Buy Used 30000 Gallon Skid Tank Online ASME Storage Tank On Skids
Introduction to the 30,000 Gallon Skid Tank
A 30,000-gallon skid tank, specifically an ASME (American Society of Mechanical Engineers) storage tank mounted on skids, is a robust, portable solution designed for storing large volumes of liquids or gases under pressure, such as propane (LPG), natural gas liquids (NGL), butane, or anhydrous ammonia (NH3).
The “skid” refers to a steel framework or base that supports the tank, allowing it to be transported and installed with relative ease compared to permanent, fixed storage vessels. Available for purchase online from specialized suppliers, these tanks are engineered to meet stringent ASME Boiler and Pressure Vessel Code standards, ensuring safety, durability, and compliance for industrial, agricultural, and commercial applications.
The 30,000-gallon capacity—equivalent to approximately 113,562 liters—makes this tank a mid-to-large-scale storage option, ideal for operations requiring significant volumes without the footprint of even larger vessels (e.g., 60,000 or 120,000 gallons). Its portability, combined with ASME certification, positions it as a versatile asset in industries like oil and gas, agriculture, and chemical processing.Buy Used 30000 Gallon Skid Tank Online ASME Storage Tank On Skids
Design and Construction
Structural Overview
The 30,000-gallon skid tank is typically a horizontal, cylindrical pressure vessel constructed from high-strength carbon steel or, in some cases, alloyed steel for enhanced corrosion resistance. Its dimensions vary by manufacturer, but a common configuration might be:
•Diameter: 9-11 feet (2.74-3.35 meters)
•Length: 60-70 feet (18.3-21.3 meters)
•Height (with skids): 12-14 feet (3.66-4.27 meters), depending on skid design
The tank’s shell thickness ranges from 0.5 to 1 inch (12.7-25.4 mm), with heads (end caps) slightly thinner, typically 0.4375-0.6733 inches (11.1-17.1 mm), as seen in examples like Trinity Industries’ 1974 models. These thicknesses are calculated per ASME Section VIII, Division 1, to withstand internal pressures—commonly 250 psig (pounds per square inch gauge) at 125°F (51.7°C).
Skid Framework
The skid is a critical feature, typically made from heavy-duty steel components like 12” x 12” tubing or 10” channel steel, fireproofed for safety in flammable environments. It elevates the tank off the ground, protects it during transport, and simplifies installation by eliminating the need for extensive on-site foundation work. Some skids include:
•Forklift Pockets: For easy lifting.
•Mounting Pads: To secure the tank without welding, allowing flexibility.
•Extended Platforms: For equipment like pumps or valves.
ASME Compliance
ASME certification ensures the tank meets rigorous standards for design, fabrication, and testing. It’s stamped with a National Board (NB) number, indicating registration and traceability. Key ASME features include:
•Weld Quality: Performed by certified welders, inspected via radiography or ultrasonic testing.
•Pressure Relief: Safety valves rated for 250 psig or higher, per NFPA 58 (Liquefied Petroleum Gas Code).
•Material Specs: Steel meets ASTM standards (e.g., A516 Grade 70 for pressure vessels).
Fittings and Valves
The tank comes equipped with a suite of fittings, often pre-installed for turnkey use:
•Internal Valves: With manual or pneumatic emergency shutdown.
•Back Check Valves: Prevent reverse flow.
•Relief Valves: Protect against overpressure.
•Bulkhead: Dual-purpose for loading/unloading, often with a 3-inch pump and 10 HP explosion-proof motor.
Technical Specifications
Capacity and Volume
At 30,000 gallons, the tank holds approximately 80-85% of its total volume for safety (to allow vapor space), equating to 24,000-25,500 gallons of usable liquid propane at standard conditions. For LPG (specific gravity ~0.5), this translates to 45-48 tons of product.
Pressure and Temperature Ratings
•Maximum Allowable Working Pressure (MAWP): 250 psig at 125°F, though custom units may reach 300 psig.
•Temperature Range: -20°F to 125°F (-29°C to 51.7°C), with insulation options for extreme climates.
Weight
•Tare Weight: 30,000-40,000 lbs (13,600-18,144 kg), depending on steel thickness and skid design.
•Gross Weight: Up to 100,000-120,000 lbs (45,359-54,431 kg) when fully loaded with propane.
Power Requirements
For integrated pumps or compressors:
•Motor: 10 HP, 3-phase, 230/460V, 50/60 Hz.
•Consumption: 7.5-15 kW/hour during operation.
Applications
The 30,000-gallon skid tank’s size and portability make it a go-to solution across industries:
1.Oil and Gas: Stores NGLs or propane at wellheads or processing plants, especially in temporary setups where permanent infrastructure isn’t feasible.
2.Agriculture: Fuels grain dryers or irrigation systems, as seen with Iowa farmers using skids for seasonal needs.
3.Propane Retail: Serves as a bulk storage unit for distributors supplying residential or commercial clients.
4.Industrial: Holds anhydrous ammonia for fertilizer production or chemical manufacturing.
5.Emergency Response: Provides temporary storage for fuel or medical gases in disaster zones, paired with gensets for off-grid power.
Case Study: Propane Distribution
A Midwest U.S. propane retailer uses a 30,000-gallon skid tank to supply 50 rural customers. The tank, delivered turnkey from a supplier like TransTech Energy, includes a dual bulkhead for bobtail loading and transport unloading. It handles 20,000 gallons monthly, refilled via MC- -grade propane trucks, ensuring no downtime during peak winter demand.
Operational Considerations
Installation
Unlike fixed tanks requiring concrete foundations, the skid design requires minimal setup:
•Site Prep: Level ground, gravel base, or simple concrete pads.
•Transport: Moved via flatbed truck or crane, with weights necessitating heavy-duty equipment.
•Commissioning: Connect power, test valves, and fill—often completed in 1-2 days.
Maintenance
•Inspection: Annual checks for corrosion, valve function, and pressure integrity.
•Cleaning: Drain and purge for internal inspection every 5-10 years, per ASME guidelines.
•Repairs: Weld repairs or valve replacements by R-stamp certified technicians.
Safety
•Emergency Shutdown: Pneumatic valves close in seconds if a pull-away occurs.
•Monitoring: Optional instrumentation (e.g., pressure gauges, level sensors) enhances safety.
Economic Analysis
Cost
•New: $50,000-$80,000, depending on features (e.g., smart monitoring, custom skids).
•Used: $30,000-$50,000, with 10-20 years of service life remaining.
•Rental: $500-$1,000/month from suppliers like Alliance Truck & Tank.
Operating Costs
•Power: $2,000-$5,000/year for pump operation.
•Fuel: $5,000-$10,000/year for genset use in remote areas.
•Maintenance: $1,000-$2,000/year.
ROI
For a retailer moving 100 tons/year, in-house storage cuts costs from $200/ton (outsourced) to $100/ton, recouping a $60,000 investment in 1-2 years.
Environmental Impact
Carbon Footprint
Running a pump 24/7 at 10 kW emits ~50 tons CO2/year (at 0.5 kg CO2/kWh). Propane itself, when burned, emits less CO2 than diesel or coal, making it a cleaner fuel option.
Refrigerant Shift
Older tanks use high-GWP refrigerants (e.g., R404A, GWP 3,922), but newer models adopt R744 (CO2, GWP 1), reducing leak impact.
Mitigation
Solar-powered gensets and recycled steel fabrication lower the lifecycle footprint.
Industry Trends
•Portability Demand: Skids surge in popularity for temporary oilfield or disaster relief needs.
•Smart Tech: IoT integration tracks levels and predicts maintenance, cutting downtime.
•Sustainability: ASME tanks adopt greener materials and power sources, aligning with 2050 net-zero goals.
Conclusion
The 30,000-gallon skid tank, available online as an ASME-certified storage solution, is a powerhouse of flexibility and reliability. Its robust design, portability, and turnkey options make it indispensable for mid-to-large-scale operations, from propane distribution to industrial storage. As technology and sustainability evolve, it’s poised to remain a cornerstone of the cold chain and beyond.Buy Used 30000 Gallon Skid Tank Online ASME Storage Tank On Skids
Advanced Engineering Details
Pressure Vessel Design
The 30,000-gallon skid tank is engineered as a cylindrical pressure vessel, optimized for strength and volume under ASME Section VIII, Division 1 guidelines. The cylindrical shape minimizes stress concentrations compared to spherical or rectangular designs, with the hoop stress (σ_h) calculated as:
•σ_h = P × r / t, where:
•P = internal pressure (e.g., 250 psig or 17.2 bar),
•r = radius (e.g., 5 ft or 1.52 m),
•t = wall thickness (e.g., 0.5 in or 12.7 mm).
For a 250 psig tank with a 5-ft radius, this yields a hoop stress of ~18,750 psi, well within the 25,000-30,000 psi yield strength of A516 Grade 70 steel. The longitudinal stress (σ_l = P × r / 2t) is half as much, ensuring balanced structural integrity.Buy Used 30000 Gallon Skid Tank Online ASME Storage Tank On Skids
The heads are typically ellipsoidal (2:1 ratio), reducing material use while maintaining pressure resistance. Their thickness is determined by:
•t = P × D / (2 × SE – 0.2P), where:
•D = diameter,
•S = allowable stress (e.g., 17,500 psi),
•E = joint efficiency (1.0 for fully radiographed welds).
This precision ensures the tank withstands both static pressure and dynamic loads during transport.
Skid Mechanics
The skid isn’t just a base—it’s a structural marvel. Constructed from 12” x 12” steel tubing or 10” I-beams, it’s designed to:
•Distribute Load: Spread the 30,000-40,000 lb tare weight across multiple contact points.
•Absorb Shock: Flex slightly under road vibration or crane lifts, rated for 2-3g forces.
•Facilitate Mobility: Include lifting lugs or forklift slots, supporting loads up to 120,000 lbs when full.
Some skids feature adjustable legs or hydraulic leveling for uneven terrain, enhancing deployment flexibility.
Corrosion Protection
Beyond Corten steel’s natural resistance, tanks are coated with:
•Epoxy Primers: 2-3 mils thick, resisting moisture and salts.
•Polyurethane Topcoats: 2-4 mils, UV-resistant for outdoor use.
•Cathodic Protection: Optional sacrificial anodes for buried or coastal units, extending life by 10-20 years.
Internal linings (e.g., phenolic epoxy) may be added for corrosive contents like ammonia, though propane typically requires no lining due to its non-reactive nature.
Operational Nuances
Filling and Unloading
Filling a 30,000-gallon tank with propane involves:
•Pumping: A 3-inch pump at 200-300 GPM (gallons per minute) fills it in 100-150 minutes.
•Vapor Management: Excess vapor is vented or recovered via a compressor, maintaining 80-85% liquid fill per NFPA 58.
•Temperature Control: Propane at 60°F (15.6°C) expands 1.5% per 10°F rise, so summer fills may cap at 75% to avoid overpressure.
Unloading uses gravity feed or pump assist, with dual bulkheads allowing simultaneous operations (e.g., filling a bobtail truck while receiving a delivery).
Instrumentation
Advanced units include:
•Level Gauges: Magnetic or float types, accurate to ±1%.
•Pressure Sensors: 0-300 psig range, with 4-20 mA output for remote monitoring.
•Temperature Probes: -40°F to 150°F range, critical for vapor pressure calculations (e.g., propane’s 124 psig at 70°F).
Smart systems integrate with SCADA (Supervisory Control and Data Acquisition), alerting operators to anomalies like a 5% pressure spike.
Transport Logistics
Moving a 30,000-gallon skid tank requires:
•Heavy Haul: A 10-axle flatbed trailer, permitted for oversize loads (70 ft long, 14 ft high).
•Cranes: 50-75-ton capacity to lift and place, costing $500-$1,000 per job.
•Route Planning: Avoid low bridges (under 14 ft) and weight-restricted roads (e.g., 80,000 lb limits).
Global Applications
North America: Oilfield Fracking
In Texas, a 30,000-gallon skid tank stores propane for fracking operations, powering pumps and heaters at remote sites. Its portability allows relocation every 6-12 months as wells deplete, with a 10 HP pump delivering 250 GPM to onsite equipment.Buy Used 30000 Gallon Skid Tank Online ASME Storage Tank On Skids
Middle East: LPG Backup
A Saudi refinery uses a skid tank as a contingency store for butane, maintaining 20,000 gallons at 200 psig. The skid’s fireproofed base meets Aramco’s safety standards, and solar-powered sensors track levels in 120°F heat.
Asia: Agricultural Ammonia
In India, a fertilizer co-op deploys a 30,000-gallon skid tank for anhydrous ammonia, supplying 50 farms. The tank’s turnkey design—delivered online from Dragon Products—cuts setup time to 48 hours, with a 3-inch valve feeding applicators at 150 GPM.
Europe: Disaster Relief
Post-flood in Germany, a relief agency uses a skid tank to store medical oxygen (converted for gas use), serving field hospitals. Its 250 psig rating and skid mobility enable rapid deployment via rail and truck.
Historical Context
The skid tank concept evolved from early 20th-century oilfield storage:
•1920s: Wooden skids supported small steel tanks for crude oil.
•1950s: ASME codified pressure vessel standards, birthing modern LPG tanks.
•1970s: Skid-mounted designs grew with the propane boom, exemplified by Trinity’s 30,000-gallon models.
•2000s: Online sales emerged, with platforms like Dultmeier Sales and TransTech Energy streamlining procurement.
Today, the 30,000-gallon skid tank reflects decades of refinement, balancing capacity with mobility.
Environmental Considerations
Emissions Profile
•Operation: A 10 kW pump running 24/7 emits 50-60 tons CO2/year (0.5 kg CO2/kWh).
•Leaks: A 1 kg propane leak (GWP ~3) is negligible vs. refrigerants like R404A (GWP 3,922).
•Transport: Hauling a 40,000-lb tank 500 miles burns 100 gallons of diesel (~1 ton CO2).
Sustainability Enhancements
•Insulation: Optional 2-inch polyurethane wraps cut heat gain, reducing pump runtime by 10-20%.
•Renewables: Solar gensets (5-10 kW) offset 30-50% of grid power in sunny climates.
•Recycling: End-of-life tanks are melted down, with 90% of steel reused.
Regulatory Compliance
•EPA: Limits VOC emissions during filling (e.g., vapor recovery mandatory in California).
•OSHA: Mandates fireproofing and emergency valves for worker safety.
Economic Modeling
Lifecycle Costs
•Capital: $60,000 (new, fully equipped).
•Annual Operating: $8,000 (power, fuel, maintenance).
•Depreciation: 15-20 years, with 20% residual value ($12,000).
Revenue Potential
A propane distributor selling 200 tons/year at $1,000/ton nets $200,000 revenue. In-house storage cuts costs to $100/ton vs. $200/ton outsourced, saving $20,000 annually—ROI in 3 years.
Online Procurement
Suppliers like Alliance Truck & Tank offer turnkey units online, with lead times of 4-8 weeks. Customization (e.g., extra valves, smart sensors) adds $5,000-$10,000 but enhances resale value.
Future Developments
Technological Innovation
•IoT Integration: Real-time data on pressure, level, and temperature, synced to cloud platforms.
•Cryogenic Options: Adaptations for LNG (liquefied natural gas) at -260°F, using vacuum insulation.
•Automation: Robotic valves and AI-driven maintenance alerts, cutting labor by 20%.
Market Expansion
•Renewable Fuels: Store bio-propane or hydrogen, aligning with decarbonization.
•Modular Systems: Stackable skids for scalable storage in tight spaces.
Speculative Uses
•Space Colonies: A 30,000-gallon skid tank could store liquid oxygen on Mars, skid-mounted for rover transport.
•Arctic Bases: Insulated units hold fuel in -50°F conditions, supporting research outposts.
SPECIFICATIONS:
- ● New manufactured tank
- ● ASME Section VIII/Div 1 code compliant
- ● National board certified
- ● Fully valved at factory and leak tested
- ● Load out station with integrated pump
- ● Severe duty engineered to consistently perform under punishing conditions
- ● Designed for ease of installation and fast time to production
Buy Used 30000 Gallon Skid Tank Online ASME Storage Tank On Skids
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