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FPT x Tube Adaptors | John Guest

John Guest x FPT Adapters, Converts MPT to Tube Fitting

PI450822S, PI451222S Features
  • Convert a Male NPT (MPT) to a Quick Connect Tube Fitting
  • Push-fit technology
  • Quick disconnection without the need for tools
  • Food Quality and suitable for potable liquids
  • Suitable for soft metal or plastic tubes
  • PI Series Suitable for air or inert gases
  • Superior flow characteristics
  • Scroll down to bottom of page for more Information and Specs
  • Contact us for high volume quotes
  • Click the part # below for specific info and a closer look
  • Please try and order in bag quantities of 10
    Part # FPT x Tube Adaptors | John Guest
    G67-4B-W PP450822W, 1/4" John Guest x 1/4" FPT Adapter
    In Stock  
    G67-6B PI451222S, 3/8" John Guest x 1/4" FPT Adapter
    In Stock  
    G67-6C-W PP451223W, 3/8" John Guest x 3/8" FPT Adapter
    In Stock  

    Related Items:

    Part #: Description: Price: Qty:
    GPI451214CS PI451214CS, 3/8 John Guest x 1/2 Female BSP Cone End $4.18
    GCI321214S CI321214S, 3/8 John Guest x 1/2 BSPP Faucet Connector $2.84

    3/8"JG x 1/2"FPT N/A FROM John Guest. Please see Female British Pipe Fittings
    *1/2" British Standard Pipe Thread will work with 1/2 MPT using Teflon Tape, double check for leaks, use at your own risk.
    Working Pressure and Temperature Range;
    Super Speedfit fittings are suitable for the following pressures and temperatures.



    5/32" - 5/16"
    4mm - 8mm

    3/8"- 1/2"
    10mm - 22mm

    -20°C  16 Bar 10 Bar
    Potable Liquids and Air    
    +1°C 16 Bar
     10 Bar
     +20°C  16 Bar  10 Bar
     +65°C  10 Bar   7 Bar

    Also suitable for vacuum

    Depending on the tube used, under certain conditions fittings may be used at higher pressures and temperatures. Please refer to John Guest Customer Service Department/website for guidance.

    Note: 1 Bar = 14.5 PSIG.

    Tube Types

    Plastic Tube - Polyethylene, nylon and polyurethane conforming to the tolerances shown below. For soft tubing or thin wall tube we recommend the use of tube inserts.

    Braided Tube - Use of Tube to Hose Stems is essential when using tube. Use of clamps to retain braided tube on barbs is recommended.

    Metal Tube (soft) - Brass, copper or mild steel conforming to the tolerances below

    Metal Tube (hard) - We do not recommend Super Speedfit fittings for hard metal tubes or chromium plated tubes.

    For stainless steel and other polished metal tubes we recommend the use of SuperSeal fittings.

    It is essential that outside diameters be free from score marks and that the tube be deburred before inserting the fitting.

    IPS is Closed Christmas Eve through the New Year takes orders 24/7 and will be processed in the order received for immediate shipping On Jan 2, 2019
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