Seko Bono Exacta
Via Resistenza, 12
20068 Peschiera Borromeo - Milano
Italy


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0039 025530 2848
0039 02547 1955
exacta@bono.it

http://www.bono.it/

 

Bono Exacta is the Company within the Bono Group specialized in the design and manufacturing of Metering Pumps and Dosing Systems. Established in 1958 as an industrial boiler manufacturen the Bono Group completed very soon the original Thermal Division (Bono Energia) with the Ecology Division (Bono Sistemi) and the Pump Division (Bono Exacta).

The Products
Specialized in the design and manufacturing of dosing and transfer pumps and systems, Bono Exacta offers a whole range of plunger and diaphragm pumps with flow rates from 0.6 Iph to 60,000 Iph and pressures up to 1,200 bar. The product range is completed by installations and dosing systems, including units for the preparation, dilution, storage and dosing of chemicals for the water treatment; furthermore Bono Exacta can design and manufacture complex complete systems for the following applications: thermal, power and desalination plants, petrochemical and chemical industry, civil or industrial water treatment, agriculture, food and beverages preparation.

Bono Exacta metering pumps consist of pump head, mechanism with the manual flow-rate adjustment device, gearbox and motor. The whole range of Bono Exacta pumps is manufactured in accordance to the API 675 International Standards. Each single pump is functionally tested and certified before delivery, to ensure the consistent product quality.


Mechanical return mechanism

Simplicity and Robustness
The mechanical design of the mechanism, selected for its simplicity, reduces maintenance; it is robust and well suited for heavy industrial continuos duties.


Accuracy
The flow rate can be regulated by changing the piston stroke length; the variation of the stroke can be made from O to 100% with the pump in operation or at rest. From 10 to 100% the accuracy is ± 1%, in conformance to API 675 Standards.


Spring return mechanism

Linearity
Diaphragm and piston pumps are positive displacement pumps, therefore the output rate is almost independent from the discharge pressure.

 
Automatic and Remote Flow Rate Regulation
The pumps can be fitted with several regulation devices, to meet the Customers' requirements:
• pneumatic positioner, control signal 3*15 p.s.L;
• electric servomotor, control signal 4+20 mA, 0+10 V;
• inverter drive for AC electric motors;
• mechanical or hydraulic speed
 


 

Packed Plunger and Piston Pump Heads:
a Competitive Solution

Packed plunger liquid ends are made, as a standard, of stainless steel, plungers can be chromium or ceramic coated orcompletely in ceramic. Packings can be chosen among a variety of materials: elastomers, PTFE, Kevlar, to match the aggressiveness of the pumped liquid and its temperature; the relevant connections forflushing or drain areavailable.
The pump head is divided from the driving mechanism by an open space, preventing the pumped liquid to pollute thelubricatingoil.
These pumps offer a Competitive solution with the best ratio between performance and cost.

 



Doublé acting pump head.

 

 



Jacketed pump head with hydraulic barrier.

 
           

Diaphragm Pump Heads: a Seal-less Solution
Awide range of construction materials is available:

for the pump head:
stainless steel, hastelloy, Alloy 20, PVC, PP, PVDF, PTFE.;

for the diaphragms:
elastomers such as NBR, FPM, EPDM, PTFE coated elastomers, pure PTFE and metals.
 

Mechanical Diaphragm
Azero-leakage solution, safe and economical for low pressure dosing applications. Mechanical diaphragm pumps are available with multi-layers PTFE diaphragms and plastic or stainless steel pump heads.

Hydraulic Diaphragm
Combining the advantages of volumetric pumps with the seal-less nature of diaphragms, hydraulic diaphragm pumps offer the solution to many dosing needs, when the pumping conditionsand thefluids are hazardous ordifficult. Bono Exacta designs and manufactures pump heads with single and doublé diaphragm.

The principle of the doublé diaphragm either with intermediate liquid or sandwich type offers several advantages:
• Doublé barrier between the pumped and the hydraulic fluids.
• The hydraulic fluid could be chosen to be compatible with the pumped medium.
• The flow path on the process chamber is always clear, sincethe movementof the process diaphragm is controlled by the hydraulic diaphragm and its contour plate. The process side diaphragm cannot strike the pump head, thus avoiding the risk of its tearing or mechanically wearing. This is an ideal solution for liquids containing solids or abrasive particles. The sandwich diaphragm offers the advantage of a more compact construction, with two parallel diaphragms installed without intermediate liquid; even if one diaphragm ruptures the second one ensures the pump operation.

 


Hydraulic diaphragm pump head, "Sandwich" type.

 



Diaphragm Rupture Detection

The working life of a hydraulic actuated diaphragm is very long and an accidental rupture quite rare, however the importance of certain critical applications requires a protection against a possible rupture. Two types of diaphragm rupture detector are available:
Sandwich Diaphragm:
undernormal operating conditions, there is no pressure between the two parallel diaphragms. If one of the two diaphragm leaks, an over-pressure isdetected. The detection can be visual via a pressure gauge or automatic via a pressure switch.


Sandwich Diaphragm:
undernormal operating conditions, there is no pressure between the two parallel diaphragms. If one of the two diaphragm leaks, an over-pressure isdetected. The detection can be visual via a pressure gauge or automatic via a pressure switch.


 
 

Diaphragm with Intermediate Liquid:

a conductivity probe is installed on the intermediate chamber; even in case of a small leak the conductivity of the intermediate liquid is modified and the variation immediately spotted. This solution is the most efficiënt, when pumping liquids with suspended solids, that could block the sandwich diaphragm.

 

PLUNGER AND PISTON PUMPS
High precision versions, designed forthe continuos service.

"A" Series

Simplicity, reliability and easy-installation are the most evident characteristics of this line, that has a spring return mechanism, plastic orstainless steel pump heads, self-adjusting packings.

Flow rate from 3 to 200 Iph.
Maximum pressure 20 bar.

"M" Series
Compact, rugged forgreat performances, spring return mechanism.

Flow rate from 0.6 to860 Iph.
Maximum pressure 338 bar.

"E" Series
Heavy duty pumps, mechanical return mechanism.

Flow rate from 2 to 16,569 Iph.
Maximum pressure 1,000 bar.

"R" Series

Process pumps with the stroke length adjustment permitted only if the pump is at rest, the original design of the mechanism allows the assembling of two pump-heads.



"R80TC" Series.


"C" Series
Process pumps with fixed flow rate, have the same characteristics of the "R" Series, except the adjustment device.

Flow rate from 200 to 27,000 Iph.
Maximum pressure 420 bar.









 

MECHANICAL DIAPHRAGM PUMPS
A seal-less solution for low pressure dosing applications.
"MP" Series, Spring Return Mechanism
Flow rate from 8 to 820 Iph.
Maximum pressure 10 bar.

10 MP Series

4 MP Series

 


"FIC 80" Series

HYDRAULIC DIAPHRAGM PUMPS
The seal-less solution for dosing almost anything, even if containing abrasive suspensions combining the accuracy of the plunger pump heads with the hermetic solution of the diaphragm pump heads.

"FIR" Series
Process pumps with the stroke length adjustment permitted only if the pump is at rest. The original design of the mechanism allows the assemblingoftwo pump-heads.

"FIC" Series
Process pumps with fixed flow rate, have the same characteristics of the "R" Series, exceptthe adjustment device.
Flow rate from 600 to 15,000 Iph. Maximum pressure 100 bar.

 
"FIM Series", Hydraulic Diaphragm, Spring Return Mechanism
Flow rate from 0.5 to 844 Iph.
Maximum pressure 70 bar.


"FIM1" Series
 

"FIE1R" Series
"FIE Series" Hydraulic Diaphragm, Mechanica! Return Mechanism
Flow rate from 1.5 to 15,906 Iph.
Maximum pressure 150 bar
.

 

MULTIPLE-HEADED DOSING GROUPS
All Bono Exacta pumps have been designed following a modular concept, that allows the assembly of multiple-
headed units, even with pumps of different sizes and
performances.
The group is run by the same drive, whilst the flow rate of each pump head can be individuallyadjusted either manually or automatically.




"3C-TRIPLEX" SERIES
Designed according to API674 Standards, these pumps represent the ideal solution for heavy and continuous duties with critical
liquids, difficult to be handled for temperature or pressure reasons.


 



CENDOS, Dilution and Dosing Systems

Bono Exacta can provide a line of standard and tailored systems, with tanks from 100 to 1,000 litres, metering pumps and relevant accessories, to satisfy the most common requirements of preparation and dosing of Chemicals in water-treatment plants and other industrial applications.





Dilution and dosing
units, "CENDOS".


 

POLYMAN, Manual Systems for the Preparation of Polyelectrolytes


Conceived for sporadic requirements, they are available in four standard models with tanks from 100 to 1,000 litres.





Manual preparator of polyelectrolyte, POLYMAN".

 

 

POLYCENDOS, Automatic Systems for the Preparation of Polyelectrolyte
The demand for the automatic and continuous preparation of polyelectrolytes, needed in water-treatment applications, is brilliantly solved by POLYCENDOS, complete and autonomous systems for the dilution, dispersion, ageing, storage and dosing. The standard models are in stainless steel and include eight verslons from 550 l/h to 8,000 l/h; further executions are available upon request.

ACCESSORIES
Further to the wide pump range, Bono Exacta can provide a complete series of accessories such as safety, back-pressure and check valves, bag pulsation dampers, slow- and high-speed mixers.

Adjustable back pressure valves, "VSM".


Calibration pots . Back pressure and check valves, "VZ" "VR".