
Danfoss APT DN 15 5-25 kPa Internal thread differential pressure controller
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Product Description
Danfoss APT — self-acting differential-pressure controller, OEM order code 003Z5701. Fourth-generation self-acting (automatic) differential-pressure controller for automatic hydronic balancing. Installed in the return of a riser and connected by an impulse tube to an ASV-BD/ASV-M partner valve on the supply, it holds a constant differential pressure across the riser regardless of load changes elsewhere in the system. Constant differential pressure keeps two-way control-valve authority high and prevents flow noise at part load. Integral shut-off; adjustable setting range. APT is the self-acting differential-pressure controller supplied without insulation. Nominal size DN 15, Kvs 1.6 m³/h, PN 16, Internal thread connection, Brass body, media temperature 0 °C to 120 °C. Differential-pressure setting range 5-25 kPa (factory setting 10 KPa), max. differential pressure over the valve 250 KPa, impulse tube 1.5 m. Net weight 0.681 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 003Z5701). OEM P/N 003Z5701, EAN 5710104094618. Used in commercial refrigeration, provision-room cooling and reefer plant rooms across HFC, HFO and CO2 (R744) refrigerants.
Technical Specifications
- Brand
- Danfoss
- Part number
- 003Z5701
- Type
- APT
- Product group
- Automatic balancing
- Function
- self-acting differential-pressure controller
- Store description
- APT DN 15, 5-25 kPa, Internal thread, without insulation, automatic balancing valve
- Nominal size
- DN 15
- Kvs value
- 1.6 m³/h
- Connection type
- Internal thread
- Pressure class
- PN 16
- Differential-pressure setting range
- 5-25 kPa
- Factory setting
- 10 KPa
- Max. differential pressure over the valve
- 250 KPa
- Impulse tube length
- 1.5 m
- Insulation
- Without insulation
- Mounting position
- Return pipe
- Shut-off function
- Yes
- Valve body material
- Brass
- Media temperature
- 0 °C to 120 °C
- Net weight
- 0.681 Kilogram
- Gross weight
- 0.895 Kilogram
- EAN
- 5710104094618
- HS code
- 8481.80 (taps, cocks, valves for pipes, tanks, vats or the like)
Standards & Compliance
- Material
- Valve body Brass
- Pressure Rating
- PN 16
- Temperature Range
- 0 °C to 120 °C (media)
- Classification / Approval
- CE
- HS Code
- 8481.80
Compatibility & Fitment
Self-acting differential-pressure controller for the return of a DN 15 riser. Pair with a Danfoss ASV-BD/ASV-M partner valve on the supply and connect the supplied impulse tube. Select the setting range (5-25 kPa) to bracket the required riser differential pressure, and confirm connection type (Internal thread) and nominal size (DN 15) match the pipework.
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: 2026-08-29. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 003Z5701?
- 003Z5701 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 003Z5701.
- What is the HS code for 003Z5701?
- The customs tariff (HS) code for 003Z5701 is 8481.80.
- Who manufactures 003Z5701?
- 003Z5701 is a Danfoss product in the HVAC & Refrigeration range.
- Is a datasheet available for 003Z5701?
- Yes — the 003Z5701 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 003Z5701?
- The minimum order quantity is 1.
- Is 003Z5701 available?
- Yes — 003Z5701 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).
