Valve Maintenance and Line Blow

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Don103 Member Join Date: Feb 2009 Location: Minneasota Posts: 8	Valve Maintenance and Line Blow 02/03/2009 12:58 PM
	What is the safest way to blow out the air lines prior to servicing a valve when it has a regulator or solenoid? I.E...Should these components be protected from the line blow?
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Bricktop Guru Join Date: Mar 2008 Location: The People's Republic of Massachusetts Posts: 1946 Good Answers: 73	#1 Re: Valve Maintenance and Line Blow 02/03/2009 2:51 PM
	Don't worry about the solenoid, but you can definitely destroy the regulator. Total isolation is your best bet. Don't count on the Safety valve: for isolation. They are sometimes "one way", (I learned that the hard way). __________________ I go into every human encounter expecting to be framed for a crime I didn't commit. Dilbert, 2013
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Don103 Member Join Date: Feb 2009 Location: Minneasota Posts: 8	#2 In reply to #1 Re: Valve Maintenance and Line Blow 02/03/2009 3:32 PM
	Thanks for the response Brick. The Solenoid... won't get pitted if there is debris in the air lines? If it does get pitted is that a big deal. I have about 30 Solenoids in the system that I was planning on bypassing, but that would save me lots of time if I could blow through them and isolate the air to atmosphere before the actuator or i.e. regulator and positioning device.
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Bricktop Guru Join Date: Mar 2008 Location: The People's Republic of Massachusetts Posts: 1946 Good Answers: 73	#3 In reply to #2 Re: Valve Maintenance and Line Blow 02/03/2009 4:59 PM
	I've never had a problem, (for 35 years anyway), blowing out thru a solenoid, butterfly or port valve. Just stay away from the regulator, as if it sees shop air, it WILL be damaged. Of course, you have a filter before your blower, so any crud in the line will be very fine. Wear a respirator, and eye protection. __________________ I go into every human encounter expecting to be framed for a crime I didn't commit. Dilbert, 2013
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