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Via Sormani 48/50
20093 Cologno Monzese
Milan, Italy |
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+39 02 2540457 |
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+39 02 2540457 |
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info@euralca.it |
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HOME | PRODUCTS | MECHANICAL METERING PUMPS | MECHANICAL DRIVEN DIAPHRAGM PUMPS TYPE UGD
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Mechanical driven diaphragm pumps type UGD |
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Introduction
The dosing pumps type UGD are studied
to offer a high reliability and a metering
precision also after a long working period.
The simple construction permits the
maintenance operations to unexperienced personnel.
The pumps UGD are
manufactured according to the Standards 89/392 CE and following modifications.
Construction
The pump casing on which is installed the
gear is made of die-cast aluminium and it
is in monobloc execution, as well as the
lantern of the pump head and the lantern
of the motor.
The pumping head can be supplied in
316 S.S. or in PVC.
The diaphragm is made of rubber with
inserted fabrics and externally lined with
PTFE.
Working principle
The dosing pumps type UGD are mechanical diaphragm type
connected to the driving mechanism through a shaft.
The system is type spring return.
The profile of the membrane is designed to assure a flow variation directly proportioned to the stroke.
The electric motor drives the diaphragm through a gear type
worm and worm wheel installed in the pump casing.
The wheel is installed on the side of the driving shaft that
pushes the rod connected to the diaphragm through a cam.
The return of the plunger is assured by the releasing of the
spring installed on the rod that is compressed during the
pushing phase.
The gear is oil lubricated and it is supported at the ends by
overdesigned ball bearings.
The flowrate can be adjusted manually or automatically with
elctric or pneumatic strike positionners.
The adjusting system is based on a regulation micrometric
screw with a rod that shuts the plunger stroke.
This system assures the dosing accuracy and the repeatibility.
The dosing range varies from 0 to 100% of the flowrate.
Electric motors
The electric motors are manufactured according to the
Standards UNEL-MEC.
The main characteristics are: frame B14, eurovoltage, 3
phases, multyfrequency, mechanical protection IP 55 and
insulation Cl F.
On request it is possible to install single phase motors. |
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