XnRnXZvLpO zamkon.pl

Operating principles

WZ1 INVERTED BUCKET STEAM TRAPS Operating principles    The WZ steam trap is an inverted bucket steam trap. It operates as the steam or condensate filled bucket inside moves up and down under its own weight, shutting or opening the internal valve. As the valve is placed in the upper portion of the trap it prohibits problems with dirt or contamination.    The internal valve is always immersed in condensate and thus is always isolated from the steam, hence there is no erosion of the valve seat and its life-time is unusually long. The bucket which moves up and down is always immersed in condensate, due to this, this kind of steam trap operates without steam losses. No adjustment or maintenance is required for a WZ inverted bucket steam trap. Carefully constructed and selected for  specific applications, it operates in cycles with a blast discharge action and a shut-down phase. Closing time should take between ten and several tens of seconds. When shut down, the trap should not let through even the smallest quantity of "live" steam. When there is very little condensate, a trace leakage may occur (dripping effect). It means that a small quantity of condensate will flow from the trap (dripping) at the same time there will be a little secondary evaporation shown by small quantities of secondary steam. Operational phases    1. Condensate flows into the steam trap. The bucket et falls down under its own weight opening the internal valve. Both the condensate and air flow out.    2. Steam enters the trap and accumulates under the bucket.  Due to its growing buoyancy the bucket moves upwards closing the internal valve. The trap is shut.  3. The quantity of the condensate trapped under the bucket increases due to the steam condensation effect. The steam cushion gets ever smaller with the bucket's buoyancy being still good enough to keep the bucket in its upper position. The internal valve stays closed.  3. The quantity of the condensate trapped under the bucket increases due to the steam condensation effect. The steam cushion gets ever smaller with the bucket's buoyancy being still good enough to keep the bucket in its upper position. The internal valve stays closed. ________________________ 1 patent RP 164194