Plywood on Pex to Wheelbarrow Concrete

Re: Plywood on Pex to Wheelbarrow Concrete

PostBy: jim d On: Sat May 19, 2012 9:50 pm

i would only go to 30# thats what the boiler relief will be set at and 21/2 to 3 times te working pressure
jim d
 
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Re: Plywood on Pex to Wheelbarrow Concrete

PostBy: grumpy On: Sat May 19, 2012 10:14 pm

I'm not going to have time to reduce the pressure and I mentioned that to him and he said he wanted air, since I have been pushing him on other things I will not push this. I see some good points to it but also see some bad. It will be fine, he has done a good job, it has taken twice as long as expected and he didn't break the house.

He gave me what I wanted for the pour so I'll give him this. What I may do is hook the compressor up so there is lots of air that won't run out.. I'll keep it at 12 psi or so.


Almost done, get the floor poured and a few days later get the Bilco door in, that's another job. Then I'm done, he will come back and back fill clean up and its over. Then My work will start. Wondering if I should go from a 33 gal pressure tank to a 44 or keep it the same.


All input is welcome so let me have it..
grumpy
 

Re: Plywood on Pex to Wheelbarrow Concrete

PostBy: steamup On: Sat May 19, 2012 10:29 pm

grumpy wrote:Will this be safe? I cannot find what the max working pressure is for my Rifeng Manifold, will it take 60 PSI ?



It should be able to handle it no problem, especially cold water. online data says good for 1Mpa (mega pascal) or about 145 psi.
steamup
 
Stoker Coal Boiler: Axeman-Anderson AA-130, Keystoker K-6
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Re: Plywood on Pex to Wheelbarrow Concrete

PostBy: grumpy On: Sat May 19, 2012 10:30 pm

Let me add, In trying to figure out what it will take I see in the Manuel it says.. Pressure test 1.1MPa, 90C 1 Hour and Blasting test 2.4 MPa, 23 C, 2min.

Trying to find this on the net and there web site, no luck, Greek to me, anyone?
grumpy
 

Re: Plywood on Pex to Wheelbarrow Concrete

PostBy: grumpy On: Sat May 19, 2012 10:34 pm

steamup wrote:
grumpy wrote:Will this be safe? I cannot find what the max working pressure is for my Rifeng Manifold, will it take 60 PSI ?



It should be able to handle it no problem, especially cold water. online data says good for 1Mpa (mega pascal) or about 145 psi.



Wow you beat me too it, so 145 would be ok, so then what, if it leaks I want to know big time, so maybe 30 psi, don't want to blow up the gauge.

Can anyone tell I'm a bit nerves.. lol
grumpy
 

Re: Plywood on Pex to Wheelbarrow Concrete

PostBy: steamup On: Mon May 21, 2012 10:56 am

grumpy wrote:
steamup wrote:
grumpy wrote:Will this be safe? I cannot find what the max working pressure is for my Rifeng Manifold, will it take 60 PSI ?



It should be able to handle it no problem, especially cold water. online data says good for 1Mpa (mega pascal) or about 145 psi.



Wow you beat me too it, so 145 would be ok, so then what, if it leaks I want to know big time, so maybe 30 psi, don't want to blow up the gauge.

Can anyone tell I'm a bit nerves.. lol



I would isolate any device not capable of test pressure, including the boiler. If the pressure gauge only goes to 30 psi, then it should be removed and a temporary gauge installed.

I would test to 1.5 times working pressure or at least 45 psi. Pressurize the system, valve off, and hold for about 1 hour. If no pressure drop, then test ok.
steamup
 
Stoker Coal Boiler: Axeman-Anderson AA-130, Keystoker K-6
Hand Fed Coal Boiler: HS Tarm 502 Wood/Coal/Oil
Coal Size/Type: pea, buck, rice

Re: Plywood on Pex to Wheelbarrow Concrete

PostBy: grumpy On: Mon May 21, 2012 6:22 pm

It's been holding fine all week, I did however hook my compressor up to it and bumped it up to 45, so far so good. The pour has been postponed until Wednesday.
grumpy