Dixon SBC300AL MannTek Safety Breakaway Coupling is a 3" female NPT x female NPT hose fitting made of aluminum with an FKM (FPM) seal. This coupling provides emergency breakaway protection for hose lines, preventing damage from excessive pull forces. Length is 11".

Applications

• Coupling is designed to minimize spillage and damage associated with drive away and pull away incidents.
• Typical applications: loading rack

Features

• Designed to be installed between a fixed point (pipe, pump, manifold) and a hose
• Coupling automatically senses an excessive load, closes the valves and disconnects
• High flow rate / low pressure drop

How It Works

• The safety breakaway valve consists of two halves, each with a valve that has an O-ring seal. When the safety breakaway couplings separate, it allows the valves to close. The two valves close rapidly, minimizing exposure to personnel and the environment.
• Safety breakaway couplings have three external break bolts. In the case of axial tension all of the bolts take up the force corresponding to the break force on the hose with a safety margin. Non-axial forces concentrate the tension forces more strongly on one bolt, so that the safety breakaway coupling reacts in a natural way to the reduction of the hose break forces.