BERKELEY care manual

1 BERKELEY care ON OFF H 806H 8062 Table of conTenTsThis care manual was designed as a general guide to BERKELEY centrifugal pumps and is not intended to be used as an Engineering Specifications subjects covered, whether written or illustrated, are suggestions by BERKELEY Pumps to aid in the proper installation and operation of end suction centrifugal pumps and apply to no particular on specific application and/or installation procedures, maintenance, and repair, should be directed to the nearest BERKELEY Professional damage can occur when excessive force is applied during assembly, disassembly, repair, or maintenance. Generally, components do not need to be forced on or off during these procedures.

2 Use care at all times to protect the physical integrity of all pump components. Introduction 2 section 1: Installation 3-14 section 2: start-up 15-19 section 3: maintenance 20-28 section 4: Pump nomenclature 29-35watch foR thiS SYMBoLInTroducTIonBERKELEY care ManUaL3 suction connection, suction lift recommended 4 suction connection, suction lift not recommended 5 suction connection, flooded suction recommended 6 suction connection, flooded suction not recommended 7 discharge connection recommended 8 discharge connection not recommended 9 Pump foundation 10 Pump Protection, Pump House / shelter 11 shaft alignment belt / coupling drive 12 Protect Your Investment 13,14conTenTsSEction 1 - inStaLLation4503 0194 Short length of straight pipe after reducer.

3 ( 2 times pipe diameter minimum )SuctionGauge Straight run, short as possible but at least 6 times pipe diameter ("D")after elbow to stabilize close as possiblePipe diameter ("D")4 x "D"minimum1 x "D" minimumfrom bottomStrainer / Foot ValveTo keep debris from enteringpump suction and to maintainpump prime after Reducerflat side pipe as requiredNOTICE: All connectionsmust be air Han-Dee Primerconnection, see or longradius upwardto Use pipe, tubing, or reinforced hose to make suction connection. Hose must have sufficient strength to resist collapse under the atmospheric pressure differential that occurs while pump is running. Piping run and connection fittings should be properly aligned and independently supported to reduce strain on pump case.

4 Suction pipe size should be at least one commercial pipe size larger than opening of pump inlet. Flow velocity should not exceed 8 Suction screen must screen out solids that could clog pump impeller. Suction screen area must be at least four times suction pipe area. Net Positive Suction Head Available (NPSHA) must exceed Net Positive Suction Head Required (NPSHR) by the pump or reduced performance and severe pump damage may result. All suction piping must have a continuous rise to the pump suction inlet. A 1/4 inch per foot minimum slope is lIfTinStaLLation SUction connEction5505 0194Do not Reducer causes high spotsalong the suction line resulting in air not install valves in suction run not recommendedUnsupportedpipe causesexcessive stress on pump and use of pipe fittingsmeans potential air support oruneven mountingnot suctionlift shouldbe than4 x "D"Vortex caused byinsufficient submergencemay cause pump tolose strainermay causepump to clog.

5 Insufficient bottomclearanceElbow immediately infront of pump intakenot diameter("D") undersizedreduces performancenot REcoMMEndEd Suction pipe sloping downward to pump inlet will trap air which will reduce performance and may cause pump to lose prime. Suction piping that is undersized will create excess friction losses that may cause cavitation and a reduction in pump performance. Excess fittings and bends in suction line results in trapped air, reduced performance, and high friction losses which may cause lIfTinStaLLation SUction connEction6702 0294 Water underpressureSupport pipeas requiredShort run of straight pipe after reducer(2 times pipe diameter).Eccentric Reducerflat side minimum liquidlevel to prevent Valvefull open orlong radiuselbow.

6 SuctionGauge Straight run, short as possible but at least 6 times pipe diameter afterpipe fitting to stabilize upward to pump. Use pipe, tubing, or reinforced hose to make suction connection. Hose must have sufficient strength to resist collapse under the atmospheric pressure differential that may occur while pump is running. It is important, even with a flooded suction condition, that proper pipe fittings are used so water is delivered to impeller eye with a smooth flow and constant velocity. Suction pipe size should be at least one commercial pipe size larger than opening of pump inlet. Flow velocity should not exceed 8 An isolation valve is used in a pressurized suction pipe to permit servicing pump.

7 Piping run and connection fittings should be properly aligned and independently supported to reduce strain on pump case. If solids are present, a strainer should be used to protect the flooded sucTIon exIsTsinStaLLation SUction connEction7703 0294 Water underpressureInverted Eccentric Reducermay result in air not leave valve partially Valvein suction pipenot causesexcessive stresson pump and Reducer maycause air immediately in frontof pump intake not in upwardposition may elbow or shortradius elbow notrecommended. Suction piping that is undersized will create excess friction losses that may cause cavitation and a reduction in pump performance. Excess fittings and bends in suction line results in trapped air, reduced performance and high friction losses which may cause cavitation.

8 If a check valve is required for back flow prevention, locate on the discharge side of REcoMMEndEdwHen flooded sucTIon exIsTsinStaLLation SUction connEction8 REcoMMEndEdExpansion joint with tierods where Concentric Reducerto mimimize friction fitting may be used tocheck shut-off pipingas requiredThis view shows dischargefittings typical of pumpwith flooded two views show dischargefittings typical of pump withsuction pipe diameter atleast one nominal pipe sizelarger than discharge openingin pump. Non-Slam orspring loadedcheck valve topermit servicing ofcheck valve or piping tominimize 0294 PressureGauge Use pipe, tubing, or reinforced hose to make discharge connection.

9 Material selected must have sufficient strength for operating pressures. Discharge pipe should be sized so that flow velocity is below 8 Use only non-slamming check valves to prevent hydraulic shock (water hammer). Use gate, ball, or butterfly valve for isolation. Valve should be full open during operation. Maintain proper pipe size throughout discharge system, using as few elbows and tees as possible to keep friction loss to a minimum. Install pressure gauge after reducer as shown to check operating connecTIon9not REcoMMEndEd Avoid excess friction loss caused by numerous fittings, insufficient pipe diameter, and sharp turns in pipe run. Some swing type check valves may permit build-up of reverse velocity before closing causing hydraulic shock or water hammer.

10 Do not use Gate Valveto throttle abrupt changein pipe 0294 Avoid undersizedpipe not force alignmentthat can cause not leavepipe check valvesthat cause connecTIon10 Drainage Drainage Pump or Motor Frame1/2" or thickerSole Plate tappedfor hold down boltsAnchorBoltsConcrete FoundationPump or Motor FrameShimsfor alignmentAnchorBoltSteelChannelConcreteF oundationGroutGroutDamDrainageWedgesVari ous HeightsConcreteFoundationShims797 0394 TackWeld There are several types of permanent pump/ foundation installations in use. Those pictured above are typical. If grout is used, top of concrete should be left rough to provide a good bonding surface. Foundation should slope away from pump to prevent liquid from InsTallaTIonsinStaLLation PUMP foUndation11To PumpSuctionTo PumpDischargeProvide proper supportfor all pipe watersourceTo waterserviceLarge door(s)for installationand servicingForced air ventilationis recommendedAllow for properdrainage934 0594 Removablefor serviceAir Movement 935 0594 Check local codes for all electrical connections.