VMQ (methylvinyl silicone, silicone rubber) is a derivative of quartz. When it is created, organic groups such as methyl, phenyl and vinyl are attached to silicon atoms. The addition of other additional components to silicone chains makes it possible to obtain various properties of a silicone elastomer. Properties. VMQ elastomers are ideal for working with high and low temperatures. They have high heat resistance and oxidative stability, outstanding flexibility at low temperatures and are resistant to many chemicals, weathering, ozone and sunlight (UV). However, they are not resistant to the heated vapor, and their physical properties are usually low, but...
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How high pressure affects the mechanical seal. The high pressure of the working fluid in the mechanical seal causes the following problems: 1. An additional axial hydraulic load is created on the sealing surface, in addition to the fact that initially present on the friction pair under the action of a spring, this excessive axial load can: - generate heat that can damage seal components, such as elastomers and friction pairs, and in some cases damage the pumped medium; - lead to excessive wear of the surfaces of the friction pairs of the mechanical seal for a short period of...
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