Strainer A strainer is equipment installed in pipelines to remove debris from the pipeline flow during pre-commissioning tests and to protect the pump and other instruments during commercial operation. The debris is filtered as the fluid flows through the screen installed inside the strainer.

Bucket A bucket strainer is applicable in case which in case a big-size filter is required or when the debris is has piled up.
Flanged The flanged end is the most common end connection type for a bucket strainer.