Mann Tek Safety Break-away Coupling Industrial 150# Flange

Mann Tek Safety Break-away Coupling Industrial 150# Flange

Part Number SBC400ALFL
Material Aluminum
Seal FKM (FPM)
Size 4"
DN Size 100.0
Length 9" (229mm)
Width 9.3" (236mm)
Working Pressure 230 PSI at 70°F (21°C)
Flow 800 GPM (3028 LPM)
Optional Pkg/Box Qty 1
Weight Lb 19.3030


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


  • 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

Available Options

  • Also available in NPT Thread, BSP thread, DN Flange, 300# ASA Flange, Grooved Ends or any combination thereof. Consult Dixon for more information.
  • Optional Non-closure Design available, consult Dixon for more information. The non-closure design is an economical alternative which allows the coupling to break away due to pull-away/drive-away incidents thus protecting piping systems and equipment. The design allows spillage of product in these instances due to the lack of valving in the coupling. Useful applications where non-hazardous product is being conveyed and where there are no environmental concerns.

How it works

  • The safety break-away valve consists of two halves, each with a valve that has an O-ring seal. When the safety break-away couplings separate, it allows the valves to close. The two valves close rapidly, minimizing exposure to personnel and the environment.
  • Safety break-away 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 break-away coupling reacts in a natural way to the reduction of the hose break forces.

Repair Kits
Part # Description Includes Item # Qty
O-ND5-01 4" FKM Replacement O-ring Kit
S-N5D-44-24 4" Replacement Bolt Kit for Aluminum Breakaway-24 kN Bolts

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