Danfoss KVR 12 condensing pressure controller — 12 mm (1/2 in) flare, 5 – 17.5 bar, code
Danfoss

Danfoss KVR 12 condensing pressure controller — 12 mm (1/2 in) flare, 5 – 17.5 bar, code

Part number034L0091Item numberDANFOSS-034L0091HS code8481.10
Danfoss KVR12 mm
MaterialSteel body, stainless steel bellows; copper ODF connection stubs
HVAC & Refrigeration
Pressure Regulating Valves
MOQ:1

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Product Description

Danfoss KVR 12 condensing pressure controller (code 034L0091) from the Danfoss KVR range of mechanical, self-acting pressure regulating valves for commercial and light-industrial refrigeration. The KVR is installed in the liquid line at the condenser outlet and maintains a constant minimum condensing pressure. In air-cooled systems it holds the condensing pressure up during low ambient temperature so the expansion valve keeps a sufficient pressure differential; it is normally combined with an NRD differential check valve fitted in the hot-gas bypass to the receiver. This SKU has 12 mm (1/2 in) flare connections (inlet and outlet), a regulating range of 5 – 17.5 bar (73 – 254 psig) and a maximum working pressure of 28 bar (406 psig); media temperature range -45 to 130 C (-49 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. UL listed (C UL US), EAC and RoHS. Price on quote.

Technical Specifications

Type
Condensing pressure controller, KVR 12 Code number: 034L0091 Series: Danfoss KVR mechanical pressure regulating valve Function: Condensing pressure regulation, modulating Connection: 12 mm (1/2 in) flare, inlet and outlet Connection type: Flare Regulating range: 5 – 17.5 bar (73 – 254 psig) Max. working pressure (PB/MWP): 28 bar (406 psig) Media temperature range: -45 to 130 C (-49 to 266 F) Body design: Compact angle design, hermetic brazed construction, stainless-steel bellows Pressure test port: 1/4 in Schrader valve Applicable refrigerants: R1234yf, R1234ze(E), R134a, R22, R404A, R407A, R407C, R407F, R407H, R422B, R422D, R448A, R449A, R449B, R450A, R452A, R454A, R454C, R455A, R507A, R513A, R515B, R516A Conformity assessment: PED category Art. 4, par. 3 (sound engineering practice) Approvals: UL (C UL US Listed), EAC, RoHS, RoHS China Net weight: 0.41 kg Gross weight: 0.46 kg EAN: 5702428411646 Product group: Press. and temp. regul. valves Approval: C UL US LISTED Approval file name: REFRIGERANT VALVE 53R0 China RoHS compliance: Yes Connection Code: (3011:X:13) Customer part number: 00V073 Equipment: Schrader valve access port EU RoHS compliance: Yes Factory setting [bar]: 10 bar Factory setting [psig]: 145 psig Flow direction indicator: Engraved 1-way arrow Inlet connection type: Flare Inlet size [in]: 1/2 in Inlet size [mm]: 12 mm Lubricants compatibility: Oilfree applications Max. test pressure [bar]: 31 bar Max. test pressure [psig]: 450 psig Max. Working Pressure [bar]: 28 bar Max. Working Pressure [psig]: 406 psig Medium temperature range [°C] [max]: 130 °C Medium temperature range [°C] [min]: -45 °C Medium temperature range [°F] [max]: 266 °F Medium temperature range [°F] [min]: -49 °F Oil free refrigerants: R1234ze(E) Other RoHS documentation: EAEU RoHS Outlet connection type: Flare Outlet size [in]: 1/2 in Outlet size [mm]: 12 mm P band max. [bar]: 6.2 bar P band max. [psi]: 90 psi Rated cap. conditions [IMP]: Delta p hotgas=6 psi Rated cap. conditions [SI]: Delta p hotgas=0.4 bar Rated cap. R134a, Hot gas [kW]: 11.6 kW Rated cap. R134a, Hot gas [TR]: 3.03 TR Rated cap. R22, Hot gas [kW]: 13.2 kW Rated cap. R22, Hot gas [TR]: 4.13 TR Rated cap. R404A/R507A [kW]: 36.6 kW Rated cap. R404A/R507A [TR]: 8.2 TR Rated cap. R407C, Hot gas [kW]: 14.3 kW Rated cap. R407C, Hot gas [TR]: 4.5 TR Rated cap.R404A/R507,Hot gas[k: 12 kW Rated cap.R404A/R507,Hot gas[T: 3.27 TR Rated capacity R134a [kW]: 47.3 kW Rated capacity R134a [TR]: 11.8 TR Rated capacity R22 [kW]: 50.4 kW Rated capacity R22 [TR]: 12.7 TR Rated capacity R407C [kW]: 54.4 kW Rated capacity R407C [TR]: 13.8 TR REACH Candidate List substances: Lead (CAS no. 7439-92-1) Refrigerants: R1234yf Regulation range [bar] [max]: 17.5 bar Regulation range [bar] [min]: 5 bar Regulation range [psig] Pe [max]: 254 psig Regulation range [psig] Pe [min]: 73 psig UL approved refrigerants: R134a UL mark: Yes

Standards & Compliance

Standard
Danfoss KVR
Size / Series
12 mm
Material
Steel body, stainless steel bellows; copper ODF connection stubs
Pressure Rating
28 bar (406 psig)
Temperature Range
-45 to 130 C (-49 to 266 F)
HS Code
8481.10

Compatibility & Fitment

Select a KVR by body size (KVR 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 KVR is normally paired with an NRD differential valve for condenser/receiver pressure control at low ambient. Setpoint is adjustable on the top spindle under the sealing cap.

Not sure if it fits? Email sales@cballast.com with your equipment serial number or photos — we confirm fit before you order.

Product Documentation

Document preview: Danfoss 034L0091 — OEM Product Page

Catalogue entry last verified: 2026-08-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.

Frequently asked questions

Where can I buy 034L0091?
034L0091 can be ordered from cballast.com as a Danfoss catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
What is the manufacturer part number for this Danfoss product?
The manufacturer part number is 034L0091.
What is the HS code for 034L0091?
The customs tariff (HS) code for 034L0091 is 8481.10.
Who manufactures 034L0091?
034L0091 is a Danfoss product in the HVAC & Refrigeration range.
Is a datasheet available for 034L0091?
Yes — the 034L0091 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 034L0091?
The minimum order quantity is 1.
Is 034L0091 available?
Yes — 034L0091 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).