In SAV commissioning modules, fast and effective flushing is facilitated by provision of a bypass between the flow and return manifolds, with a bore not less than the internal diameter of the manifolds themselves. This promotes the effective flushing of internal debris introduced to the system during construction, and reduces time spent subsequently in cleaning line filters.
The full-bore bypass is combined with a full-bore drain valve alongside the bypass, making it easy to arrange both standard flushing and back flush of the commissioning module circuits. During flushing operations, line filter internals should be temporarily removed.
After flushing has been completed, the bypass is closed off and the filter basket replaced. In operation, SAV’s large capacity strainers capture system debris down to 0.7mm diameter particle size.