Flow control for large diameter conduits

摘要: A slide blind controls flow through conduits at a flanged connection. The has right and left working plates configured such that one of the is sealed between flanges perimeter thereof adjacent to inner sides flange bolts. joiner member connects plates, handle members extend in directions from corresponding plates. have thickness less than define first second sets bolt holes fasten with either or plate flanges. are significantly lighter weight can be removed for convenient transport.