10.50 45 BPS - Monarch - Oil Nozzle

10.50 45 BPS – Monarch Oil Nozzle

Monarch 10.50 45 BPS oil nozzles are engineered for oil‑fired burners requiring variable firing rates with precise flow control. Manufactured to Monarch’s exacting standards, these nozzles are designed for applications where burner output must be adjusted dynamically through pressure regulation rather than nozzle replacement.

Technical Specifications

• Nominal Flow Rate: 10.50 GPH
• Spray Angle: 45°
• Spray Pattern: BPS – By‑Pass System (Variable Orifice)
• Rated Pressure: 100 PSI
• Manufacturer: Monarch Mfg. Works

BPS Spray Pattern (By‑Pass System)

Monarch BPS (By‑Pass System) nozzles produce variable orifice flow rates by by‑passing fluid from the nozzle swirl chamber. The effective orifice flow is regulated by controlling the by‑pass line pressure, allowing accurate modulation of fuel delivery while maintaining proper spray characteristics. This design supports smooth output adjustment across a wide range of firing rates without changing the nozzle, making it especially well‑suited for commercial and industrial burners operating at moderate to high GPH levels.

Applications

• Oil‑fired burners with modulating or variable firing requirements
• Commercial and industrial heating equipment
• Boilers and process burners using by‑pass pressure control
• Service replacement where Monarch BPS nozzle design and 45° spray angle are specified