
Danfoss AVDO Self-Acting Constant-Flow (Automatic Bypass) Valve DN 25, Straight, Threaded, with fittings
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Product Description
Danfoss AVDO (balancing valves), OEM order code 003L6128. Self-acting constant-flow / automatic-bypass valve that holds a constant differential pressure across a bypass, protecting circulation pumps and maintaining minimum flow in heating systems without auxiliary power. Manufacturer description: Self-acting constant flow valve, with fittings. connection/size DN 25, max. working pressure 10 bar; max. differential pressure 0.5 bar, media/setting temperature up to 120 °C. EAN 5702420018102. HS 8481.80. Specifications quoted verbatim from store.danfoss.com (code 003L6128).
Technical Specifications
- Brand
- Danfoss Part number: 003L6128 Code number: 003L6128 Type: AVDO Product group: Automatic Bypass Control Description: Self-acting constant flow valve, with fittings Gross weight: 1.342 Kilogram Net weight: 1.342 Kilogram Connection size in: 28 mm Connection size out: 28 mm Connection types: Threaded Connections: 1" Design: Straight Differential pressure range [bar] [Max]: 0.5 bar Flow temperature [°C] [Max]: 120 °C Inlet connection type: External thread Outlet connection type: External thread Setting [bar] [Max]: 0.5 bar Setting [bar] [Min]: 0.05 bar Valve size: DN 25 Working pressure [bar] [Max]: 10 bar EAN: 5702420018102 HS code: 8481.80 (taps, cocks, valves for pipes)
Standards & Compliance
- Size / Series
- DN 25
- Pressure Rating
- max. working pressure 10 bar; max. differential pressure 0.5 bar
- Temperature Range
- up to 120 °C
- HS Code
- 8481.80
Compatibility & Fitment
Genuine Danfoss part, order code 003L6128 (Automatic Bypass Control). Confirm the code, size (DN 25) and matching valve/actuator family against your Danfoss datasheet 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: 2026-08-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 003L6128?
- 003L6128 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 003L6128.
- What is the HS code for 003L6128?
- The customs tariff (HS) code for 003L6128 is 8481.80.
- Who manufactures 003L6128?
- 003L6128 is a Danfoss product in the HVAC & Refrigeration range.
- Is a datasheet available for 003L6128?
- Yes — the 003L6128 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 003L6128?
- The minimum order quantity is 1.
- Is 003L6128 available?
- Yes — 003L6128 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).
