Nylon Air Tubing
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| Nylon is a good choice
for general-purpose pneumatic applications. Although nylon is not as flexible as polyurethane it is much stronger and has a higher pressure rating. Due to it’s strength, nylon tubing can be manufactured with thinner walls while still maintaining high pressure ratings. This walled tubing allows for a higher flow rating for a given outside diameter. In addition to it’s strength, Nylon is heat and light stabilized. Nylon’s combination of high pressure rating, high flow rate, flexiblity, and toughness make it the ideal choice for most compressed air systems. Certain grades of nylon are also approved for use in air brake systems under SAE J844. Nylon is also known as Polyamide and was the first engineered thermoplastic. Nylon compounds are classified by the number of carbon molecules that they contain. Common compounds used in tubing are Nylon-11 and Nylon-12. Nylon is hygroscopic by nature, meaning that it tends to absorb moisture. The compounds used in compressed air tubing generally keep the absorbtion rate to under 1%.Surge pressure must be under the max. operating pressure. If exceeding that value, fitting may be damaged and tubing may burst. The values of the max. operation pressure are at a temperature of 20°C. Refer to the burst pressure characteristics curve for other temperatures. Avoid abnormal temperature Rise which may burst the tubing. The values of the min. bending radiuses are at a temperature of 20°C, and O.D. variable rate 10% max. In case that operating temperature is higher than 20°C, O.D. variable rate may be over 10% even if bending radius is within the specified range. |
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