Capsule steam trap
Capsule steam traps are one type of steam traps , and serve to dehydration of water vapor .
function
Capsule condensate drains use a regulating membrane to automatically open when condensate accumulates and to close again when the condensate has been drained . A thermocouple is located in a capsule that protects against pressure surges. Its boiling point curve is slightly below that of water. Thus, it expands and closes at temperatures at which the arrester befindliches fluid in the gaseous state of aggregation is. The membrane opens at a temperature at which the fluid in the trap is in the liquid state, allows it to flow out due to the overpressure in the line and closes with a slight delay as soon as subsequent steam flows through the trap.
Applications
Compared to other trap types, capsule steam traps can be manufactured inexpensively and particularly compactly. You will therefore find u. a. Use in air conditioning , heat tracing and heaters. Due to the self-cleaning effect of the flow through the condensate drain, capsule drains are particularly insensitive to contamination of the fluid compared to other drains.
Others
Capsule steam traps act as a start-up vent when starting up a system . Fast venting cycles are an indication of a faulty capsule trap. Since the capsule with the thermocouple is subject to wear and tear and ages, some capsule condensate drains are designed in such a way that they remain open in the event of a failure to avoid system malfunctions. Due to the associated extraordinary loss of energy, regular maintenance is essential.
Web links
- Functions with illustrations (PDF; 1.3 MB)