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Cast Bronze or Cast Aluminum Strainer with Flanged Port

MODEL
72 SERIES

Twin Strainer
Double Strainer
Pipeline Strainer
Basket Strainer
Process Strainer
Industrial Strainer

Twin Filter
Double Filter
Pipeline Filter
Basket Filter
Process Filter
Industrial Filter


 

 
Twin Strainer / Duplex Filter for Industry & Business
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Kraissl Twin Filter
Model 72 Series
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» 72 Brochure (PDF file)

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FEATURES

  • Hand clamp requires no special tools on low pressure models.
  • Valve handle shields side in use.
  • Accessible swing yoke closure for easy basket cleaning.
  • Continuous flow without interruption during changeover.
  • Tapered valve plug for durability.
  • Drain connections on each basket chamber.
  • Interchangeable strainer, filter and double element baskets.
  • Bodies individually pressure tested to UP specifications.
  • Spring handle holds basket on seat.
  • Independent gland for external stem packing access.
  • Adjustable locking flange establishes valve clearance.
  • Mounting feet provided

Cast Bronze or Cast Aluminum Strainer with Flanged Port — Pressure Range 200 PSIG

PURPOSE
Kraissl pipeline strainers and filters protect pumps, nozzles, valves, heat exchangers and other expensive pipeline equipment from harmful contamination by catching dirt and debris.

APPLICATION
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 strainers are listed by Underwriters Laboratories, Inc. (U.L.), and are individually tested to U. L. 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.

DESIGN SPECIFICATIONS
Model 72 and 72F series bronze or aluminum strainers are furnished in both standard and high pressure models with flanged of NPT threaded port connections. Internal channels are 100% full-flow, having the same cross-sectional area as the equivalent pipe size. Standard pressure models are furnished with our quick-opening, hand-clamp for easy access. High pressure models are stud-and-nut body cover closures. Refer to our drawings A2346 and A2347 for sizes, ratings and dimensions. Materials of construction Include rugged cast bronze or aluminum bodies, covers and valve plugs, and brass, stainless steel or monel baskets. Special valve plugs can also be furnished in stainless steel or other materials.

These duplex strainers have a built-in, tapered plug valve that directs flow through either side without shutting off the flow. A valve handle guard 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. Drain plugs are provided in each of the valve and basket chambers. An adjustable locking flange holds the 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.

Strainer baskets are fabricated from perforated metal. The smallest common perforation size is 1/64 inch in brass and 1/32 inch in stainless steel. Filter baskets are manufactured by using fine mesh wire cloth over supporting perforated metal. Interchangeable strainer, filter and double element baskets provide a flexible range of operating choices. The basket is held on its seat by a spring basket handle. Normal flow is through the interior of the basket which then contains the collected debris when the basket is lifted out for cleaning. Reverse flow is also possible if desired. Magnet inserts are available to help eliminate fine metallic ferrous particles.

All high pressure models with stud-and-nut closure are supplied with balancing valve assemblies to equalize pressure and ease valve turning. These should be specified on standard pressure models when used above the following pressures: 3/4" through 1-1/2" inclusive, 100 psig; 2" & 2-1/2', 80 psig; 4 inch through 8 inch - 15 psig.

An optional lifting jack can be provided to lift the valve plug off its seat for ease in valve turning in rough service on sizes 1 through 4. A lifting jack is standard on 5,6 and 8 inch sizes.


DUPLEX STRAINERS & FILTERSMODEL 72 & 72F SERIES - DUPLEX STRAINERS FOR MAXIMUM WORKING PRESSURES TO 200 PSIG HAND CLAMP (YOKE) CLOSURE

Stud and Nut Closure also available for higher pressures and temperatures

DOUBLE ELEMENT BASKETS
These units can be supplied with out patented double-element baskets which are easily disassembled for cleaning and provide greater straining areas in the same housing.


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

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