SODI SCIENTIFICA

SODI SCIENTIFICA - Sodi Scientifica was incorporated in Florence, Italy. In 1964, in fact, Fiorello and Carla Sodi set up “Sodi Costruzioni Elettromeccaniche” as an Engineering firm. Subsequently, the company designed and produced electro-diagnostic equipment, products for environmental protection and electronic devices for the detection of road traffic. Thus it gave rise to the Environment Division – with water treatment products – and the Traffic Division with the Autovelox, a speed enforcement device, and other traffic detection equipment.

Sodi Scientifica: High quality for a cleaner world The overwhelming increase in the world population and the trend which we can expect in the near future make it necessary for us to use every environmental resource rationally, starting with water, an essential element for mankind. Thus, it is mandatory to put the best techniques into effect in order to eliminate pollutants from water. For over thirty years, Sodi Scientifica’s Environment Division has been making high quality products which contribute to create a cleaner world.

Products

Metering Pumps
Polyelectrolyte Dissolving System

Metering Pumps

Metering pumps PD series

Over 15.000 configurations available

The main features of our metering pumps – acknowledged for many years by the market – are sturdiness, reliability and metering precision, with no compromises, even in heavy duty applications.
The pumps are available with plunger pumping system, with mechanical and hydraulic membrane, with nominal performance reaching maximum flow rates that ranges from 0.5 to 2,200 l/h and maximum pressures up to 40 bar.

Maximum configuration flexibility of all pumps PD series: it has been introduced an innovative configuration system that enables the highest level of personalization of the pump. The 42 basic models, in turn, can be configured according to specific needs (chemical compatibility, viscosity, etc.) so to obtain more than 15,000 standard configurations available!

PD S

Metering pumps
with eccentric movement

Plunger Metering Pump with eccentric movement, spring return and flow regulation with manual control.
The PD S plunger metering pump has been designed and constructed to meet the most varied metering demands of liquids and chemical reagents.
This pump features simple and tested operating principles, yet it does not forgo the high metering precision that characterises all Sodi Scientifica pumps.
Its sturdy and compact structure assures high performance in heavy-duty applications and makes its maintenance very straightforward.

Data sheet

Motor type MEC 56 Special Tropicalized
Gear motor in oil bath
Eccentric crank mechanism with spring return
Protection level IP 55
Power supply 230 V single-phase or 400 V three-phase
Analog flow indicator
Nominal performance
Max flow rate(1) (2) l/h 5 10 15 15 30 45
Max. press. with three-phase motor bar 10 10 10 10 10 10
Max. press. with single-phase motor bar 7 3 3 3 3 3
Construction features
Stroke length mm 15
Plunger DN, mm mm 16 16 16 27 27 27
Strokes / 1’ (SPM) SPM 45 90 135 45 90 135
Connections A/M 7/10 mm hose connector
Valve type Single sphere, Single sphere with spring AISI316 (PVC valve body only), High viscosity
Construction materials
Head and valve body Glass fibre filled polypropylene
Plunger Ceramic
Valves Ceramic, AISI316 stainless steel, Glass, PTFE
Seals FPM (Viton®), EPDM
Pump body Light Alloy
Painting RAL 6011 Nitrosynthetic enamel
Manual flow regolation

Manual regulation when stationary or in motion: Theoretical 0-100%, Useful 10-100%. Plunger stroke length is regulated through a manual rotation of a graduated wheel with locking knob. The flow rate is indicated on a printed analog scale.
Supplied accessories
Polyethylene Hose 7/10 4,5m Set of head seals 1
AS 1/2″ Valve 1 Foot valve with filter 1
Vent hose 1 Plunger disassembly wrench 1
Weights and dimensions
Net weight kg 5,60
Gross weight kg 5,80
Packaging dimensions mm 340x270x240

PD 64

Metering Pumps
with eccentric movement

Plunger Metering Pump with eccentric movement, spring return and flow regulation with manual control or servo-assisted.
The PD 64 plunger metering pump has been designed and constructed to meet the most varied metering demands of liquids and chemical reagents. This pump features simple and tested operating principles, yet it does not forgo the high metering precision that characterises all Sodi Scientifica pumps. Its sturdy and compact structure assures high performance in heavy-duty applications and makes its maintenance very straightforward.
Available in three main versions, with head and valve body in PVC, in AISI 316 stainless steel and with the special AISI 316 stainless steel head for high pressures.

Data sheet

Asynchronous Motor type MEC 63 Tropicalized
Standard three-phase 400 V 50Hz or 400 V 60Hz power supply
Gear motor in oil bath
Eccentric crank mechanism with spring return
Protection level IP 55
Nominal performance
Max flow rate (1) (2) l/h 4 8 12 10 20 30 30 50 60 90 100 100 150 200 300
Max press bar 40 30 30 15 15 15 15 10 10 7 7 7 7 7 5
Construction features
Stroke lenght 20 mm
Plunger DN, mm 9.5 9.5 9.5 16 16 16 27 35 27 27 35 50 35 50 50
Strokes / 1′ 45 90 135 45 90 135 45 45 90 135 90 45 135 90 135
Connections A/M Fig 1 Threaded – Gluing mm 3/8″ – 16 1/2″ – 20 3/4″ – 25
Connections A/M Fig 2 Flanged EN 1092-1 PN 10/16 DN 20
Connections A/M Fig 3 Intake 20 mm Supply G1/2” F
Valve type Single sphere Single sphere; Double sphere (only PVC); Single sphere with Aisi 316 spring (only PVC valve body); High viscosity
Constructionmaterials
Components Model no.3 Models no.1 and 2
Head and valve body AISI 316 stainless steel PVC; AISI 316 stainless steel;
Valves AISI 316 stainless steel; Ceramic Glass; Ceramic; AISI 316 stainless steel; PTFE;
Plunger AISI 316 stainless steel AISI 316 stainless steel; Ceramic;
Seals FPM (Viton®); EPDM;
Pump body Light alloy
Painting RAL 6011 Nitrosynthetic enamel
Accessories on demand

A number of accessories are available on demand, such as, just to name a few, self-regulator with 4-20 mA signal, high foot support, injection valve, flexible hose etc..

PD 71

Metering pupms
with eccentric movement

Plunger Metering Pump with eccentric movement, spring return and flow regulation with manual control or servo-assisted.
The PD 71 plunger metering pump has been designed and constructed to meet the most varied metering demands of liquids and chemical reagents.
This pump features simple and tested operating principles, yet it does not forgo the high metering precision that characterises all Sodi Scientifica pumps.
Its sturdy and compact structure assures high performance in heavy duty applications and makes its maintenance very straightforward.
Available in two main versions, with head and valve body in PVC and in AISI 316 stainless steel.

Data sheet

Asynchronous Motor type MEC 71 B4 B5 Tropicalized
Standard three-phase 400 V 50Hz or 400 V 60Hz power supply
Gear motor in oil bath
Eccentric crank mechanism with spring return
Protection level IP 55
Nominal Performance
Max flow rate(1) (2) l/h 65 130 130 190 200 270 400 430 640
Max press bar 16 16 12 10 6 8 8 6 8
Construction features
Stroke length 25 mm
Plunger DN, mm 35 35 50 35 63,5 50 50 63,5 63,5
Strokes / 1′ (SPM) 45 90 45 135 45 90 135 90 135
Connections A/M Fig 1 Threaded – Gluing 1/2″ – 20 3/4″ – 25 3/4″ – 25 3/4″ – 25 3/4″ – 25 3/4″ – 25 3/4″ – 25 3/4″ – 25 3/4″ – 25
Connections A/M Fig 2 Flanged EN 1092-1 PN 10/16 20 25 25 25 25 25 25 25 25
Valve typee Single sphere; Double sphere (only PVC); Single sphere with Aisi 316 spring (only PVC valve body); High viscosity
Construction materials
Head and valve body PVC; AISI 316 stainless steel
Valves Glass; Ceramic; AISI 316 stainless steel; PTFE
Plunger AISI 316 stainless steel; Ceramic
Seals FPM (Viton®); EPDM
Pump body Light alloy
Painting RAL 6011 Nitrosynthetic enamel
Flow regulation

Manual regulation when stationary or in motion with automatic regulation option. Theoretical 0-100%, Useful 10- 100%. Plunger stroke length is regulated through a manual rotation of an adjustment knob. The analog indicator shows the pump’s instantaneous flow rate. A PWM (Pulse Width Modulation) system also makes it possible to modulate metering and assures integration of this pump into more complex systems, typical of the industrial sector.

PD 80

Metering pumps
with rod crank mechanism

Plunger Metering Pump with rod crank mechanism, harmonic plunger movement with positive return, flow rate regulation with manual control or servo-assisted.
The PD 80 plunger metering pump has been designed and constructed to meet the most varied metering demands of liquids and chemical reagents. This pump features simple and tested operating principles, yet it does not forgo the high metering precision that characterises all Sodi Scientifica pumps.
Its sturdy and compact structure assures high performance in heavy duty applications and makes its maintenance very straightforward.
Available in four main versions, two with head and valve body in PVC and two with head and valve body in AISI 316 stainless steel, differentiated based on maximum flow rate level.

Data sheet

Asynchronous Motor type MEC 80 Tropicalized
Standard three-phase 400 V 50Hz or 400 V 60Hz power supply
Gear motor in oil bath
Rod crank mechanism, harmonic plunger movement with positive return
Protection level IP 55
Nominal performance
Max flow rate(1) (2) l/h 130 210 260 380 400 430 630 740 800 1200 1450 2200
Max press. bar 16 16 16 16 16 16 16 8 8 8 5 5
Construction features
Stroke length 25 25 25 25 30 25 25 30 30 30 30 30
Plunger DN, mm 50 63,5 50 50 79,5 63,5 63,5 108 79,5 79,5 108 108
Strokes / 1′ (SPM) 45 45 90 135 45 90 135 45 90 135 90 135
Connections A/M Fig 1 Threaded – Gluing mm 3/4″ – 25 3/4″ – 25 3/4″ – 25 3/4″ – 25 nd – nd 3/4″ – 25 3/4″ – 25 nd – nd nd – nd nd – nd nd – nd nd – nd
Connections A/M Fig 2 3 4 Flanged EN 1092-1 PN 10/16o DN20 DN20 DN20 DN20 DN40 DN20 DN20 DN40 DN40 DN40 DN40 DN40
Valve type Single sphere; Double sphere (only PVC); Single sphere with Aisi 316 spring (only PVC valve body); High viscosity Single breechblock; Single breechblock + AISI 316 spring
Construction materials
Components Max flow rate 130 ÷ 630 l/h Max flow rate 400 ÷ 2200 l/h
Head and valve body PVC; AISI 316 stainless steel
Valves Glass; Ceramic; AISI 316 stainless steel; PTFE PTFE
Plunger AISI 316 stainless steel; Ceramic Ceramic
Seals FPM (Viton®); EPDM;
Pump body Light alloy
Painting RAL 6011 Nitrosynthetic enamel

PDM 56

Metering Pump
with mechanical diaphragm

High Performances and Maximum Flexibility
Nominal performances
Max flow rate l/h 6 11 17 23 9 19 28 38
Max pressure with three-phase motor bar 8
Max pressure with single-phase motor bar 5 5 4 3,5 5 5 4 3,5

For higher flow rate see our pump model PDM 71
Oil bath gear box
Asynchronous Motor type
MEC T56 tropicalized
Eccentric crank mechanism
with spring return
Standard three-phase power supply

230/400V 50Hz or 275/480V 60Hz, 4 or 2 poles
Protection level
IP 55

PDM 71

Metering Pump
with mechanical diaphragm

High Performances and Maximum Flexibility
Nominal performances
Max flow rate l/h 50 110 110 160 170 220 320 330 500
Max pressure bar 10 8 10 7 10 8 7 8 7

For lower flow rate see our pump model PDM 56
Oil bath gear box
Asynchronous Motor type
MEC 71 B5 tropicalized

Eccentric crank mechanism
with spring return

Standard three-phase power supply 230/400V 50Hz or 275/480V 60Hz

Protection level
IP 55

Polyelectrolyte Dissolving System

Automix series Polyelectrolyte Dissolution Systems
Sturdiness, reliability and precision

The commercial offer is extremely modular and ranges from simple solutions with basic functions up to fully automatic apparatuses controllable via PLC. Based on the type of system and intended use, the tanks are available in stainless steel and polyethylene with nominal capacities ranging from 1 to 5 m3/h.

In the most complete configurations, initial calibration makes it possible to optimise metering according to the physical features of the used powdered polymer, assuring high metering precision (savings up to 30%), as well as perfect mixing and curing.

Automix Max 40/C

Polyelectrolyte dissolution systems

Sodi Scientifica has been operating for many years on the market with its line of automatic powder dissolution systems having high level of quality and performance indexes. AUTOMIX systems, besides having a highly professional operation, fully controlled by microprocessors, allow for considerable savings in economic terms, as regards the consumption of polymer and for the operational costs and maintenance.
MAIN COMPONENTS
AUTOMIX is a packaged plant consisting of two main sections:

Polymer metering unit
Dissolving, aging and dosing tank

The first section is made up of a stainless steel hopper which contains the powdered polyelectrolyte and is provided with antibridge vibrator, powder’s minimum level probe, timer-operated constant-flowrate screwfeeder, pressure switch – solenoid valve – water intake flowmeter, instantaneous powder-scattering water jet-disperser and a computerized control box housing all the electric and electronic devices for a fully automated operation of the system.
The second part, instead, consists of a stainless steel tank with a nominal capacity of 1000 – 2000 -3500 or 5000 liters of solution, divided into two or three sectors by bulkheads. Each sector is equipped with low-speed stirrer, level probes and lumps-retaining end filter.

Automatic Operation

In this version, the operation is fully automated thanks to the electronic control unit. In particular, Automix can be suitably run according to the physical-chemical characteristics of the polyelectrolyte used and to environmental factors as well.
A preliminary test on the powder, prior to dosing, allows to calibrate the system according to the particle size and bulk density of the type of polymer used, resulting in accuracy of dosage. The intake water flowrate measurement makes it possible to automatically adjust the screwfeeder’s timing and consequently its flowrate so as to keep the water/polymer ratio absolutely constant. The level probes, installed in the last sector of the tank, operate in an automatic way, with a start-stop system, the solenoid valve and the screwfeeder, reactivating both functions to the achievement of the minimum level.

The control box is provided with a keyboard operator interface pad where are also allocated functioning light indicators for all the components of the plant. The same signals can be relayed, either by individual or cumulative contacts, from the terminal board to a remote site for acoustic or visual alarms. Moreover, there is also the provision for the connection of two dosing units including the necessary electrical wiring from the control box. Finally the stainless steel end-filter, represents an additional safety feature to prevent non-perfectly dissolved flocs which might endanger the process efficiency.
The control box is also predisposed with a connection to an autoloader to feed the hopper with powder when it reaches its minimum level.
Specification comparsion between AUTOMIX MAX 40/c and AUTOMIX S
SPECIFICATIONS AUTOMIX S AUTOMIX MAX 40/C
Hopper and cover in stainless steel AISI 304L (130 dm3cap.)
Antibridge electrical vibrator
Capacitive sensor minimum powder level
Screwfeeder’s 40 dm3 max metering capacity
Pressure switch
Pressure reducer
Contactors for control and metering pumps (n. 2)
Pulse emitting flowmeter
Control box
Control box with electronic panel allowing 0,05 – 0,50% concentration setting
Tank cover in stainless steel AISI 304L
OPTIONAL AUTOMIX MAX 40/c AUTOMIX s
Electromagnetic meter
Screwfeeder heater
Predisposition for two additional metering pumps
Powder loader
Extension for hopper
Accessories on demand

A number of accessories are available on demand, such as, just to name a few:
Screwfeeder heater: resistance for heat power of 210 W – 24V voltage, provided with thermal switch set at a fixed temperature. It prevents the polyeletrolyte to become packed in damp and cold environments.
Static Mixer: PVC mixer for spirally feeding the solution of the two metering pumps into one water flow and ensuring a uniform distribution thereof.
Automatic powder loader: fully operated through the electronic panel of Automix, thanks to the loading system equipped with steel lance for the drilling of the bag, has made it possible to solve the problem linked to the danger of possible dusting of the product.
Pumps support: stainless steel AISI 304 support for housing the metering pumps.
230 dm3 Hopper
Outlet and discharge piping

Automix S

Polyelectrolyte dissolution systems

Polymer metering unit
Dissolving, aging and dosing tank

Automatic Operation

In this version Automix provides a synthesis of accuracy of metering, ease of use and automation. The ease of use is one of the distinctive features of this system, without sacrificing the main features, typical of more sophisticated equipment. Sturdiness and reliability complete the profile of this plant. Accuracy in metering is achieved by keeping the intake flow rate steady so that, by knowing the screwfeeder capacity, a constant water/powder ratio can be obtained as well.

The concentration of the solution is set using the knob in front of the electrical panel. Contrary to Automix Max 40/c, this version requires a separate control panel for the dosing units and is not provided with an end-filter.
Specification comparsion between AUTOMIX MAX 40/c and AUTOMIX S
SPECIFICATIONS AUTOMIX S AUTOMIX MAX 40/C
Hopper and cover in stainless steel AISI 304L (130 dm3cap.)
Antibridge electrical vibrator
Capacitive sensor minimum powder level
Screwfeeder’s 40 dm3 max metering capacity
Pressure switch
Pressure reducer
Contactors for control and metering pumps (n. 2)
Pulse emitting flowmeter
Control box
Control box with electronic panel allowing 0,05 – 0,50% concentration setting
Tank cover in stainless steel AISI 304L
OPTIONAL AUTOMIX MAX 40/c AUTOMIX s
Electromagnetic meter
Screwfeeder heater
Predisposition for two additional metering pumps
Powder loader
Extension for hopper
Accessori a richiesta

Automix E

Polyelectrolyte Dilution System

Sodi Scientifica has been operating for many years on the market with its line of automatic powder dissolution systems. It has now extended its own line of products with the brand-new polyelectrolyte dilution system AUTOMIX E for emulsion polymers.

The Automix E polyelectrolyte dilution system is a device that prepares polyelectrolyte solutions starting from dilution water and concentrated emulsion.
To reduce its size, all parts of the system have been arranged in a single panel, on both the front and the rear sides.

Data sheet

Computerised control operated by PLC.
Can be used either with its maturation tank or by directly sending it to the grid.
Optional stainless steel frame, ready for free standing installation or wall mounting.
Small overall size.
The concentration of the final solution is highly accurate and repeatable.
Ease of use and of maintenance.
Wide range of accessories available.
Front side

On the front panel are the dilution water inlet, with its relative flow meter, and the inlet for concentrated emulsion, in addition to the metering pumps, the user interface management display, pressure gauges and a series of control accessories.
Rear side

On the rear side are the dilution water intake regulation devices, the main electric switch, the static mixer and the outlet for the final solution, ready to be sent to the grid or to be stored in its own maturation tank with low-speed stirrer and level probes.

Characteristics and Performance

Diaphragm volumetric metering pumps dose the concentrated emulsion (the pumps have a useful capacity that can be manually adjusted using the 10-100% scale), while the flow of dilution water is managed by a fixed-capacity self-regulating device.
Depending on the number of metering pumps installed, AUTOMIX E is available in three main models, Automix E 20, 40 e 60 that differ from each other in terms of maximum capacity of incoming concentrated emulsion. Thanks to the countless combinations of capacities for the incoming elements, AUTOMIX E ensures a high level of rated production capacity, ranging from 1,000 to 6,000 l/h, easily identified in the graph below.

For rated production capacities lower than 1,000 l/h or for variable capacity ranging from 100 l/h and 6,000 l/h, it is mandatory to use a storage and maturation tank for the final solution (otherwise optional).

Features and accessories on demand

To allow for maximum configuration and personalisation of the system according to the specific needs of the final client, Automix E has been designed with built-in hardware and software capable of fully exploiting the potential of the device even in its most basic version.

A number of accessories and relative software functions are available on demand, to obtain additional controls that can fulfil even the most demanding needs in terms of metering accuracy and automated process control.