Comet MTP MC 25 - HYDRAULIC CONNECTION; Pipe Sizing and Pressure Requirements; Suction Circuit Sizing Caution

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APPLICATIONS
WARNING
•Adequatelyprotectthemovingpartswithsuitableguards.
•emotorpumpmustoperatewithoutexceedingpressureandrotationspeedlimitsasshownontheidentication
plate(12).
epumpapplicationsmustbemadefollowinggoodmechanicalengineeringpractices.eManufacturer’s
Aer-SalesServiceisatthedisposalofthe
Skilled Technician to provide all necessary information.
HYDRAULIC CONNECTION
WARNING
•esuctionandbypasspipesmusthaveaninternaldiameterequaltotheouterdiameterofthesuctionand
bypassttingsrespectively,andanominalpressureof10bar(145psi)and
mustnotbeaectedbyblockages
of any kind
.
•edeliverypipesmusthaveaninternaldiameterequaltotheouterdiameterofthedeliveryttingsanda
nominalpressurenotbelowmaxpumppressure.
•Allthepipesmustbermlyfastenedwithclampstotherespectivettings.
Forthehydraulicsuction,deliveryandbypassconnections,refertothefollowingtableandtoFig.12,which
represents a generic diagram of a possible machine integrating the motor pump.
1. Tank
2. Suction lter
3. Suction circuit
4. Pump
5. Delivery circuit
6. Bypass circuit
7. Spray nozzle (example of accessory)
8. Engine
CAUTION
•Followtheconnectioninstructionsalreadyindicatedinthe “checkIng and connectIng up to the water
supply” and “specIfIcatIons and technIcal data” paragraphs.
 Inparticular,thesuctioncircuitmustbesizedsoasnottodetermineonthemotorpumpsuctiontting:
-apressurehigherthan0.1bar/1.45psi(8bar/116psiforMTPYA65);
-avacuumhigherthan0.25bar/3.63psi(0.3bar/4.35psiforMTPYA65).
 ExceptfortheMTPMC8,MTPMC18,MTPMC20/20andMTPMC25,suctionvacuumsuptomax
0.45bar/6.53psi(0.5bar/7.25psi)areonlyacceptableforoperatingperiodsof10÷15minutes.
•Atmotorpumpsuction,alterofadequatedimensionsmustbetted.Incaseofdoubts,contactthe
Manufacturer.
•Donotsupplythemotorpumpwithliquidsatatemperatureabove40°C/104°F (60°C/140°Ffor
MTPYA65)orbelow5°C/41°F.
EN