Braid Hydraulic Hose SAE100R 1AT
|Nominal Diameter||I.D.(mm)||W.D. mm||O.D.||W.P.
Place of Origin: Qingdao, China
Model Number: Compact Pilot Hose PLT serious
Surface Color: BLACK, BLUE, RED, YELLOW
Certification: ISO9001:2015; TS16949; ISO14001:2015; OHSAS18001:2017
Brand Name: OEM Brand & Leadflex
Business Type: Manufacturer
Cover: Smooth & Wapped
1.Types of hoses
Four types of hoses are specified:
- Type 1ST - hoses with a single braid of wire reinforcement;
- Type 2ST- hoses with two braids of wire reinforcement;
- Types 1SN and 2SN - Types 1SN and 2SN shall be of the same reinforcement construction as types 1ST and 2ST.
Except they shall have thinner cover designed to assemble with fittings that do not require removal of the cover or a portion of the cover.
2.Materials and construction
Hoses shall consist of an oil and water resistant aynthetic rubber lining, one or two layers of high tensile steel wire and an oil and weather resistant rubber cover.
2.2 Hose assemblies
Hose assemblies shall only be manufactured with those hose fittings whose functionality has been verified in all tests in accordance with this European Standard.
When tested in accordance with EN ISO 1402, the maximum working pressure, the proof pressure and burst pressure of the hoses and hose assemblies shall comply with the values given in table 1.
When tested in accordance with EN ISO 1402, the change in length of hose at the maximum working pressure shall not exceed +2% to -4%.
3.2Minimum bend radius
When bent to the minimum bend radius given in the table 2 measured on the inside of the bend, the flatness shall not exceed 10% of the original outside diameter.
Measure the hose outside diameter with a caliper before bending the hose. Bend the hose to the minimum bend radius and measure the flatness with the caliper.
3.3Impulse test requirements
A.The impulse test shall be in accordance with ISO6803, The test remperature shall be 100℃。
B.For type 1ST and 1SN hoses, when tested at impulse pressure equal to 125% of the maximum working pressure for hoses of nominal bore 25 and smaller, and at 100% of the maximum working pressure for nominal bore 31 and above, the hose shall withstand a minimum of 150,000 impulse cycles.
For type 2ST and 2SN hoses, when tested at impulse pressure equal to 133% of the maximum working pressure, the hose shall withstand a minimum of 200,000 impulse cycles.
There shall be no leakage or other malfunction before reaching the specified number of cycles.
This test shall be considered a destructive test and the test piece shall be thrown away.
3.4Leakage of hose assemblies
When tested in accordance with EN ISO 1402, there shall be no leakage of evidence of failure. This test shall be considered a destructive test and the test piece shall be thrown away.
When tested in accordance with method B of EN 24672 at a temperature of -40℃ there shall be no cracking of the lining or cover. The test piece shall not leak or crack when subjected to a proof pressure test after regaining ambient temperature.
3.6Adhesion between components
When tested in accordance with EN 28033, the adhesion between lining and reinforcement, and between cover and reinforcement shall no be less than 2,5 KN/m.
Test pieces shall be type 5 for lining and reinforcement and type 2 or type 6 for cover and reinforcement as described in table 1 OF en 28033: 1993.
When tested in accordance with EN ISO 7233, the hoses and hose assemblies shall comply with the values given in table 3.
For hose types 1ST and 2ST, when tested in accordance with EN ISO 6945, with a vertical force of (50±0.5)N, the los of mass after 2,000 cycles shall not be greater than 1 g.
For hose types 1SN and 2SN, when tested in accordance with EN ISO 6945 with a vertical force of (25±0.5)N, the loss of mass after 2,000 cycles shall not be greater than 0.5g.
The fluid resistance tests shall be carried out on moulded sheets of lining and cover compound, 2 mm minimum thickness, of equivalent cure state to that of the hose.
Water based fluid resistance