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Datasheet generated 2026-10-09
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Danfoss SVL 25 multifunction valve body (SVL Flexline), straightway, 25 mm (1 in) butt weld ASME B 36.10M SCHEDULE 80, steel, 65 bar (code 148B6634)

Danfoss · HVAC & Refrigeration · Globe Valves · Denmark · danfoss.com
Part Number
148B6634  ·  HS 8481.90
Danfoss SVL 25 multifunction valve body (SVL Flexline), straightway, 25 mm (1 in) butt weld ASME B 36.10M SCHEDULE 80, steel, 65 bar (code 148B6634)

Danfoss SVL 25 multifunction valve body for the SVL Flexline industrial-refrigeration range, code 148B6634. This is the bare valve housing (body only, without function module) in a low-temperature steel casting; it is welded permanently into the line and then converted to a shut-off (SVA-S / SVA-L), regulating (REG-SA / REG-SB), stop & check (SCA-X) or check (CHV-X) valve by fitting the matching SVL Flexline function module (complete top part). Standardising on one welded housing lets the valve duty be changed later without re-welding. This SKU is the straightway body with 25 mm (1 in) butt weld connections to ASME B 36.10M SCHEDULE 80. Bi-flow body; maximum working pressure 65 bar (943 psig); media temperature range -60 to 150 C. Steel construction suits HCFC, non-flammable HFC, R717 (ammonia) and R744 (CO2) systems. Order the matching SVL function module separately for the required duty.

Technical Specifications

TypeMultifunction valve body, SVL 25 (SVL Flexline)
Code number148B6634
SeriesSVL Flexline (multifunction valve body / housing)
FunctionBare valve body — accepts SVA-S / SVA-L, REG-SA / REG-SB, SCA-X or CHV-X function module
Nominal size25 mm (1 in)
Flow direction bodyStraightway
ConnectionButt weld
Connection standardASME B 36.10M SCHEDULE 80
Body materialSteel
FlowBi-flow body
Maximum working pressure65 bar (943 psig)
Media temperature range-60 to 150 C (-76 to 302 F)
Applicable mediaHCFC, HFC, R717 (ammonia), R744 (CO2)
Conformity assessmentPED Article 4, paragraph 3 (sound engineering practice)
ApprovalsCE, UKCA
EAN5702428507233
Net weight1.98 Kilogram
Product groupMultifunction valves
ApprovalUKCA
CE markYes
China RoHS complianceYes
Connection Code(2002:S80:25)
Connection materialSteel
DirectionStraightway
EU RoHS complianceYes
Flow directionBi-flow
Flow direction indicatorEmbossed 1-way arrow
Fluid Group1
Inlet connection size [in]1 in
Inlet connection size [mm]25 mm
Inlet connection typeButt weld
Max. Working Pressure [bar]65 bar
Max. Working Pressure [psig]943 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
Used for productSVL 25

Properties

MaterialSteel
Pressure rating65 bar
Temperature range-60 to 150 C
Standard size25 mm
MOQ1

Compatibility

Danfoss SVL Flexline multifunction valve body. Select by nominal size (25 mm / 1 in), body direction (straightway) and connection standard (ASME B 36.10M SCHEDULE 80 butt weld). The same welded body accepts any SVL Flexline function module of the matching size, so the valve duty (shut-off / regulating / stop & check / check) is set by the top part fitted, not by the body. EN (DIN) and ASME weld-end variants are separate codes — confirm the mating pipe standard before ordering. Angleway and straightway bodies of the same size share the function-module range.

Approvals

Attached Documents