The Rotagate® Dual Basket Strainer has duty and standby chambers with a pair of integral synchronised dual gate valves that rotate around a common central shaft to facilitate changeover, enabling continual operation whilst cleaning the ‘off-line’ strainer basket.

This unit is of cast construction and comprises a central strainer body casting with a pair of inlet/outlet header castings that house the Rotagate® valve mechanism. The unit has a single handwheel operation, facilitating diversion of the flow from ‘duty’ to ‘standby’ chamber without process interruption. The contaminated basket is accessed via the top bolted closure which can optionally be facilitated with quick-release swing bolts. The changeover shaft is fitted with an axial indicator to identify the on-line chamber. The simplicity and ease of operation is unique in this product class, whilst a 100% seal is achieved for the isolated chambers, from Zero Bar through to 1.1 x Full Flange Rating. The CFD optimised flow-path, coupled with angled top strainer baskets achieves the lowest pressure loss coefficient available for a dual strainer with this unique, time-proven, world-leading design.