Seal Support System

Thermosyphon Pot

A thermosyphon pot is a reservoir of either in carbon steel or stainless steel. The capacity of the reservoir is generally 10 Liters at normal liquid lever (NLL). It can be equipped with or without cooling coil. It is provided with hand pump for the make-up of buffer or barrier liquid loss. Ports are available at the top dish end for connections of pressure gauge, pressure switch and level switch. Standard thermosyphon pot is available with weld type lever gauge.

Objective

Thermosyphon Pot is used in double mechanical seals so as to supply external barrier liquid which eliminates the leakage of hazardous process liquid into atmosphere.
Due to convection current, thermosyphon pots used in double seals are used to take away the heat generated across the faces.
Thermosyphon Pots used in double seals with unpressurised buffer liquid acts as a quenching device which dissolve the solids particles when inner seal liquid leaks into the outer seal chamber

Advantages

Elimination of hazardous process liquid leakage
Better lubrication for the outer seals preventing dry-running
Process liquids which tends to solidify or icing can mix with buffer liquid in tandem arrangement.
Leakage can be compensated using hand pump
Acts as a coolant for the outer seals
Easily mounted on support and easily accessible for maintenance

Technical Features

Equipped with cooling coils with cooling water on coil side which takes away the heat generated by seal faces
Works on the principle of convection heat transfer method wherein the hot liquid rises up and cold liquid settles down.
Available with vent port to remove any entrapped gases from the system
Fitted with hand – pump for the make-up of buffer / barrier liquid leakage
Optional feature for pressure switch and level switch for monitoring of seal leakage
Available with fill connection & nitrogen pressurizing port
Weld-pad level gauge with borosilicate slight glass can be used for visual monitoring of liquid level in thermosyphon pot.
Can be mounted easily on stands with the help of mounting bracket welded on thermosyphon pots.
With seamless design, thermosyphon pots can be used upto 40 bar pressure and temperature upto 200 Deg.C