Tate Andale, Inc. model DU-200 Series Strainer provides continuous flow. High capacity for suction or pressure installations. A continuous flow is maintained by providing two chambers and switching the flow from chamber to chamber with 4 butterfly valves. This allows removal of the out of service basket for cleaning. While the fluid is flowing through the clean basket the access cover of the other chamber may be opened and the clogged basket removed for cleaning. An optional manual backflush arrangement or blowdown connection is available.

Model DU-200 Strainers are available in sizes 1/2” thru 20” for system pressures up to 450 PSIG. The basket access covers are quick-opening or ANSI flanged.

Tate Andale self-cleaning strainers are designed with performance being the upmost priority. Offering high straining ratios from tradionally accepted basket designs, these strainers can reduce operating costs due to longer cycle periods when used in the intermittent/automatic backwash mode. The basket design mode should be the major concern when evaluating self-cleaning strainers. Quite often artificially high straining ratios are achieved by "unusual methods" such as "accordianed" elements. While these elements may technically posses a higher amount of open area achieved by folding the perforate plate into the shape of an accordion, the resultant valleys will clog with debris twice as fast. Tate Andale basket elements have legitimate open area, whether using highly durable wedgewire or perforated plate.

From the cast units to the customizable fabricated units, Tate Andale strainers offer a design that translates directly into longevity and durability. For the strainer for a lifetime, select a Tate Andale.

When evaluating duplex strainers, the consideration should be focused on both performance and the total cost of owning and operating, known as life cycle costs, of the strainer. The design of Tate Andale's duplex strainers are uncompromised by an accountant's pencil. The thick, heavy body walls provide unparalled corrosion allowance. The straining ratios are some of the highest available.

The moving parts are designed to minimize wear. Available wedgewire baskets are the most durable straining elements on the market. All of this adds up to produce the longest lived, most cost efficient, high performance strainers available. Tate Andale strainers may cost more than our competitors, however, spreading this cost over a life expectancy measured in decades, not years, demonstrates that the competing products cost more over the long term.

The high straining ratios, aside from the performance benefits, contribute lower operating costs because the baskets do not need to be cleaned as often. In analyzing the life cycle costs of Tate Andale strainers versus the competition, our designs provide the lowest life cycle costs in the industry.

Tate Andale Guardian Model GS single-basket strainers are available in cast iron, cast steel and cast stainless steel bodies. This uniquely designed Guardian model is available in sizes 3/4-inch through 8-inch. Threaded units are available in 3/4-inch to 3-inch sizes. Flanged units are available in 2-inch to 8-inch sizes.

These precision fitted top-entry basket units feature knob-type, quick opening, positive seating covers that do not require tools to operate. All units have standard O-ring seals. The units are designed for use in system pressures up to 200 W.O.G. Each unit comes with an industry standard basket that is easy to remove and clean. Units that are 21/2 inches and larger are designed with a stainless steel wedgewire basket. Two-inch and smaller units are designed with a stainless steel perforated plate basket.

Guardian Model GS strainers are recommended for batch operations where flow may be interrupted to clean the basket. Typical applications include those with small amounts of debris or for start -up or emergency protection. This compact, trouble-free Guardian strainer model has been designed to be interchangeable with the most standard competitive brands of similar material and size. It is available for immediate shipment.

Tate Andale Guardian Model GD twin-basket strainers are available in cast iron, cast steel and cast stainless steel bodies. This model is easily cleaned without interrupting the fluid flow and has one internal moving part. The Guardian Model GD employs a tapered plug valve for diversion of the flow from chamber to chamber. A unique plug lifting mechanism prevents metal-to-metal contact while diverting the flow. This time-proven design provides both trouble-free and maintenance-free operation.

It is available in 1-inch through 8-inch sizes. Threaded units are available in 1-inch to 3-inch sizes. Flanged units are available in 2-inch to 8-inch sizes. These precision fitted top-entry basket units feature knob-type, quick opening, positive seated covers. All units have standard O-ring seals. They are designed for use in system pressures up to 200 W.O.G.

Each unit is designed with two baskets that are easy to remove and clean. Units that are 2 1/2 inches and larger have stainless steel wedgewire constructed baskets. Two-inch and smaller units have stainless steel perforated plate baskets. The Guardian Model GD includes a positive indicator handle that shows which basket is in service. Additionally, this handle prevents opening the in-service chamber.

Guardian Model GD strainers are installed where continuous operation is required and the line cannot be shutdown for cleaning. This Guardian strainer has been designed to be interchangeable with the most standard competitive brands of similar material and size. It is available for immediate shipment from stock.

Woven wire cloth with a perforated backing sheet, is available where a finer degree of straining is required, e.g lubricating oil service. Wire cloth is available for particle retention as small as 10 microns. Special attention is given to the fabrication of lined baskets to prevent by-passing of debris.

Baskets of wedgewire construction are available when additional strength is required for fine straining and for back-flush type baskets with fine straining requirements. This additional strength creates greater resistance to collapse when flow is reversed for cleaning. Slot widths are available from 0.005" to 0.5".