High index compression springs offered in 316 stainless steel
Lee Spring has introduced a range of low-pressure, high-index springs, which are finding use in relief and check valves, pistons, syringes, motor brushes, dispensers, contacts and toys.
Featuring large diameters, Lee Spring's Lite Pressure soft springs offer from 7kPa to 35kPa pressure at 80% deflection. As the potential application range for these springs is so broad, they are supplied only in Type 316 stainless steel to suit most functions. This material adds optimal corrosion resistance, enhanced cleanliness through passivation to ASTM A967 and ultrasonic cleaning and higher levels of product purity. It also allows the springs to be used at moderately elevated temperatures.
These high-index compression springs are carefully packaged for ease of handling and to minimise tangling or distortion in transit and storage. Pressure is described as a force that is exerted over a surface area. In regards to compression springs, the pressure exerted as the result of a specific deflection can be more technically described as force over a flat surface with a circular perimeter (the nominal hole in which the spring is being used). Here, the term 'Lite Pressure' is used to describe a series of springs designed to be utilised where relatively low forces are required for a given diameter. The pressure rating assigned to each item of this series of springs is a selection parameter to assist in meeting qualitative or quantitative requirements.
Each series is offered in a range from 7kPa to 35kPa pressure ratings. The pressure ratings used for the Lite Pressure series springs have no direct relationship with 'pressure' as traditionally used in the fluid power industry, although indirectly the pressure ratings are conceptually equivalent. Fluid pressure would be the result of a spring force acting over the specific area exposed to the fluid and would depend on other application components such as the valve face or the piston head.
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