INSTRUCTIONMANUALOFMPV3SWITCHINGVALVE
Readtheinstructionmanualwithoutfailbeforeusin
gtheswitchingvalveandkeepthemanualwithcare.

WARNING
1.Usethismodelforasuction‑transferwithavacuumpump.
2.Provideamechanicalfallpreventiveincasedangermayoccurduetoadropofsuckedwork(suckedobjects).
3.Avoiduseoftheswitchingvalveinlocationswherecorrosiveorinflammablegasesexists.

CAUTION
Cautionofpiping
1.IncasemorethanonepadisusedwithaMPV3Evenleakageofonepadmakesthevacuumdegreedropandleadstothedropsofthe
otherpads,resultinginamiscarriageofsuction.(
Thevacuumdegreedropswithoutsuctionofanypads.)
2.DonotsupplyanycompressedairtotheVPortheVport.
3.Usesealtapesorsealingmatrixin2ridgesapartf
romtheedgeofthethreadsothatthesealsorthetapesmaynotstretchout
intothepipesorthemachinestoavoidtheairleak
ageorthemalfunctions.
4.UseahorsewithalargerdiameterandwithashorterlengthincaseoftheuseofmorethanaMPV3.Installanairtankanda
regulatorifrequired.
5.IncaseofcouplingaVportofapadandahorse,useafittingwithasideof12orless(anouterdiameter13orless)ina
clampingplace. Useasshortapipingaspossibletoavoidtheleakage.

Cautionofoperation
1.OperateMPV3withinthetemperaturerangeof5‑50de
greeCelsius.
2.Compressedaircontainsalotofimpurities(water,oxidizedoil,tar,andforeignparticles). ThismaycausedeteriorationofthefunctionsoftheMPV. Improvetheairqualityb
ydehumidifyingwithafter‑coolersordryersandalsoremovetarwithtar
removingfilters. Donotuselubricators.
3.Rustinpipescouldcausethemalfunction.Insertanairpressurefilterwitha5microorlessfiltrationrightinthefrontof
thesupplyportofcompressedairofMPV3.
4.Operateasolenoidvalvewithina10%fluctuationofaratingvoltage.
5.Avoiduseoftheswitchingvalvewithavibrationof30m/sec‑squareorover,ashockof150m/sec‑squareorover.
6.Installtheswitchingvalveasapartaspossiblefromhigh‑pressureequipment,high‑tensioncablesorpowercablesthatmayemit
noises.
7.Waterdropletsspattereddirectlyonthesolenoidvalvecouldcauseshortcircuitsorcoilburnouts. Protectthevalvewitha
coverorbyinstallingitinsideapanel.
8.Moisture,oil,salinity,metalchipsorthelikecau
sedeteriorationsofthefunctions.Avoidsuctionofthesematerials.
9.Useatankoravacuumdecreasevalvetostabilizeavacuumsupplypressure.

Cautionofmaintenance
1.Switchoffpowerwithoutfailwhendisassemblingorchangingcomponentsisperformed.
2.AssemblingordisassemblingMPV3shouldbeperformedbytrainedpeople.
3.Donotlosecomponentswhenassemblingordisassembl
ing.
4.Whendisassembling,wearagoggleforprotection. S
pringpartscouldjumpoutoftheequipment.
5.Standardclampingtorquesofinstallingeachscrewa
reM1.7：0.05Nm/M2.5：0.16Nm/M3：0.59Nm
6.Itisessentialthatfilterelementsbeperiodicallycleanedorexchangedifnecessarybecauseofcloggingofimpuritieslike
water,oil,salinity,metalchipsorthelike,whic
hmayleadtodropsofavacuumdegreeandairconsumption.

Accessories
Model

Nameofaccessories

Measurement

Quantity

Singleuni

Crossrecessedpanheadscrew

M3×25+W+SW

2

Operation(◎function,○caution)
Vacuumbreakcontrolsolenoidvalve◎Thisisasolenoidvalvetoreleasetheworkcompletely.
(Vacuumisgeneratedwhenthesolenoidvalve
isswitchedon:60l/min(ANR)［0.5MPa‑supplyairpressure］)

Breakflowcontrolneedle◎Turnrighttodecreaseairflowandturnleft
toincreasetheflow.
Vacuumflowcontrolneedle◎Turnrighttodecreaseairflowandturnleft
toincreasetheflow.

Vacuumcontrolsolenoidvalve◎Thisisasolenoidvalvetocontrolavacuum
valve.
a.Supplyairpassageconditionwithnormally
open:
Thevacuumisgeneratedwhenthesolenoid
valveisswitchedoffandstopswhenthe
solenoidvalveisswitchedon.
b.Supplyairpassageconditionwithnormallyclose:
Thevacuumisgeneratedwhenthesolenoid
valveisswitchedonandstopswhenthe
solenoidvalveisswitchedoff.
○Preventdirt,miniatureparticlesandthelike
fromgettingintothesolenoidvalveusinga
smallsized3‑portvalve. Thatmaycause
malfunctions.
Compresseda
irsupplypiping(P)○Aninnerdiameterofahoseis4morover.
(Useasizelargerhosewhenthelengthofthe
pipingexceeds2m)○Asmallersizedhosecouldcauseadropofair
pressureandashortageofairflow,
resultinginmalfunctions.

Filter◎Thisistopreventminiatureparticlessucked
byapadfromgettingintoaMPV3.
○Itisessentialthatafilterbemaintainedby
periodicalinspecting,cleaningorreplacing
itbecauseafilteriscloggedwithliquids
likeoil,waterorimpuritiespassingthroughit.
Vacuumsensor◎Asensorstartstooperatewhenthevacuumhas
reachedtothesetvacuumdegree.
○Readtheinstructionmanualofvacuumsensor
beforeusingit.

SuctionpadCompressor
Vacu
umpump

Filterregulator○Setanoperatingairpressureat0.3‑0.5MPa.
○Drainafilterfromtimetotime.(inparticular,drainitmorefrequentlywhileit
isahighhumidity'sseason.)○Donotusealubricator.

Vacuumsidepiping(V)○Aninnerdiameterofahoseis4morover.
(Useasizelargerhoseincasethelengthofthehoseexceeds2m.)○Asmallersizedhosemaycauseadropofair
pressureorashortageofairflow,resulting
inmalfunctions.
Vacuumsupplysidepiping(VP)○Useahosebyconsideringaneffectivecrosssectionalareaofthehorseorthefitting.
○Stabilizevacuumpressurebyinstallingatank
oravacuumdecreasevalve.

ExplodedView
14
1
6

Nameofparts
1
3

1 Mainbody
2 Poppetkitforvacuumcontrol

12

3 Filterbase
4 Filterunit

165 Sensorbase

11

1
0

6 Vacuumsensor
7 Singleunitbase(notapplicabletoamanifoldtype)8

9

8 Poppetkitforvacuumbreak
9 Breakflowcontrolneedle

410 Vacuumflowcontrolneedle

161
5

13 Solenoidvalve
14 Connectorforsolenoidvalve

7161
715 Crosswirekit

115

16 Smallpanheadscrew
17 Oring

1
7

6

11 Upperplategasket
12 Upperplate

1
6
3
1
7
5

2CAUTION*Makesurethatairleakageorthelikeneveroccuratthesidesof
airsupplyandvacuum.
*Asolenoidvalveshouldbewiredcorrespondingtothespecifications.
*Refertothecatalogueinthespecificationsandthemeasurements.

http://www.convum.co.jp
MANUALNO.MPV3E‑0112‑①