Fuel tank vent valves in marine fuel systems allow air to enter and exit the tank, preventing vacuum or overpressure. They ensure safe fuel flow and prevent vapor buildup, reducing explosion risks. These valves often include flame arrestors to enhance safety in marine environments.

Size: Typically ranges from 1/2" to 2" NPT or flanged connections.

Grade: Compliant with ISO 15540, ASTM F1199, and marine classification society standards (ABS, DNV, LR, etc.).

Viscosity: Suitable for fuels with viscosities up to 700 cSt at 50°C.

Buoyancy: Float-operated designs ensure automatic sealing at specific fuel levels.

Material: Constructed from corrosion-resistant materials like stainless steel (316L), brass, or aluminum with PTFE seals.

Pressure Rating: Typically 3-10 bar, depending on application.

Temperature Range: -40°C to +120°C for standard models.

Flow Rate: Varies by size, typically 10-100 CFM for venting applications.

Certifications: MARPOL Annex VI compliant for emissions control.

Installation: Vertical or horizontal mounting options available.

Yes, Fuel Tank Vent Valves and Marine Fuel Systems typically comply with maritime standards such as ISO 15540, USCG regulations, and IMO SOLAS requirements.