CPVC ball valve

[firefly765]

I've noticed people making mash tuns are using brass or SS ball valves. could you just keep it all CPVC with a valve like this?
http://www.acehardwareoutlet.com/(t...tdetails.aspx?sku=998060153&source=GoogleBase

 

[SpanishCastleAle]

Depends on how hot you plan on getting it. CPVC is good for warm to semi-hot liquids (mash temps) but once you get up near boiling it softens too much ime. It also won't like too much UV light or it can get brittle over time. Be careful about over-tightening if you get threaded valves, the end pieces can split. Then one good bump and it might damage the valve (or split an end piece that you won't notice until it starts leaking mid-brew). I'd just use the stainless valves, it only hurts once.

 

[AnOldUR]

Early on I had a Rubbermaid MLT with a plastic ball valve. Never had any of the issues mentioned by SpanishCastle. Worked fine.

 

[ibrewit]

CPVC has a working temperature range up to 200F. PVC's working temp only goes to 140F.

 

[SpanishCastleAle]

Early on I had a Rubbermaid MLT with a plastic ball valve. Never had any of the issues mentioned by SpanishCastle. Worked fine.

Ah but you had a plastic mash tun, that right there limits the temp the valve would ever see. OP didn't say what the mash tun was and I didn't want to assume. It probably is a cooler though in which case it should work OK.

 

[-TH-]

I have a CPVC ball valve on my cooler MLT (with CPVC manifold) that I've used for a dozen or so batches now and it works great.

 

[firefly765]

OK, just got back from Home Deopt and seems like I'm running into a logistical nightmare. How do you guys attach the bulkhead / throughpipe to the manifold?

 

[archiefl98]

FlyGuy lays out the parts required here:

Cheap & Easy 10 Gallon Rubbermaid MLT

I used a brass hose barb on the inside of the nipple and then zip-tied my braid to that. Others use all-stainless clamps.

 

[nostalgia]

CPVC has a working temperature range up to 200F. PVC's working temp only goes to 140F.

Which I've always thought was interesting - aren't our insulated coolers all PVC on the inside?

-Joe

 

[ibrewit]

Pretty sure most cooler liners are HDPE; which is good up to 230F...I think.

 

[nostalgia]

Whoops, you're right, my mistake. From Igloo's website:

The exterior of Igloo hard-sided coolers is made of high-density polyethylene, while the interior liner is made of polypropylene.

-Joe