The Monarch E-180-H Variable Flow Nozzle is specifically designed for industrial oil burners requiring adjustable firing rates without sacrificing atomization quality. Unlike conventional pressure nozzles, the E-180-H varies fuel flow by bleeding oil from the nozzle swirl chamber through a controlled bypass line while maintaining constant line pressure.

This unique design allows the burner to operate over a wide firing range with excellent combustion characteristics. Depending on operating conditions, the nozzle can achieve turndown ratios of approximately 3:1 to 4:1, making it ideal for systems requiring flexible heat output.

The nozzle is suitable for operation with 100 SSU viscosity fuel oil and can also be used with No. 2 fuel oil. For heavy fuel oil applications, proper preheating is recommended to achieve the required operating viscosity and optimum atomization performance.

Manufactured from durable cold-rolled steel with hardened and precision-lapped tip and disc assemblies, the E-180-H provides reliable long-term performance in demanding industrial environments.

Key Features

Variable flow industrial oil burner nozzle

Bypass-controlled firing rate adjustment

Constant nozzle pressure operation

Excellent atomization across wide firing ranges

Turndown ratios of approximately 3:1 to 4:1

Suitable for light and heavy fuel oils

Available in multiple spray angles

Precision hardened tip and disc assemblies

Heavy-duty industrial construction

Applications

Industrial oil burners

Industrial boilers

Industrial furnaces

Thermal oil heaters

Process heating systems

Power generation facilities

Heavy fuel oil combustion systems

Commercial heating plants

Why Choose This Nozzle

Provides flexible burner output control

Maintains excellent atomization throughout turndown range

Improves combustion efficiency and flame stability

Suitable for demanding industrial applications

Durable construction for long service life

Trusted Monarch industrial burner technology

Technical Description

The Monarch E-180-H nozzle operates using a variable flow principle in which fuel is bypassed from the nozzle swirl chamber while maintaining constant supply pressure. Capacity is controlled by adjusting bypass line pressure, allowing smooth modulation between maximum and minimum firing rates.

The nozzle is typically rated using 100 SSU viscosity oil at 300 PSIG with the bypass line closed. Available spray angles include 40°, 50°, 60°, and 80°, with spray angles increasing slightly when the bypass line is fully opened.

The nozzle's hardened and individually lapped tip and disc assemblies ensure precise atomization and long-term reliability. This design provides superior combustion performance while allowing significant burner turndown capability.

Technical Specifications