Probably the most used pressure switch used on the Asco P302/6 a 3 phase pressure switch. This pressure switch has been used espresso machines like: La Marzocco, Faema, Cimbali, Astoria, Wega, Nuova Simonelli, La Spaziale, San Remo and so on.The brand Asco used to be the company Sirai, since a while this name has changed but the product remains the same.
This pressure switch is a 3 pole 30A pressure switch. The pressure can be adjusted between 0.5 and 1,4bar. The maximal fluid temperature is 140 °C. the maximum contact load is with 220V 7kw (30A)
The connection for the pressure is a ¼” BSP-G with a pipe 4x6 mm
The principle of a spring actuated pressure switch is that when the boiler pressure raises, a membrane goes up and when it reaches the set pressure the contacts will disconnect. This results that there goes no power to the heating element anymore. When the pressure in the boiler lowers the contacts will connect again and the heating procedure starts over again.
For more information about the working of pressure switches, go to our blog page and you will find a article about pressure switches.
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.
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The P203T01 is also manufactured by the company Asco, in the past the name of these pressure switches was Sirai. This name change happened for all the products of Sirai. This Asco Pressure switch is a 2 pole instead of a 3 pole pressure switch. With a full plastic cover.
This pressure switch has been used espresso machines like: La Pavoni, Rocket and La...
The P303T01 a more lightweight 3 phase pressure switch then the Asco P302/6 3 phase pressure switch. The difference is also that the P302/6 has a partially metal cover. And the P303T01 has a full plastic cover.
This pressure switch has been used espresso machines like: Bianchi, Fiamma and Orchestrale.Nowadays these pressure switches are named Asco, in...
The pressure switch on this page is the Asco P203T02, Asco used to be the company Sirai.
This pressure switch is a 2 poles 20A model. The connection at the bottom is a ¼” M ISO 228 G with a tube connection of 4x6mm. The switch itself is CE-cURus approved. The pressure switch has a adjustable pressure range of 0,9 – 1,7 bar. The...
The pressure switch on this page is specifically used on the Rancilio Classe 5 espresso machines. This specific model of pressure switch is made by the Italian company Asco/Sirai and it is the model P302/6. The Rancilio part reference number for this pressure switch is 34200356.
This pressure switch has CE and UL approval. It has a adjustable...
The pressure switch ont his product page is made by the Italian company Ma-ter. This model is called the Ma-ter XP700. This pressure switch can be used on various Fiorenzato espresso machine models. The Fiorenzato part reference number for this pressure switch is A2100305.
This pressure switch has as a connection a ¼”BSP-G thread. The switch itself can be...
The P203T01 is also manufactured by the company Asco, in the past the name of these pressure switches was Sirai. This name change happened for all the products of Sirai. This Asco Pressure switch is a 2 pole instead of a 3 pole pressure switch. With a full plastic cover.
This pressure switch has been used espresso machines like: La Pavoni, Rocket and La...
Most espresso machines use a analogue pressure switch, made by Asco(Sirai), Parker or Ma-ter. But the La Cimbali group has used for some of it’s espresso machines a pressure sensor. This pressure sensor is used on various Cimbali and Faema espresso machines. The La Cimbali part references are 537046900 and 537-046-900. For Faema the references...
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This diaphragm is used in the Cimbali pressure switch 537-030-700. Over time...
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This kit is made up out of 3 items, the wiring loom, the relay and the pressure switch. The Pressure switch is a Ma-ter C110P which has been set at 2,3bar and is rated up to 15A at...
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This pressure switch has a male connection of ¼”. The switch is fixed at 1,4 bar and it is rated at 16A at 250V. This switch has been made in Italy.
