Danfoss LENO MSV-O DN 15 Low Flow Internal thread manual balancing valve
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Product Description
Danfoss LENO MSV-O — manual (static) balancing valve with fixed venturi orifice, OEM order code 003Z4020. Manual static balancing valve with a fixed venturi measuring orifice and presetting for constant-flow hydronic balancing. The venturi gives a defined differential-pressure signal at the two test plugs so flow can be measured directly; presetting fixes the design flow in the branch or riser. Drain function and shut-off are built in. Tapered ISO 7/1 external thread. (MSV-O DN 15 Low flow, Internal thread, fixed venturi orifice, manual balancing valve.) Nominal size DN 15, Kvs 0.63 m³/h, PN 20, Internal thread ISO 7/1 connection (Rp ½), DZR brass body, media temperature -20 °C to 120 °C. Net weight 0.726 Kilogram. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 003Z4020). OEM P/N 003Z4020, EAN 5702420096629. Used in commercial refrigeration, provision-room cooling and reefer plant rooms across HFC, HFO and CO2 (R744) refrigerants.
Technical Specifications
- Brand
- Danfoss
- Part number
- 003Z4020
- Type
- LENO MSV-O
- Product group
- Manual balancing
- Function
- manual (static) balancing valve with fixed venturi orifice
- Store description
- MSV-O DN 15 Low flow, Internal thread, fixed venturi orifice, manual balancing valve
- Nominal size
- DN 15 (Low Flow variant)
- Kvs value
- 0.63 m³/h
- Connection thread size
- Rp ½
- Connection type
- Internal thread ISO 7/1
- Pressure class
- PN 20
- Max. differential pressure
- 3 KPa
- Max. differential-pressure range
- 2.5 bar
- Setting scale
- Yes
- Test plugs
- With test plugs
- Shut-off function
- Yes
- Drain function
- No
- Shut-off leakage rate (ISO 5208)
- Rate A
- Valve body material
- DZR brass
- Media temperature
- -20 °C to 120 °C
- REACH candidate-list substances
- Lead (CAS no. 7439-92-1)
- Net weight
- 0.726 Kilogram
- Gross weight
- 0.79 Kilogram
- EAN
- 5702420096629
- HS code
- 8481.80 (taps, cocks, valves for pipes, tanks, vats or the like)
Standards & Compliance
- Material
- Valve body DZR brass
- Thread Standard
- ISO 7/1 (tapered)
- Pressure Rating
- PN 20
- Temperature Range
- -20 °C to 120 °C (media)
- Classification / Approval
- CE
- HS Code
- 8481.80
Compatibility & Fitment
Manual static balancing valve for constant-flow hydronic balancing of a DN 15 branch or riser. Confirm nominal size (DN 15), Kvs (0.63 m³/h) and connection (Internal thread ISO 7/1 Rp ½) against the circuit design; measure flow at the test plugs and preset the design flow. Read flow with a Danfoss PFM meter or the valve chart.
Product Documentation
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Technical guides
- Balancing Valve Finder — Danfoss AB-QM, ASV-PV / ASV-M, USV-I / USV-M, MSV-BD / MSV-F2, IMI TA STAD / STAF, Frese by DN and Type
- 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)
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 003Z4020?
- 003Z4020 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 003Z4020.
- What is the HS code for 003Z4020?
- The customs tariff (HS) code for 003Z4020 is 8481.80.
- Who manufactures 003Z4020?
- 003Z4020 is a Danfoss product in the HVAC & Refrigeration range.
- Is a datasheet available for 003Z4020?
- Yes — the 003Z4020 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 003Z4020?
- The minimum order quantity is 1.
- Is 003Z4020 available?
- Yes — 003Z4020 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).