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Datasheet generated 2026-10-09
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Danfoss SCA-X SS angleway check and stop valve, 20 mm (3/4 in) butt weld ASME B 36.19M Schedule 40, stainless steel, 52 bar (code 148B6489)

Danfoss · HVAC & Refrigeration · Check Valves · Denmark · danfoss.com
Part Number
148B6489  ·  HS 8481.30
Danfoss SCA-X SS angleway check and stop valve, 20 mm (3/4 in) butt weld ASME B 36.19M Schedule 40, stainless steel, 52 bar (code 148B6489)

Danfoss SCA-X SS angleway check and stop valve for industrial refrigeration, code 148B6489. Stainless steel body with butt weld connections to ASME B 36.19M Schedule 40, nominal size 20 mm (3/4 in). Maximum working pressure 52 bar (754 psig); media temperature range -60 to 150 C (-76 to 302 F). Flow coefficient Kv 10 m3/h. Combined non-return (check) and manual shut-off function in one body: the cone lifts for forward flow and closes on reverse flow, and can be held shut by the spindle. Part of the Danfoss SVL Flexline programme. For HCFC, non-flammable HFC, R717 (ammonia) and R744 (CO2) systems.

Technical Specifications

TypeSCA-X SS check and stop valve (SVL Flexline)
Code number148B6489
SeriesSCA-X SS
DirectionAngleway
Connection typeButt weld
Connection standardASME B 36.19M Schedule 40
Nominal size20 mm (3/4 in)
Body materialStainless steel
Maximum working pressure52 bar (754 psig)
Media temperature range-60 to 150 C (-76 to 302 F)
Kv value10 m3/h
Flow directionNon-return (forward flow only)
PED assessmentArticle 4, paragraph 3 (sound engineering practice)
ApprovalsCE, UKCA
EAN5702428990295
Net weight1.752 Kilogram
Product groupCheck valves
ApprovalUKCA
CE markYes
China RoHS complianceYes
Colour PaintReddish brown
Connection Code(2502:S40S:20)
Connection materialStainless steel
Cv value [gal/min]11.6 gal/min
EquipmentCap
EU RoHS complianceYes
Fluid Group1
Inlet connection size [in]3/4 in
Inlet connection size [mm]20 mm
Inlet connection typeButt weld
Kv value [m³/h]10 m³/h
Max. Working Pressure [bar]52 bar
Max. Working Pressure [psig]754 psig
Outlet connection size [in]3/4 in
Outlet connection size [mm]20 mm
Outlet connection typeButt weld
PED categoryArt. 4, par. 3
REACH Candidate List substancesNo
RefrigerantsR134a
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

MaterialStainless steel
Pressure rating52 bar
Temperature range-60 to 150 C
Primary standardASME B 36.19M Schedule 40
Standard size20 mm
MOQ1

Compatibility

Danfoss SVL Flexline SCA-X SS valve. This code is the angleway SCA-X SS with butt weld (ASME B 36.19M Schedule 40) ends. Confirm line size (20 mm (3/4 in)), connection type/standard, direction (angleway) and refrigerant before ordering.

Approvals

Attached Documents