Fuel oil pressure gauges monitor the pressure of fuel within the fuel system, ensuring optimal engine performance. They help detect leaks, blockages, or pump failures by providing real-time pressure readings. These gauges are critical for maintaining fuel efficiency and preventing engine damage.

Size: Typically 1.5" to 4" dial diameter for gauges; fuel system components vary by application.

Grade: Compatible with various fuel oil grades (e.g., No. 1, No. 2, No. 4, No. 5, No. 6).

Viscosity Range: Suitable for fuels with viscosities from 1.3 cSt (No. 1) to 700 cSt (No. 6) at 40°C.

Buoyancy: Not typically applicable; pressure measurement is mechanical or electronic.

Material: Gauge cases (brass, stainless steel, aluminum); internals (copper alloy, stainless steel); seals (Viton, Buna-N).

Pressure Range: Common ranges from 0-100 psi up to 0-10,000 psi, depending on system requirements.

Connection Type: NPT, BSP, SAE, or flange fittings (1/8" to 1/2" typical).

Temperature Range: -40°F to 250°F (-40°C to 121°C) for standard gauges; higher for specialized models.

Accuracy: Typically ±1% to ±3% of full scale for mechanical gauges.

Compatibility: Designed for use with diesel, heavy fuel oil (HFO), and other petroleum-based fuels.

Fuel Oil Pressure Gauges and Fuel Systems may comply with maritime standards such as ISO 15848, ASTM F1199, or specific classification society requirements like ABS, DNV, or Lloyd's Register, depending on the manufacturer and product specifications.