WORKING PRINCIPLE:

The series are SELF-PRIMING CENTRIFUGAL PUMPS with cast iron body,self priming is achieved using an ejector,housed in the pump body,The total delivery  produced by the closed centrifugal impeller sent only party to the delivery opening.The remaining water is recirculated through the ejector,which is connected to the suction chamber and generated te neccessary vaccun of self-priming the pump.When first starting the pump nody fill with water,without bothering to fill the suction piping and elminate any air pockets.When the pump is started up the water in the pump the vaccum thus generated causes water to rise in the suction piping,thus self piming the pump.Since the self-priming system operates,continuously,these pumps are practiically unaffected even by the presece of large amounts of entrained air in the fluid being pumped,The series,based on past TOPexperience,is designed with particular attention to comp shape,lightweight structure and choice of material,combining high performance with extermely quiet running.

PUMP INSTALLATIONA ND APPLICATIONS

These pumps are suitable for pumping clean water and fluids which are not chemically aggressive to pump components.

THY ARE EXTERMELY RELIABLE,LIGHT,ECONOMICAL AND SIMPLE TO USE,FINDING MANY USES IN DOMESTIC APPLICATIONS,IN PARTICULAR THE AUTOMATIC DISTRIBUTION OF WATER FROM SMALL AND MEDIUM-SIZE SURGE TANKS,WATERING GARDENS.ECT

These pumps should be installed in a covered area,protected against the weather.

N.B ,it is always advisable to install a foot vavle or a non return valve on the suction opening.

PERFORMACE

The wide range of pumps in the series satisfied the most varied requirements with feature such as:

-high heads with respect to power required:

-flat operating and power absorption curves,giving moderate curve variation with respect to large variations in delivery demand;

-very low noise levels within the flied of application;

-high tolerance of presence of entrained air in the fluid to be pumped;

-suction capacity up  to 9 meters.

STRUCTURAL CHARACTERISTICS

cast iron PUMP BODY

Stainless steel PUMP BODY COVER serving also as mechanical seal housing.

Technopolymer EJECTOR UNIT (approved for drinking water)

Centrifugal radial flow IMPELLER in technopolymer (approved for drinking water)

Ceramic and graphite MECHANICAL SEAL

MOTOR:the pumps are coupled directly to an asynchronous,high efficiency TOP induction motor of suitable size,which is quiet running,closed and extermally ventilated,suitable for continuous duty ,INSULATION class F.(class B up to 0.90kw).

The thermal cutout relay(motor protector) is incorporated in single phase motors.

Three phase motors require an adequate external motor protector,with connections according to current standards.

PROTECTION IP 44

CONSTRUCTION AND SAFTY STANDARD in compliance with IEC

Warranty:1 year(according to our general sales conditions)