Pressure Hose Made in Reinforced Nylon
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ANEW type of Nylaflow flexible pressure hose has been introduced by Polypenco, Ltd., Welwyn Garden City. It Herts. consists of a specially for mulated polyamide (nylon) inner tube reinforced with high-tensile-strength yarn and is available in sizes from in. to in. and in two pressure grades. The grades are No. 800, which has a minimum burst pressure of 8,000 p.s.i.; and No, 500, which has a minimum burst pressure of 5,000 psi. End fittings designed for Nylaflow hose are available for inside diameters of f in., ig in., in., in.. and t in. The new pressure hose is claimed to have several advantages over conventional hoses, including outstanding resistance to flex, pressure pulse and vibrational fatigue; light weight (f -weight of equivalent rubber hose) and small outside-to-inside diameter ratio; resistance to swelling in standard and non-flammable hydraulic fluids and rocket fuels; an operating temperature range of —80°F. to 250°F. (intermittently from —200°F. to 300°F.); low Freon permeability (approximately 1/10 that of rubber hose); and availability in continuous lengths.
The hose is suited to such automotive applications as air and hydraulic braking and power circuits.