[Dsg-rtpc] RELIEF VALVE, ORIFICE AND REGULATOR RECOMMENDATIONS

[George Jacobs]

Hi Bill,

We will be ready to perform the pressure test once I find a calibrated test gage in the right range.

Cheers,
George


--
George Jacobs
Jefferson Lab (TJNAF)
STE 12
12000 Jefferson Ave.
Newport News, VA 23606
(office) 757-269-7021
(cell)   757-876-0480
(email) jacobsg at jlab.org


________________________________
From: Bill Crahen <wcrahen at jlab.org>
Sent: Thursday, May 9, 2019 10:09 AM
To: George Jacobs
Cc: Kuhn, Sebastian E.; Bob Miller
Subject: RELIEF VALVE, ORIFICE AND REGULATOR RECOMMENDATIONS

George, If you put an Okeefe G-5-SS (.005" dia) orifice in front of the
regulator, a McMaster Carr 48435K72 ( 1/4 npt) or 48435K71 (1/8 npt)
relief valve with a 25 psig +/- 4% set point  and a Matheson SEQ3120A580
dual stage 0-15 psig regulator, I think you will have a system that
should be rock solid at the set pressure and will not leak through the
relief (silicone seals on relief).

That being said, the test pressure can be 30 psig (relief on the test
supply 40-50). The only portion that needs to be pressurized is shown in
the attached image.


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