GRUNDFOS DATA BOOKLET

Selcoperm SESElectrolysis system for 5-45 kg/h Cl2 (equivalent)

Safe and simple production of sodium hypochlorite solution

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Selcoperm SES

1. General information 3Fundamentals of disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Disinfection with chlorine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3The Selcoperm electrolysis principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Benefits of the electrolysis with Selcoperm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Selcoperm Electrolysis System (SES) 5Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3. Design and technical data 7Selcoperm Electrolysis System (SES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Selcoperm electrolyser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Rectifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11DC cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Degassing and storage tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Brine dosing station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Chiller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Brine tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Acid cleaning station on a trolley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Acid cleaning station for wall-mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Gas warning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4. Accessories 20Maintenance kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Handheld conductivity measuring device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Test kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Compact photometer DIT-L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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Selcoperm SES 1

1. General information

Fundamentals of disinfectionMany diseases are transmitted by drinking water. Among these diseases are typhus, paratyphoid, cholera and diarrhoea with vomiting, as well as viral infections such as hepatitis and poliomyelitis. Legionella in shower or bathing water can provoke pulmonary diseases.

Compared to the chemical contamination of water, where toxicity values are attained only slowly in general, in a drinking water epidemic infections spread dramatically in the whole supply area. The best prevention of epidemics is to use microbiologically clean non polluted water, preferably deep ground water as drinking water. Unfortunately, in some regions this is not possible for hydrogeological or quantitative reasons. In these regions, surface water is used, which often has to be purified. Pathogens that are possibly encountered, can be removed from the water or killed by adding certain substances to the water, i.e. by disinfecting the water.

Disinfection with chlorineThe most widespread disinfectant used in the treatment of drinking water is chlorine, which can be applied in a variety of ways. History has taught us that, in bacteriological terms, chlorinating water is a quite safe way of disinfecting drinking water. After all, more than 100 years have passed since chlorine was used to disinfect drinking water for the first time. Many years of experience have shown that acute toxicity can be excluded, when chlorination is executed correctly.

Generally, three methods are used for chlorinating drinking and process water:

• Chlorine gas dosing

• Dosing of commercial sodium hypochlorite solution or calcium hypochlorite solution

• Electrolytic sodium hypochlorite generation on site

The third method in particular offers a number of advantages, which are incorporated in the Selcoperm chlorine electrolysis systems.

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Selcoperm SES1

The Selcoperm electrolysis principleWith electrolysis, sodium hypochlorite is produced directly from a solution of common salt using electricity.

Fig. 1 Selcoperm electrolysis principle

The following reactions take place in the electrolysis cell:

2NaCl + 2H2O → 2NaOH + Cl2 + H2

The chlorine (Cl2) produced reacts immediately with the caustic soda solution (NaOH) also formed, resulting in a sodium hypochlorite solution (NaClO):

Cl2 + 2NaOH ↔ NaCl + NaClO + H2O

The sodium hypochlorite solution, which is the disinfectant, has a pH value between 8.5 and 9.5, and a chlorine concentration of 8 g/l. It has a half-life of several months, which makes it ideal for storage in a buffer tank.

After dosing the solution into the water flow, no pH value correction is necessary, as it is often required e.g. in electrolysis according to the membrane principle. The sodium hypochlorite solution reacts in a balance reaction, resulting in hypochlorous acid (HClO), the effective disinfectant:

NaClO + H2O ↔ NaOH + HClO

The resulting hypochlorous acid is the actually effective compound for disinfection of the water. The dissociation of acid to anions is primarily according to an equilibrium dependent on the pH value according to the equation:

HClO + H2O ↔ H3O+ + ClO-

Fig. 2 Dissociation of hypochlorous acid in dependence of the water pH value

The dosing quantity depends on the application as well as the local regulations. In general, the concentration after the injection unit is 0.3 to 2 ppm chlorine equivalent.

Benefits of the electrolysis with Selcoperm• Safe and reliable method of producing sodium

hypochlorite on-site

• Common salt is the base material - it is non-toxic, easy to store and easy to handle

• Only water, common salt and electricity are needed for the electrolysis - low operating costs, world-wide use

• Fresh sodium hypochlorite is always on hand and does not dissociate like commercial sodium hypochlorite solutions

• Low formation of chlorate as a by-product

• Less safety requirements than chlorine-gas-based systems

• Lower pH value than commercial sodium hypochlorite reduces scaling of injection units etc. in hard water areas

• Robust design for easy installation and maintenance

• Long service life, compared with membrane cell electrolysis

ApplicationsTypical disinfection applications for Selcoperm systems are especially in

• drinking water treatment,

• water treatment for industrial processes and cooling towers.

The systems are an excellent alternative to chlorine gas or commercial sodium hypochlorite applications.

Remark: Legislation on the use of disinfectants in water treatment applications is country-specific. Please contact your local Grundfos sales office for further details on the use of our products in your application and area.

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Selcoperm SES 2

2. Selcoperm Electrolysis System (SES)

DescriptionThe Selcoperm electrolysis system is a modular system for the safe production of a 0.8 % sodium hypochlorite solution from a diluted brine solution. The system is suitable for the disinfection of drinking water and industrial process water. The intended use of the Selcoperm system comprises the stationary operation either in continuous or batch processing.

Installation scheme

Fig. 3 Installation scheme of a Selcoperm system

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A Water softener The water softener provides the softened mains water required for the electrolysis.

B Chiller and/or heater To provide the right mains water temperature, an optional chiller or heater can be used.

C Brine tank The brine tank is used for preparation and storage of brine.

D Brine dosing station The brine dosing station doses the required amount of brine into the process.

E Selcoperm electrolyser

The Selcoperm electrolyser comprises:• Electrolysis cells• Hydraulic chamber• Control cabinet• 7" multi-colour touchscreen for operating and monitoring of the whole electrolysis system

F RectifierThe rectifier converts the alternating current (AC) from the power supply into the direct current (DC) needed to run the Selcoperm electrolyser.

GDegassing and storage tank with sensors and degassing fan

In the degassing and storage tank the hydrogen gas is removed from the sodium hypochlorite solution. The degassing and storage tank must be installed as close as possible to the Selcoperm electrolyser. The level inside the tank is monitored by a level sensor. The degassing fan ensures a safe dilution and removal of hydrogen gas. The sodium hypochlorite solution can be dosed directly from the tank to the point of application. It is also possible to pump the sodium hypochlorite solution from the tank into separate storage tanks.

H Gas warning system The gas warning system permanently monitors the concentration of hydrogen gas at the installation location.

I Building ventilationNatural ventilation via ventilation holes or technical ventilation is required at the installation location. Legal requirements and local standards must be observed.

K DC cable set Flexible insulated copper cable for direct current connection between the Selcoperm electroyser and the rectifier.

1 Soft water line

2 Brine line

3Sodium hypochlorite solution line

Besides the sodium hypochlorite solution this line contains hydrogen gas, which is removed in the downstream degassing and storage tank.

4 Exhaust air lineThrough this line the dilution air (99 %) and the hydrogen gas (1 %) are removed from the degassing and storage tank by means of forced ventilation. The exhaust air line has to be directed with a constant upwards incline to a safe discharge point outside the building.

5 Sodium hypochlorite solution line to the point of application

- Drain A drain for maintenance is required on site.

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Selcoperm SES2

Functioning and controlSaturated brine from the brine tank (C) is dosed by the brine dosing station (D) into the Selcoperm electrolyser (E), where it is mixed with softened water from the softener (A) in a specified proportion. The resulting diluted brine is led into the electrolysis cells inside the Selcoperm electrolyser (E), where it is converted into sodium hypochlorite and hydrogen by means of direct current (DC) from the rectifier (F). The resulting mixture is led through a line with a slight upwards incline of at least 1 % into the degassing and storage tank (G). The degassing fan at the tank (G) ensures safe dilution and removal of the hydrogen gas to a safe external discharge point. The sodium hypochlorite solution can be dosed directly from the tank (G) to the point of application. It is also possible to pump the sodium hypochlorite solution from the tank (G) into separate storage tanks.

All components and safety functions are monitored and operated via a multi-colour touchscreen at the Selcoperm electrolyser (E).

Safety conceptA reliable safety concept for the operation of the whole system is mandatory, because hydrogen is produced as a by-product in the electrolysis cells.

Before even entering the degassing and storage tank (G), most of the hydrogen is diluted by the degassing fan to 25 % of the lower explosive limit (LEL) and led away into the atmosphere. In the tank the residual hydrogen escapes, is diluted and led away into the atmosphere as well.

The whole Selcoperm electrolysis system is monitored permanently and redundantly. Several sensors at the system, together with hydrogen sensors at the installation location ensure a safety shutdown of the whole system in the event of a failure. Small amounts of hydrogen, which can escape due to a leakage for instance, are led away via the ventilation hole (I) at the highest point of the room. The safety concept is evaluated with technical report by a third-party expert from TÜV SÜD Product Service GmbH. It ensures safe operation without any additional explosion protection at the installation location.

Unique selling points• Unique safety concept, evaluated with technical

report by a third-party expert from TÜV SÜD Product Service GmbH

• No explosion-proof area needed inside the building

• Flow-proportional brine dosing for precise brine concentration

• Standardised modular system

• Outstanding performance data

• Convenient 7" multi-colour touchscreen with self-explanatory menu structure

• Innovative housing design for easy maintenance, flexible installation and safe operation

• Chemically resistant housing material

• High quality standard: Every Selcoperm electrolyser is checked for 100 % performance and tightness at the factory

• Remote maintenance (optional)

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Selcoperm SES 3

3. Design and technical data

Selcoperm Electrolysis System (SES)The following data apply to the overall Selcoperm electrolysis system and cover all capacity levels.

Water quality specificationThe water supply must conform to the required standard of drinking water given in the specification below. Ask your local water supplier for the specific values.

Salt specificationUse food-grade granular/pellet salt (98.5 % NaCl) according to EN 14805 type 2 with following minimum requirements:

Max. limits of dry salt.

Ambient conditions

* System must be drained. For storage temperatures below +5 °C, the whole system including water softener, lines and external components must not contain any water.

Exposition to direct sunlight can cause changes in colour as well as material deformations and cracks. Don't expose the system to direct sunlight.

ParametersValue (maximum unless stated otherwise)

Colour [mg/l Pt/Co] 20

pH value 6.5 - 10.0

Iron Fe [µg/l] 200

Manganese Mn [µg/l] 20

Fluoride F [mg/l] 2

Turbidity [NTU] 4

Max. particle size [µm] 100

Parameter SymbolMax. mass fraction [mg/kg]

Iron Fe 10.0

Manganese Mn 10.0

Bromide Br 100.0

Calcium Ca 100.0

Magnesium Mg 100.0

Permissible ambient temperatures (min./max.)

Transport* -10 / +50 °C

Storage* +0 / +40 °C

Operation +5 / +40 °C

Operation (rectifier) +10 / +40 °C

Max. relative humidity (non-condensing) 90 %

Max. relative humidity (non-condensing) for rectifier 75 %

Max. altitude above sea level 2000 m

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Selcoperm SES3

Selcoperm electrolyserThe Selcoperm electrolyser is the core piece of the Selcoperm electrolysis system.

Fig. 4 Overview components SES-5000 to SES-15000

Fig. 5 Overview components SES-20000 to SES-45000

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Selcoperm SES 3

Legend

General data

* System with air-cooled rectifier, excluding optional chiller and heater

Capacity levels, data and product numbers

Connections

Pos. Description

1 Chemically resistant PEHD frame with collecting tray

2 Easily removable powder-coated housing

3Horizontal electrolysis cells with transparent PVC pipe for easy process monitoring and visual electrode check. Several sensors monitor the liquid level and temperature, the voltage and the temperature of all direct-current (DC) connections.

4Lockable hydraulic chamber with shut-off valves and adjustment valves, temperature sensors, flow sensors and leakage sensors, sample valves for brine and sodium hypochlorite solution, and a connection for acid cleaning.

5

Lockable control cabinet with multi-colour touchscreen, emergency stop and main switch. The control cabinet monitors and/or controls the following components and functions:• Rectifier• Brine dosing station• Sensors and valves of the Selcoperm electrolyser• Level sensors and flow sensors of the degassing and storage tank and the sodium hypochlorite solution line• Degassing fans (duty/standby) of the degassing and storage tank• Potential-free contact for start/stop signal for optional transfer pumps to transfer the sodium hypochlorite solution from the degassing tank to

separate storage tanks• Gas warning system• Several potential-free alarm contacts• Acid cleaning station• Remote maintenance (optional)

6 Top or bottom connection for direct current cables from the rectifier

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7" multi-colour touchscreen for operating and monitoring of the whole electrolysis system. Selectable languages are English, German, Spanish, French, Chinese, Turkish and Russian.The system can be operated in two operation modes:• automatic mode• service modeThe system can also be remotely controlled and monitored via PROFINET.

A Soft water inlet

B Brine inlet

V NaClO solution outlet

Z Drain outlet

Sodium hypochlorite concentration 8 - 8.5 g/l

Salt consumption 3 - 3.5 kg NaCl per kg of Cl2 (equivalent)

Power consumption (DC/AC)* 4.2 - 4.6 / 5.0 - 5.4 kWh per kg of Cl2 (equivalent)

Soft water consumption 125 litres per kg of Cl2 (equivalent)

Soft water inlet pressure 3-5 bar (depending on the capacity level)

Soft water temperature 10-20 °C (for higher or lower temperatures an external chiller or heater is required)

Soft water quality for operation Drinking water quality, softened to: 1 °dH / 17.8 ppm CaCO3 and less

Max. pressure inside electrolyser, NaClO solution line and degassing and storage tank

1 bar

SES typeCapacity level Cl2

(equivalent)[g/h]

Max. power rating of built-in control cabinet

[kW]

Total soft water flow[l/h]

Weight[kg] Product

numberEmpty Filled

SES-5000 5000 1.5 633 660 685 98720672

SES-7500 7500 1.5 944 680 715 98720676

SES-10000 10000 1.5 1266 720 770 98720678

SES-15000 15000 3 1887 780 845 98720681

SES-20000 20000 3 2532 1170 1270 98720705

SES-30000 30000 5.2 3776 1250 1380 98720707

SES-45000 45000 5.2 5660 1350 1550 98720722

Pos. Description SES-5000 SES-7500 SES-10000 SES-15000 SES-20000 SES-30000 SES-45000

A Soft water inlet DN 25 DN 25 DN 25 DN 25 DN 40 DN 40 DN 40

B Brine inlet DN 20 DN 20 DN 20 DN 20 DN 25 DN 25 DN 25

4 Acid cleaning inlet and outlet DN 20 DN 20 DN 20 DN 20 DN 20 DN 20 DN 20

V NaClO solution outlet DN 50 DN 50 DN 50 DN 65 DN 100 DN 100 DN 100

Z Drain outlet DN 25 DN 25 DN 25 DN 25 DN 25 DN 25 DN 25

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Selcoperm SES3

Built-in control cabinet

Dimensions and space requirements

Fig. 6 Dimensions and space requirements. Dimensions in mm.

Supply voltage: 380-415 V, 50-60 Hz (3 phases + N + PE)

Enclosure class: IP54

Electrical safety class: I

Pollution degree: 2

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Selcoperm SES 3

RectifierThe rectifier converts the alternating current from the power supply into the direct current needed to run the Selcoperm electrolyser. In case of a failure, the rectifier shuts down. The communication between the Selcoperm electrolyser and the rectifier is designed redundantly (Profinet and hardwired) for the safety shutdown functions.

Technical data for air-cooled rectifier

Fig. 7 Air-cooled rectifier

Water-cooled rectifiers are available on request

DC cableFlexible insulated copper cable for direct current connection between the Selcoperm electroyser and the rectifier. The standard cable length must not exceed 10 m. Longer cables are available on request.

The cable required depends on the type of the Selcoperm electroyser.

Enclosure class: IP20

Max. relative humidity (non-condensing): 75 %

Permissible ambient temperature for operation (min. / max.):

+10 / +40 °C

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SES typeDimensions

L x W x H[mm]

Weight[t]

DCcurrent

[A]

Power loss[kW]

Air flow[m³/h]

Input voltage50 Hz

3 phases + PE[VAC]

Current per phase

[A]

Product number

SES-5000 900 x 875 x 2500 0.8 1 x 800 4 1300

380 56.8 98844338

400 54.0 98844339

415 52.0 98844340

SES-7500 900 x 875 x 2500 0.8 1 x 800 4.5 1300

380 80.8 98844344

400 76.8 98844345

415 74.0 98844346

SES-10000 900 x 875 x 2500 0.9 1 x 800 5.01 2600

380 106.7 98844350

400 101.3 98844351

415 97.7 98844352

SES-15000 900 x 875 x 2500 1 1 x 800 5.67 2600

380 154.8 98844356

400 147.1 98844357

415 141.8 98844358

SES-20000 1200 x 875 x 2500 1.7 2 x 800 10.03 3900

380 213.5 98844362

400 202.8 98844363

415 195.5 98844364

SES-30000 1800 x 875 x 2500 2 2 x 800 11.33 3900

380 309.8 98844368

400 294.3 98844369

415 283.7 98844370

SES-45000 2700 x 875 x 2500 3 3 x 800 17 5200

380 464.6 98844374

400 441.4 98844375

415 425.4 98844376

SES typeLength

[m]Cable cross-section

[mm2]Product number

SES-5000SES-7500SES-10000SES-15000

45 240 99366691

SES-20000SES-30000

90 240 99366728

SES-45000 135 240 99366739

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Selcoperm SES3

Degassing and storage tankThe degassing and storage tank is a mandatory component of the Selcoperm electrolysis system. In systems with several electrolysers, one tank for each electrolyser must be installed.

The volume of the tank depends on the capacity level of the Selcoperm electrolyser. Engineered degassing and storage tanks are available on request (e.g. larger volumes than indicated in the table).

The sodium hypochlorite solution can be dosed directly from the tank to the point of application. In this case, the volume of the tank must be selected according to the demand of sodium hypochlorite solution of the individual application. It is also possible to pump the sodium hypochlorite solution from the degassing and storage tank into separate storage tanks. Separate storage tanks and transfer pumps are available on request.

One degassing fan is installed on the tank by default. To avoid a system shutdown due to a defective fan, an additional standby fan can be ordered.

Installation set

A special installation set is pre-installed at the degassing and storage tank. The use of this installation set is mandatory to ensure the compliance with the certified safety concept of the Selcoperm electrolysis system.

Fig. 8 Degassing and storage tank 1.5 m3

Components

A collecting tray is not within the scope of delivery.

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Pos. DescriptionPart of

installation set

1 NaClO solution inlet

2 Air inlet

3 Exhaust air outlet

4 Inspection opening

5/6 NaClO solution outlet or Drain

7 Level sensor connection

8 Overflow switch connection

9 Degassing fan yes

10 Level sensor yes

11 Calibration pipe

12 Overflow switch yes

-Air flow sensor for exhaust air line with connection flange

yes

-Leakage sensor(for installation with collecting tray)

yes

- T-piece with NaClO solution line level switch yes

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Selcoperm SES 3

Technical data

Connections

* Outer pipe diameter

SES typeVolume

[m3]Diameter

[mm]

Height (with additional

standby fan)[mm]

Air flow [m3/h]

Product number

Tank with one fanTank with additional

standby fan

SES-5000 1 1000 2100 (2500) 300 99380533 99382924

SES-7500 1.5 1000 2300 (2700) 450 99380855 99382988

SES-10000 2 1300 2200 (2600) 600 99380939 99383004

SES-15000 3 1600 2400 (2900) 900 99381000 99383090

SES-20000 4 1800 2400 (2900) 1200 99381676 99383118

SES-30000 6 2000 2700 (3200) 1800 99381749 99383232

SES-45000 9 2200 3200 (3900) 2700 99382350 99383263

Pos. Description SES 5000 SES 7500 SES 10000 SES 15000 SES 20000 SES 30000 SES 45000

1 NaClO solution inlet (loose flange) DN 80 DN 80 DN 80 DN 100DN 125 d125*

DN 125 d125*

DN 125 d125*

2 Air inlet (socket flange) DN 150 DN 150 DN 150 DN 200 DN 200 DN 200 DN 300

3 Exhaust air outlet (socket flange)DN 125 d125* DN 150 DN 150 DN 200 DN 250 DN 300 DN 300

4 Inspection opening (blank flange) DN 150 DN 150 DN 300 DN 300 DN 300 DN 400 DN 400

5, 6NaClO solution outlet or Drain (union, DN80 flange)

DN 32 DN 32 DN 50 DN 50 DN 50 DN 80 DN 80

7 Level sensor connection (thread) 1/2" 1/2" 1/2" 1/2" 1/2" 1/2" 1/2"

8 Overflow switch connection (solid flange) DN 25 DN 25 DN 25 DN 25 DN 25 DN 25 DN 25

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Selcoperm SES3

Brine dosing stationThe brine is dosed with digital dosing pumps. To ensure reliable brine dosing, the dosing station comprises a duty pump and a standby pump. Pulsation dampers ensure low pulsation. As the counterpressure of the Selcoperm electrolyser is too low, the brine dosing station contains a pressure loading valve.

The dosing station is controlled via the touchscreen on the Selcoperm electrolyser. A Flow Monitor is installed on each pump to monitor the dosing process. Errors in the dosing process are displayed on the touchscreen of the Selcoperm electrolyser.

Fig. 9 Brine dosing station

Components

Technical dataThe Selcoperm electrolyser provides the brine dosing station with the supply voltage of 230 V, 50/60 Hz, and the control current of 4-20 mA.

TM

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3

4

5

Pos. Description

1 Dosing cabinet with sliding doors

2 Pressure pulsation damper

3 Pressure loading valve PLV

4Digital dosing pumps (duty/standby) with flow monitoring function

5Suction pulsation damper with scale for calibration and manual vacuum pump for priming

SES typeDosing capacity

[l/h]Pump type Length [mm]

Height [mm]

Width [mm]

Weight [kg]

Product Number

SES-5000 63 DDA 200-4

1950 1750 400 200 98865559SES-7500 94 DDA 200-4

SES-10000 126 DDA 200-4

SES-15000 187 DDA 200-4

SES-20000 252 DME 375-10 2450 1800 500 250 99155579

SES-30000 376 DME 940-42450 1800 500 270 98865561

SES-45000 560 DME 940-4

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Selcoperm SES 3

Water softenerThe water softener provides the softened mains water required for the electrolysis.

The water softener is equipped with a dual head and two cylinders to ensure a constant soft-water supply even during regeneration. A stand-alone brine tank provides the brine needed for regeneration. An installation set for piping, a bypass valve and a filter with manual backwash function are delivered with each water softener.

The water softener can be ordered pre-assembled on a skid or without skid.

Fig. 10 Water softener

Technical data

TM

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18

03

02

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Supply voltage: 230 V, 50/60 Hz

Operating pressure: 2-8 bar

Power consumption: 10 VA

SES typeSoft water

flow[l/h]

Cylinders Brine tankWater

inlet/outlet

Product numbersoftener, filter and bypass

Diameter[mm]

Height[mm]

Volume[l]

Diameter[mm]

Height[mm]

pre-assembled on skid

without skid

SES-5000 570 2 x 208 1310 150 500 810 DN 25 98865562 98865569

SES-7500 850 2 x 208 1310 150 500 810 DN 25 98865563 98865570

SES-10000 1140 2 x 208 1310 150 500 810 DN 25 98865564 98865571

SES-15000 1700 2 x 208 1310 150 500 810 DN 25 98865565 98865572

SES-20000 2280 2 x 257 1530 210 570 880 DN 25 98865566 98865573

SES-30000 3400 2 x 334 1790 300 700 870 DN 25 98865567 98865574

SES-45000 5100 2 x 369 1840 500 780 1100 DN 40 98865568 98865575

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Selcoperm SES3

ChillerIf the required soft water temperature cannot be met, a chiller can be used to cool the soft water down. The chiller is placed between the water softener and the Selcoperm electrolyser. The softened water entering the chiller must comply with the recommended soft water quality (see page 7). The chiller is designed to run 24 hours a day, controlled via a local control panel.

Fig. 11 Chiller

Technical data

* The values apply to the operating point, the maximum values are higher.

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Supply voltage: 400 V, 50/60 Hz (3 phases + PE), 380 V and 415 V are available on request

Max. water temperature inlet: 30 °C

Water temperature outlet: 15 °C

Flow[l/h]

Capacity level Cl2

(equivalent)[g/h]

Ambient temperature range: 10-40 °C (type OLB), 5-45 °C (type cBoxX, Arctic)

TypeCooling capacity

[kW]

Power consumption

[kW]*

Current consumption

[A]*

Length[mm]

Width[mm]

Height[mm]

Weight[kg]

Product number

600 5000 vBoxX15 10.0 6.2 11.4 800 1000 1500 340 98865576

900 7500 vBoxX24 20.0 13.7 17.3 810 1270 1500 340 98865577

1200 10000 cBoxX 30 23.0 9.2 17.6 1240 830 2030 540 98865578

1800 15000 cBoxX 50 38.0 15.0 27.4 1240 830 2030 550 98865579

2400 20000 cBoxX 60 44.0 19.1 35.8 1240 830 2030 620 98865580

3600 30000 cBoxX 90 63.1 27.2 44.7 1840 830 2030 700 98865581

5100 45000 cBoxX 160 112.5 46.3 82.9 2665 1200 2030 1200 98865582

10200 2 x 45000 2 x cBoxX 160 2 x 112.5 2 x 46.3 2 x 82.9 2 x 2665 2 x 1200 2 x 2030 2 x 1200 98865583

20400 4 x 45000 Arctic 350 345.0 162.6 280.3 6500 2220 2200 4500 98865584

40800 8 x 45000 2 x Arctic 350 2 x 345.0 2 x 162.6 2 x 280.3 2 x 6500 2 x 2220 2 x 2200 2 x 4500 98865585

Flow[l/h]

Capacity level Cl2

(equivalent)[g/h]

Ambient temperature range: 10-50 °C (type OLB), 5-50 °C (type cBoxX, Arctic)

TypeCooling capacity

[kW]

Power consumption

[kW]*

Current consumption

[A]*

Length[mm]

Width[mm]

Height[mm]

Weight[kg]

Product number

600 5000 vBoxX 30 19.3 9.2 13.3 1240 830 2030 540 98865586

900 7500 vBoxX 30 19.3 13.7 17.6 1240 830 1500 340 98865587

1200 10000 cBoxX 40 25.7 12.0 21.9 1240 830 2030 540 98865588

1800 15000 cBoxX 50 31.6 17.5 31.5 1240 830 2030 550 98865589

2400 20000 cBoxX 70 43.0 20.8 35.9 1840 830 2030 650 98865590

3600 30000 cBoxX 100 63.4 31.0 53.3 1840 830 2030 720 98865591

5100 45000 cBoxX 180 110.0 52.3 89.9 3965 1200 2030 1300 98865592

10200 2 x 45000 2 x cBoxX 160 2 x 95.3 2 x 46.3 2 x 82.9 2 x 2665 2 x 1200 2 x 2030 2 x 1100 98865593

20400 4 x 45000 Arctic 380 345.0 230.4 375.9 7500 2220 2200 5000 98865594

40800 8 x 45000 2 x Arctic 380 2 x 345.0 2 x 230.4 2 x 375.9 2 x 7500 2 x 2220 2 x 2200 2 x 5000 98865595

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Selcoperm SES 3

HeaterIf the required soft water temperature cannot be met, a heater can be used to warm the soft water up. The heater is placed between the water softener and the Selcoperm electrolyser. The softened water entering the heater must comply with the recommended soft water quality (see page 7). The device is designed to run 24 hours a day, controlled via a local control panel.

Fig. 12 Heater

Technical data

* The installation set comprises two temperature sensors Pt100 with T-piece, and three bypass valves with valve position indicator

Calculation of heating capacity

The required heating capacity can be calculated individually as follows:

Required heating capacity [kW] ≥ Water flow [m3/h] * Temperature difference to achieve [K] * 1.16

Brine tankThe brine tank is used for preparation and storage of brine.

• Material: Polyethylene

• With water inlet valve

• Gravel bed is not included (gravel bed height depends on salt type)

• Optional overflow switch is available on request

Other sizes, separate storage tanks and transfer pumps as well as gravel are available on request.

TM

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18

08

05

15

Supply voltage: 400 V, 50/60 Hz (3 phases + PE)

Min. water temperature inlet: 3 °C

Water temperature outlet: 15 °C

Flow[l/h]

Capacity level Cl2 (equivalent)

[g/h]

Heating capacity

[kW]Type

Power consumption

[kVA]Flange

Fuse rating

[A]

Weight[kg]

Product number

HeaterControl panel

HeaterControl panel

Installation set*

600 5000 8 HF/SE-10 10.5 DN 25 20 45 40 98865596 98865606

98865616900 7500 13 HF/SE-15 16 DN 25 35 46 50 98865597 98865607

1200 10000 17 HF/SE-20 21 DN 25 50 47 70 98865598 98865608

1800 15000 25 HF/SE-30 31.5 DN 50 63 63 70 98865599 98865609

988656172400 20000 34 HF/SE-40 42 DN 50 80 73 70 98865600 98865610

3600 30000 50 HF/SE-60 63 DN 50 2 x 63 78 80 98865601 98865611

5100 45000 71 HF/SE-95 100 DN 80 2 x 100 135 100 98865602 9886561298865618

10200 2 x 45000 142 HF/SE-175 184 DN 80 4 x 100 195 150 98865603 98865613

20400 4 x 45000 285 HF/SE-345 363 DN 100 6 x 125 320 250 98865604 9886561498865619

40800 8 x 45000 570 HF/SE-560 588 DN 100 8 x 125 495 400 98865605 98865615

Salt capacity [kg]

Diameter[m]

Height[m]

Inlet Outlet

Gravel (4-8 mm) required for a gravel bed height of 200-400

mm[m3]

Product number

2300 1.8 1.3 DN 25 DN 32 0.5 - 1 99380223

3800 2.3 1.3 DN 25 DN 32 0.8 - 1.6 99380183

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Selcoperm SES3

Acid cleaning station on a trolleyThe Selcoperm electrolyser provides the acid cleaning station with the supply voltage by means of a special plug. The acid cleaning station is controlled via the touchscreen on the Selcoperm electrolyser.

The acid cleaning station is pre-assembled on a trolley for acid cleaning of the electrodes.

Features• 300-litre acid tank with collecting tray

• DMX 460-4 dosing pump with single-phase motor (230 V, 50 Hz)

• Equipment for hydraulic and electrical connection to the Selcoperm electrolyser

Overview

Fig. 13 Acid cleaning station on a trolley

Acid cleaning station for wall-mountingThe acid cleaning station is pre-assembled and ready for mounting on a wall.

Features• With foot valve and 10 m hose for the connection to

the Selcoperm electrolysis system and an external acid tank

• Without tank, trolley and collecting tray

Overview

Fig. 14 Acid cleaning station - wall mounted

DescriptionProduct number

Acid cleaning station on a trolley 98865693

TM

06

96

45

26

17

Pos. Description

1 Collecting tray

2 Trolley

3 Acid tank, 300 l

4 Return flow line

5 Special plug for connection to Selcoperm electrolyser

6 3-way ball valve

7 Dosing pump

8 Connection to Selcoperm electrolyser with manual valve

9 3-way ball valve

10 Drain valve

11 Pressure relief valve

3

4

2

1

11

9

10

8

7

6

5

DescriptionProduct number

Acid cleaning station for wall-mounting 99398520

TM

07

08

19

06

18

Pos. Description

4 Return flow line

5 Special plug for connection to Selcoperm electrolyser

6 3-way ball valve

7 Dosing pump

8 Connection to Selcoperm electrolyser with manual valve

9 3-way ball valve

11 Pressure relief valve

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Selcoperm SES 3

Gas warning systemAs a part of the safety concept, a gas warning system for hydrogen gas (H2) must be installed at the installation location.

A self-contained gas warning system with at least two sensors for each Selcoperm electrolyser must be used. The gas warning system has to provide two potential-free output contacts, which are directly connected to the Selcoperm electrolyser to shut down the whole system in case of gas leakage. The contact type of the output contact must be NC (normally closed) to ensure the safety shutdown even in case of wire breakage.

Grundfos provides a suitable gas warning system meeting all these requirements. It provides the information needed at a glance via a comprehensive display and LEDs showing the status with different colours. The system can operate stand-alone or interface with alarm devices and control systems using several outputs.

Fig. 15 Gas warning system and sensor

Features• Wall-mounted IP65 control panel with simultaneous

display of up to four gas sensors. Ambient temperature up to 55 °C.

• Sensors selectable with local calibration directly on the sensor or with remote calibration module

• Output connection for one or two audible or visual alarms, 5 A, 24 VDC

• Potential-free contacts rated 5 A, 250 VAC (non-inductive) for Alarm 1, Alarm 2 and Fault

• 8 output relays, configurable to different alarms

• Optionally extendable with further relay modules

• Operates with 24 VDC external power supply as a standard. Optional internal power module for use with 110-240 VAC, 50/60 Hz, 2 A can be supplied. A local UPS (Uninterruptible Power Supply) has to be provided.

• Multi-language PC software to set parameters

* Local legislation may restrict shipping

TM

06

18

05

13

15

DescriptionProduct number

4-channel gas warning controller 99393814

Internal power module 110-240 VAC, 50/60 Hz, 2 A 98865624

PC software with adapter cable 98865625

Hydrogen sensor, range 0-100 % LEL, local calibration 98865626

Hydrogen sensor, range 0-100 % LEL, remote calibration 98865627

Calibration gas 2 %, bottle with regulating valve* 98865629

Combined horn and light alarm, 24 VDC 98037506

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Selcoperm SES4

4. Accessories

Maintenance kitsThese maintenance kits comprise the diaphragm and valve parts for the maintenance of the brine pumps in the brine dosing station. One kit is required for each pump.

Handheld conductivity measuring device

Features

• Long-living 2-pole graphite measuring cell

• Display alternatives: TDS, salinity and temperature

• Automatic temperature compensation

• Low current consumption

• Adjustable

Fig. 16 Handheld conductivity measuring device

Technical data

Order data

Test kitTest kit for SES, comprising:

• Measuring cylinder

• Total hardness test for titrimetric determination of the water hardness

• Thermometer

• Spindle for specific gravity measurement

• Titration set for measurement of the chlorine concentration in the sodium hypochlorite solution

• Operating instructions

Fig. 17 Test kit

Compact photometer DIT-L• For quick determination of the concentration of

chlorine, chlorine dioxide or ozone as well as the pH in water.

• For details, please see the DIT-L data booklet.

Fig. 18 DIT-L photometer

Description SES type Pump typeProduct number

Maintenance kit for brine pump

SES-5000

DDA 200-4 99151342SES-7500

SES-10000

SES-15000

SES-20000 DME 375-10 96520380

SES-30000DME 940-4 96520391

SES-45000

TM

06

46

74

08

16

Measuring ranges

Conductivity 0.0 ... 100.0 mS/cm

Temperature -5.0 ... +100 °C

Accuracy

Conductivity, TDS, salinity± 0.5 % of reading± 0.5 % full scale

Temperature ± 0.3 K

Power supply

Battery (included) 9 V battery, type IEC 6F22

Power consumption < 1.5 mA

DescriptionProduct number

Handheld conductivity measuring device 98842506

TM

06

46

75

08

16

DescriptionProduct number

Test kit 98842487

TM

06

18

07

30

14

Parameter Measuring range

Chlorine 0.01 - 6 mg/l

Chlorine dioxide 0.02 - 11 mg/l

Ozone 0.02 - 2 mg/l

pH value 6.5 - 8.4 pH

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Selcoperm SES 5

5. Grundfos Product Center

All the information you need in one place Downloads

Performance curves, technical specifications, pictures, dimensional drawings, motor curves, wiring diagrams, spare parts, service kits, 3D drawings, documents, system parts. The Product Center displays any recent and saved items - including complete projects - right on the main page.

On the product pages, you can download installation and operating instructions, data booklets, service instructions, etc. in PDF format.

"SIZING" enables you to size a pump based on entered data and selection choices.

Online search and sizing tool to help you make the right choice.

http://product-selection.grundfos.com

"REPLACEMENT" enables you to find a replacement product. Search results will include information on the following:

• the lowest purchase price• the lowest energy consumption• the lowest total life cycle cost.

"CATALOGUE" gives you access to the Grundfos product catalogue.

"LIQUIDS" enables you to find pumps designed for aggressive, flammable or other special liquids.

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GRUNDFOS A/S DK-8850 Bjerringbro . DenmarkTelephone: +45 87 50 14 00www.grundfos.com

98721404 0218

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