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Datasheet generated 2026-10-09
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Danfoss SVA-S SS 25 straightway shut-off valve, cap, 25 mm (1 in) butt weld ASME B 36.19M Schedule 40, stainless steel, 52 bar (code 148B5399)

Danfoss · HVAC & Refrigeration · Globe Valves · Denmark · danfoss.com
Part Number
148B5399  ·  HS 8481.80
Danfoss SVA-S SS 25 straightway shut-off valve, cap, 25 mm (1 in) butt weld ASME B 36.19M Schedule 40, stainless steel, 52 bar (code 148B5399)

Danfoss SVA-S SS 25 straightway shut-off (stop) valve for industrial refrigeration, code 148B5399. Stainless steel body with butt weld connections to ASME B 36.19M Schedule 40, nominal size 25 mm (1 in). Operated with a cap; bi-directional (bi-flow) shut-off. Maximum working pressure 52 bar (754 psig); media temperature range -60 to 150 C (-76 to 302 F). Flow coefficient Kv 17.4 m3/h (Cv 20.11 gal/min). The SVA-S is the standard-neck stainless shut-off valve in the Danfoss SVL Flexline programme; the renewable seat and cone close tightly and the valve can be dismantled and repaired in line. For HCFC, non-flammable HFC, R717 (ammonia) and R744 (CO2) systems.

Technical Specifications

TypeSVA-S SS 25 shut-off valve (SVL Flexline)
Code number148B5399
SeriesSVA-S SS
DirectionStraightway
Connection typeButt weld
Connection standardASME B 36.19M Schedule 40
Nominal size25 mm (1 in)
Top equipmentCap
Body materialStainless steel
Maximum working pressure52 bar (754 psig)
Media temperature range-60 to 150 C (-76 to 302 F)
Kv value17.4 m3/h (Cv 20.11 gal/min)
Flow directionBi-flow
Applicable mediaHCFC, HFC, R717 (ammonia), R744 (CO2)
PED assessmentArticle 4, paragraph 3 (sound engineering practice)
EAN5702428990219
Net weight3.4 Kilogram
Product groupShut-off and regulating valves
China RoHS complianceYes
Colour PaintReddish brown
Connection materialStainless steel
Cv value [gal/min]20.18 gal/min
EquipmentCap
EU RoHS complianceYes
Fluid Group1
Inlet connection size [in]1 in
Inlet connection size [mm]25 mm
Inlet connection typeButt weld
Kv value [m³/h]17.4 m³/h
Max. Working Pressure [bar]52 bar
Max. Working Pressure [psig]754 psig
NeckStandard
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
Valve versionStandard version

Properties

MaterialStainless steel
Pressure rating52 bar
Temperature range-60 to 150 C
Primary standardASME B 36.19M Schedule 40
Standard size25 mm
MOQ1

Compatibility

Danfoss SVL Flexline SVA-S SS stainless shut-off valve. This code is the straightway SVA-S SS 25 with butt weld (ASME B 36.19M Schedule 40) ends and cap. Confirm line size (25 mm (1 in)), connection type/standard, direction (straightway) and refrigerant before ordering. EN 10220 and ASME weld-end preparations are not interchangeable — the EN cell of this size is a separate code. Shares the SVL Flexline platform with REG-SA/REG-SB regulating valves, SCA-X/CHV-X check valves and FIA strainers of the same nominal size.

Attached Documents