Duplex H-Type Strainers0 pages
AN SPX BRAND
nnnnDuplex H-Type Strainer
nnnn8" - 36" NB
nnnnDuplex H-TYPE Strainer 8" - 36" (200 mm - 900 mm)
nnnnThe Duplex H-Type strainers are designed for larger size applications where interruption of the flow for basket cleaning
nnnnis not permitted. This range of duplex strainers employs a simple method for changeover, using two sliding gate valves,
nnnnoperated manually by screwed shafts via an external handwheel. Operating shafts are interconnected for simultaneous
nnnnoperation, thus eliminating any possibility of completely shutting off the liquid flow. Provided with a valve position
nnnnindicator showing which chamber of the filter is on stream. Access to the filter baskets is through quick release covers.
nnnnThe lightweight baskets are quickly and easily removed for cleaning without the need for any tools, lifting gear or
nnnnspecialised knowledge and with minimum down time.
nnnnStandard Features
nnnn> Multiple lightweight baskets for easy handling
nnnn> Sliding gate type valves with positive compression seating
nnnn> Stepped angled basket seat for minimum pressure drop and positive basket seating
nnnn> Robust basket support cages complete with replaceable mesh inserts (when required)
nnnnreducing spares holding and operating costs
nnnn> Quick release covers for convenient basket removal without the need for tools or lifting gear
nnnn> Resilient cover 'O' seals
nnnn> Filtration — 2 mm dia. perforations down to 45 microns (coarser filtration available)
nnnn> External valve position indicator showing which chamber is on stream
nnnn> Replaceable valve seats
nnnn> Synchronised chain drive
nnnn> Standard in cast iron and cast steel, all fitted with baskets and inserts
nnnnas required
nnnn> External pressure equalising valve
nnnn> Flanged to ASME Class 250FF and Class 300RF, can be drilled
nnnnto ASME Class 1 50, BS tables and DIN standards
nnnnOptions
nnnn> Internal protective coatings
nnnn> Automatic valve changeover operation
nnnn> Cathodic protection for seawater service
nnnn> Reinforced baskets to withstand high differential pressures
nnnn> Automatic backflushing facilities for both suction and discharge duties
nnnn> Magnetic element assemblies
nnnn> Pleated baskets for higher filtration area
nnnn> DP gauges and switches
nnnn> Flanged vents and drains
nnnnSpecials
nnnn> Cast or fabricated units for higher working pressures
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