Filtration Applications
Three Tate Andale model KBF 36-inch automated self-cleaning strainers were installed for primary filtration at a City water plant. The strainers filter water totaling 105,000 gpm from a reservoir before going to the media filter plant. A building and overhead crane system was installed to assist in housing and removing the wedgewire filtration screen for servicing. This allowed the other two strainers to remain in operation.
Tate Andale Filtration Project (click for slideshow)
KBF 36-inch Strainer (click for slideshow)
Tate Andale 1260 Strainer (click for information)
Chemical Applications
Cooling Tower Project

C-Square Industries recently completed a cleaning of a 1200-ton cooling tower utilizing the product. The system was estimated at having 2500 lbs of scale (calcium carbonate) restricting water and sufficient airflow through the cooling tower. Prior to the chemical cleaning, water temperatures to the Chiller were 90 0 F. Upon inspection of the cooling tower, the recommendation was to triple the normal amount of the product usually required to clean the tower. Thirty 55-gallon barrels were shipped to the location of this Fortune 500 company. Work commenced on Friday, Saturday and Sunday. Monday operations revealed that 85% of the tower media was clear. An additional six 55-gallon barrels were sent to remove scale build up on the internal layer of the tower media. The cooling tower and chiller were placed in operation with water temperature reading at 78.5°F from a previous 90°F.
A diesel generator and portable chiller were shut down eliminating an expense of $15,000 dollars a week to the customer in fuel and rental costs.
Major Brewery Project - Cleaning of Ammonia Condenser
Another success story has taken place at a major brewery. The removal of calcium carbonate was performed on two ammonia condensers. The units had efficiency losses of 30 percent depending on ambient temperatures. As illustrated in our photographs, the tube bundles were covered with scale similar to the water distribution pipe with nozzles. After three cleaning periods of utilizing the product (4 to 5 hour periods or 1.5 days) the tubes cleaned down to the bare metal. Flow from the header pipes and nozzles was improved with the removal of calcium that was present in the water distribution system. The only scale deposits left on the system were the distribution pipes where the product was not able to reach due to the nozzle spray pattern.
Illustrated in these pictures is the effects of the product in contact with the calcium carbonate that creates a foaming action and release of carbon dioxide. This is an indicator that the product is working to remove water formed deposits.
After the cleaning, galvanizing was done by a local contractor to prevent oxidation of the ammonia tubes. Upon completing this task the units were placed on line. The operators were able to run the units dry with just ambient temperatures providing enough cooling in order not to trip the units into a shut down mode. This could not be accomplished with the units in the previous condition. (Efficiencies of an evaporative ammonia condensers can be reduced by 30 percent if 1/16 to 1/32 inch of scale accumulates on the tube section of the condenser.) Estimated efficiency of the units at the brewery is now expected to be about 95 percent or better.
Brewery application Images (cick title for slideshow)
Fans and Blowers
Specialty Construction
This fan was constructed in three pieces to allow for ease of installation in a confined area. The fan was disassembled and then re-assembled for operation.




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.
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.
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.
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.
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.


