Danfoss Oil Nozzles HR, Oil Nozzles SR Data sheet

Data sheet

Oil Nozzles Types HR and SR

Application Oil nozzles types HR and SR are designed for

domestic high-pressure oil burners where
roundshaped nozzle head are requested. They
are available with 3 different spray angles and
sizes from 0.3 to 1.00 USgal/h.
HR and SR nozzles are equipped with sintered
bronze filter and have the same performances
as the corresponding sizes of OD-nozzles.

Identification The EN nozzles 1.46 to 3.72 are marked with

these informations.
Other nozzles are without EN marking.

Stamped on the flats:

2.37 EN specified capacity (kg/h)
EN 80° II Spray angle & Angle index (according to EN 293/EN 299)
EN specification point 1000 kPa (10 bar), 3.4 cSt., 840 kg/m³

Capacity tolerance: ± 4%

Serial number for internal use

0.60 Reference capacity (USgal/h)
60° SR Spray angle & pattern (HR = Hollow, SR = Solid)
Reference specification point 700 kPa (7 bar), 3.4 cSt., 820 kg/m³

Features:

• Light and heavy oil

• EN nozzles from 1.46 to 3.72 kg/h

• Standard nozzles 0.30 and 0.35 USgal/h

• 100% test of capacity and performance in
accordance with EN

Technical data

Reference capacity

USgal/h

0.30 SR* 1.15

0.35 HR* SR* 1.35

0.40 SR SR HR SR 1.46

0.45 SR HR SR HR SR 1.66

0.50 SR HR SR HR SR 1.87

0.55 SR HR SR HR SR 2.11

0.60 SR HR SR SR 2.37

0.65 SR HR SR SR 2.67

0.75 SR HR SR HR SR 2.94

0.85 SR SR 3.31

1.00 SR SR HR 3.72

* not EN nozzles

Spray angle / patterns Specified capacity

45° 60° 80°

kg/h

© Danfoss | 2019.09

BD.CA.X2.02 | 1

1 2 3 4 5

Data sheet Oil Nozzles Types HR and SR

Filters

Recommended tightening torque: 15 to 20 Nm (1.5 to 2.0 kpm).
Max. tightening torque: 25 Nm (2.5 kpm).

Design 1. Filter

2. O-ring holder

3. Nozzle housing

4. Nozzle Cone

5. Orifice disc

Spray angles Spray patterns

Capacity 0.30 to 0.35 USgal/h:

30 μm sintered bronze

Capacity 0.40 to 1.00 USgal/h:

45 μm sintered bronze

HR (Hollow) SR (Solid)

Dimensions

Nozzle holder

Additional documentation on burner components is available on http://heating.danfoss.com/ or https://store.danfoss.com/

2 | © Danfoss | DHS-SDBT/DK | 2019.09

BD.CA.X2.02