GESTRA MK 35/31 Instructions De Montage page 8

Usage for the intended purpose
Use steam trap MK 35 only for the discharge of condensed water from
steam lines or for air venting.
Important Safety Note
Installation must only be performed by qualified staff.
Qualified staff are those persons who – through adequate training in
engineering, the use and application of equipment in accordance with
regulations concerning steam systems, and first aid & accident
prevention – have achieved a recognised level of competence
appropriate to the installation and commissioning of this device.