HUMMEL DESIGN TECHNIK

Metal by-pass pipes for rigid pipework; gas release valves or venting valves mainly made of metal (but not including machine parts); metal dummy seals for tubes or pipes; metal closure caps (seals) for tubes

Reinforcements for heating installations, in particular components or parts for tube connectors adapted to connect heating elements to heating pipes, also comprising stop valves, thermostatic valves as heating installation components; drain devices as component parts of heating elements or heating installations with a seal that can be opened, gas release valves or venting valves for heating elements or heating installations; dummy seals for heating elements; closure caps for heating elements with integrated ventilation flap; locking, draining and ventilating armatures for heating elements or heating installations

Closure caps (seals) for tubes made of synthetic materials; dummy seals for tubes made of synthetic materials