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La Scala Butterfly - check/one way valve question
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peeteemac
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Joined: 3 Jun 2013
Posts: 9
Location: NZ
Expertise: I love coffee

Posted Fri Jun 7, 2013, 1:26pm
Subject: La Scala Butterfly - check/one way valve question
 

Hi,

I'm rebuilding a La Scala butterfly and lost my original photos I took when doing the dis-assembly.

Can anyone help me with the direction of the one way valves pictured here?

peeteemac: IMG_0455.JPG
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peeteemac
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Joined: 3 Jun 2013
Posts: 9
Location: NZ
Expertise: I love coffee

Posted Fri Jun 7, 2013, 1:28pm
Subject: Re: La Scala Butterfly - check/one way valve question
 

and this one....

peeteemac: IMG_0456.JPG
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SStones
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SStones
Joined: 24 Nov 2012
Posts: 510
Location: Canada
Expertise: Professional

Espresso: Giga 5, ECM Giotto, Rocket...
Grinder: Anfim Milano-Best
Vac Pot: No  :(
Drip: Some $30 thing from Walmart
Roaster: I buy pre-roasted.
Posted Fri Jun 7, 2013, 5:27pm
Subject: Re: La Scala Butterfly - check/one way valve question
 

Water flows in the direction of the arrow.  In the first picture the arrow is easy to see, Water flows from the T fitting to the open end.  I can't see the arrow in the second, but the drawing has a downward arrow.  Is this what your're asking?
I can't tell from the pictures where the various connections lead. In most machines, one of those checks will lead away from that T fitting to the Heat Exchanger injector, the other outlet of the T fitting will be to a solenoid valve (Boiler Fill solenoid) then another check valve and into the steam boiler.
If this is obvious and not what you were asking, sorry.
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peeteemac
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Joined: 3 Jun 2013
Posts: 9
Location: NZ
Expertise: I love coffee

Posted Sat Jun 8, 2013, 9:42pm
Subject: Re: La Scala Butterfly - check/one way valve question
 

Okay, here is the current state of affairs...Im a little stuck :0/

Apologies for the small pic

This is as much as I can do without the pics that I lost on a crashed hard drive.

Roughly left to right

Valve 1 - Flow heading in the direction of the arrow
Valve 2 - Flowing in the same direction
3 - Output/overflow back to the tank?
4 - From left hand side of pump. Is this output?
5 - From right hand side of pump. Is this input from the tank?
6 - Where does that join?

This butterfly was plumbed but Im going to have it temporarily setup with a tank until I get into my new place.

Thanks

peeteemac: butterfly plumb small.jpg
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SStones
Senior Member
SStones
Joined: 24 Nov 2012
Posts: 510
Location: Canada
Expertise: Professional

Espresso: Giga 5, ECM Giotto, Rocket...
Grinder: Anfim Milano-Best
Vac Pot: No  :(
Drip: Some $30 thing from Walmart
Roaster: I buy pre-roasted.
Posted Mon Jun 10, 2013, 3:52am
Subject: Re: La Scala Butterfly - check/one way valve question
 

Yes. Your in from tank is the right side of the pump. The hose with the blue plastic valve on it.
Your "out from pump" hose that is currently not connected should be connected to a T fitting. The other 2 ports of that T fitting will be the check valves with arrows flowing AWAY FROM the pump's connection.
The flowing away connection with the solenoid valve in it (Electrical valve) is the boiler fill and goes to a fitting to fill the steam (Larger portion) area of the boiler.  The other outlet from the T will need to connect to the Heat Exchanger inlet injector. That's that large brassy connection that hangs lowest from the boiler in the left side of the picture. There will be another T on this section of plumbing that that large brass hexagonal thing is connected to. That's your relief valve.
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SStones
Senior Member
SStones
Joined: 24 Nov 2012
Posts: 510
Location: Canada
Expertise: Professional

Espresso: Giga 5, ECM Giotto, Rocket...
Grinder: Anfim Milano-Best
Vac Pot: No  :(
Drip: Some $30 thing from Walmart
Roaster: I buy pre-roasted.
Posted Mon Jun 10, 2013, 3:56am
Subject: Re: La Scala Butterfly - check/one way valve question
 

The more I look at that picture, the more I believe that both of those inline check valves are installed backwards. This is only based on what I imagine I am seeing in this picture, I might be wrong.
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