String Test of Pump

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harenathjha Participant Join Date: Jul 2010 Posts: 1	String Test of Pump 07/31/2013 11:15 PM
	Hello, I want to know about the string test of pump. (BFP). Please share in details and also tell me for the same which code has to be reffred.
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SolarEagle Guru Join Date: Mar 2007 Location: by the beach in Florida Posts: 33392 Good Answers: 1817	#1 Re: String test of Pump 07/31/2013 11:19 PM
	No pump.....dump __________________ All living things seek to control their own destiny....this is the purpose of life
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IdeaSmith Guru Join Date: Mar 2012 Location: Out of your mind! Not in sight! Posts: 4424 Good Answers: 108	#2 Re: String test of Pump 08/01/2013 1:25 AM
	Some Base points: - GOOGLE is your friend! - String test Q - What is a string test? A - A string test refers to the testing of the complete pump package, including the contract driver, baseplate, seal flush system including any oil pots or lube system for dual seals, and bearing forced-feed lube system, if applicable. A string test may also include the contract piping, instrumentation, gearbox, or variable-drive, if specified by the customer. The vibration acceptance criteria for string test should be negotiated and agreed upon between the vendor and customer because of difficulty compensating for factors such as testing on an ungrouted baseplate at the test facility that would be grouted in the field, or the use of contract vibration monitors that do not allow for filtered readings at discreet frequencies. Taken from here - The code will be the code under which the pumps have to be installed. __________________ Common Sense Dictates
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#3 In reply to #2 Re: String test of Pump 08/01/2013 10:59 AM
	String test equipment, prior to the test. Best to use biodegradable type equipment.
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old salt Guru Join Date: Feb 2007 Location: Stronger Than The Storm Posts: 2394 Good Answers: 203	#4 Re: String Test of Pump 08/13/2013 5:40 PM
	BFP is: Instead of using short nipples use a very long string of pipe, minimum of 67.3 ft. Pipe can vary in diameter (size) from 1/4"pnt to 48"x 0.875" wall. 1/8" not acceptable because it doesn't come in 21' lengths. Procedure is to connect 20gpm pump to one end with only 2 joints, operate at 10gpm, measure the horizontal distance from the discharge (other) end of the pipe to the horizontal flow at a height of 2' below the discharge end of the pipe (weir angle). The result is the string test. Details available at SPI #1303, chapter 56, section 3. Good Luck, Old Salt __________________ Any day on the green side of the grass is a GREAT DAY!, --- me +++++++++. I believe creativity is an inherent part of everyone. --- Kermit T. Frog
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IdeaSmith (1); lyn (1); old salt (1); SolarEagle (1)

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