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Manual Strainers
manual-strainers
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Simplex Basket Strainers
- Sizes 3/8" to 8"
- Iron, Bronze, Carbon Steel or Stainless Steel
- Threaded or Flanged
Another feature is a threaded drain on every size strainer (fitted with a plug). This can be used as a backwash connection, if desired. Sizes 2" and larger are provided with legs for bolting to the floor for rock solid installation.
Wall thicknesses are exceptionally heavy. We have not stinted on weight to save material costs. The basket seats are precision machined to give a tight seal and prevent any material from by-passing the basket. The Eaton Model 72 Simplex Basket Strainer is a top quality, heavy duty unit designed to stand up to the most demanding of applications. There is simply no better simplex basket strainer made. -
Ball Type Duplex Basket Strainers
- Sizes 3/4" to 4"
- Iron, Bronze, Carbon Steel or Stainless Steel
- Threaded or Flanged
No more rushing to finish the job before the out-of-service chamber overflows. And...with no overflow, there’s no cleanup. -
Tee-Type Strainers
Tee-Type Strainers
(22)The Model 91 Fabricated Tee Strainer is available in carbon steel or stainless steel with ANSI Class 150, 300, or 600 flanges or butt weld piping connections. Sizes are available for pipelines from 2" up to 48". This type of tee strainer is typically used for pump protection or other low solids applications.
The Eaton Model 91 Tee Strainer offers several advantages over other strainer designs. The strainer is very compact, important in applications where space is restricted. Unlike most other strainers the Model 91 can be used in both vertical or horizontal installations. A real time saving feature of the Model 91 Tee Strainer is that the strainer screen can be cleaned without draining the strainer vessel.
In many applications the most important feature of the Model 91 is its very low pressure drop as compared to other types of strainers. The combination of a convoluted strainer screen and unrestricted flow path results in very low pressure losses. This low pressure drop makes it ideal for applications such as condensate and boiler feed pump suction where water quality is good and pressure drop is critical.
Two different types of covers are available for the Model 91. The simplest type is the bolted cover which is cost effective and works well in applications where basket changing is infrequent. A davit assembly can also be specified for larger strainers with heavy covers. This makes it possible for a single person to remove the cover of the strainer.
If the strainer will be opened frequently for basket cleaning, a bolted cover is less effective because of the time needed to remove and then tighten the bolts. For these applications, there is a special, hinged, quick-opening cover that is secured by swing bolts. This type of quick-opening cover can even be adapted for higher pressure applications.
Strainer screens for the Model 91 are made of stainless steel – although almost any type of material can be specified. Screen perforations from 1/16" up to 1/2" are available and mesh linings in sizes from 20 to 60 mesh for fine straining applications can be specified. The unique convoluted design of the strainer screen doubles the screen area and completely changes the dirt accumulation pattern on the screen. This makes more effective use of the screen’s straining area and increases the time between screen cleanings.
In larger sizes, because of greater screen area, the Model 91 can be an economical and functionally better choice than the traditional Y strainer.
The Eaton Model 91 Fabricated Tee Strainer will meet the requirements of most tee strainer applications. For those that it doesn’t, it is also easy to customize the strainer to meet special application requirements. The strainer can be designed to meet very tight dimensional restrictions. The Model 91 can also be adapted for straight through or right angle flow, making it ideal for retrofit situations in which strainers were initially omitted.
Steam jacketing is another option available for fabricated tee strainers. Steam jacketing is used to maintain critical fluid temperatures through the strainer. High temperatures are often required to process and transport highly viscous fluids. This modification is designed and effected without any impact on the function or normal maintenance of the strainer. Steam jacketing is available in either carbon steel or Type 316 stainless steel for services of up to 450ºF.
The Eaton Model 91 Strainers can be designed and fabricated to ASME section VIII and ANSI B31.1 codes. -
Model 90 Simplex Strainers
The Eaton Model 90 Fabricated Simplex Strainer has been designed for manufacturing flexibility. It can be made for pipeline sizes from 1" to 48" in carbon steel or stainless steel although other materials can be specified. Three different ratings of flange connections are commonly available: ANSI Class 150, 300, and 600. Higher pressures are also available. The strainer features an in-line design that adapts to most applications.
Two different types of covers are available. The simplest type is the bolted cover which is simple and cost effective and works well in applications where basket changing is infrequent. A davit assembly can also be specified for larger strainers with heavy covers. This makes it possible for a single person to remove the cover of the strainer.
If the strainer will be opened frequently for basket cleaning, a bolted cover can be less effective because of the time needed to remove and then tighten the bolts. For these applications The Eaton Model 90 Strainer can be ordered with a special, hinged, quick opening cover that is secured by swing bolts. This type of quick opening cover can even be adapted for higher pressure applications. For medium size strainers, 8" to 16", a bolted slide hinge cover is available. This permits a single operator to open the cover. Eaton strainers can also be designed and manufactured with special covers to meet any application requirements.
There is a special, unique Eaton strainer basket for the Model 90 Fabricated Strainer. The basket has a slant top design which improves the flow through the strainer and results in significantly lower pressure drops than would otherwise be the case. The slant top design results in a more compact basket which weighs less than an ordinary basket and makes it possible for a single person to remove it from the strainer housing. A real labor saving feature when it becomes time to clean or change out the basket. Strainer baskets for the Model 90 are made of stainless steel, although almost any type of material can be specified. Basket perforations from 1/32" up to 1" are available and mesh linings in sizes from 20 to 400 mesh for fine straining applications can be specified.
The Model 90 Fabricated Simplex Strainer will meet the requirements of most simplex strainer applications. It is also easy to customize the strainer to meet special application requirements.
Some common, easy-to-fabricate modifications are rotated nozzles, offset nozzles, and horizontal-vertical flow. Rotated inlet and outlet nozzles such as a right angle design can eliminate the requirement for an elbow in the downstream piping. Offset nozzles, lowering or raising either the inlet or outlet nozzle, can often eliminate serious alignment and support problems. The horizontal-vertical design with the flow exiting the strainer at a 90 degree angle can simplify the installation of a strainer in an already existing piping system.
Fabricated simplex strainers can also be designed with a backflush/backwash option. In these designs a piping connection with an on/off backflush valve is fabricated at the strainer bottom and has a connection to the bottom of the strainer basket. When solids accumulate in the bottom of the basket, the backflush valve is opened and the differential pressure between the operating pressure and the backflush system removes the solids without shutting the system down. Backflushing is often supplemented by a back washing operation.
Backwashing is done by having fluid flow, under pressure, in the reverse direction into an empty strainer. This flow reversal backwashes the basket and removes the residual dirt. Backwashing is often regarded as a second step, used to remove dirt not removed by backflushing.
Steam jacketing is another option available for fabricated strainers. Steam jacketing is used to maintain critical fluid temperatures through the strainer. High temperatures are often required to process and transport highly viscous fluids. This modification is designed so that there is no impact on the function or normal maintenance of the strainer. Steam jacketing is available in carbon steel and type 316 stainless steel for service up to 450ºF.
Eaton Model 90 strainers can be designed and fabricated to ASME section VIII and ANSI B31.1, 0.3, 0.4, 0.7, and 0.8 codes. Welders are qualified to ASME Sec. IX. -
Temporary Strainers
Temporary Strainers
(28)- 2" to 24"
- Flanged
- Stainless Steel and Monel