35-381-2 Fireye Mounting Flange

Overview

The Fireye 35-381-2 is a dedicated O2 probe mounting flange kit designed for the secure installation of oxygen probes within industrial and commercial combustion systems. It is specifically engineered to facilitate the integration of Fireye Nexus and efficiency control systems, providing a stable mechanical interface between the probe and the flue or stack. The kit serves as a critical component for ensuring accurate oxygen concentration readings by maintaining the proper positioning of the probe relative to gas flow.

Features

• Comprehensive kit includes the mounting flange and six stainless steel M6 x 20mm socket cap screws for probe or cover attachment.
• Constructed from durable mild steel to withstand the demanding environments of industrial flue systems.
• Engineered for compatibility with specific Fireye oxygen probe series used in burner management.
• Designed to support vertical mounting to prevent particulate build-up within the sample tube.
• Allows for the separate attachment of the 129-189 O2 flange cover if required by the application.

Specifications

• Part Number: 35-381-2
• Material: Mild Steel
• Included Hardware: 6 x M6 x 20mm stainless steel screws
• Dimensions: Approximately 4.00 x 4.00 x 1.50 inches
• Weight: Approximately 2 lbs
• Compatible Accessories: O2 flange cover (p/n 129-189)
• Mounting Type: Weld-on or bolt-on depending on stack configuration

Applications

The 35-381-2 mounting flange is used exclusively with Fireye NXCESO2 and FXCESO2 oxygen probes. These probes are typically integrated with Fireye Nexus PPC4000 and NXF4000 burner controllers to provide continuous oxygen trim and efficiency monitoring. It is commonly installed on double-walled flues or stacks in boiler rooms and industrial heating plants, where precise probe alignment is necessary to ensure flue gases pass correctly through the sensing equipment.