cBallast
Industrial Parts Catalog
Datasheet generated 2026-10-09
sales@cballast.com
cballast.com

Danfoss SNV-ST gauge valve, G 1/2 A (external) inlet x G 1/2 A (external) outlet, low-temperature steel (code 148B3745)

Danfoss · HVAC & Refrigeration · Needle Valves · Denmark · danfoss.com
Part Number
148B3745  ·  HS 8481.80
Danfoss SNV-ST gauge valve, G 1/2 A (external) inlet x G 1/2 A (external) outlet, low-temperature steel (code 148B3745)

Danfoss SNV-ST gauge valve (a stop needle valve configured for pressure-gauge, purge, charging and isolation points, with parallel-thread G connections on both ends) for industrial-refrigeration service, code 148B3745. The SNV series is a hand-operated stop/needle service valve with a sturdy back-seating (metal-to-metal) spindle; it needs no specific flow direction (bi-flow) and gives favourable, throttleable flow characteristics. This SKU has G 1/2 A (external, parallel) inlet x G 1/2 A (external) outlet connections to ISO 228/1. Housing and bonnet are low-temperature steel, built to the Pressure Equipment Directive. Maximum working pressure 52 bar (754 psig); media temperature range -60 to 150 C (-76 to 302 F). Applicable to HCFC, non-flammable HFC, R717 (ammonia) and R744 (CO2). Specifications per Danfoss store code 148B3745.

Technical Specifications

TypeSNV-ST gauge valve
Code number148B3745
SeriesSNV (stop / gauge needle valve, industrial refrigeration)
Nominal connection size1/2 in
ConnectionsG 1/2 A (external) inlet x G 1/2 A (external) outlet
Connection standardISO 228/1 (G, parallel thread)
Body / bonnet materialSteel
SeatBack-seating, metal to metal
FlowBi-flow (no specified flow direction)
DirectionAngleway
Maximum working pressure52 bar (754 psig)
Media temperature range-60 to 150 C (-76 to 302 F)
Applicable mediaHCFC, non-flammable HFC, R717 (ammonia), R744 (CO2)
Fluid groups1, 2
Conformity assessmentPED Article 4, paragraph 3 (sound engineering practice)
ApprovalsEAC; TUV-tested per Danfoss code page
Net weight0.39 kg
EAN5702428179324
Product groupShut-off and regulating valves
ApprovalEAC
Body materialSteel
China RoHS complianceYes
Colour PaintCr3 / TLP
Connection materialSteel
EquipmentCap
EU RoHS complianceYes
Flow directionBi-flow
Fluid Group1
Identical product148B4179
Inlet connection size [in]1/2 A
Inlet connection typeG
Inlet Internal/ExternalExternal
Max. Working Pressure [bar]52 bar
Max. Working Pressure [psig]754 psig
Outlet connection size [in]1/2 A
Outlet connection typeG
Outlet Internal/ExternalExternal
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

MaterialSteel
Pressure rating52 bar
Temperature range-60 to 150 C
Standard size1/2 in
Thread standardISO 228/1 (G)
MOQ1

Compatibility

Danfoss SNV stop/gauge needle valve. Select by connection type and size (here G 1/2 A both ends) and by housing material — SNV-ST is low-temperature steel (52 bar / -60..150 C) and SNV-SS is stainless steel (65 bar / -60..200 C) for corrosive or higher-duty service. Each connection combination is a separate order code; confirm port type and size before ordering. Compatible with HCFC, non-flammable HFC, R717 (ammonia) and R744 (CO2) refrigeration systems.

Approvals

Attached Documents