WAUKESHA Manuale Inglese AP2 - Asco Pompe Srl

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MaintenanceRelief Cover Option (Vented Cover)The optional Relief Cover Feature (also called VentedCover) is an adjustable, internal by-pass arrangementwhich can be used for control of pressure and/or flow. It isbidirectional; that is the pump flow or rotation can be ineither direction.This option does not provide full flow relief for allpumping situations.The pressure down stream of the pump may increase withincreasing amount of by-pass through the Relief Cover.Actual down stream pressure will depend on pump speed,product viscosity, and the relief set point (springadjustment or air pressure). Avoid high flow rates throughthe cover with high viscosity products. The resultingpressure may be greater than the maximum rating of thepump or other system components. Install a pressuregauge and measure pressure under worst conditions ofmaximum flow and maximum viscosity to determine themaximum pressure for your process. Under anyconditions, if there is a complete flow shut off downstream, stop the pump as soon as possible. Continuedpump operation with the entire flow by-passing willrapidly build heat within the pump body. ContactWaukesha Application Engineering for assistance.Three types of Relief Covers are available:1. Manual3. PistonWaukesha Cherry-Burrell16 15 14 13 1By-pass pressure is adjusted by regulated air or gaspressure, operating on the side of a metal piston (12),opposite the pumped fluid. Extended pressure rangepossible.NOTE: On all types of relief covers, thetemperature and chemical resistance ofthe elastomer diaphragms and O-ringsdetermine the useful range.Buna-N: Material supplied as standardSilicone Rubber: Optional material uponrequestInstallation Adjustment1. Manual12 172 4 7 5 3 6 81By-pass pressure is adjusted by a threaded adjusting screw(2) which compresses a spring (5). Several spring sizesare available, to cover a range of operating pressures.Turn adjusting screw counterclockwise to its farthestposition, then clockwise until light spring pressure is felt.2. PneumaticAdjusting Screw2. Pneumatic11 10 9 1A. Set air/gas pressure to 2-5 PSIGB. Turn on pump.By-pass pressure is adjusted by regulated air or gaspressure, operating on the side of a diaphragm (9) oppositethe pumped fluid.C. With pressure gauge and valve in discharge line:1. Close discharge valve.2. Turn adjusting screw clockwise until desiredrelief pressure registers on gauge. Lockadjusting screw with lock nut.Page 44 95-03015 Revised: February 2007
Waukesha Cherry-Burrell Maintenance3. Open valve in discharge line. Relief cover isset and will open if system pressure exceedspreset limit.D. Without pressure gauge in discharge line:1. Turn adjusting screw clockwise and observeproduct flow at discharge of system.When product flow reaches maximum or desired flowrate, lock adjusting screw with lock nut.3. PistonA. With pressure gauge and valve in discharge line:1. Close discharge valve slowly and observegauge pressure. DO NOT ALLOWPRESSURE TO EXCEED 200 PSI.2. Increase air/gas pressure, until desired reliefpressure registers on gauge. Lock air/gaspressure regulator adjusting screw with locknut.3. Open valve in discharge line. Relief cover isset and will open if system pressure exceedspreset limit.B. Without pressure gauge in discharge line:1. Increase air/gas pressure to relief valve, withregulator, and observe product flow atdischarge of system.When product flow reaches maximum or desired flowrate, lock regulator adjusting screw with lock nut.Revised: February 2007 95-03015 Page 45
Page 1 and 2: Operation and Maintenance ManualUni
Page 3 and 4: Table of ContentsWaukesha Cherry-Bu
Page 5 and 6: Table of Contents324-U2 PD Pumps ..
Page 7 and 8: Waukesha Cherry-Burrell SafetySafet
Page 9 and 10: Waukesha Cherry-BurrellCare of Stai
Page 11 and 12: Waukesha Cherry-Burrell Introductio
Page 17 and 18: Revised: February 2007 95-03015 Pag
Page 19 and 20: Revised: February 2007 95-03015 Pag
Page 21 and 22: Waukesha Cherry-Burrell Installatio
Page 23 and 24: Waukesha Cherry-Burrell Installatio
Page 25: Waukesha Cherry-Burrell Installatio
Page 28 and 29: MaintenanceMaintenance InspectionsW
Page 30 and 31: MaintenanceAnnual MaintenanceWaukes
Page 32 and 33: MaintenanceRemove Rotors1. Using on
Page 34 and 35: MaintenanceReplace Bearing Assembli
Page 36 and 37: .MaintenanceGear Case AssemblyWauke
Page 38 and 39: MaintenanceInstall Rear Seal Assemb
Page 40 and 41: MaintenanceFluid Head AssemblyWauke
Page 42 and 43: MaintenanceInstall Cover1. Clean co
Page 46 and 47: Page 46 95-03015 Revised February 2
Page 90 and 91: Parts ListsWaukesha Cherry-BurrellU
Page 92 and 93: Parts ListsWaukesha Cherry-BurrellU
Page 94 and 95:
Universal II PD Pump Vented CoverPa
Page 96 and 97:
Parts ListsWaukesha Cherry-BurrellT
Page 98 and 99:
Page 98 95-03015 Revised February 2
Page 100 and 101:
TroubleshootingWaukesha Cherry-Burr
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TroubleshootingWaukesha Cherry-Burr
Page 104 and 105:
ATEX CertificationWaukesha Cherry-B
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611 Sugar Creek Road • Delavan, W
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