This type of steam traps do not contain any lever inside, only moving part is the oat itself. The oat is made of stainless steel with high surface quality. The dimensional tolerance of the float is very low.

Body and Cover: Cast Steel
Filter and Float: Stainless Steel AISI 304
Body Pressure Class: PN32
Max. Operating Pressure: 25 bar
Max. Operating Temp: 220 °C
ΔP: 4.5 / 10 / 14 bar
Connection: Threaded, Flanged, Weld end

Operation
When trap is cool, the air vent opens wide for continuously discharging initial air. As cold condensate enters the trap, the float rises to allow discharge of condensate from valve port and both air and condensate from orifice.
Once all initial air and cold condensate have been discharged, the equipment which is connected to the steam trap reaches the operation temperature.

In this case, the condensate amount drops but the temperature rises. Steam enters the trap along with conden-sate, hot condensate heats the air vent and closes before steam can escape.

The float can adjust itself according to the condensate flow rate. In order to prevent steam leakage, discharge orifice is always kept under a certain level of water along with metal to metal sealing.

For the cases that condensate discharge is operated from the cylinder driers, a by-pass line above the cover is created with the purpose of preventing the steam lock. The aim of this line is to discharge the steam before the correct timing of steam trap entry.

Advantages
1 - Low cost of installation and equipment
2 - Space saver, compact design
3 - Built in strainer
4 - Homogeneous abrasion on the surfaces
5 - Low failure possibility of single moving part
6 - Low maintenance cost
7 - Well resistance on water hammering