Spring OST 108.764.01-80 No. 9 is a spring of suspension systems for particularly critical pipelines. Designed to compensate for extreme thermal deformations, vibration and dynamic loads in ultra-high pressure pipelines. Ensures safe operation of critical pipeline systems in conditions of intense vibrations, aggressive environments and temperature fluctuations from -60°C to +400°C. Maximum load up to 27,000 kgf.Special corrosion-resistant coating. Manufactured in accordance with the requirements of the interstate standard OST 108.764.01-80.