S51 Series

SafeWay's S51 Series is a minimum spill, thread-toconnect, fluid transfer quick coupling designed for use with most industrial fluids. It can be connected under full system pressure by rotating the female threaded heavy-duty ductile cast iron wing nut or steel hex nut onto the mating male threaded tip (nipple).

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  • Applications include “wet-line-kits” used widely on dump trailers, mobile drilling rigs, mining equipment, large mobile equipment, salt spreaders, and chemical transfer units.
  • Minimum air inclusion during connection and minimum fluid spillage during disconnection.
  • Interchangeable half-for-half with the Parker 6100 Series, Dixon W-Series, Aeroquip FD51 (5100) Series, and Snap-Tite 78 Series.
  • Brass body, tip and poppet, combined with a rugged steel valve, provide corrosion resistance and durability.
  • Optional electroless nickel plated steel (-STL) tip and body shell is combined with standard internal parts and locking mechanism to provide a rugged, less costly alternative that is well suited for most applications.
  • Optional salt bath nitride coated steel upon request.
  • All S51 Series quick couplings are 100% leak tested.
  • Connection-under-pressure can be accomplished due to our heavy-duty poppet assembly with bonded valve seals.
  • A rugged, high quality machined carbon steel valve; no powdered metal parts.
  • Available with either a ductile cast iron wing nut or heavy duty steel hex nut to make a threaded connection.
  • SafeWay’s Ductile Cast Iron Wing Nut is specifically built to withstand hammer blows associated with connection and disconnection-under-pressure.
  • Available heavy-duty flange provides a simple and reliable method of bulkhead mounting the quick coupling.
  • Completely field serviceable with seal repair kits.
  • Method of obtaining and presenting performance data conforms to ANSI (NFPA) T3.20.2.R2, Hydraulic fluid power – Quick action couplings – Test methods.

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