Product Details

The Fireye P5348-2 is a mechanical adjustable gas pressure switch built for fuel gas supervision on Fireye burner management systems. This adjustable gas pressure switch monitors incoming gas line pressure and provides dry contact switching output for critical safety interlock. As a reliable fuel safety interlock switch, it uses a precision diaphragm sensing assembly with adjustable trip point and fixed hysteresis, protecting the burner against dangerously low or high gas pressure. This Fireye burner pressure control works seamlessly with classic Fireye M-Series, MicroM and BurnerLogix flame safeguard controls, cutting off the ignition sequence or locking out firing when gas pressure falls outside the safe window. It is stocked as genuine replacement spare part for legacy and modern industrial gas burner assemblies.

Basic Parameters

Brand: Fireye

Model: P5348-2

Type: Mechanical gas pressure safety switch

Sensing element: Reinforced metal diaphragm

Contact type: SPDT dry contact

Contact rating: 5 A @ 120 / 240 VAC

Pressure range: Adjustable for natural gas supply supervision

Connection: Threaded gas pressure tap port

Compatible fuel: Natural gas, non-corrosive fuel gas

Compatible systems: Fireye M-Series, MicroM, BurnerLogix burner controls

Mounting: Surface mount

Adjustment: Internal calibration screw for set point tuning

Product type: Original Fireye combustion safety pressure switch

Supported Functions

This pressure switch continuously samples fuel gas supply pressure. If gas pressure drops below the minimum safe threshold or rises above the high-pressure limit, the relay contact changes state and triggers burner lockout, preventing unstable combustion, flashback or unignited gas accumulation. It acts as a mandatory proof switch during the pre-purge and ignition trial and maintains supervision throughout the entire firing cycle.

Core Functions

The mechanical diaphragm design requires no external power for pressure detection, delivering dependable service for long-term continuous operation. The calibrated setpoint screw allows technicians to match the trip threshold to site gas supply requirements. Rugged internal construction resists gas pulsation and pipeline vibration, and it serves as direct drop‑in substitution for existing P5348-2 pressure switches.

Hardware Specifications & Environmental Features

Mounting: Surface mounting

Operating temperature: -20 °C to +70 °C

Storage temperature: -40 °C to +75 °C

Relative humidity: 5% – 90%, non‑condensing

Housing: Heavy-duty corrosion-resistant enclosure

Condition: Original new Fireye gas pressure switch

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm gas pressure set point, thread connection and interlock wiring before ordering; this switch is designed for clean fuel gas only and must not be used for steam or corrosive process media.

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