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Datasheet generated 2026-10-09
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Danfoss SCA-X 50 angleway check and stop valve, cap, 50 mm (2 in) socket weld ASME B 16.11, steel, 52 bar (code 148B5704)

Danfoss · HVAC & Refrigeration · Check Valves · Denmark · danfoss.com
Part Number
148B5704  ·  HS 8481.30
Danfoss SCA-X 50 angleway check and stop valve, cap, 50 mm (2 in) socket weld ASME B 16.11, steel, 52 bar (code 148B5704)

Danfoss SCA-X 50 combined check and stop valve, store code 148B5704, angleway steel body, fitted with a cap. The SCA-X in the Danfoss SVL Flexline range combines a spring-loaded check function with a manual shut-off, so one valve both prevents reverse flow and isolates the line for service in industrial refrigeration plant. Applicable to R717 (ammonia), R744 (CO2) and fluorinated refrigerants and their oils. Nominal size 50 mm (2 in), socket weld connections to ASME B 16.11; flow coefficient Kv 45 m3/h (Cv 53 gal/min). Steel housing. Maximum working pressure 52 bar g (754 psig); media temperature -60 to 150 C (-76 to 302 F). Conformity assessment PED 2014/68/EU, Category II. Specifications per Danfoss store code 148B5704. EAN 5702428479035.

Technical Specifications

TypeSCA-X 50 check and stop valve (SVL Flexline)
Code number148B5704
Nominal size50 mm (2 in)
Flow direction bodyAngleway
Connectionsocket weld both ends, ASME B 16.11
Flowone-way check (reverse-flow prevention)
Top equipmentCap
Neck typeStandard
Flow coefficient Kv45 m3/h (Cv 53 gal/min)
Housing materialsteel
Net weight4.648 kg
Maximum working pressure52 bar g (754 psig)
Media temperature range-60 to 150 C (-76 to 302 F)
Applicable mediaR717 (ammonia), R744 (CO2), HFC/HCFC refrigerants and oils
Conformity assessmentPED 2014/68/EU, Category II
ApprovalsCE
EAN5702428479035
Product groupCheck valves
ApprovalCE
CE markYes
China RoHS complianceYes
Colour PaintReddish brown
Connection Code(2003:X:50)
Connection materialSteel
Connection standardASME B 16.11
Cv value [gal/min]53 gal/min
DirectionAngleway
EquipmentCap
EU RoHS complianceYes
Flow direction indicatorEmbossed 1-way arrow
Fluid Group1
Inlet connection size [in]2 in
Inlet connection size [mm]50 mm
Inlet connection typeSocket weld
Kv value [m³/h]45 m³/h
Max. Working Pressure [bar]52 bar
Max. Working Pressure [psig]754 psig
MinODP [bar]0.04 bar
MinODP [psi]0.62 psi
Outlet connection size [in]2 in
Outlet connection size [mm]50 mm
Outlet connection typeSocket weld
PED categoryII
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

MaterialSteel
Pressure rating52 bar
Temperature range-60 to 150 C
Primary standardASME B 16.11
Standard size50 mm
MOQ1

Compatibility

Danfoss SVL Flexline SCA-X 50. Select by flow direction (angleway), connection (socket weld ASME B 16.11) and top. EN 10220 and ASME weld-end preparations are not interchangeable — confirm the mating pipe schedule/OD before ordering. Shares the SVL Flexline platform with SVA-S/SVA-L shut-off, REG-SA/REG-SB regulating, SCA-X/CHV-X check valves and FIA strainers of the same nominal size.

Standards

Approvals

Attached Documents