We recently installed three Clarke diesel drives. Two of the exhausts had to be offset. We did it in the rigid stack above the flexible connector so as to not violate the manufacturer's restriction on doing it with the flexible connector.
J. Scott Mitchell, PE -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Denhardt Sent: Thursday, March 06, 2014 3:24 PM To: '[email protected]' Subject: RE: Diesel pump exhaust flexible HOLD ON - The flexible connector is not for offsets. It is only to be used for isolation and vibration. I have seen these connections fail numerous times when used to handle offsets. Check the manufactures literature! John John August Denhardt, P.E., FSFPE Strickland Fire Protection Incorporated 5113 Berwyn Road College Park, Maryland 20740 Office Telephone Number: 301-474-1136 Mobile Telephone Number: 301-343-1457 FIRE SPRINKLERS SAVE LIVES - Can you live without them? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Autry Sent: Thursday, March 06, 2014 4:16 PM To: [email protected] Subject: RE: Diesel pump exhaust flexible Every diesel I've done always had a flex connection between the engine and the muffler. David Autry Meininger Fire Protection Inc. 2521 W L St. Suite No.4 Lincoln, Ne 68522 Voice (402) 466-2616 Fax (402) 466-2617 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, March 06, 2014 3:08 PM To: [email protected]; [email protected] Subject: RE: Diesel pump exhaust flexible There's nothing to prohibit the use since it's a requirement to isolate engine vibration from the structure. Craig L. Prahl, CET Fire Protection Group Lead CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29303 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Spencer Allen Sent: Thursday, March 06, 2014 3:43 PM To: FORUM Subject: Diesel pump exhaust flexible Is there anything in NFPA 20 (or any other related code) which prohibits the use of the flexible connector on a diesel pump exhaust taking up misalignment between the outlet of the engine and the exhaust riser? I think it's bad practice but I would like a reference or code to back up my thoughts. Thanks Spencer Sprinkler Designer _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.o rg _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.o rg _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
