500 Gallon Underground Propane Tank
500 Gallon Underground Propane Tank from Long Beach Steel Corp is a smart and attractive propane storage solution for homeowners, businesses, farms, and commercial properties that want reliable fuel storage without sacrificing the beauty of their landscape. Designed for below-ground installation, this ASME-certified propane tank provides dependable fuel for home heating, water heaters, fireplaces, standby generators, outdoor kitchens, and light commercial applications while remaining almost completely hidden from view.
Manufactured from premium carbon steel and protected with advanced underground corrosion-resistant coatings, our 500 gallon underground propane tank is built to provide decades of dependable service. Every tank undergoes strict quality inspections and pressure testing before delivery, giving you confidence in both its safety and long-term performance.
If your propane needs increase over time, Long Beach Steel Corp also offers the 1000 Gallon Underground Propane Tank, 500 Gallon ASME Propane Tank, 1000 Gallon ASME Propane Tank, 2000 Gallon ASME Propane Tank, and a complete range of Commercial LPG Tanks.
500 Gallon Underground Propane Tank | Underground Propane Tank for Sale | Residential Underground Propane Tank
If you’re searching for an Underground Propane Tank for Sale or a dependable Residential Underground Propane Tank, a 500 gallon underground tank offers one of the best combinations of storage capacity, affordability, and property aesthetics.
Installed below the surface, this tank keeps your yard looking clean and uncluttered while providing approximately 400 gallons of usable propane when filled to the recommended 80% level. It is an excellent choice for homeowners who rely on propane for multiple household appliances and want fewer fuel deliveries throughout the year.
Typical applications include:
- Whole-home heating
- Water heating
- Gas fireplaces
- Backup generators
- Pool heaters
- Outdoor kitchens
- Restaurants
- Farms
- Churches
- Small commercial buildings
Why Choose a 500 Gallon Underground Propane Tank?
A 500 gallon underground propane tank provides substantial propane storage while remaining virtually invisible after installation. It is especially popular among homeowners who want to preserve landscaping or comply with neighborhood appearance requirements.
Key benefits include:
- Hidden underground installation
- Preserves landscaping and curb appeal
- Large propane storage capacity
- ASME-certified construction
- Heavy-duty steel pressure vessel
- Factory pressure tested
- Advanced corrosion protection
- Low maintenance requirements
- Long service life
- Suitable for residential and light commercial applications
Easy Installation and Long-Term Value 
500 Gallon Underground Propane Tank Specifications
| Specification | Details |
|---|---|
| Water Capacity | 500 Gallons |
| Usable Propane Capacity (80%) | Approximately 400 Gallons |
| Tank Type | Underground ASME Pressure Vessel |
| Installation | Underground |
| Product Stored | Liquefied Petroleum Gas (LPG / Propane) |
| Construction Material | ASME SA-516 Grade 70 Carbon Steel |
| Design Standard | ASME Section VIII Division 1 |
| Maximum Allowable Working Pressure | 250 PSI |
| Hydrostatic Test Pressure | 375 PSI |
| Approximate Diameter | 37 Inches |
| Approximate Length | 9 ft 11 in |
| Exterior Finish | Underground Epoxy Protective Coating |
| Corrosion Protection | Protective Coating with Sacrificial Anode System |
| Pressure Relief Valve | ASME Certified |
| Standard Fittings | Fill Valve, Vapor Valve, Pressure Relief Valve, Liquid Withdrawal Valve, Float Gauge |
| Access Dome | Composite High-Strength Dome |
| Estimated Service Life | 30+ Years with Proper Maintenance |
| Typical Applications | Residential, Agricultural & Light Commercial |
Specifications may vary depending on manufacturer and optional equipment.
Engineered for Long-Term Underground Protection
Unlike standard above-ground tanks, underground propane tanks require additional protection against soil moisture and corrosion. Our 500 gallon underground propane tanks feature a durable epoxy coating combined with a cathodic protection system that helps maximize service life.
This advanced protection system minimizes corrosion while maintaining the structural integrity of the tank for many years of dependable operation.
Above Ground vs Underground Propane Tanks
Many customers ask whether an underground propane tank is worth the additional installation cost. The answer often depends on your property’s appearance, available space, and long-term priorities.
Underground Tank Advantages
- Nearly invisible after installation
- Maintains attractive landscaping
- Better curb appeal
- More usable yard space
- Protected from weather exposure
- Popular for upscale residential properties
Above Ground Tank Advantages
- Lower installation costs
- Easier inspection and maintenance
- No excavation required
- Faster installation
- Lower upfront investment
If maintaining your property’s appearance is important, a buried propane tank is an excellent investment.
Safety and Industry Standards
Every propane tank supplied by Long Beach Steel Corp is manufactured to recognized industry standards for safe propane storage and long-term reliability.
Helpful industry resources include:
- National Fire Protection Association (NFPA 58): https://www.nfpa.org
- American Society of Mechanical Engineers (ASME): https://www.asme.org
- Propane Education & Research Council (PERC): https://propane.com
- Occupational Safety and Health Administration (OSHA): https://www.osha.gov
Following proper installation guidelines and performing regular inspections will help ensure many years of safe operation.












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