Danfoss AVTB Self-Acting Temperature Controller DN 25 30–65 °C Rp 1
Danfoss

Danfoss AVTB Self-Acting Temperature Controller DN 25 30–65 °C Rp 1

Part number003N8153Item numberDANFOSS-003N8153EAN / GTIN5715255156147HS code8481.80
MaterialBrass CuZn40Pb2 W. no 2.0402Approval standard ETA VA 1.54/18952
HVAC & Refrigeration
Water Regulating Valves
MOQ:1

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Product Description

Danfoss AVTB self-acting thermostatic temperature controller, OEM P/N 003N8153. A proportional, self-acting (no external power) valve that throttles the flow to hold a set medium temperature: the liquid-charged sensor closes the valve on rising temperature. Valve size DN 25. Kvs 5.5 m³/h. Temperature setting range 30 °C – 65 °C. Connection Rp 1 (ISO 7/1). PN 16. Body Brass CuZn40Pb2 W. no 2.0402. OEM designation "AVTB PN16 25/5,5 30-65 2,3m int Rp fl/re". OEM P/N 003N8153. EAN 5715255156147. Technical data quoted verbatim from store.danfoss.com (code 003N8153).

Technical Specifications

Brand
Danfoss
Part number
003N8153
Model
AVTB
Category
HVAC & Refrigeration — Water Regulating Valves
Function
Self-acting thermostatic temperature controller
Valve size
DN 25
Valve diameter
25 mm
Temperature setting range
30 °C – 65 °C
Kvs value
5.5 m³/h
Connection size
Rp 1
Connection type
Internal thread
Connection standard
ISO 7/1
Temperature sensor length
150 mm
Temperature sensor diameter
9.5 mm
Capillary tube length
2.3 m
Max differential pressure
10 bar
Flow characteristic
Linear
Cone/seat sealing material
NBR / Brass W. No 2.0402
Valve body material
Brass CuZn40Pb2 W. no 2.0402
Valve seat material
Cr Ni steel W.no 1.4301
Temperature sensor material
Copper mat. No 2.0090
Approval standard
ETA VA 1.54/18952
Media
District heating/cooling circulation water
Medium temperature range
2 °C to 130 °C
Body material
Brass CuZn40Pb2 W. no 2.0402
Approvals
Approval standard ETA VA 1.54/18952
REACH Candidate List substance
Lead (CAS no. 7439-92-1)
Volume
4.082 L
Net weight
1.596 kg
Gross weight
1.68 kg
OEM description
AVTB PN16 25/5,5 30-65 2,3m int Rp fl/re
EAN
5715255156147
HS code
8481.80

Standards & Compliance

Size / Series
AVTB
Material
Brass CuZn40Pb2 W. no 2.0402
Thread Standard
ISO 7/1
Pressure Rating
PN 16; max differential pressure 10 bar
Temperature Range
2 °C to 130 °C (media); setting range 30 °C–65 °C
Classification / Approval
Approval standard ETA VA 1.54/18952
HS Code
8481.80

Compatibility & Fitment

Fit in the flow line with the sensor in the medium to be controlled; the AVTB closes on rising temperature. Match valve size (DN 25), Kvs (5.5 m³/h) and temperature setting range to the application before ordering. Self-acting — no external power or actuator required. Confirm code and range before ordering.

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 003N8153 — OEM Product Page

Catalogue entry last verified: 2026-08-24. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.

Frequently asked questions

Where can I buy 003N8153?
003N8153 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 003N8153.
What is the HS code for 003N8153?
The customs tariff (HS) code for 003N8153 is 8481.80.
Who manufactures 003N8153?
003N8153 is a Danfoss product in the HVAC & Refrigeration range.
Is a datasheet available for 003N8153?
Yes — the 003N8153 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 003N8153?
The minimum order quantity is 1.
Is 003N8153 available?
Yes — 003N8153 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).