1/4" Flow S1 Safety Coupler-1/2"NPT Male ("High Flow" Profile)

Weight: 0.30 lbs

1/4\" Flow S1 Safety Coupler-1/2\"NPT Male (\"High Flow\" Profile)

Prevost S1 Safety Coupler (Hi-flow Profile, 1/2" Male) - For use with "high flow" plugs. Vents line pressure and disconnects from the pneumatic system with a single push of the button. Ideal for use at the compressor and at wall drops throughout the workshop. See S1 coupler video.

  • Controlled safe uncoupling
  • Avoids risk of dangerous "hose whip" or accidental disconnection
  • Automatic pressure venting and disconnection
  • Optimised flow rate, limited pressure drop

Technical features of this coupler include........

  • 1/4" Flow (37.7cfm)
  • 1/2" NPT Male
  • Heavy duty composite (scratch free) body
  • European High Flow Profile
  • Nitrile seals for leak free connections
  • Impact resistant plastic composite body
  • Max service pressure - 174psi
  • Anti-static
  • Easy to connect under pressure

Larger photo


Note on Thread Size - Thread Size (NPT) does NOT refer to the physical dimension of the pipe or fitting. Please refer to the table below if you're unsure of which size to buy. For example, a 1/4" NPT pipe thread (common air tool fitting size) has an outer diameter of 0.540".

Outside Diameter (OD/inches) = Pipe Thread Size (NPT)

  • 13/32 (.405") = 1/8" NPT
  • 35/64 (.540") = 1/4" NPT
  • 43/64 (.675") = 3/8" NPT
  • 27/32 (.840") = 1/2" NPT
  • 1-3/64 (1.050") = 3/4" NPT

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