LPG Road Tank Semi-Trailer
The LPG Road Tank Semi-Trailer is a highly specialized, heavy-duty pressure vessel transport trailer engineered specifically for the safe, high-volume road distribution of Liquefied Petroleum Gas (LPG, including propane, butane, and mixed gases). Built in strict compliance with international pressure vessel manufacturing codes (such as ASME Section VIII Div 1/2, GB150, and ADR Class 2 transport standards), the tank shell is fabricated from high-tensile fine-grain pressure vessel steel (Q345R / Q370R / 16MnDR) subjected to 100% X-ray non-destructive weld testing and stress-relieving heat treatment. Featuring a low center-of-gravity cylindrical profile with internal anti-surge baffles, it is equipped with a centralized rear or side safety valve box housing hydraulic or pneumatic emergency shut-off valves, liquid level gauges, pressure relief valves, and liquid/vapor phase quick-connect couplings. Paired with 3 to 4 commercial axles, air ride or mechanical suspension, and dual-line WABCO ABS/EBS pneumatic braking with Roll Stability Support (RSS), it delivers supreme road stability, structural longevity, and gas hazard containment safety. Fully certified under ASME, ADR, ISO9001, CCC, CE, DOT, and SGS standards.
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Product Details
Technical Specifications
Model NO. : Customized
Type : Semi-Trailer / LPG Liquefied Petroleum Gas Pressure Tanker
Water Capacity : 40,000 Liters to 60,000 Liters (Approx. 20T - 30T LPG Payload)
Design Pressure : 1.61 MPa / 1.77 MPa / 2.16 MPa (Based on Propane/Butane Ratio & Ambient Conditions)
Design Temperature : -40°C to +50°C
Condition : New
Grade : Heavy Duty / High-Pressure Liquefied Gas Transport Grade
Shape : Cylindrical Pressure Vessel
Origin : Shandong, China
Production Capacity : Customized
Certifications : ASME / ADR / GB150 / ISO9001 / CCC / CE / DOT / SGS
HS Code : 8716399000
Overall Dimensions : 12000-13800 x 2500 x 3700-3950 mm
Tank Shell Material : High-Tensile Pressure Vessel Steel Q345R / Q370R / 16MnDR (10mm - 14mm Shell, 12mm - 16mm Dished Heads)
Corrosion Allowance : 1.0 mm - 2.0 mm
Heat Treatment : Post-Weld Heat Treatment (PWHT / Overall Annealing for Stress Relief)
Radiographic Testing : 100% X-Ray Non-Destructive Testing (NDT) & Hydrostatic Pressure Testing
Kingpin : JOST 2-inch or 3.5-inch Heavy-Duty Bolted/Welded Kingpin
Landing Gear : JOST / FUWA Two-Speed Manual Landing Gear (28T Capacity)
Wheel Base : 6800mm + 1310mm + 1310mm (or 4-Axle Configuration)
Tread : 1820 mm / 2050 mm
Axle Number : 3 / 4 Axles
Axle Brand : FUWA / BPW / HuaJin Heavy Duty
Axle Capacity : 13T / 16T per axle
Tire Number : 12 / 16
Tire Specification : 12R22.5 / 385/65R22.5 Tubeless Heavy-Duty Tires
Tire Brand : Triangle / Double Coin / Michelin / Bridgestone
Rim : 9.00-22.5 / 11.75-22.5 Steel Disc Rims
Suspension : Heavy Duty Air Ride Suspension with Electronic Leveling / Mechanical Multi-Leaf Spring
Brake System : Dual-Line Pneumatic Air Braking System with ABS / EBS & Roll Stability Support (RSS)
ABS/EBS Brand : WABCO / Haldex
Self-dumping : Not Self-dumping
Main Beam / Chassis : High-Strength Low-Alloy Structural Steel Sub-Frame (Q345B/Q550) Integrated with Pressure Vessel
Manhole Cover : Top-Mounted Pressure-Rated Forged Steel Manhole (DN450/DN500)
Safety Valves : Full-Lift Internal Safety Relief Valves (Pop Action Vents)
Emergency Valve : Hydraulic / Pneumatic Internal Emergency Shut-Off Valves (Emergency Cut-Off)
Valving & Piping System : Liquid & Vapor Phase Globe Valves, Rochester Magnetic Liquid Level Gauge, Pressure Gauge, Thermometer
Safety Equipment : Static Discharge Grounding Reel, Copper Strips, Sunshade Cover (Optional), Fire Extinguishers
Spare Tire Carrier : 1-2pcs
Tool & Valve Box : Lockable Rear or Side Protective Steel Valve Cabinet
Electric System : 24V, 7 Pin Socket, Explosion-Proof LED Marker & Tail Lights
Wiring Harness : Armored Weatherproof Lines
Painting / Finish : Sand Blasting (Sa 2.5) + Zinc-Rich Epoxy Primer + Reflective Polyurethane Topcoat (Sun-Reflective White/Silver)
Colour : Custom White/Silver Coating with Mandatory Red Warning Bands & Gas Placards
Warranty : Pressure Vessel Shell 5Y / Axles & Valving System 1Y
Package : Nude Packing / Bulk Vessel / Ro-Ro
Delivery Time : 35-45 Working Days
Payment Terms : T/T, L/C
Key Structural & Performance Features
1. High-Tensile Pressure Vessel Shell & Stress-Relieved Construction
- Certified Pressure Vessel Steel: Fabricated from specialized fine-grain pressure vessel steel plates (Q345R / Q370R), precision-rolled and welded using automated submerged-arc processes.
- 100% NDT & Stress Relief Heat Treatment: Every structural seam undergoes 100% X-ray radiographic inspection and overall post-weld heat treatment (PWHT) in a thermal furnace to relieve residual welding stress, preventing stress-corrosion cracking.
- Hydrostatic & Leak Testing: Fully subjected to hydrostatic pressure tests (at 1.25x design pressure) and pneumatic leak-tightness tests before approval.
2. Specialized Valve Cabinet & Emergency Shut-Off System
- Centralized Safety Cabinet: Valving components are housed in a heavy lockable rear or side protective cabinet, shielding liquid and vapor phase manifolds from road impact.
- Hydraulic/Pneumatic Emergency Shut-Off: Equipped with emergency shut-off valves fitted with fusible links, allowing rapid manual or remote automated gas isolation during thermal or impact emergencies.
- Precision Monitoring Equipment: Includes a Rochester magnetic float level gauge, high-accuracy pressure gauges, dial thermometers, and top-mounted safety relief valves designed to release overpressure safely.
3. Low CG Chassis Integration & Anti-Rollover Safety
- Lowered Sub-Frame Architecture: The pressure vessel is securely mounted onto an integrated Q345B/Q550 structural sub-frame designed to maintain a low center of gravity (CG), significantly mitigating rollover risks during cornering.
- WABCO ABS/EBS with RSS: Integrated with electronic braking systems and Roll Stability Support (RSS) to apply automated wheel braking if lateral force thresholds are exceeded.
- Thermal Solar Protection: Features a highly reflective polyurethane paint system (or optional top sunshade shield) to reflect solar radiation and prevent excessive internal pressure build-up during long summer hauls.
Commercial & Logistics Terms
- Warranty Policy: 5-Year warranty for the pressure vessel shell; 1-Year warranty for axles, emergency valves, and running gear.
- Delivery Lead Time: 35 – 45 working days upon order confirmation and engineering drawing approval.
- Packaging & Shipping: Nude packing; shipped via Bulk Cargo vessel or Ro-Ro vessel.
- Payment Terms: T/T (Telegraphic Transfer), L/C (Letter of Credit).
