Hydraulic valve for use in sealing wall chamber system to create passage window in sealing wall, has filter unit made of plastic and exhibiting guiding elements for sieve plate, where guiding elements are arranged at inner wall of tube body

摘要

The valve has a tube body (1) brought into a hole (2) and made of plastic, where the tube body has passage openings (3) for inflow and outflow of a fluid. A filter unit (4) for flow-through of fluid is arranged in the tube body. The filter unit is made of plastic e.g. glass/carbon-fiber reinforced plastic or polypropylene, and exhibits guiding elements (7) for a sieve plate (8), where the guiding elements are arranged at an inner wall of the tube body. The passage openings are covered by a sieve that is made of metal e.g. stainless steel. The guiding elements are made of polymer concrete.