Inside the pressure area, situation with vaccum applications/ dry pumping mediums we can select double mechanical seals with external coolent or with barrier liquid. Many types of double mechanical seals are available. Cartridge type double mechancial seals also available
Double Mechanical Seal: Double Mechanical Seals are generally used for following circumstances · very dry medium · vacuum applications · higher temperatures · sludge with higher impurities or hard particles With above circumstance we must use double mechanical seal with external cooling provision. In this double mechanical seal assembly setting is more complicate for layman, so we always recommend double mechanical seal with cartridge assembly which is very much easy to assemble for layman.