>> On Behalf Of Tom Duross
>> Sent: Tuesday, July 17, 2018 8:52 AM
>> To: sprinklerforum@lists.firesprinkler.org
>> Subject: RE: Excessive Vibration of Pressure Relief Valve
>>
>>
>>
>> Have a vi
soon.
Brad
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org]
On Behalf Of Tom Duross
Sent: Tuesday, July 17, 2018 8:52 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Excessive Vibration of Pressure Relief Valve
Have a vibration analysis performed
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Excessive Vibration of Pressure Relief Valve
Have a vibration analysis performed. That will indicate balance, soft foot,
alignment, bearing, even natural frequency as the source. To bad we're so
far away from each other.
From
, July 17, 2018 9:32 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Excessive Vibration of Pressure Relief Valve
Is the drain piping well supported? It would be worth checking to see if the
motor is vibrating the pipe.
Matt
From: Sprinklerforum mailto:sprinklerforum-boun
Is the drain piping well supported? It would be worth checking to see if the
motor is vibrating the pipe.
Matt
From: Sprinklerforum On Behalf
Of Brad Casterline
Sent: Tuesday, July 17, 2018 8:09 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Excessive Vibration of Pressure Relief
A little more info:
I am being told the horizontal and vertical displacement due to vibration is
about 5/8" and that this is unacceptable.
The valve and discharge pipe size is per the chart, not calculated as
allowed.
The arrangement is Valve, flanged 90 looking down, spool piece to
