Drip Bucket and Bucket Hook A hook on the end of the Drop Tube and a bucket to catch product drips
T Deflector A ‘T’ piece fitted to the end of the Drop Tube to deflect the flow as it enters the tank
Cone Deflector A Cone fitted to the end of the Drop Tube to spread the flow evenly as it enters the tank
Drop Tube Handle A manual handle on the Drop Tube for handling the loading arm
Bonding Straps A hard wired link across each swivel joint to maintain electrical continuity.
Balance Mechanisms Arms are balanced by heavy-duty compression spring with 90° of total movement. Alternative balance mechanisms available are gas strut, counterweight, pneumatic and hydraulic
Ground Verification Monitor An explosion proof electrical control system to continually monitor static charge accumulation in the vehicle. Communicates with the DCS to allow operations to start/carry-on only when the static accumulation is below recommended levels
Rack Monitor Where applicable. An explosion proof electrical control system that continuously monitors the high level liquid sensors in a tank/compartment. In the event of a high level signal or a sensor failure the monitor shuts down the loading operation
Remote Operator To operate the loading valve manually from close to the apex of the loading arm
Parking Adapter A device to retain the loading arm in it’s parked position
Parking Adapter and Drip Collection A Parking funnel attached to the loading rake with a drain pipe to a central collection point
Position Sensor Electrical explosion proof proximity or limit switch (s) to advise the position of the loading arm
High Level Detection Electrical explosion proof sensor to advise when the liquid has reached a predetermined point
Vapour Recovery
Vapour plate and vapour hose Mounted on the Drop Tube of an open dome fill operation to divert most of the displaced vapours from the tank away from the loading area. Usually includes High Level Detection
Vapour Cone and vapour hose Mounted on the Drop Tube of an open dome fill operation to divert the majority of displaced vapours from the tank away from the loading area. Always includes High Level Detection
Piggy Back Vapour Hose For Tight Fill operations, a vapour hose is carried by the loading arm and used to divert all the displaced vapours away from the loading area
Telescopic drop tubes To enable the product to be dispensed in to the tank at the lowest level possible. Also used for continuity between the loading arm and the tank. Manual and powered
Parallel Device Maintains the Drop Tube is a vertical position regardless of the position of the Primary Tube. Common use with Vapour Cones
Hold Down An assembly to provide a physical lock for when the arm is in the lowered and loading/unloading position. Recommended on Variable Reach Loading Arms
Check Valve Mounted in the Primary to prevent product being drawn back in through the loading arm. Also acts as a pilfering deterrent
Leak Detection System Monitors each swivel joint for signs of primary seal failure to give early warning of a potential leak to atmosphere
Stand Post A fabricated stand to which the loading/unloading arm is attached. Most large Top Loading Arms and some Bottom Loading Arms come with a Stand Post
Outboard End Connections to suit the application Hammer Union, Dry- Break Couplers/Adapters, Cam and Grove Couplers and Adapters, Lap Flange connections
Purging Points or system To allow an inert product to clear out any remaining product in the arm