Danfoss WVFX 20 Water Regulating Valve NPT 3/4-14 in 4 – 26
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Product Description
Danfoss WVFX 20 pressure-operated water regulating valve, OEM P/N 003N3411. Modulates cooling-water flow to a water-cooled condenser to hold the condensing pressure constant, and shuts the water off when the plant stops. The valve is opened by the condensing (refrigerant) pressure acting on a bellows and is closed by an adjustable spring; the setting is read on a 1–5 scale. High control-pressure version for R410A / high-pressure refrigerants. Water connection NPT 3/4-14 in (ANSI/ASME B1.20.1); refrigerant sensing connection 1/4 in / 6 mm SAE flare. Control pressure range 4 – 26 bar (60 – 375 psig); Kv 3.4 m³/h. Body brass. Max working pressure 16 bar (232 psig). Media: Fresh water, neutral brine. Verify the setting range and refrigerant against the datasheet before ordering.
Technical Specifications
- Brand
- Danfoss
- Part number
- 003N3411
- Model
- WVFX 20 pressure-operated water regulating valve
- Category
- HVAC & Refrigeration — Water Regulating Valves
- Version
- high control-pressure version for R410A / high-pressure refrigerants
- Function
- opens on rising condensing (refrigerant) pressure; proportional (self-acting) regulation of condensing pressure by throttling the condenser cooling water
- Nominal size
- WVFX 20 (DN 20)
- Water-side connection
- NPT 3/4-14 in, ANSI/ASME B1.20.1 (inlet and outlet)
- Refrigerant sensing connection
- 1/4 in / 6 mm SAE flare
- Control pressure range
- 4 – 26 bar (60 – 375 psig)
- Kv
- 3.4 m³/h (Cv 3.9 gal/min)
- Max working pressure (MWP)
- 16 bar (232 psig)
- Media temperature range
- -25 °C to 130 °C (-13 °F to 266 °F)
- Body material
- brass
- Media
- Fresh water, neutral brine
- Packing
- Single pack
- EAN
- 5702428361842
- Materials
- Valve housing hot-pressed brass; regulating seat and bellows stainless steel; adjustment spring steel
- Approvals
- UL Listed (C UL US), EAC, PED, EU RoHS, China RoHS
- Refrigerants (sensing side)
- R32, R410A, R452B, R454B and the standard HFC/HFO set (R134a, R404A, R407C, R448A, R449A, R507A, R513A, etc.) — see datasheet for the full approved list
Standards & Compliance
- Size / Series
- WVFX 20
- Material
- Valve housing hot-pressed brass; regulating seat and bellows stainless steel; adjustment spring steel
- Thread Standard
- ANSI/ASME B1.20.1
- Pressure Rating
- 16 bar (232 psig) max working pressure
- Temperature Range
- -25 °C to 130 °C
- Classification / Approval
- UL Listed (C UL US), EAC, PED, EU + China RoHS
- HS Code
- 8481.80
Compatibility & Fitment
Fit in the cooling-water line to the condenser with the flow arrow in the direction of flow; the refrigerant sensing flare connects to the condenser/receiver. Set the closing pressure on the 1–5 scale to the required condensing pressure. Direct-acting (opens on rising pressure). Confirm code, water connection and setting range before ordering.
Product Documentation
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Technical guides
- Cross-Referencing Danfoss Refrigeration Components by IMPA and OEM Code
- Danfoss Product Code Decoder — 003Z, 013G, 017B, 023U, 027L, 032F, 060G, 060H, 065B, 065Z, 068Z, 084H, 132F, 148B Series (Complete Reference)
- Danfoss Maneurop MTZ Reciprocating Compressors — Model Range, Voltage Codes and Replacement Guide
Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 003N3411?
- 003N3411 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 003N3411.
- What is the HS code for 003N3411?
- The customs tariff (HS) code for 003N3411 is 8481.80.
- Who manufactures 003N3411?
- 003N3411 is a Danfoss product in the HVAC & Refrigeration range.
- Is a datasheet available for 003N3411?
- Yes — the 003N3411 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 003N3411?
- The minimum order quantity is 1.
- Is 003N3411 available?
- Yes — 003N3411 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).