High-pressure hose GOST 6286-73 is an analogue of foreign hoses according to specifications EN 853 1ST (SAE 100 R1A, ISO 1436-1, 1ST/R1A) and EN 853 2ST (SAE 100 R2A, ISO 1436-1, 2ST/R2A).

Hoses manufactured in accordance with GOST 6286-73 or DIN EN 853 standard are used as flexible pipelines in hydraulic systems of agricultural machines, hydraulic drives of construction, road and municipal machines for high-pressure supply of hydraulic fluids according to ISO 6743, gasoline, kerosene, oil-based oils, oil and water emulsions, emulsion, soluble and mineral oils in the temperature range from -40°C to +100°C; liquids containing water in the temperature range from -40°C to +70°C; +70°C.

Hose groups: A, B, V, Z.
A group - with the use of a wire with a breaking force not less than 15,0 kg.
B group – with the use of wire with a breaking force not less than 17.5 kg.
Z, V groups – wire brass plated surface with a breaking force not less than 20.0 kg.
Safety margin of tensile strength by hydraulic pressure: 3Р – for hoses of groups А and B ;4Р – for hoses of group Z.

TECHNICAL CHARACTERISTICS OF THE HOSE ACCORDING TO THE GOST 6286-73.


Standard type
Hose symbol
Inner diameter, mm
Working pressure, MPa (bar)
GOST 6286-73, Z Group, II Type
Z-II-6-35,0
6,0
35 (350)
Z-II-8-30,0
8,0
30 (300)
Z-II-10-28,0
10,0
28 (280)
Z-II-12-25,0
12,0
25 (250)
Z-II-16-20,0
16,0
20 (200)
Z-II-20-16,0
20,0
16 (160)
Z-II-25-14,0
25,0
14 (140)
Z-II-38-9,0
38,0
9 (90)
GOST 6286-73, Z Group, l Type
Z-l-6-20,0
6,0
20 (200)
Z-l-8-17,5
8,0
17,5 (175)
Z-l-10-16,0
10,0
16 (160)
Z-l-12-14,0
12,0
14 (140)
Z-l-16-10,5
16,0
10,5 (105)
Z-l-20-9,0
20,0
9,0 (90)
Z-l-25-7,0
25,0
7,0(70)
Group Z (one-, two-braid):
Type I — with one metal braid .
Type II — with two metal braids.

TECHNICAL CHARACTERISTICS OF THE HOSE ACCORDING TO VRT/DIN EN 853:



Standard type
Hose symbol
Inner diameter, mm
Outer diameter, mm
Working pressure, MPa (bar)
DIN EN 853 Type 1 ST
1 ST 6-22,5
6,5
15,9
22,5 (225)
1 ST 8-21,5
7,9
17,5
21,5 (215)
1 ST 10-18,0
9,5
19,8
18 (180)
1 ST 12-16,0
12,7
23,0
16 (160)
1 ST 16-13,0
15,9
26,2
13 (130)
1 ST 19-10,5
18,8
30,2
10,5 (105)
1 ST 25-8,8
25,0-26,4
37,1 -39,1
8,8 (88)
DIN EN 853 Type 1 SN
1 SN 6-22,5
6,5
13,5
22,5 (225)
1 SN 8-21,5
7,9
15,1
21,5 (215)
1 SN 10-18,0
9,5
17,5
18,0 (180)
1 SN 12-16,0
12,7
20,7
16 (160)
1 SN 16-13,0
15,9
23,5
13 (130)
1 SN 19-10,5
18,8
27,6
10,5 (105)
1 SN 25-8,8
25,4
35,6
8,8 (88)
DIN EN 853 Type 2 ST
2 ST 6-40,0
6,5
17,5
40 (400)
2 ST 8-35,0
7,9
19,1
35 (350)
2 ST 10-33,0
9,5
21,4
33 (330)
2 ST 12-27,5
12,6
24,6
27,5 (275)
2 ST 19-21,5
18,8
31,8
21,5 (215)
2 ST 25-16,5
25,0-26,4
38,5-40,9
16,5 (165)
DIN EN 853 Type 2 SN
2 SN 6-40,0
6,5
15,0
40 (400)
2 SN 8-35,0
7,9
16,6
35 (350)
2 SN 10-33,0
9,5
19,0
33 (330)
2 SN 12-27,5
12,6
22,1
27,5 (275)
2 SN 16-25,0
15,9
25,2
25 (250)
2 SN 19-21,5
18,8
29,1
21,5 (215)
2 SN 25-16,5
25,4
38,9
16,5 (165)
DIN EN 853, 1 ST Type — Hoses with one layer of steel wire braid.
DIN EN 853, 1 SN Type — Hoses with one layer of steel wire braid and a thinner outer layer of rubber are specially designed for use without turning before crimping.
DIN EN 853, 2 ST Type — Hoses with two layers of steel wire braid.
DIN EN 853, 2 SN Type — Hoses with two layers of steel wire braiding and a thinner outer layer of rubber are specially designed for use without turning before crimping.
Hose groups:  А, B, V, Z.
A group –  with the use of a wire with a breaking force of not less than 15,0 kg.
B group – with the use of wire with a breaking force of not less than 17.5 kg.
Z, V groups – wire brass plated surface with a breaking force not less than 20.0 kg.
The resistance to rupture by hydraulic pressure:
3Р – for hoses of groups A and B B;
4Р – for hoses group Z.