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12mm John Guest Stop Valve

$ 8.76

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  • 12mm John Guest Stop ValveJohn Guest is the world’s leading manufacturer of high quality push-in fittings, pipe and plastic plumbing systems used on motorhomes, caravans, yachts and food trucks, 12mm John Guest stop valve is easy to use, simply push the tubing all the way in then pull on the tubing to lock for a high water pressure sealed connection12mm John Guest stop valve12mm tube x 12mm tubePush-fit technologyQuick disconnection without the need for toolsHigh chemical resistanceFood Quality and suitable for potable liquids and pure water applicationsNot suitable for compressed air and vacuum applications Food QualityAll these fittings are produced in Food and Drug Administration (FDA) compliant materials and are therefore recommended for food quality applicationsHOW SUPER SPEEDFIT WORKS To make a connection, the tube is simply pushed in by hand; the unique patented John Guest collet locking system then holds the tube firmly in place without deforming it or restricting flow. Materials of construction  Super Speedfit fittings are made up of three components:  Bodies are produced in an acetal copolymer or polypropylene. ‘O’ rings are Nitrile rubber or EPDM. Collets are produced in acetal copolymer or polypropylene with stainless steel teeth. TO DISCONNECT Push in collet and remove tube  Super Speedfit fittings are suitable for the following pressures and temperatures.Temp.Pressure5/32″ – 5/16″ 4mm – 8mm3/8″- 1/2″ 10mm – 22mmAir-20°C 16 Bar10 BarPotable Liquids and Air 1°C16 Bar 10 Bar  20°C 16 Bar 10 Bar  65°C 10 Bar  7 BarTube TolerancesSuper Speedfit fittings are offered for tubes with outside diameters to the following tolerances.Size (inches) 5/32 – 3/16 1/4 – 1/2Tolerance (inches) 0.001 / -0.003 0.001 / -0.004Size (mm)4mm – 5mm 6mm – 22mmTolerance (mm) 0.05 / -0.07 0.05 / -0.10Maximum Torque Values for Plastic Threads BSP, BSPT & NPT.Plastic threads are not generally as strong as brass threads. Customers and end users should be aware of this when choosing products for their applications. Over-tightening of plastic threads will cause undue stress and eventual cracking and leakage. The maximum torque figures for BSP and BSPT threads used in John Guest fittings in mating threads conforming to the relevant BS or International thread standards are shown below.Threads1/8 – 1/43/8 – 1/23/4Max.Torque1.5Nm3.0Nm4.0Nm

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