Application
Heat exchangers, dryers, unit heaters, sterilizers and other applications, where condensate must be removed immediately.
| ES | Cast Iron Inverted Bucket Steam Traps for small up to medium condensate loads |
| ESU | Stainless Steel Inverted Bucket Steam Traps for small up to medium condensate loads |
| ER | Cast Iron Inverted Bucket Steam Traps for medium up to high condensate loads |
| ESH, ER25 | Cast Steel Inverted Bucket Steam Traps for high pressure and small up to high condensate loads |
Features
| Equipped with stainless steel wear and corrosion resistant lever, valve and seat system for long service life |
| All valves and seats are lapped together |
| Traps of the series ER contain the patented SCCV® (Self Closing and Centering Valve) – which increases the lifetime of the valve and seat substantially |
| A small hole in the top of the bucket secures continuous automatic air venting |
| All traps are designed for quick and easy inline repairability |
| Withstands high back pressure (up to 90%) |
Operation
| 1) On start-up the bucket is down and the valve is open. Low temperature condensate and air, later high temperature condensate enter the trap. The condensate fills the bucket and the trap body completely. As the bucket is completely submerged in the water, it lies on the bottom of the trap, the valve is wide open and condensate will discharge. |
| 2) Steam enters the trap under the bottom of the bucket. The more steam is entering the trap, the more it collects at the top of the bucket, causing the bucket to move upwards (buoyancy of the bucket inside the water). At the top position of the bucket the valve will close the seat. |
| 3) Air and gases pass through a small hole in the top of the bucket and collect at the top of the trap. Steam is also passing through the hole and condensing. When more condensate is entering the trap, the bucket will loose its buoyancy and will move down. The valve will open and condensate will discharge. |
