DM-0005_Basket Strainer IOM_Rev2.0

Safety Precautions 1. Do not exceed temperature or pressure rating of the strainer assembly.

2. Do not loosen or remove any basket strainer cover swing bolts while the strainer is under pressure. 3. Do not attempt to pull wires or debris from the strainer basket with bare hands. Wires and metal shards can be extremely sharp. 4. Lockout supply pump(s) and other equipment in-line with the strainer during cleaning to prevent accidental operation when strainer is open. 5. Use protective gloves when removing strainer element and clearing debris from element. 6. Use only Sani-Matic replacement parts.

Installation & Operation Basket strainers are designed for flow in one direction. The proper orientation results in the particulates being collected on the inside of the strainer basket. Basket strainers are supplied only as ‘Side-Inlet’ flow, as indicated by the arrow on the side of the housing. Strainers should be installed with the housing in a vertical orientation (horizontal configuration options are available). The piping should be adequately supported so that the piping does not place excessive stress on the strainer fittings. If the strainers are to be installed with the housing in a horizontal orientation, the strainer basket must be supplied with support bars to hold the strainer basket concentric with the housing when it is assembled. To monitor the buildup of particulates in the strainer element during operation, pressure gauges may be installed on both sides of the strainer to measure differential pressure. When the strainer has been cleaned, it will have the minimum differential pressure at the operating flow rate. If the strainer starts to get plugged, this can be detected by an increase in the differential pressure. In addition, electronic signals from differential pressure sensors may be included to automatically detect and alarm the control system. Valves may also be added downstream and / or upstream of the strainer to allow opening and manual cleaning of the basket without draining the entire line. The strainer is a passive device that is designed to catch particulates larger than the openings in the basket. Note that flat particulates may fit through Wedgewire slots, allowing larger particulates to pass through. If the strainer gets plugged with debris or particulates, the flow rate through the strainer may drop, and the differential pressure will increase. If the strainer gets completely plugged, flow may the completely blocked, and the strainer differential pressure will equal the maximum discharge pressure of the pump (dead headed).

To clear a plugged strainer, refer to the cleaning section.

2 of 5