Low Pressure Reciprocating Seals for Hydraulic Control Valves

Abstract

In tests on low-pressure oil seals the technique of designing a synthetic rubber lip type of rotary seal so that it is “run-in” on the shaft was applied to finishing the lip of a seal for reciprocating duty. The performance of a seal so treated is shown to be greatly superior to that of untreated seals. A new method of measuring the inward load was devised and is described in detail. Interesting data on friction were noted and are shown graphically.