Description
The Polar MC-331 Industrial Gas Tank Trailer is engineered for the safe, dependable hauling of liquified gases, including LPG and anhydrous ammonia. Built to rigorous industry standards, this pressurized transport trailer offers exceptional durability, low maintenance, and long service life.
Durable Construction & Superior Finish
Constructed with a heavy-duty steel barrel and stainless steel undercarriage, load rack, fifth-wheel housing, and piping. The barrel and critical subframe components are finished with a protective powder coat over zinc-rich primer, providing advanced resistance against chipping, scratches, chemicals, and harsh environmental corrosion.
High-Performance Components
Equipped with Hendrickson Air Ride suspension and MAXX22 disc brakes for smooth, controlled handling. Pumping and fluid handling systems include all-welded stainless steel piping with MEC sweeps, MEC internal valves, flanged stainless steel globe valves, and a 4-inch Blackmer pump powered by a Char-Lyn hydraulic motor.
Safety & Reliability
Designed with single-compartment cylindrical high-pressure construction rated up to 265 PSI. Key safety components include rupture disk assemblies, emergency shut-off systems, electrostatic grounding provisions, safety relief valves, liquid level meters, and pressure gauges to ensure seamless loading, transport, and unloading.
| Manufacturer | POLAR |
| Model | MC-331 |
| Code | MC 331 |
| Capacity | 10,600 gal |
| Pressure Rating | 265 psi |
| Composition | Mild Steel |
| Suspension | Air Ride |
| Brakes | MAXX22 Disc Brakes |
| Tires | 11R22.5 |
| Wheels | All Aluminum |
| Number of Rear Axles | Tandem |
| Axle Type | Fixed |
| Pump | 4 in Blackmer Pump |
| Piping | Stainless Steel |














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