GOST 5398-76 Pressure Suction And Discharge Hose Detailed Product Description Suction water, oil, acid/alkli and sand hoses. ID from 25mm to 250mm. PRESSURE-ABSORBING RUBBER HOSES, NOT REINFORCED, WITH TEXTILE SKELETON, GOST 5398-76. Hoses with textile skeleton; Metal spiral have the soft cuffs at the ends for joining to armature. GOST 5398-76 Hose pressure-suction with a textile frame and a metal spiral, unreinforced. Suitable for suction and delivery of various liquids, fuels, petroleum-based oils and gases. Two groups of hoses are made, depending on the operating conditions: Group 1 - Suction, Group 2 - Pressure-suction. Sleeves are divided into classes, depending on the purpose and working environment: - Gasolines, diesel fuel, oils for petroleum. basis, B(A) - antistatic design; - Technical water; - Gas, air; - weak solutions of acids and alkalis (concentration up to 20%). Symbol example: Sleeve B-2-25-10 HL GOST 5398-76, where - hose class corresponding to the working environment (Gasoline); 2 - sleeve group (Pressure-suction); 25 - inner diameter (mm); 10 - working pressure in kgf/cm2 (10 kgf/cm2 = 1 MPa); - climatic design for areas with a cold climate. Hoses meet ISO 1823-75 International Standard except stretch at hydraulic pressure and strength at ozone influence definitions.