Volumetric Seal Pressure Transmitter

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mohsinhamid Commentator Join Date: May 2011 Posts: 91	Volumetric Seal Pressure Transmitter 08/17/2015 11:08 AM
	Dear friends please clarify, do volumetric seal pressure transmitter and diaphragm seal pressure transmitter is same or different. i tried to GOOGLE it but i can't find good answers. if different in which application they are preferred.
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Brave Sir Robin Guru Join Date: May 2007 Location: Annapolis, Maryland Posts: 7808 Good Answers: 449	#1 Re: Volumetric Seal Pressure Transmitter 08/17/2015 12:08 PM
	I think they are the same. The differences may be due to language translation. What is the application?
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Iris Guru Join Date: Jul 2010 Posts: 669 Good Answers: 176	#2 Re: Volumetric Seal Pressure Transmitter 08/17/2015 1:29 PM
	I agree with Sir Robin, it's probably semantics (wording). The issue where the seal's volumetric displacement is critical to operating the device is sometimes where isolator-ring (iso-ring) style seals are used: More on the topic here: http://www.onyxvalve.com/uploads/docs/Process_Gauge_Isolation.pdf But modern transmitters have such small displacement requirement that it isn't clear what they're looking for.
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