A trailer that has a main body having a front bulkhead, an opposing rear bulkhead, an exterior wall operably engaged with the front and rear bulkheads, and at least one interior chamber defined collectively by the front bulkhead, the rear bulkhead, and the exterior wall. The at least one interior chamber is adapted to carry a load. The trailer also includes a removable false bulkhead operably engaged with the main body. The false bulkhead is located a distance away from one of the front bulkhead and the rear bulkhead.

The trailer includes an exterior drainage system to prevent unwanted stains or blemishes caused by precipitation on the trailer. The trailer includes a main body that has an exterior wall with a first end and an opposing second end. The trailer also includes a bulkhead provided proximate the first end of the main body. The trailer also includes at least one interior chamber defined by the main body and adapted to carry a load. The trailer also includes a drainage system provided on the trailer. The drainage system includes a drainage portion extending outwardly beyond the first end of the exterior wall, said drainage portion being adapted to direct precipitation away from the bulkhead and towards a ground surface over which the trailer travels.

Vehicle for delivering inflammable fluid comprising a tractor unit and a tank mounted on a support, the vehicle including a fluid circuit connected to the tank that includes a set of pneumatic valves. The vehicle includes an electrical circuit having at least one electrical component and an electricity source connected to the electrical circuit via at least one port for connecting to a connection interface. A cover moves between a first position blocking access to the connection port(s) to prevent the electrical connection between the electricity source and the electrical circuit and a second position not blocking access to the connection port(s) to enable the electrical connection between the electricity source and the electrical circuit. The vehicle includes a switch connected to the fluid circuit switchable between a first state enabling the operation of the set of pneumatic valves to allow filling or draining and a second state preventing the operation of the set of pneumatic valves to prevent filling or draining. In its first position, the movable cover switches the switch or allows it to is be switched to its first state. When the movable cover is in its second position, the switch is automatically switched to its second state.

A deployable safety zone system includes at least a first arm mounted on a support member and being movable between stored and operating positions relative to the support member. The support member and first arm define a safety zone between then when the first arm is in the operating position. The safety system may include reflective mechanisms, light sources, and an alarming system. The alarming system may include a transmitter positioned on one part of the safety system, a receiver positioned on another part of the safety system and an alarm mechanism. A signal may be sent between the transmitter and receiver and if that signal is interrupted, a visual or audible alarm may be generated. Alternatively, the deployable safety zone system may comprise a sensor assembly disposed adjacent the support member. The alarmed safety zone is defined between the support member and the sensor assembly.

The invention comprises a main and a subsequent stage. At the main stage, the medium is pumped into a first instrument line. This first instrument line is mounted in a main pipeline system and is equipped with an inlet mass meter with a first flow rate range. After reaching of a set value from the instruments, an automated control system (ACS) stops the first line pump, ensures operation of its driving isolation valves, thus, completing the main stage measurement cycle, and switches the system into the subsequent stage mode. At the subsequent stage, the medium flow is collected from the tank and cavities of the measuring system. It flows by gravity into the bottom of the system inner volume (9) and is then supplied by a to a second instrument line equipped by a mass meter with a second and lower flow rate range.

Vehicle for delivering inflammable fluid comprising a tractor unit and a tank mounted on a support, the vehicle including a fluid circuit connected to the tank that includes a set of pneumatic valves. The vehicle includes an electrical circuit having at least one electrical component and an electricity source connected to the electrical circuit via at least one port for connecting to a connection interface. A cover moves between a first position blocking access to the connection port(s) to prevent the electrical connection between the electricity source and the electrical circuit and a second position not blocking access to the connection port(s) to enable the electrical connection between the electricity source and the electrical circuit. The vehicle includes a switch connected to the fluid circuit switchable between a first state enabling the operation of the set of pneumatic valves to allow filling or draining and a second state preventing the operation of the set of pneumatic valves to prevent filling or draining. In its first position, the movable cover switches the switch or allows it to is be switched to its first state. When the movable cover is in its second position, the switch is automatically switched to its second state.

A vehicle includes at least one hose extending from the vehicle and configured to extend below ground through a manhole, and a light system. The light system includes a storage member, such as a retractable reel, coupled to the vehicle, a flexible line wrapped at least partially around the storage member, and a light source coupled to the flexible line. The storage member is adapted to selectively extend and retract the light source together with the hose below ground, and the light source is storable on the vehicle adjacent the storage member. The light source has a self-contained power source. In some systems, the flexible line and/or the light source are removable from the vehicle so they can be moved to a remote location from the vehicle.

An aerodynamic wrap for use with a tank trailer illustratively includes opposing first and second side assemblies. In an illustrative embodiment, each side assembly includes an upper panel pivotably supported by the tank trailer, and a lower panel pivotably supported by the upper panel. A lower connecting member illustratively couples the lower panels of the first and second side assemblies under the belly of the tank trailer.

A tank trailer includes a tank having an outer surface face and an inner surface and a central longitudinal vertical plane extending between the first end and the second end. The outer surface faces away from the central longitudinal vertical plane and the inner surface faces towards the central longitudinal vertical plane. The outer surface and the inner surface define an interior volume adapted to be filled with material. The tank trailer may further include a set of ground-engaging wheels supporting the tank trailer from below, a bar positioned proximate the outer surface of the tank and a light source provided on the bar. The tank may further include a frame member operatively engaged with the bar and a sheet material extending between the bar and the frame member. The frame member is movable between a first position and a second position.