72m³ LPG Semi-Trailer Product Overview
This 72 cubic meter LPG semi-trailer is designed for the safe and efficient transport of liquefied petroleum gas (commercial propane). This FL type dangerous goods vehicle complies with Class 2.1 hazardous material regulations, with a unit volume filling ratio of 420 kg/m³.
The tank is constructed from Q420R high-strength steel with 11.5mm shell thickness and 8.0mm head thickness, providing excellent pressure resistance and durability. The vehicle is equipped with a 3-axle BPW air suspension system, BPW 10T axles, 12 aluminum alloy rims with 12R22.5 radial tires, and a JOST 50# king pin and landing gear. Standard safety features include EBS (Kormee CM-TEBS), disc brakes, an emergency shutoff system, and a conductive electrostatic grounding belt.
This semi-trailer is designed for a 10-year service life and meets all requirements for domestic road transport of hazardous materials.
72m³ LPG Semi-Trailer Vehicle Technical Parameters
| Parameter | Value |
|---|---|
| Product name | LPG transport semi-trailer |
| Brand | Qixing |
| Announcement batch | 377 |
| Gross mass | 40,000 kg |
| Curb weight | 14,498 kg |
| Rated load mass | 25,502 kg |
| Tank volume | 72 m³ |
| Overall dimensions (L×W×H) | 13,500 × 2,550 × 4,000 mm |
| Axle configuration | 3 axles |
| Axle load distribution (full load) | Front: 16,000 kg / Rear: 24,000 kg |
| Wheelbase | 7,010 + 1,310 + 1,310 mm |
| Rear track | 1,860 / 1,860 / 1,860 mm |
| Tire size | 12R22.5 12PR or 11.00R20 12PR |
| Suspension type | Air suspension (BPW) |
| Approach / departure angle | – / 15° |
| Front / rear overhang | – / 1,940 mm |
| Maximum roll stabilization angle (full load) | ≥ 23° |
| Design service life | 10 years |
| Type of transport | Domestic road transport (dangerous goods) |
72m³ LPG Semi-Trailer Tank Parameters
| Parameter | Value |
|---|---|
| Medium | LPG (commercial propane) |
| Hazard classification | Class 2.1 (flammable gas) |
| Unit volume filling ratio | 420 kg/m³ |
| Tank total capacity | 72 m³ |
| Tank effective volume | 60.71 m³ |
| Tank dimensions (total length × outer diameter) | 13,161 mm × φ2,533 mm |
| Shell material | Q420R (WH590E), thickness 11.5mm |
| Head material | Q420R (WH590E), thickness 8.0mm |
| Working temperature | -40°C to +50°C |
| Design temperature | -40°C / +50°C |
| Working pressure | ≤ 1.60 MPa |
| Design pressure | 1.76 MPa / -0.1 MPa (full vacuum) |
| Hydraulic test pressure | 2.29 MPa |
| Pneumatic tightness test pressure | 1.76 MPa |
| Weld joint coefficient | 1.0 |
72m³ LPG Semi-Trailer Safety Devices
| Component | Model / Specification |
|---|---|
| Safety valve (with rupture disc) | NA42F-25 DN100 |
| Safety valve set pressure | 1.85 MPa |
| Safety valve rated discharge pressure | ≤ 2.11 MPa |
| Safety valve return seat pressure | ≥ 1.67 MPa |
| Emergency shutoff valve (liquid phase) | QGJ43F-25P DN50 |
| Emergency shutoff valve (vapor phase) | QGJ43F-25P DN25 |
| Emergency shutoff type | Built-in full-port, mechanical operation |
| Closing time | ≤ 5 seconds |
| Thermal closure temperature | 75 ± 5°C |
72m³ LPG Semi-Trailer Instrumentation
| Component | Model | Specification |
|---|---|---|
| Level gauge (floating ball type) | UQZ-6 | Range 200–2310mm, accuracy 2.5 |
| Pressure gauge | YN-100 | Nominal pressure 2.5 MPa |
| Thermometer | WTQ-280 | – |
Key Construction Features
Tank and Pressure Vessel
- Q420R high-strength steel shell and heads
- 11.5mm shell thickness, 8.0mm head thickness
- Full penetration welding with 1.0 joint coefficient
- Designed for 1.76 MPa internal pressure and full vacuum
Suspension and Axles
- BPW 10T axles (3 units)
- BPW air suspension (non-lifting type)
- Aluminum alloy rims (12 pieces)
- 12R22.5 12PR radial tires
Braking and Safety
- EBS: Kormee CM-TEBS (optional: Knorr K11061XVXX)
- Disc brakes on all axles
- Emergency shutoff system with thermal closure
- Safety valve with rated discharge capacity
Attachments and Accessories
- JOST 50# king pin (welded/bolted)
- JOST single-action landing gear (28T)
- High-strength steel side guards
- Aluminum alloy toolbox
- Aluminum alloy tire guards
Applications
- Long-distance LPG transport from refineries to distribution centers
- Bulk propane delivery for industrial and residential use
- Dangerous goods fleet operations
- Inter-provincial hazardous material logistics
Frequently Asked Questions (FAQ)
Q1: What is the tank capacity of this LPG semi-trailer?
A: The total tank capacity is 72 m³ with an effective volume of 60.71 m³. The filling ratio is 420 kg/m³ for commercial propane.
Q2: What type of suspension does it use?
A: The trailer is equipped with BPW air suspension (non-lifting type) on all three axles.
Q3: What safety features are included?
A: It includes EBS with disc brakes, emergency shutoff valves, a thermal closure device (75±5°C), a safety valve with rated discharge capacity, and a conductive electrostatic grounding belt.
Q4: What materials are used for the tank shell and heads?
A: Both the shell and heads are made of Q420R (WH590E) high-strength steel, with 11.5mm shell thickness and 8.0mm head thickness.
Q5: What is the design pressure and working temperature range?
A: The design pressure is 1.76 MPa (with full vacuum rating -0.1 MPa), working temperature ranges from -40°C to +50°C.
Q6: Can the axle and tire configuration be customized?
A: The standard configuration includes BPW 10T axles and 12R22.5 12PR tires. Other brands (such as Fuwa) and tire sizes are available upon request.
Q7: What is the maximum roll stabilization angle at full load?
A: The maximum roll stabilization angle is ≥23° at full load.
Q8: Is the trailer suitable for international shipping?
A: While designed for domestic road transport, the trailer can be configured for export with appropriate packaging and shipping arrangements.
