o ring gasket 7,2X1,9mm nbr

Well that answer is pretty simple, no it isn’t. The original valve works as following, when you turn the shaft inwards the valve pin will push a gasket holder. The steam can go out, close it again and no steam can go out. In the case of the modern E61 valves is that behind the gasket holder is a small stainless steel ball with a spring.

From the beginning of the Faema E61 brewing group are basically no differences between the parts installed inside the brewing group. Parts such as the valve gaskets, springs, valve assemblies and portafilters have all remained the same. The biggest change is the small cleaning hole on the front of the brewing group. With the earliest models this hole didn´t exist.

There are 5 types of boiler used on the Faema E61 espresso machine. The most well known is the double flanged model. You have on one side the heating element flange and on the other side the water level flange, both are out of production. These are held in place with aluminium boiler rings. For the single groups you have a boiler with a flange on one side.

The next model is a stainless steel boiler, with one flange. This type of boiler is less common then the copper boiler above. There is also a later model stainless steel, which doesn’t have a removable flange. Both these boilers have corrosion issues, this has to do because of the stainless steel.

The latest model is also a copper boiler, this boiler has a single heat exchanger(HX) in the middle. Most modern espresso machines have for each individual brewing group a individual HX.

Yes it is, but this depends on various factors. The first thing is experience, seen this is a manual operated espresso machine it requires a lot more attention from the barista then a solenoid operated model. There you need to stop the brewing process manually. If you don’t have the experience you probably can’t hold up with the tempo which is required at such a bar. Then I would advice to go for the Faema E61 Jubilee, this is the solenoid operated version of the Faema E61 Legend espresso machine.

We would not advice to do so, seen the capacity is too little to proper function in a bar or a restaurant. For a small office this espresso machine would be a good solution, as well as the use in a kitchen.

Well this does depend on how old your Bezzera BZ10 is. Seen you have 2 model versions. There is a pre- 26-06-2010 and a post 27-05-2010 version. The older type is in it’s original configuration isn’t available anymore, for this is a relay rebuild kit available which is the same as the new model.

This model of Bezzera espresso machine is fitted with a solenoid operated Bezzera ring brewing group, so it hasn’t been fitted with a E61 style of brewing group.

The Bezzera BZ10 espresso machine is fitted with a water tank, from this tank the water is pumped, with a Ulka vibration pump, towards the brewing group and into the boiler. So you won’t be able to fit a main water connection to this espresso machine.

The Bezzera BZ10 has been fitted with a double scale pressure gauge, or manometer. So you will see 2 needles, one is for the pump pressure and the other is for the boiler pressure. The boiler pressure goes from 0 up to 3 bar and the pump pressure goes from 0 up to 16 bar.