10 – BOLT
HEATING ELEMENT
The screws to fix the heating element to brass ring
make their appearance in 1980.
Before then, the heating element was screwed directly on the boiler.
Are of two types: long in the case of copper element, which has the board more
often, shorter in the case of steel
element, that has the thin edge.
|
TYPE |
FEATURES |
START PRODUCTION |
END PRODUCTION |
MATERIAL |
WEIGHT |
DIMENSIONS |
AVAILABLE |
|
|
|
|
LONG BOLT with partial
thread |
1980 |
1987 |
steel |
4 gr |
2,7 cm x 0,8 cm |
no |
|
|
|
LONG BOLT with total thread |
1988 |
1990 |
steel |
4 gr |
2,7 cm x 0,8 cm |
no |
|
|
|
LONG BOLT with total thread |
1991 |
1996 |
steel |
4 gr |
2,7 cm x 0,8 cm |
no |
|
|
|
SHORT BOLT |
1997 |
now |
steel |
4 gr |
2,2 cm x 0,8 cm |
yes |
