Danfoss RLV-S DN 20 straight lockshield radiator valve, manual shut-off (003L0126)
Danfoss

Danfoss RLV-S DN 20 straight lockshield radiator valve, manual shut-off

Part number003L0126Item numberCB-DANF-003L0126EAN / GTIN5702420035857HS code8481.80
MaterialBody brass, Nickel plated
HVAC & Refrigeration
Radiator Valves
MOQ:1

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Product Description

Danfoss RLV-S — manual lockshield radiator valve for two-pipe hydronic heating systems, OEM order code 003L0126. The RLV-S is a standard return-side lockshield (isolating) valve: it lets an individual radiator be shut off for maintenance or removal without draining the rest of the system. Adjustment for regulation and isolation is by a 6 mm hex socket in the valve body, normally covered by a screw-on cap. RLV-S DN 20, straight pattern. Body brass, finish Nickel plated. Connection to system Rp 3/4, connection to radiator R 3/4 (Internal thread), Kvs 2.2 m³/h. Max. working pressure 10 bar, test pressure 16 bar, flow temperature up to 120 °C. Genuine Danfoss part; technical data quoted verbatim from store.danfoss.com (code 003L0126). OEM P/N 003L0126, EAN 5702420035857. HS 8481.80.

Technical Specifications

Brand
Danfoss
Part number
003L0126
Type
RLV-S
Product group
Lockshield Valves
Description
Standard lockshield valve, nickel-plated
Function
Return-side lockshield / isolating valve
Design
Straight
Nominal size
DN 20
Connection to system
Rp 3/4
Connection to radiator
R 3/4
Connection types
Internal thread
Tailpiece type
Standard
Kvs value
2.2 m³/h
Flow temperature (max)
120 °C
Working pressure (max)
10 bar
Test pressure
16 bar
Finish
Nickel plated
REACH candidate-list substances
Lead (CAS no. 7439-92-1)
Net weight
0.306 Kilogram
Gross weight
0.322 Kilogram
EAN
5702420035857
HS code
8481.80 (taps, cocks, valves for pipes, tanks, vats or the like)

Standards & Compliance

Material
Body brass, Nickel plated
Pressure Rating
10 bar max working (test 16 bar)
Temperature Range
up to 120 °C (flow)
HS Code
8481.80

Compatibility & Fitment

Return-side lockshield / isolating valve — pair with a Danfoss RA-N / RA-FN thermostatic radiator valve (or equivalent) on the flow side. DN 20, straight pattern, connection to system Rp 3/4, to radiator R 3/4. Confirm design, nominal size and connections against the installation 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 003L0126 — 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 003L0126?
003L0126 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 003L0126.
What is the HS code for 003L0126?
The customs tariff (HS) code for 003L0126 is 8481.80.
Who manufactures 003L0126?
003L0126 is a Danfoss product in the HVAC & Refrigeration range.
Is a datasheet available for 003L0126?
Yes — the 003L0126 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 003L0126?
The minimum order quantity is 1.
Is 003L0126 available?
Yes — 003L0126 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).