The TKK21 thermostatic steam trap is dedicated to the steam installation draining. With a carbon steel construction, it is available with threaded connections . The Hastelloy capsule is protected by an international patent from the manufacturer . This steam trap is unaffected by back pressure. It permits to regulate a continuous purge and automatically evacuate s the air at start - up. The condensate discharge temperature can be adjusted selecting one of the 3 different cooling capsule s available: 10 °C ( standard set up), 5 °C and 20 °C . It is equipped with a built - in strainer and can be mounted in any position.