http://support.asepco.com/activekb en-us http://support.asepco.com/activekb ActiveKB NX activekb@asepco.com Fri, 18 May 2012 16:48:28 CDT 20 http://support.asepco.com/activekb/questions/112/ http://support.asepco.com/activekb/questions/112/ The Formula is:Q = C * √ΔPQ = desired flowC = valve flow rate (from table below)ΔP = psiExample:For a 3" valve C = 170 gpm at 1 psiLet's say that you want to know what the flow r ... Mark Embury Thu, 13 Aug 2009 07:51:42 CDT http://support.asepco.com/activekb/questions/70/ http://support.asepco.com/activekb/questions/70/ There are many different ways for a diaphragm to fail from mis-handling to aging to chemical incompatibility. The majority of diaphragm failures are related to aging or chemical incompatibility. ... Mark Embury Fri, 03 Dec 2010 17:17:39 CST http://support.asepco.com/activekb/questions/138/ http://support.asepco.com/activekb/questions/138/ The primary difference is chemical resistance.EPDM is good in steam applications and has fair chemical resistance. It should not be used with solvents or petroleum agents.Viton has excellent chem ... Mark Embury Tue, 25 Oct 2011 00:52:47 CDT http://support.asepco.com/activekb/questions/8/ http://support.asepco.com/activekb/questions/8/ A "dead leg" is a sump, or area of entrapment, in a vessel or a piping system where contamination can occur. Dead legs take longer to flush out during CIP, extending rinsing cycles, creating "co ... Denny Brown Tue, 26 Apr 2011 19:16:13 CDT http://support.asepco.com/activekb/questions/18/ http://support.asepco.com/activekb/questions/18/ ASEPCO Radial Diaphragm Valves are designed for a working pressure of 250 PSI in all sizes. You have asked for a temperature rating 300° F. As far as the effect of temperature on 316L s ... Mark Embury Fri, 18 May 2007 08:39:55 CDT http://support.asepco.com/activekb/questions/27/ http://support.asepco.com/activekb/questions/27/ ASEPCO valve flow rates by size at 1 psi pressure drop: 0.5" 02.8 gallons per minute (gpm) 10.6 liters per minute (lpm) 1.0" 15.8 gallons per minute (gpm) 60 liters per ... Mark Embury Wed, 14 Nov 2007 09:21:04 CST http://support.asepco.com/activekb/questions/25/ http://support.asepco.com/activekb/questions/25/ The basic formula for conversion from microinch to micron (micrometer): 1 microinch = 0.0254 micrometer 1 micron = 39.4 microinches Some common finishes: 10 microinch Ra = .2 ... Mark Embury Tue, 25 Oct 2011 00:55:42 CDT http://support.asepco.com/activekb/questions/50/ http://support.asepco.com/activekb/questions/50/ We believe that Teflon has sealing issues due to "cold flow" in the material that makes it a poor sealing material for our valves.We do offer diaphragms that have a surface treatment that gives ... Mark Embury Mon, 23 Jul 2007 16:19:58 CDT http://support.asepco.com/activekb/questions/62/ http://support.asepco.com/activekb/questions/62/ The recommended torque specification for the Hygienic clamps used to assemble actuator/diaphragm assemblies to our valves is 25 in/lb. Mark Embury Thu, 28 Jun 2007 17:30:40 CDT http://support.asepco.com/activekb/questions/57/ http://support.asepco.com/activekb/questions/57/ We have found that the majority of the time a user is having sealing issues is due to incorrect diaphragm installation. Attached are instructions that come with each diaphragm, make sure they h ... Mark Embury Wed, 22 Aug 2007 00:14:25 CDT