[Clas12_rich] Fwd: Re: RICH Pressure Relief Valves

Tue May 24 14:48:31 EDT 2016

-------- 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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