Leaktight thermocouple for electromagnetic safety device, in particular for gas water heaters or boilers

摘要

The leaktightness of the thermocouple with respect to penetration of air into the outer tube 4 is reinforced at the surface contact between the flared flange 5 and the insulating washer 6 as well as between the latter and the contact block 2 of the rear part, by injecting a sealing material which fills the space 9 between the outer tube and the conducting wire of the rear part and another which also covers the solder of the front part. Application to electromagnetic safety devices for gas boilers. IMAGE