil and 0 to +70 ℃ on water-based media. At 3/8 inch the pressure rating of 33.0 MPa still applies on HFC; it is the 70 ℃ ceiling that usually ends the application first.

Because 90 mm is the minimum, not a comfortable working figure. At the limit there is no margin left for a clamp that slipped or a fitting that sits at an angle, so the bore ovalises and stays oval. Lay it out at 110 to 120 mm and the same hose lasts.

Almost always a standard ferrule on a compact wall: at 3/8 inch the outside diameter is 18.2 mm against 21.7 mm for the standard body, so the cover under the ferrule is measurably thinner. The thinner cover means the ferrule has less to bite, so an over-crimp crushes the outer braid and an under-crimp lets the tube creep. The ferrule has to be the one made for this body, crimped to a recorded diameter and proof-tested.

YIBO, in Luohe, Henan, builds the compact range on the same line as the standard body: 7 codes from 6.3 mm to 25 mm bore, 1/4 inch to 1 inch, all with a 4.0x burst margin. Assemblies are crimped with the matching ferrule and tested one by one.

Price follows the body: 0.43 kg/m at 3/8 inch, 0.83 kg/m at 3/4 inch, 1.17 kg/m at 1 inch, so 100 m of 1 inch is a 117 kg coil. Send bore, length, ends and destination and a firm figure comes back the same working day.