Model 50 duplex strainers, offered in pipeline sizes from ¾" to 8", are said to continuously remove dirt and debris from pipelines.
The design features two straining basket chambers that are independently isolated by a tapered plug. When one straining basket becomes clogged, a 90-degree turn of the plug handle isolates the straining basket chamber from the flow and diverts the flow through the other basket chamber.
The strainers incorporate a lifting jack to operate the plug handle. In operation, the lifting jack raises the diverter plug up off its seat prior to turning the handle. A built-in stop limits the distance the diverter plug can be raised, preventing debris from building up under the plug.
Hayward Industrial Products, Inc., 900 Fairmount Ave., Elizabeth, NJ 07207. Tel: 908-351-5400; Fax: 908-351-7893.