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Lock Down Device – Model 2429

Lock Down Device – Model 2429

The Lock Down Device is installed on top loading arms. It is designed to lock the arm in the operating position. This prevents upward movement during filling operations. When the drop tube is in the manhole the operator applies the lock and begins filling. The arm is then raised on completion of filling to release the locking mechanism.

Recommendation: 

These systems are particularly suitable for installation on loading arms where a pneumatic system is not available. They maintain the pressure on the manhole which in turn ensures a continuous seal and aids the vapour recovery.

However, we do offer alternatives to the 2429 model. We have the model 4942, which is manually operated through the control lever, which locks the arm in the required position by screwing in it. Also, we have the model 4659 which is moved by the operator when the arm is in loading position to ensure the pressure of the cone on the manhole of the tank.

For other loading arm accessories, please head to the bottom of our loading arm page where you can find a range valves, accessories and signal switches which are all compatible with our loading arms.

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Alternative designs and specifications for the Lock Down Device – Model 2429 are available on request