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Datasheet generated 2026-10-08
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Danfoss SCA-X 125 angleway stop/check valve, 125 mm (5 in) butt weld ASME B 36.10M Schedule 40, 52 bar, steel (code 148B6103)

Danfoss · HVAC & Refrigeration · Check Valves · Denmark · danfoss.com
Part Number
148B6103  ·  HS 8481.30
Danfoss SCA-X 125 angleway stop/check valve, 125 mm (5 in) butt weld ASME B 36.10M Schedule 40, 52 bar, steel (code 148B6103)

Danfoss SCA-X 125 stop/check valve for the SVL Flexline industrial-refrigeration range, code 148B6103. The SCA-X combines a spring-loaded check (non-return) function with a hand-operated stop function: the guided cone permits flow in one direction only and closes against back-flow toward pumps, compressors and vessels, while the spindle under the vented cap allows the line to be shut off manually for service. This SKU is the angleway body in cold-resistant steel with 125 mm (5 in) butt-weld connections to ASME B 36.10M Schedule 40. Flow coefficient Kv 301 m3/h (Cv 356 gal/min); minimum opening differential pressure 0.04 bar (0.62 psi); flow direction marked by an embossed 1-way arrow. Internal backseating lets the spindle seal be replaced while the valve is under pressure. 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. Built on the SVL Flexline modular platform and serviceable with SVL Flexline spare parts.

Technical Specifications

TypeSCA-X 125 (SVL Flexline stop/check valve) Code number: 148B6103 Series: SCA-X (SVL Flexline) Function: Combined check (non-return) and hand-operated stop valve Nominal size: 125 mm (5 in) Flow direction: Angleway Connection: Butt weld (ASME B 36.10M Schedule 40) Housing material: Steel (cold-resistant) Kv value: 301 m3/h (Cv 356 gal/min) minimum opening differential pressure: 0.04 bar (0.62 psi) Flow direction indicator: Embossed 1-way arrow Maximum working pressure: 52 bar (754 psig) Media temperature range: -60 to 150 C (-76 to 302 F) Applicable media: HCFC, HFC, R717 (ammonia)
R744 (CO2) Fluid groups1, 2 Approvals: CE
PED Category III ComplianceEU RoHS
China RoHS Net weight30.6 kg EAN: 5702428479028 Product group: Check valves Approval: CE CE mark: Yes China RoHS compliance: Yes Colour Paint: Reddish brown Connection Code: (2002:S40:125) Connection material: Steel Connection standard: ASME B 36.10M SCHEDULE 40 Cv value [gal/min]: 356 gal/min Direction: Angleway Equipment: Cap EU RoHS compliance: Yes Fluid Group: 1 Inlet connection size [in]: 5 in Inlet connection size [mm]: 125 mm Inlet connection type: Butt weld Kv value [m³/h]: 301 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]: 5 in Outlet connection size [mm]: 125 mm Outlet connection type: Butt weld PED category: III REACH Candidate List substances: No Refrigerants: R134a 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 version: Standard version

Properties

MaterialSteel
Pressure rating52 bar
Temperature range-60 to 150 C
Standard size125 mm
MOQ1

Compatibility

Danfoss SVL Flexline SCA-X stop/check valve. Select by nominal size (125 mm / 5 in), flow body (angleway) and connection standard (ASME B 36.10M Schedule 40 butt weld). EN 10220 and ASME B 36.10M weld-end preparations are not interchangeable — confirm the mating pipe schedule before ordering. The SCA-X adds a hand stop to the check function; where check-only is required, use the CHV-X of the same size. Mount with the embossed arrow in the direction of intended flow.

Approvals

Attached Documents