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     HOME > FITTINGS & VALVES > John Guest Fittings & Valves > Female British Pipe Flat x Tube | John Guest

Female British Pipe Flat x Tube | John Guest

PI451213S, PI451214FS, John Guest x British Standard Pipe Flat End

    PI451213S, PI451214FS Features
  • Convert a Female BSPP 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 or For factory product specifications please refer to the John Guest Web Site
  • 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 # Female British Pipe Flat x Tube | John Guest
GPI451213S PI451213S, 3/8 John Guest x 3/8 BSP Flat/FPT Adapter- Black O-Ring Included
In Stock  
GPI451214FS PI451214FS, 3/8 John Guest x 1/2 BSP Flat/FPT Adapter - O-Ring Included
In Stock  

For current factory product specifications please refer to the John Guest Web Site
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.

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