Duff-Norton has recently introduced a range of high pressure joints to their range of products for hydraulic and pneumatic applications. These high pressure joints are available in 3 different models from PT Link Systems in Australia.
Series 1700 features a single ball bearing design for slow rotation at up to 5,000 psi (350 bar). Standard models are constructed from nickel treated carbon steel, however stainless steel models are also available upon request.
In contrast, the Series 1900 can be used for higher pressure applications (up to 10,000 psi/ 700 bar) at speeds under 100 rpm. This series features two spaced ball bearings and Teflon encapsulated O-ring seals to minimise maintenance requirements.
Series 6000 joints are available in eight distinct sizes, ranging from 1 /8" - 1 1/2". These high pressure joints are more suited for shaft speeds of up to 5000 rpm and pressure up to 1500 psi (10 bar). Both radial and axial flow configurations are offered as standard models.