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Revision 8.0 / July 2015
20
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The sequence of steps for installing and dismantling the mechanical seal depends on the pump and is
described in the pump manual.
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NEVER place the seal faces or seats on their sliding faces without having covered them adequately.
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To reduce friction during assembly, wet all slinging surfaces for the O-rings with water or lubricate
with silicone grease.
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Note special instructions for storing and handling elastomeric parts
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Keep elastomer parts made of EP rubber away from lubricants based on mineral oil.
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Take plenty of time and use little force when assembling O-rings made of PTFE in order to avoid
damage to other seal elements.
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Never apply lubricant to seal faces. Assemble in a completely dry, dustfee and clean condition.
23.2 Special procedures
Elastomer bellows seals are to be pushed onto the shaft sleeve using low-surface-tension water (addition
of a detergent) and a screwing movement. Use no oil or grease! Apply pressure only on the corner rings.
When you are finished with the assembly, check that the corner rings, the spring and the seal face fit
correctly
23.3 Operation
A properly operated mechanical seal requires low maintenance but is subject to a certain wear.
Make sure the seal is completely immersed in liquid (or there will be a risk of dry running!).
Take care during all works that the O-rings will be
assembled completely and without any damage.
Содержание MR 160
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