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National B Hose Ends (Twist Lock / Dix-Lock Quick Acting)


Series B Twist-Lock Couplings, also known as Bowes Interchange or Dix-Lock QM Style Interchange, are used primarily on air or water hose up to 300psi (do not disconnect while under pressure). They are made of plated steel (available in brass on special request, use B- as a prefix) and the gasket is resistant to heat and oil. When coupled, they permit full flow, and the lock nut on the male head (-LN series) will prevent any disconnection when they are threaded up to the sleeve. Furthermore, the 200-S lock key can be installed for even further protection.

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