The Grande 12 Aviation Double Wall Tank is purpose-built for secure, compliant aboveground bulk storage and dispensing of aviation fuels such as Avgas and Jet A-1. Engineered for use at airports, heliports, remote airstrips, and fueling bases, this tank combines aviation-specific safety features, robust construction, and a flexible modular ISO footprint.

Features and Benefits:

• Capacity: Safe fill level of 11,240 litres (2,971 US gallons); total capacity 11,839 litres (3,127 US gallons)
• Aviation-Grade Construction: Double-walled “tank-in-tank” system with a 6mm thick GR 304 stainless steel inner tank and 6mm mild steel outer tank for total secondary containment—no need for external bunds
• Stainless Steel Lines: All components in contact with fuel—including pump lines, piping, and fittings—are GR 304 stainless steel to eliminate any rust or contamination risk
• Purpose-Built for Avgas and Jet A-1: Designed and certified for the clean, safe storage of aviation fuel, meeting industry requirements for fuel purity
• Floating Suction: Reduces risk of sediment contamination during fuel draw-off (Grande Aviation only)
• Overfill Protection: Advanced overfill alarm and prevention system for maximum safety (Grande Aviation only)
• High Level Alarm: Intrinsically safe (Ex-i) alarm warns operators before tank fills to maximum design limit
• Emergency and Pressure Venting: Includes free vent pipe, emergency venting system, and optional pressure vacuum vent
• Sloping Floor & Sump: 50:1 sloped floor guides any water or particulates to a collection sump for easy sampling and removal—plus a dedicated sampling cabinet for routine checks
• Pump Bay: Secure, lockable and bunded compartment for fueling pumps and all accessories—weatherproof and spacious
• Paint Finish: Extra-thick, industrial-grade white coating (custom colors available on request) for maximum weather and corrosion resistance
• ISO Container Footprint: Constructed to standard 8' (2,991 x 2,438 mm) container specs for global transport, simple stacking, and rapid site installation

Compliance and Safety:

• Meets or exceeds all UL 142, ULC-S601-14, and relevant FAA and aviation fuel storage requirements for double-walled tanks
• Total integral secondary containment removes the need for concrete bunds and delivers built-in leak detection/monitoring capability
• Stainless steel contact points prevent fuel contamination and meet strict aviation regulations
• Supplied with all mandatory hazardous material decals and legal signage
• Every unit air pressure tested for leak-tight integrity prior to delivery

Suitable For:

• Commercial airfields, airports, heliports, private landing strips, remote/isolated communities, and any operation needing compliant, high-purity Avgas or Jet A-1 storage

Specifications:

Safe Fill Level: 11,240 litres (2,971 US gallons)
Gross Capacity: 11,839 litres (3,127 US gallons)
Dimensions (L x W x H): 2,991 x 2,438 x 2,896 mm (118 x 96 x 114 in)
Bare Weight: 4,825 kg (10,640 lbs)
Tank Walls: 6mm thick GR 304 stainless steel inner & mild steel outer
Pump Bay: Yes, lockable and bunded
Baffling: Internally baffled for in-transit safety
Maintenance Access: Dual manways, sloped floor to sump, sampling cabinet
Certifications: UL 142, ULC-S601-14, aviation fuel requirements
Fittings: Stainless steel fuel lines, floating suction, high-level alarms, overfill protection, venting, emergency vent, fluid level dipstick
Compliance: Delivered with signage/decals for hazardous material/aviation use

With premium double-wall containment, aviation-approved stainless steel construction, and a modular ISO design, the Grande 12 Aviation Double Wall Tank by Unity Fuel Solutions is your safest, most compliant, and reliable answer for clean, secure, and regulation-ready aviation fuel storage—wherever your operation is based.