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Datasheet generated 2026-10-08
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Danfoss SCA-X 65 angleway stop/check valve, 65 mm (2 1/2 in) butt weld EN 10220, 52 bar, steel (code 148B5803)

Danfoss · HVAC & Refrigeration · Check Valves · Denmark · danfoss.com
Part Number
148B5803  ·  HS 8481.30
Danfoss SCA-X 65 angleway stop/check valve, 65 mm (2 1/2 in) butt weld EN 10220, 52 bar, steel (code 148B5803)

Danfoss SCA-X 65 stop/check valve for the SVL Flexline industrial-refrigeration range, code 148B5803. 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 65 mm (2 1/2 in) butt-weld connections to EN 10220. Flow coefficient Kv 72 m3/h (Cv 85 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 65 (SVL Flexline stop/check valve) Code number: 148B5803 Series: SCA-X (SVL Flexline) Function: Combined check (non-return) and hand-operated stop valve Nominal size: 65 mm (2 1/2 in) Flow direction: Angleway Connection: Butt weld (EN 10220) Housing material: Steel (cold-resistant) Kv value: 72 m3/h (Cv 85 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 II ComplianceEU RoHS
China RoHS Net weight5.95 kg EAN: 5702428478762 Product group: Check valves Approval: CE CE mark: Yes China RoHS compliance: Yes Colour Paint: Reddish brown Connection Code: (2001:D29:65) Connection material: Steel Connection standard: EN 10220 Cv value [gal/min]: 85 gal/min Direction: Angleway Equipment: Cap EU RoHS compliance: Yes Fluid Group: 1 Inlet connection size [in]: 2 1/2 in Inlet connection size [mm]: 65 mm Inlet connection type: Butt weld Kv value [m³/h]: 72 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 1/2 in Outlet connection size [mm]: 65 mm Outlet connection type: Butt weld PED category: II 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 size65 mm
MOQ1

Compatibility

Danfoss SVL Flexline SCA-X stop/check valve. Select by nominal size (65 mm / 2 1/2 in), flow body (angleway) and connection standard (EN 10220 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