Temporary Strainers

Specifically designed for the filtration of debris, in the protection of fluid and gas handling equipment during the commissioning and start up periods.
The strainers are easily installed between flange without any modification to the surrounding pipework and without the need for special spool pieces.
With its robust design these strainers are constructed to work at high differential pressures.

Temporary strainers are clearly seen to be in position by virtue of its signal arm, elongated for easy identification. The flow passes from inside to out, collecting debris in the cage facilitating removal. If required strainers can be manufactures for reverse flow or to suit customer specification.

Specifications:

• Sizes range from 1” up to 48” and are suitable for bolting between ASME B16.5 Class 150, 300, 600 B.S10 and DIN standards for flat and raised face flanges.
• Also available for ring joint or tongued and grooved type flanges.
• An elongated signal arm is provided to give easy indication of the strainers location. Perforated strainers are available in a range of perforation sizes with 2mm diameter perforations as standard.
• Normal construction is mild steel sheets, to BS 1449, and stainless steel BS 970 but monel and other materials are available on request.
  
  For finer filtration stainless steel woven wire gauze to BS 970 is supplied spotwelded to the internal surface of the strainer, which ensures that they are completely supported.
  Mesh lining is available from 20 mesh (0.037 aperture) up to 80 mesh (.007”).
  If even finer degrees of filtration are requires inserts can be supplied in sizes down to 300 mesh (.002 aperture)

SIMPLEX & DUPLEX FILTERS

Plenty Filters have a standard range of basket type strainers of simple robust construction. These can be supplied as Simplex (single) basket type for general applications where the process flow is intermittent or can be stopped for element cleaning such as tanker loading or drum filling. Alternatively they can be of Duplex (dual) basket type incorporating two 100% capacity filtration chambers connected by an integral flow changeover valve permitting flow to be switched between chambers, enabling basket cleaning to be performed without interruption to process flow such as is necessary on cooling water systems or gland sealing systems.

Fig.

Simplex Type S

The general purpose standard, single basket filter with a quick-release cover for easy maintenance.  The design does not require specialised tools or knowledge, and results in a minimum of downtime.  Suitable for both liquid and gas applications.

Sizes : 1" to 12" bore, flanged to ANSI 125/250FF and 150/300 RF. Can be drilled to BS tables and DIN standards.  Also available with screwed connections 1" and 1½" sizes.

Materials : Cast iron, cast steel and stainless steel, all fitted with cleanable baskets and inserts or disposable gas cartridges as required.

Fig.

Simplex Type T

Extends the range of our standard Simplex Type S filters up to higher pressures.  Suitable for both liquid and gas and available with bolted or quick-release type covers.

Sizes : 2" to 12" bore, flanged to ANSI 300RF, 600RF and 900RF. Can be drilled to BS tables and DIN standards.

Materials : Cast steel or stainless steel, all fitted with baskets and inserts are required.

Data sheet

BathTub (T Type)

A range of simple strainers intended for service similar to temporary conical strainers but with their own element housing. Specifically designed for location into a pipework system that cannot be split to extract the screen after commissioning is complete, or where the strainer is to be left installed as an additional permanent safeguard.  Units may be flanged or welded into the line and the screen is extracted through the branch opening.  Each unit is provided with a flanged cover.

Bathtub strainers may also be installed as a permanent strainer for removal of course particles or where contamination is minimal.

Sizes : 6" - 24" NB as standard.

Materials : Body : Carbon steel, Stainless steel, 90/10 Cupro nickel alloy, 6MO High alloy stainless steel.

Screen : Mild steel, Stainless steel, or special alloy as requested.

Engineered solution available for this product

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Fig.

Fabricated Simplex (Simplus)

Welded steel single basket filter units designed to increase the capacity and maximum pipe size available in the cast product range.

Fabricated design allows options of bolted or quick release covers to be selected and easy adaption to suit customer requirements for materials and design conditions etc.

Sizes : 6" to 20" N.B. Flanged or butt weld connections

Materials : Fabricated from carbon steel as standard or stainless steel to special order, all fitted with baskets and inserts as required.

Fig.

Large Duplex

The large range of Duplex filters employs a simple rugged and positive method for changeover without interruption of the flow using two inter-connected valves operated by screwed shafts ensuring positive sealing when isolating each side for cleaning elements.  Electrically operated changeover is available as an optional extra.

Sizes : 6" to 36" bore, flanged to ANSI 125FF and 300RF.  Can be drilled to ANSI 150, BS tables and DIN standards.

Materials : Standard in cast iron and cast steel, all fitted with baskets and inserts as required.

Fig.

Small Duplex

A range of small Duplex strainers for use in pipelines operating continuously where a single (Simplex) filter can not be used as the flow would have to be interrupted to clean the element. Twin filtration chambers are each rated for 100% capacity and an integral flow changeover valve permits element removal and cleaning without interruption of flow.

Sizes : 1" to 4" bore, flanged to ANSI 250 FF and 300RF.  Can be drilled to BS and DIN standards. Also available with screwed connections 1" and 1½" sizes.

Materials : Cast iron, cast steel and stainless steel, all fitted with baskets and inserts as required.

Fig.

Fabricated Duplex

The range of Cast Duplex Strainers is enhanced by Plenty's ability and extensive experience in designing and building fabricated Duplex assemblies.  They have been used on gas service high pressure applications or for sizes and flow-rates beyond the capacity of cast Duplex ranges.

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Fig.

Y Type

A range of simple strainers for installation in systems with very low levels of debris.  Y strainers have in line connections and a simple cylindrical screen with access through a screwed or bolted cover depending on size and pressure rating.

Sizes : 1/4" to 24" N.B. as standard.

Connections : Screwed, flanged, butt & socket weld depending on size, material and pressure.

Materials : Bronze, gunmetal, iron, steel, and stainless steel as standard.

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Fig.

Self Draining Filters

A specialised product used in filling lines where one main pipe system is used for several different products, reducing contamination during changeover operations one fluid grade to another.

Size : 2", 3" and 4" Bore, flanged to ANSI 125FF and 300RF.  Can be drilled to ANSI 150, BS tables and DIN standards.

Materials : Cast iron and cast steel as standard, all fitted with baskets and inserts as required.

Options : Can be supplied for other pipe sizes in welded construction in carbon steel or other material as required.

SELF CLEANING & BACKFLUSHING RANGE

Backflushing
For water systems requiring continous operation where supervision is not available Plenty Filters supply a range of automatic backwashing filters.  These use a small percentage of the process flow for intermittent flushing of the filter screen allowing continuous uninterrupted service without operator involvement.

This type of filter is ideal for applications containing large amounts of contaminate such as cooling water in steel mills or where manpower is not available such as remote cooling water intakes to process plant.

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SelfCleaning
For handling fluids with a commercial value where loss of product during cleaning is to be avoided, or fluids where contact during basket cleaning is to be avoided for health and safety reasons, Plenty Filters supply self cleaning filters.  These differ from backwash filters as they use mechanical scrapers to clean the element.  The cleaning is performed whilst the unit is still on-line without interrupting the flow either manual or automatic rotation of the scraper device.

Self Cleaning

Cleaned by one turn of the external handle, either manually or automatically, without interruption of the flow means it is not necessary to open up the pipeline preventing liquid contamination and increasing operator safety. The mechanical cleaning action and low liquid loss during debris dischargemake this design suitable for high value fluids as well as minimising waste disposal concerns.

A wide range of automatic control equipment is available as an option making this unit ideal for critical applications and reduced operator involvement.

Sizes: ¾" to 6" bore with single element. Flanged connections throughout or Screwed on ¾" to 2" sizes. Standard ranges for 14 Bar and 40 Bar operation. Filtration down to 50 micron.

Materials : Cast iron, Cast steel and stainless steel bodies with stainless steel screens.

Design Codes : ANSI B.31.4, ASME VIII or BS.5500.

Compacts - Backflushing

A range of standard fully automatic backflushing filter for use on water duty. Utilising the pressure in the system to clean the filter element by efficient backflushing without interruption of the flow and where disposal of a small percentage of backflush fluid is acceptable.

Sizes : 3" to 12" Bore for pressures from 30 to 200 PSIG. Filtration from 2mm to 50 micron.

Materials : Bodies in cast iron or stainless steel are available as standard.

Large Backflushers

A range of fully automatic backflushing filters to extend the sizes and pressures covered by the 'compact' backflushers.

Sizes : From 12" upwards for any pressure above 30 PSIG. Filtration from 2mm to 50 Micron.

Materials : Welded construction allows manufacture in any material from carbon steel with lining to special alloys.

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Rotary Strainers

A range of fully automatic strainers for coarse screening of raw water systems.  Special screen design enables effective cleaning even with fibrous material present.  Can be used in pressure or vacuum systems.  Fabricated or cast split casing design permits ease of servicing and eliminates disturbing pipework.

Sizes : 6" to 72", flanged to BS tables.

Materials : Bodies in cast iron or stainless steel are available as standard.

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GASCLEAN - GAS FILTERS & FILTER SEPARATORS

In addition to the cast basket filters for gas duties Plenty Filters supply a range of fabricated gas filters to handle higher flows or higher pressures.  Gas filters are designed for removal of solids from gas, in addition Plenty Filters also supply a range of filter separators for removal of liquids or liquids and solids from gas.  The range includes simple knock-out pots and coalescing, vane type or cyclone type separation either individually or combined for two stage filtration.

Gas Filters High Pressure

A comprehensive range of Gas Filter designed for filtration down to 1 micron to cover all Gas pipeline requirements.  Smaller sizes from 2" to 12" are normally covered by cast product ranges (Simplex Type T or J Type) and for larger sizes welded vertical or horizontal designs are available.

Materials : Cast Steel, Welded Steel (Steels available in low temperature grades) or other alloys to client specifications.

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Gas Filters Low & Medium Pressure

Plenty are able to offer both cast and fabricated units for low and medium pressure gas applications.  A comprehensive range of products covering sizes and pressures from 1" units at 30 P.S.I. (2 Bar) to 24" and larger sizes with pressure capabilities up to 740 P.S.I (50 Bar) linking low and high pressure product ranges.

Materials : Brass, Cast Iron & Steel fabricated in Carbon Steel or other alloys to client requirements.

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Customised Products

Plenty Custom build filters and strainers to suit unusual duties such as restricted space installations, exceptionally large pipe sizes or for very high pressure service.

Plenty Filters can also supply a range of Bag and Cartridge filters of welded construction for many applications.

Custom designing also extends to modifications to standard cast product ranges to handle extreme service conditions or to permit manufacture in special alloys.

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MARINER RANGE - FILTERS FOR SHIPS & MARINE USE

Plenty Filters have specially designed the Seaguard range of lightweight compact seawater strainers and Tanker fuel handling strainers for the shipbuilding industry.  In addition many of the standard cast basket filters are available in special materials with stock testing certificates for use on submarines and surface vessels.  The compact design of many products such as the seaguard also makes them preferred choice on the latest designs of fast ferries and commercial vessels.

SeaGuards

Designed initially for handling seawater aboard ship, this cast strainer incorporates a high surface area pleated screen.  The seaguard is suited to pump suction duty by virtue of the straight through flow and resulting very low pressure drop.  An easy release cover and a very compact lightweight body make this ideal for marine installations.

Sizes : 2" - 24" Bore, flanged BS 4504 or ANSI 125, can be drilled to BS tables and DIN standards.

Materials : Gunmetal or aluminium bronze as standard with option of cast iron and DIN standards.

Options : Available shock tested for installation aboard naval vessels.

Engineered solution available for this product

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Engineered solution available for this product

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