[Clas12_rich] Fwd: Re: RICH Pressure Relief Valves

[George Jacobs]

In order to simplify procurement I would recommend the following ASME 
air tank in place of the one listed;

McMaster Carr part # 9554K71
http://www.mcmaster.com/#9554k71/=12jwvqh

I have attached pdf of tank.

George

On 5/24/2016 2:48 PM, Saptarshi Mandal wrote:
>
>
>
> -------- Forwarded Message --------
> Subject: 	Re: RICH Pressure Relief Valves
> Date: 	Tue, 24 May 2016 08:04:08 +0200
> From: 	Tomassini Sandro <sandro.tomassini at lnf.infn.it>
> To: 	Saptarshi Mandal <mandal at jlab.org>
> CC: 	Mirazita Marco <marco.mirazita at lnf.infn.it>, 
> vincenzo.lucherini at lnf.infn.it, dario.orecchini at gmail.com
>
>
>
> Hi Saptarshi,
>
> attached this mail you can find the tank datasheet. The allowable 
> working pressure of the tank  is 11.5 bar.
>
> Please refer to the compressor datasheet attached to this e-mail, as 
> you can see the pressure are expressed as absolute values
>
> *Pressione operativa*
>
> 	
>
> *bar(g)*
>
> 	
>
> *7*
>
> *Working limits
> ***
>
> Operative pressure – max
>
> 	
>
> *bar(g)*
>
> 	
>
> *7,75*
>
> Operative pressure – min
>
> 	
>
> *bar(g)*
>
> 	
>
> *4*
>
>
>
> Many thanks
> Sandro
>
> P.S. The numbers that refer to the allowable pressure and working 
> pressure are compliant to the Italian standard, we want to purchase 
> the compressor, the tank and all the relative equipments in US so my 
> doubt is that numbers might change a bit. In any case you can chech on 
> the Atlas  site 
> http://www.atlascopco.us/usus/products/air-and-gas-compressors/1473291/1516773/
>
> Il 23/05/2016 22:48, Saptarshi Mandal ha scritto:
>> Dario,
>>
>> Thanks for the response. I'll also need the maximum allowable working 
>> pressure in the tank, as in what pressure is the tank capable of 
>> withstanding. The relief valve set point will have to be based on 
>> that pressure.
>> Also is the 8 bar, gauge pressure or absolute pressure ?
>>
>> Thanks.
>> Saptarshi
>>
>> On 5/23/2016 3:58 PM, Tomassini Sandro wrote:
>>> Hi Saptarshi,
>>> The max pressure in the tank is 8 bar. It is an european standard.
>>>
>>> The max flow rate from the compressor to the tank is 20litres/sec 
>>> for each compressor (we have two of them)
>>>
>>> Max pressure in the pipe from the regulator to the rich 5 bar (we 
>>> can discuss if it is a problem)
>>>
>>> Max flow rate in the pipe from the regulator to the rich 400 
>>> liters/minute
>>>
>>> For any doubt do not hesitate to contact me.
>>>
>>> Many thanks
>>> Sandro
>>>
>>> Dr Eng. S. Tomassini
>>>
>>> Il 23/mag/2016 14:29 Saptarshi Mandal <mandal at jlab.org> ha scritto:
>>>> Sandro,
>>>>
>>>> Marco mentioned that you were working on the cooling system for the
>>>> RICH. I was told to look into evaluating the relief valves that 
>>>> will be
>>>> put into the system. In order to do that, could you please send me
>>>> information on the following:
>>>>
>>>> 1. Maximum allowable working pressure in the air tank
>>>> 2. Maximum flow rate from the compressor to the air tank
>>>> 3. Maximum allowable pressure in the pipes that go from the pressure
>>>> regulator to the RICH detector
>>>> 4. Maximum flow rate in the pipes from regulator to the RICH detector
>>>>
>>>> Thanks.
>>
>
>
> -- 
> -----------------------------------------
> Dr. Eng. Sandro Tomassini
> Istituto Nazionale di Fisica Nucleare
> Laboratori Nazionali di Frascati
> ---Research Division---
> P.O.Box 13 00044 Frascati (RM) Italy
> Tel. office: +39 06 9403 2919/8089
> Fax: +39 06 94032256
> e-mail:sandro.tomassini at lnf.infn.it
> http://www.lnf.infn.it/
> -----------------------------------------
> -- 
>
>
>
>
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-- 
George Jacobs
Jefferson Lab (TJNAF)
STE 12
12000 Jefferson Ave.
Newport News, VA 23606

(office) 757-269-7115

(cell)   757-876-0480

(email) jacobsg at jlab.org

(website) https://userweb.jlab.org/~jacobsg

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