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Datasheet generated 2026-10-08
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Danfoss FIA 25 straightway strainer housing, 25 mm (1 in) butt weld, 52 bar, steel (code 148B5447)

Danfoss · HVAC & Refrigeration · Filters & Driers · Denmark · danfoss.com
Part Number
148B5447  ·  HS 8421.39
Danfoss FIA 25 straightway strainer housing, 25 mm (1 in) butt weld, 52 bar, steel (code 148B5447)

Danfoss FIA 25 straightway strainer housing for the SVL Flexline industrial-refrigeration range, code 148B5447. The FIA is an in-line strainer fitted ahead of automatic controls, pumps and compressors to protect them from weld scale, swarf and dirt — at initial plant start-up and, with a fine insert, for permanent filtration. This SKU is the steel housing with bolted cover, 25 mm (1 in) butt weld connections to EN 10220. The filter element is the separate FIA INS strainer insert (available 38, 72, 100, 150, 250 and 500 micron, plain or pleated) and is removed for cleaning without breaking the line connections. Maximum working pressure 52 bar (754 psig); media temperature range -60 to 150 C (-76 to 302 F). For HCFC, non-flammable HFC, R717 (ammonia) and R744 (CO2) systems.

Technical Specifications

TypeStrainer housing, FIA 25 (SVL Flexline)
Code number148B5447
SeriesFIA (SVL Flexline)
Nominal size25 mm (1 in)
Flow patternStraightway
ConnectionButt weld (EN 10220)
Housing materialSteel
Maximum working pressure52 bar (754 psig)
Media temperature range-60 to 150 C (-76 to 302 F)
Filter elementseparate FIA INS strainer insert (38/72/100/150/250/500 micron, plain or pleated) — not included
Equipmentbolted cover
Product groupFilters and strainers
ApprovalsCE
ComplianceEU RoHS, China RoHS
Net weight2.9 kg
EAN5702428476324
China RoHS complianceYes
Colour PaintReddish brown
Connection Code(2002:S80:25)
Connection materialSteel
Connection standardASME B 36.10M SCHEDULE 80
Cv value [gal/min] 100 plain47.11 gal/min
Cv value [gal/min] 100 pleated60.76 gal/min
Cv value [gal/min] 150 plain46.23 gal/min
Cv value [gal/min] 38 plain51.07 gal/min
Cv value [gal/min] 72 plain48.87 gal/min
Cv value [gal/min] 72 pleated63.84 gal/min
DirectionStraightway
EU RoHS complianceYes
Flow direction indicatorEmbossed 1-way arrow
Fluid Group1
Inlet connection size [in]1 in
Inlet connection size [mm]25 mm
Inlet connection typeButt weld
Kv value [m3/h] µ100 plain10.5 m³/h
Kv value [m3/h] µ150 plain10.7 m³/h
Kv value [m3/h] µ150 pleated13.8 m³/h
Kv value [m3/h] µ250 plain11.1 m³/h
Kv value [m3/h] µ250 pleated14.5 m³/h
Kv value [m3/h] µ500 plain11.6 m³/h
Max. Working Pressure [bar]52 bar
Max. Working Pressure [psig]754 psig
Outlet connection size [in]1 in
Outlet connection size [mm]25 mm
Outlet connection typeButt weld
PED categoryArt. 4, par. 3
REACH Candidate List substancesNo
RefrigerantsR113
Temperature range [°C] [max]150 °C
Temperature range [°C] [min]-60 °C
Temperature range [°F] [max]302 °F
Temperature range [°F] [min]-76 °F
Valve versionStandard version

Properties

MaterialSteel
Pressure rating52 bar
Temperature range-60 to 150 C
Standard size25 mm
MOQ1

Compatibility

Danfoss SVL Flexline FIA strainer housing. Select by nominal size (25 mm / 1 in), flow pattern (straightway) and connection (butt weld, EN 10220). Steel body. Order the matching FIA INS strainer insert separately for the required filtration grade (coarse 500 micron for start-up clean-down; fine 38-150 micron for permanent filtration). Butt-weld and socket-weld bodies are not interchangeable — confirm the pipe-end preparation before ordering.

Approvals

Attached Documents