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.
Assembly 1. Install the O-ring on the basket, by sliding it over the basket and into the O-ring groove. Do not use sharp tools, as these will damage the O-ring. 2. For perforated baskets with bag filters, slide the bag into the inside of the basket until the bag ring is seated in the basket ring. a. Place the media positioning ring on top of the bag ring with the notches at approximately 90 degrees to the handle. b. Place the ends of the locking latch (wire clip) into the notches on the media positioning ring and snap the locking latch under the basket handle into the notch provided on the bottom side of the basket handle. 3. Place the cover O-ring in the O-ring groove on the top of the body ring. On horizontally mounted units this may require extra care to ensure that the o-ring does not fall out of the groove. 4. Place the basket assembly into the housing and slide down into the strainer housing until the O-ring slips into the seat. The basket handle must be inside of the housing so that the cover may be closed. 5. Close the cover and watch for interference between the cover and basket handle. 6. Rotate the cover swing bolts into position and spin the hand knobs to clamp down the cover (hand tighten only).
Figure 2: Basket Strainer Element inside Basket Strainer
NOTE: For rubber o-rings, periodically apply food grade sanitary lubricant containing no mineral oils to the o-ring for ease of installation.
DM-0005_Basket Strainer_IOM_Rev3.0.docx
3 of 5
Powered by FlippingBook