Focus on

Wastewater treatment

LINAK.COM/TECHLINE

Advantages of linear electric actuator systems

Pneumatic system- Complex system of compressor, pumps, valves, filters,lubricators, flow controls etc.
- Difficult to control the linear position- Requires routine maintenance- High energy consumption

VS.
Rotary actuator/gear- Heavy and bulky- Requires routine maintenance- Installation and replacement is doneusing a craneVS.
Electric actuator system- Simple system of actuator, control andpower connection- Maintenance-free- Low energy consumption- Lightweight- DIY installation

2

Reliable and optimised solutions for wastewater treatment

In the wastewater industry easy control and monitoring are key elements
for ensuring optimal day-to-day running of wastewater treatment facilities.
LINAK® actuators provide easy to monitor automation for a wide rangeof applications within this industry, which ensures a reliable operation in
the facility in that the operator knows if the valves are running optimallyaccording to their position.
An electric movement solution from LINAK is easy and simple to install andcan be used for several different types of valves, e.g. slide gate, sluice gate/penstock, gate and knife gate valves that are mounted in wells and aroundthe wastewater facilities. Also, when using a LINAK actuator solution highservice costs are avoided because the actuators are maintenance-free.
With a LINAK actuator it is possible to control valves over long distances
using an internal communication and feedback system. The system canalso connect with SCADA. This ensures that the valves can open and close
variably, leading the wastewater in the right direction. Furthermore, if thecontrol system is down, it is possible to operate the actuator manually.

A LINAK system has many advantages:• Easy to install and to operate (by means of hand controls,remote controls or switches)• Compatible with various PLC systems – no need for extra backup• Maintenance free
• Built-in feedback• Low operating costs• Low standby power consumption• Robust and reliable solution well-suited for operation in very harshenvironments (IP69K)• Offers a good price/performance ratio compared to pneumatics• An environmentally friendly solution• A complete movement solution• High self-locking ability, also when the actuator is turned off• Precise position feedback and accurate variable control over accelerationand velocity

LINAK as your partner
We do not want to be merely another supplier to our customers. We want tobe your partner.
It is important to us that your wastewater applications work relentlessly
and we know that many applications often require 100% uptime - because
any failure can lead to harmful or costly disruptions. All our actuators havegone through extensive testing so you can rest assured that your TECHLINE®
actuator solutions will do the job no matter what.
Furthermore, all members of the TECHLINE team of engineers and consultants
have vast product and application expertise.
So, when partnering with LINAK you get more than just a product in yourhands. It is our goal to create added value to our customers by offering
innovative solutions, extensive knowledge, world-class production and global
presence.

LINAK offers service
worldwide
Please contact your local LINAK office withyour enquiry

3

What LINAK actuators do forwastewater treatment applications
Electric actuator solutions from LINAK® provide precise and smooth motion
control for wastewater treatment plants. For industry valves (slide-, sluice-,gate- and knife gate valves ) used on sludge heat exchangers, decanter
centrifuges, sand washers, aeration tank blowers and tilting weirs, LINAK
actuators improve automation performance.
The actuator systems offer simple installation with few components and aneasy ‘all in one package’ solution.
Furthermore, their multiple and advanced feedback options ensure a reliable
and high level of performance.
All these advantages combined provide cost-efficient automation for
wastewater treatment facilities.

45

LINAK systems for valves and gates

LINAK® knows the market and the demands that utility companies and valve
producers have for movement solutions for valves.
For many years LINAK has been a supplier of electric movement solutions forindustries requiring solutions that are able to work relentlessly in extremely
harsh environments.
This is why our products are well suited as valve actuators which are often
mounted in demanding environments.

Sluice gate
A LINAK solution for sluice gates can becontrolled over long distances due to its
built-in communications and feedback
system. The solution ensures that the sluicegate can open and close variably.

6The battery backup is an optional
add-on ensuring a fail-safe operationin case of power cut-offs.

Knife gate valve
The knife gate valve can be mounted
on various wastewater handling
applications. LINAK has taken an
innovative approach to the control of theactuator by designing an external control
box which is easy to access - no matter
how and where the actuator and valve
are installed.

The Water Valve Control
Unit (WCU) ensuresa reliable connection
to the wastewater
treatment plant’s
SCADA system, making
remote control of theactuator easy.

7What LINAK actuators do for hatches and weirs

One of the advantages of using a LINAK® actuator for the tilting weir is thesimple installation of the electric system, which can be fitted to an alreadyexisting tilting weir solution without having to make a completely newsolution design.
It is also easy to change the position settings on the actuator to ensure acorrect flow of water from the tilting weir.
Furthermore, with this maintenance-free and easily adjustable actuator
solution service is not necessary, and position adjustments can be made by
the wastewater facility’s own technician.
Hatches are seen on several wastewater applications for instance disc fillers,
drum fillers and decanter centrifuge. With LINAK actuators it is possible tohave a simple one-patch-solution that can lift a large hatch in parallel.

Hatch

Opening and closing the hatch for easy
access to the disc filters

8This will create greater accessibility to for instance the disc filters, providing
easier service and increased operational efficiency.
Service is also made easier with the internal feedback of LINAK actuators,
that allows the user to make different position settings for the system.
E.g. the hood covering the disc filters can be set to a position for regular
maintenance of the filters, and a position for when the filters need to bechanged.

Tilting weir

Adjusting the tilting weir to ensure a
correct flow of water

Hatch

Raising and lowering
the hatch of thedecanter centrifuge

9What LINAK actuators do for clarifier cleaning

For the clarifier LINAK® actuator systems offer a maintenance-free ‘all in one
package’ solution that is simple to install and operate.
With its small built-in dimensions the actuator can easily be fitted to the topof the brush for the purpose of raising and lowering the brush for de-icing or
cleaning the surface of the basin edge.
Using temperature sensors together with the actuator will ensure a very
reliable automation without the need for manual adjustment or externalcontrol. Furthermore, the feedback system of the actuator makes it possible toalways read out the position of the brush.

BrushRaising and lowering thecleaning and de-icing brush

1011

Explore the rich technology behind actuators

At the Actuator Academy™, you will find a library of videos and information about actuator
components, actuator testing, and intelligent actuator control.
Find out what you should expect of a good industrial actuator, what affects its performance andefficiency, and how to best utilise your linear motion actuator.
We hope to inspire you and ultimately make you wiser on the moving electric revolution weare all part of.
Happy exploring!

Check out theActuator Academy
LINAK.COM/ACTUATOR-ACADEMY

12

Smart movement for wastewater treatment

A LINAK® IC actuator with built-in controller
reduces the number of external components
and the need for a third-party supplier for
power electronics.
It also offers a comprehensive range ofinterfaces and gives you access to productivity
enhancing data - all delivered by a single
supplier you can trust.
By helping you move smarter at every stage ofyour application process, from development,
installation and integration to tailored
movement and improved productivity, ourIC actuators add value across the board.

Choosing an IC actuator for your application is a smart move inmany ways:• Reduced complexity for faster development and production• Flexible integration with a variety of industrial interfaces• Data monitoring that minimise downtime and boost productivity

For more information on IC,
please visit LINAK.COM orscan the QR code.

• Benefit from one single supplier

13

Actuators for wastewater treatment

Operating temperatures between -40oC to +85oC make them fitfor work in numerous settings.

LINAK® industrial actuators offer a versatile array of movement
solutions for wastewater treatment.
With thrusts up to 15,000 N, max speeds up to 160 mm/s,and strokes between 20 and 999 mm, the actuators are highly
adaptable for a wide variety of applications.
Industrial actuators with heavy-duty aluminium housings are very
suitable for use in corrosive environments. Having been thoroughly
salt spray and chemical resistance tested and approved for
ratings up to IP66 and IP69K static, these actuators will work reliably
for years, even when exposed to salt, water, wind, and sun.

Actuator LA36

14Actuator LA33Actuator LA25

Accessories

Flange Mounting Bracket
The Flange Mounting Bracket serves an easy flange mounting ofLINAK® electric actuators on industrial valves typically used inwastewater treatment facilities. The bracket interface dimensions arein accordance with the industry standards ISO 5210 and ISO 5211, andit fits with the flange types F07 and F10.

Features:• Flange mounting possibilities• Surface treatment: Stainless steel• Compatible with: LA36, LA37

Facts:• Bracket for flange mounting of actuators• In accordance with ISO 5210 and ISO 5211
• Flanges F07 and F10Scope of application:• Valves

15

Accessories and controls

Water valve control unit
WCU-Basic: Analogue/DigitalWCU-BUS: Profibus
Features for WCU-Basic:• Endstop signals• Controlled with an analogue 4-20 mA signal or digital on/off signal• 4-20 mA feedback signal• Can be remotely or manually controlled• Ready signal for auto mode
• Signal for overcurrent and manual operation• Display showing actual valve position (0-100%)(*)

Features for WCU-BUS:• Available with Profibus as a standard or as an add-on

Battery back-up
WCU-UPS
Features for WCU-UPS:• 24V DC power supply• Automatic charge and control of battery level• Fail safe positioning• Output: 5 A continuous		
12 A for 5 min.		
15 A for 10 sec.		
(*)(*) “The specified product is a third party product that is produced by third party and distributed by LINAK
as a supplement to the existing LINAK product range. It is the responsibility of the product user to determine the suitability of the product for a specific application. LINAK will at point of delivery replace/repair
defective products covered by the warranty if promptly returned to LINAK.”

16Built by market leading experts,
using state-of-the-art technologies andperfected production methods, you canexpect the same quality worldwide.

Innovation is in our core. We takethe lead and have the courage tomake it real.

We are responsible in what we do –towards customers, employees andenvironment. Creating trust is a naturalpart of who we are.

From global presence to local
understanding. We believe inworld-wide support and being
close to our customers.

17

Testing programme

In each industrial application, the actuator is just one
component of many, but at LINAK® we fully appreciate that
it is of utmost importance to you and your customers. Nota single actuator leaves the factory until it has undergone a
100% function test.
Depending on the actuator type, various tests have been
carried through. Please consult your local LINAK office or takea look at the actuator data sheet in question to get a thoroughtest overview.
This is your guarantee that a solution based on LINAKTECHLINE electric actuator systems is a solution that will work
reliably for years and years.

Climatic tests:

18“Our actuators must never malfunction.
Therefore, it is important that all our products
are tested inside and out, and to the extreme
in a wide range of tests.”

In the climatic test the actuators are tested to operate in extreme
temperatures as well as to endure rapid changes in temperature.
In a dunk test, the actuators have to withstand repeating temperature fluctuations between +85oC to -40oC and still maintain fullfunctionality and ingress protection.

- Claus H. Sørensen, Director R&D

EN60529-IP6X- Dust
EN60529-IPX6- Water
ISO16750- IP69K- High pressure cleaning
IEC60068-2-3- Moisture storage
IEC60068-2-30- Operation in moisture
ISO16750-4:2010- Dunk test
EN60068-2-52- Salt spray
BS7691 Section 6.11.2.4 - Chemicals

Electrical tests:

Mechanical tests:

All electrical parts are tested i.e. power supply, power and signals
cables, control signals etc. Electrical immunity is tested according toindustrial standards i.e. for radio noise, electrical discharge and burst.*

Vibration: The actuator must withstand continuous
vibration in three directions.
Shock: The shock test puts the actuator through3 shocks of up to 50 G in each of six directions.
Bump: The actuator receives bumps of up to 30 G
in each of six directions several hundred times.

EN/IEC 61000-6-4
EN/IEC 60204
EN 50121-3-2
94/25/EC
EN/ISO 13766
EN/IEC 61000-6-2
2004/104/EC
EN/ISO 14982
EN/ISO 13309- Generic standard emission industry- Electrical equipment of machinery- Railway applications - Rolling stock apparatus- Recreational crafts directive- Earth moving machinery- Generic standard immunity industry- Automotive Directive- Agricultural and forestry machines- Construction machinery* These tests do not apply to third party products!

EN60068-2-64 (Fh) - Random vibration
EN60068-2-27 (Ea) - Shock
EN60068-2-29 (Eb) - Bump

Find out more about how we test
actuators to the extreme:linak.com/segments/techline/tech-trends/
testing/19

For further information, please visit our website:

LINAK.COM/BUSINESS-AREAS/VALVES/WASTEWATER-HANDLING/
LINAK® accepts no responsibility for possible errors or inaccuracies in catalogues, brochures, and other material. LINAK reserves the right to change its products without prior notice. LINAK cannot guarantee product availability andreserves the right to discontinue the sale of any product. User is responsible for determining the suitability of LINAK products for a specific application. All sales are subject to the ‘Standard Terms of Sale and Delivery’, available on
LINAK websites.
LINAK and the LINAK logotype are registered trademarks of LINAK A/S. All rights reserved.

LINAK.COM

Innovation is in our core. We takethe lead and have the courage tomake it real.

We are responsible in what we do –towards customers, employees andenvironment. Creating trust is a naturalpart of who we are.

From global presence to local
understanding. We believe inworld-wide support and being
close to our customers.
MA M9-02-532-I - 2021.10

Built by market leading experts,
using state-of-the-art technologies andperfected production methods, you canexpect the same quality worldwide.