Technical rubber tubes GOST 5496-78
Rubber tubes are used to supply liquids, air and gases with a pressure of no more than 0.05 MPa (0.5 kgf/cm), and are also used as a rubber hose for watering. TYPES Operating conditions Type 1. ACID-ALKALI RESISTANT. Solutions of acids and alkalis with a mass fraction of up to 20% (except for nitric and acetic acids), water, air and inert gases. Temperature range - from -30°С to +50°С Type 2. HEAT RESISTANT. Air (up to +90°C), water vapor (up to 140°C). Temperature range - from -30°С to +140°С. Type 3. FROST-RESISTANT. Air, nitrogen and inert gases. Temperature range - from -45°С to +50°С. Type 4. OIL AND PETROL RESISTANT. Oil, gasoline. Temperature range - from -30°С to +50°С. Type 5. UNIFIED. For use in the conditions specified for types 1,3,4, as well as for areas with a tropical climate in products of groups I; III categories 2; 3; 4; 5; according to GOST 15152–69 Solutions of acids and alkalis with mass fractions up to 20% (except for nitric and acetic acids), water, air (up to +90°C), water steam (up to 140°C); nitrogen and inert gases, oil, gasoline, as well as diesel oils and diesel fuels. Temperature range - from -50°С to +50°С Type 6. FOR FOOD INDUSTRY. Food products. Temperature range - from -30°С to +40°С.
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