• Sigma Instruments Company

Condensate Pot / Seal Pot

Condensate Pot are used to catch and hold condensate and foreign material. This helps keep manifold orifices clean and free of foreign material. They are located upstream of the instrument and have a bottom drain so that they may be cleaned. The condensate pots are available in a range of materials. Installation can be either vertical or horizontal lines between primary (Flow Meter) and the secondary (transmitter/ gauge) to act as a barrier to the line fluid permitting direct sensing of the flow conditions. Units should be mounted at the same level minimizing possible error that could arise due to unequal head of fluid in the connecting pressure lines. Seal Pots (sometimes called condensate pots) are used to allow a liquid seal between the instrument and flowing gases such as steam. Their function is to keep the liquid level constant in the impulse tubes. For example, in boiler liquid level applications the high pressure (HP) side of a differential pressure transmitter is connected to the vapor space on top of the steam drum. Steam condenses in the chamber or seal pot and fills the impulse line with condensate. The seal pot is located to allow the condensate to drain back to the source thus keeping the liquid level constant. Seal and Condensate chambers are considered to have the same pressure rating as ASTM 106 Gr.B pipe of the same thickness. This pressure varies depending on the location and code being used. Unless otherwise specified, 50 bar is a minimum rating provided. Temperature rating will depend on material selected & working pressure as per pipe standards.