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Datasheet generated 2026-10-07
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Danfoss AVDO Self-Acting Constant-Flow (Automatic Bypass) Valve DN 25, Straight, Threaded (003L6028)

Danfoss · HVAC & Refrigeration · Balancing Valves · Denmark · danfoss.com
Part Number
003L6028  ·  HS 8481.80
Danfoss AVDO Self-Acting Constant-Flow (Automatic Bypass) Valve DN 25, Straight, Threaded (003L6028)

Danfoss AVDO (balancing valves), OEM order code 003L6028. 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. connection/size DN 25, max. working pressure 10 bar; max. differential pressure 0.5 bar, media/setting temperature up to 120 °C. EAN 5702420018065. HS 8481.80. Specifications quoted verbatim from store.danfoss.com (code 003L6028).

Technical Specifications

BrandDanfoss Part number: 003L6028 Code number: 003L6028 Type: AVDO Product group: Automatic Bypass Control Description: Self-acting constant flow valve Gross weight: 1.208 Kilogram Net weight: 1.16 Kilogram Connection size in: Rp 1 Connection size out: R 1 Connection types: Threaded Connections: 1" Design: Straight Differential pressure range [bar] [Max]: 0.5 bar Flow temperature [°C] [Max]: 120 °C Inlet connection type: Internal 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: 5702420018065 HS code: 8481.80 (taps, cocks, valves for pipes)

Properties

Pressure ratingmax. working pressure 10 bar; max. differential pressure 0.5 bar
Temperature rangeup to 120 °C
Standard sizeDN 25
MOQ1

Compatibility

Genuine Danfoss part, order code 003L6028 (Automatic Bypass Control). Confirm the code, size (DN 25) and matching valve/actuator family against your Danfoss datasheet before ordering.

Attached Documents