cBallast
Industrial Parts Catalog
Datasheet generated 2026-10-07
sales@cballast.com
cballast.com

Danfoss KVL 12 crankcase pressure regulator — 12 mm ODF solder solder, 0.2 – 6 bar, code

Danfoss · HVAC & Refrigeration · Pressure Regulating Valves · Denmark · danfoss.com
Part Number
034L0048  ·  HS 8481.10
Danfoss KVL 12 crankcase pressure regulator — 12 mm ODF solder solder, 0.2 – 6 bar, code

Danfoss KVL 12 crankcase pressure regulator (code 034L0048) from the Danfoss KVL range of mechanical, self-acting pressure regulating valves for commercial and light-industrial refrigeration. The KVL is installed in the suction line ahead of the compressor and limits the crankcase (suction) pressure to the compressor. It throttles the suction pressure during pull-down after start-up, after hot-gas defrost or after a prolonged standstill, protecting the compressor motor against overload from an excessive suction pressure. This SKU has 12 mm ODF solder ODF solder connections (inlet and outlet), a regulating range of 0.2 – 6 bar (3 – 87 psig) and a maximum working pressure of 18 bar (260 psig); media temperature range -60 to 130 C (-76 to 266 F). Compact angle-design valve with hermetic brazed construction and a stainless-steel bellows; the setpoint is adjustable on the top spindle under a sealing cap and a 1/4 in Schrader valve is provided for pressure testing. Suitable for HFC/HFO refrigerants and hydrocarbons (incl. R290, R600a, R1270). UL listed (C UL US), EAC and RoHS. Price on quote.

Technical Specifications

TypeCrankcase pressure regulator, KVL 12
Code number034L0048
SeriesDanfoss KVL mechanical pressure regulating valve
FunctionCrankcase / suction pressure limiting, modulating
Connection12 mm ODF solder ODF solder, inlet and outlet
Connection typeSolder, ODF
Regulating range0.2 – 6 bar (3 – 87 psig)
Max. working pressure (PB/MWP)18 bar (260 psig)
Media temperature range-60 to 130 C (-76 to 266 F)
Body designCompact angle design, hermetic brazed construction, stainless-steel bellows
Pressure test port1/4 in Schrader valve
Applicable refrigerantsR1234yf, R1234ze(E), R134a, R22, R404A, R407A, R407C, R407F, R407H, R422B, R422D, R448A, R449A, R449B, R450A, R452A, R454A, R454C, R455A, R507A, R513A, R515B, R516A, R1270, R290, R600, R600a
Conformity assessmentPED category Art. 4, par. 3 (sound engineering practice)
ApprovalsUL (C UL US Listed), EAC, RoHS, RoHS China
Net weight0.312 kg
Gross weight0.366 kg
EAN5702428411738
Product groupPress. and temp. regul. valves
ApprovalC UL US LISTED
Approval file nameREFRIGERANT VALVE 53R0
China RoHS complianceYes
Connection Code(3001:X:12)
Cv value [gal/min]3.7 gal/min
EU RoHS complianceYes
Factory setting [bar]2 bar
Factory setting [psig]29 psig
Flow direction indicatorEngraved 1-way arrow
Identical product034L1068
Inlet connection typeSolder, ODF
Inlet size [mm]12 mm
Kv value [m³/h]3.2 m³/h
Lubricants compatibilityOilfree applications
Max. test pressure [bar]19.8 bar
Max. test pressure [psig]286 psig
Max. Working Pressure [bar]18 bar
Max. Working Pressure [psig]260 psig
Medium temperature range [°C] [max]130 °C
Medium temperature range [°C] [min]-60 °C
Medium temperature range [°F] [max]266 °F
Medium temperature range [°F] [min]-76 °F
Oil free refrigerantsR1234ze(E)
Other RoHS documentationEAEU RoHS
Outlet connection typeSolder, ODF
Outlet size [mm]12 mm
P band max. [bar]2 bar
P band max. [psi]29 psi
Rated cap. R404A/R507A [kW]6.3 kW
Rated cap. R404A/R507A [TR]1 TR
Rated capacity R134a [kW]5.3 kW
Rated capacity R134a [TR]0.8 TR
Rated capacity R22 [kW]7.1 kW
Rated capacity R22 [TR]1.2 TR
Rated capacity R407C [kW]6.5 kW
Rated capacity R407C [TR]1.1 TR
REACH Candidate List substancesLead (CAS no. 7439-92-1)
RefrigerantsR1234yf
Regulation range [bar] [max]6 bar
Regulation range [bar] [min]0.2 bar
Regulation range [psig] Pe [max]87 psig
Regulation range [psig] Pe [min]3 psig
UL approved refrigerantsR134a
UL markYes

Properties

MaterialSteel body, stainless steel bellows; copper ODF connection stubs
Pressure rating18 bar (260 psig)
Temperature range-60 to 130 C (-76 to 266 F)
Primary standardDanfoss KVL
Standard size12 mm
MOQ1

Compatibility

Select a KVL by body size (KVL 12 / 15 / 22 / 28 / 35), connection type (flare or ODF solder) and connection size. Flare and ODF-solder versions, and inch versus metric ODF stubs, are separate code numbers with separate EANs — confirm the connection before ordering. The maximum permitted crankcase pressure is adjustable on the top spindle under the sealing cap.

Approvals

Attached Documents