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The objective of a thermosiphon system is to provide a flow of cooling media to the mechanical seal at the required pressure.The media recirculates through the seal by heat convection generated as the pump shafts rotate through the seal. The media in the vessel is forced into the seal through the bottom line as the hot barrier fluid leaves the seal through the top line back to the vessel.The media flows in the circuit and is cooled by contact with the walls of the tank and the cooling if used. The thermosiphon system is therefore passive and stand-alone, avoiding the cost and complexity of a conventional liquid pump.
In order to achieve this natural cooling effect, the tank contains a suitable sealing liquid must be located approx. 1-2 m above the seal and not more than 2m on any side., connecting the seal and the tank pipes in stainless steel.
Depending on the application, local conditions and client preferences, the thermosiphon system can be delivered in a number of different versions by combining several options and a basic package.
Tank: Volume: 12 litres approx., media volume 7 litres. Max operating pressure: 16 bar Material: EN. 1.4436/ AISI 316 Sight Glass: For media level inspection. Cooling Coils: Fixed cooling coil is standard in every tank. Manometer: Display pressure in the tank. Thermometer: Display media temperature in the seal return line. Ball Valves: On the in ports and out ports, these are used to stop flow and isolate the seal during maintenance. Fittings: G-series pipe thread hose fittings for in and out ports. Plugs for option ports: All unused plugs are plugged and sealed.