Espresso machine safety valves 
What kind of knock boxes are available? 
Faema E61 espresso machine Portafilter spring
Portafilter spring
There are 6 products.When you are using your portafilter you don´t want when you knock out the old coffee puck into the knockbox that your filter basket falls out of it. For this reason a simple solution was found.
Machine a small edge on the inside of the of the portafilter for a stainless steel spring which holds the portafilter in place. There are various models of springs. The stainless steel wire used has a diameter between the 1 and 1,4mm. The most common size is the 3 sides, but you do also have a 5 sided version.
The only disadvantage is that the removal of the filterbasket for cleaning becomes a bit more difficult. For that reason there are various tools available to remove the filterbasket easily.
Filterbasket spring 1,2mm 3 sides straight
To hold a coffee filterbasket in it’s place there is always a spring installed in the portafilter. In each modern portafilter is a recess machines to accommodate such a spring. You can use spring on brands such as Casadio, Carimali, San Remo, Bezzera, Cimbali, Astoria, Spaziale This spring is made from stainless steel. The cord diameter is 1,2mm....
Filterbasket spring 1,2mm 5 sides straight
To hold a coffee filterbasket in it’s place there is always a spring installed in the portafilter. In each modern portafilter is a recess machines to accommodate such a spring. This spring is made from stainless steel. The cord diameter is 1,2mm. this spring has 5 flat sides. The spring is made in Italy.
Filterbasket spring 1,0mm 3 sides straight
To hold a coffee filterbasket in it’s place there is always a spring installed in the portafilter. In each modern portafilter is a recess machines to accommodate such a spring. The type on this product page can be used on brands such as Carimali, Casadio, San Marco, San Remo, Vibiemme, Bezzera, Cimbali, Grimac, Faema, Astoria, Nuova Simonelli,...
Filterbasket spring 1,4mm 3 sides straight
To hold a coffee filterbasket in it’s place there is always a spring installed in the portafilter. In each modern portafilter is a recess machines to accommodate such a spring. The type on this product page can be used on brands such as Casadio, Carimali, Scala, Cimbali and Rancilio. This spring is made from stainless steel. The cord diameter is...
Filterbasket spring 1,4mm 3 sides straight
To hold a coffee filterbasket in it’s place there is always a spring installed in the portafilter. In each modern portafilter is a recess machines to accommodate such a spring. You can use spring on brands such as Astoria, Carimali and Wega. Note: only for the smaller size portafilters which are for instance used on the Wega Concept, Astoria Sabrina...
Filterbasket spring 1,3mm 3 sides
To hold a coffee filterbasket in it’s place there is always a spring installed in the portafilter. In each modern portafilter is a recess machines to accommodate such a spring. The type on this product page can be used on brands such as Casadio, Carimali, Scala, Cimbali and Rancilio. This spring is made from stainless steel. The cord diameter is...
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