General Information
Spray Patterns
Spray Angles & Capacities
Critical Points
Technical Data

Monarch Micro Tolerance Development for Domestic Oil Burners and Heating Units

I. Concept

This nozzle was developed by MONARCH to meet the needs of the European market. In a number of countries, new laws have been issued to protect the environment, forcing the manufacturers to develop better performing, lower polluting burners. It is widely recognized that the nozzle is a crucial element in achieving this. By controling the atomization and oil flow rate, essential factors for clean and efficient combustion, these goals are achieved.

Nozzle Dimensions

The dimensions and characteristics of the threaded parts of the nozzles exceed CEN regulations and tolerances.

The tolerances for the dimensions above hold for all nozzles up to and including 3.50 USGPH. They can be slightly different for higher capacities.

The body and swirl disc are made of a high chrome grade stainless steel (416 SS), specifically selected for its high heat resistance.

The locknut is nickel plated to avoid risk of obstruction by metal particles.

The nozzle body and orifice are a one piece construction. Although expensive, this guarantees against leakage or problems related to heat expansion.

II. Operating

Each nozzle is individually spray tested by MONARCH for angle, quality and balance. All tests are made at 100psi/ 7 bar.

The nominal flow stamped on the nozzle is rated at 100psi= 6.895 bar. Flow tolerances have been reduced in conformity with the European norms CEN. The nozzles have a flow tolerance of +/- 4% for all flows up to and including 3.50 USGPH. Tolerance can differ slightly for higher capacities.

III Technology

MONARCH utilizes state-of-the-art, CNC controlled test equipment with digital flow measuring devices, insuring precise performance of every nozzle.

A new generation of CNC manufacturing equipment provides our customers with the necessary uniformity of every part. This results in accurate and consistent flow and spray angles. In addition, micro-finishing and process control monitoring, applied exclusively by MONARCH, assure smooth and consistent oil flow and spray.

We strongly advise you not to disassemble the nozzle. The high performance characteristics of the nozzle will not be reclaimed!