These tables have been prepared in an effort to familiarize engineers with some of the world standards and American equivalents. In a few cases, dimensions will differ from these tables, particularly in sizes over 48”. It is safest to work from certified prints before fabricating mating rubber or metal flanges. Thicknesses are omitted because of…
EXPANSION JOINT INSTALLATION PROCEDURES 1. Do not weld near any rubber expansion joint or weld the mating flanges with the expansion joint in place. There is the possibility of fire, spark or heat damage. 2. All pipe lines should be properly supported so that the expansion joints do not carry the pipe load. 3. a.…
A Comparison Of Tire Cord and Elastomeric Materials Used in Spherical and Other Style Expansion Joints NOTE: At 250°F, there is no significant change in Kevlar Breaking Strength, Table 1; Modulus, Table 2; or Aging Properties, Table 3c. ElastomersNatural RubberEPDMNeoprene®Hypalon®ChloroButylNitrile Tensile Strength Carbon Black ReinforcementOver 3000 psi (2122 kg/cm2)Over 3000 psi (2122 kg/cm2)Over 3000 psi…
MERCER Elastomer Chemical Resistance Guide This guide is designed as an aid in selecting common elastomers used to conduct some of the many types of materials found in industry. Improper selection of tube and/or cover materials can result in decreased service life, or complete failure of the expansion joint. For example, Natural Rubber is an…