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Pipeline Strainer

Basket Strainer

Process Strainer

Industrial Strainer
Pipeline Filter

Basket Filter

Process Filter

Industrial Filter

Strainers • Filters • Valves • Pumps — for Industry & Business
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Duplex Sea-View
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» Model 73 Brochure (PDF file)





Strainer baskets are available in all standard perforations and meshes. Filter baskets are made of wire mesh cloth, spot welded over a supporting cylinder of perforated metal. They are available in a wide range of mesh sizes. See drawing A2345 for dimensions.

Sea-View Strainers - for Industrial Cooling Water Filtration

Model 73 Series Duplex Sea View Strainers Threaded-NPT Ports

Kraissl duplex strainers and filters provide a simple, cost effective way to separate particle impurities from fluid systems. Duplex strainers are ideal for applications where continuous flow must be maintained with no flow interruption for basket cleaning. Kraissl Model Series Sea-View are designed to protect cooling systems on marine engines and cooling water installations requiring pipeline strainers, direct sea water cooling, and indirect heat exchanger cooling. In both cases, cooling water strainers are very important. With direct cooling, marine debris can damage the cooling water pump causing the engine to fail, resulting in major repairs. Marine debris can also clog heat exchangers, requiring down-time until cleaned. Installation of cooling water strainers reduces these hazards, increasing the reliability of marine engines. Fine mesh filter baskets can also be provided for use with water supplies and other process flow-line installations.

Kraissl Model 73 Sea-View Strainers offer the following advantages:

Transparent plastic sumps permit visibility of cooling water flow and collected material. Interior or exterior flow permit collection of particles in either the removable basket or in the transparent sump. Baskets are easily accessible without the use of tools. The basket is removed via the hand clamp closure and the removable sump by two wing nuts. Mounting brackets are provided on both simplex and duplex models. These units are very light weight while providing large straining area. Both simplex and duplex units are available in a range of sizes from 1/2 to 4-inch. When installed above the cooling water pump, the strainer becomes a quick means of pump priming. Interchangeable basket elements are available for a wide range of particle separations. Standard Kraissl Model 73 series strainers are manufactured of cast bronze, or stainless steel with transparent plastic basket sumps. Special valve plugs can also be furnished in stainless steel or other materials.Standard strainer baskets are of perforated monel or stainless steel. Duplex strainers are supplied with our special adjustable locking flange which permits adjustment of the tapered valve plug on its seat. A separate external gland is provided to allow easy access to valve stem packing without complete disassembly, even while in service, without changing the valve plug clearance.

The valve lever movement permanent stops and guard on the valve handle shields the side in use. The standard valve handle swings over the inlet port. Special reverse valve handles that swing over the outlet port can also be furnished. Internal channels are 100% full flow having the same cross-sectional area as the equivalent size pipe. Refer to our drawings B3523A and Al 732E for sizes and dimensions. Kraissl products are individually tested toour stringent quality control specifications. These cast pipeline strainers are manufactured according to international standard A.S.T.M. F1199 for use in industrial and marine applications.


These units can be supplied with our patented double-element baskets which are easily disassembled for cleaning and provide greater straining area in the same housing. Special strainer elongated baskets and sumps are also available.


  • Hand clamp requires no special tools
  • Accessible swing yoke closure for easy basket cleaning
  • Mounting bracket provided
  • Transparent Sump accessible by removing two wing nuts
Duplex Models
  • Valve handle shields side in use
  • Continuous flow without interruption during changeover
  • Tapered valve plug for durability
  • Interchangeable strainer, filter and double element baskets

Other Products

Our product lines of cast iron, bronze, aluminum, steel and stainless steel simplex and duplex strainers and filters, including flanged, NPT and weld-end models are covered in separate bulletins. Units can also be furnished in other special metals and higher pressure and temperature ratings.


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The Kraissl Company
Hackensack, New Jersey • USA
American Manufacturer of Heavy Duty
Strainers, Filters, Valves & Pumps

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