Hydraulic pivot drive for adjusting shut-off devices in pipelines, has cylinder acting on shaft and spring brake, where force of spring of spring brake acts against piston which is independently pressurized on cylinder
摘要
<p>The hydraulic pivot drive (1) has a cylinder (2) acting on a shaft and a spring brake (3). The spring brake is formed by the cylinder. The force of a spring of the spring brake acts against a piston which is independently pressurized on the cylinder. A housing of the cylinder and the housing of the spring brake are parallely arranged together.</p>
