The Monarch HO Series Oil Burner Nozzles are specifically developed for applications using higher viscosity oils, where standard burner nozzles may produce unstable spray patterns, narrow spray angles, or poor atomization.

These nozzles are specially tested and calibrated for operation with oils having viscosities up to 13 cSt (70 SSU) at elevated operating pressures. The HO Series ensures consistent spray formation, improved fuel atomization, and reliable combustion performance under demanding industrial conditions.

Available in capacities from 1.00 to 100.00 GPH, the HO Series is suitable for a wide range of industrial burner applications. Each nozzle is individually tested to maintain accurate spray angle, flow rate, and combustion performance.

The nozzles are manufactured from high-quality brass construction, with stainless steel versions available upon request for specialized applications.

Key Features

• Specially designed for high-viscosity fuel oils

• Reliable operation at elevated fuel pressures

• Superior spray quality and atomization performance

• Individually tested for flow accuracy and spray pattern consistency

• Available in capacities from 1.00 to 100.00 GPH

• Suitable for operating pressures up to 30 bar (430 PSI)

• Multiple spray angle options available

• Heavy-duty industrial construction

• Compatible with industrial oil burner systems

Applications

• Industrial oil burners

• Heavy oil combustion systems

• Oil-fired boilers

• Industrial furnaces

• Process heating equipment

• Hot air generators

• Marine and industrial heating systems

Why Choose This Nozzle

• Designed specifically for heavy oil applications

• Maintains spray quality at high operating pressures

• Provides stable flame performance and efficient combustion

• Wide range of capacities and spray angles available

• Trusted Monarch nozzle technology

• Ideal for demanding industrial burner environments

Technical Description

The Monarch HO Series uses a precision-engineered atomizing system designed for heavy oil combustion. Unlike standard light-oil nozzles, the HO Series is tested under actual heavy-oil operating conditions to ensure proper spray formation and combustion stability.

The nozzles are available for operation at both 200 PSI (14 bar) and 430 PSI (30 bar), ensuring consistent atomization even with higher viscosity fuels. Special testing eliminates spray streaking, flutter, and void formation commonly associated with heavy oil applications.

The spray angle marked on each nozzle represents the nominal operating angle under heavy-oil conditions, ensuring accurate burner setup and predictable combustion performance.

Technical Specifications