Limit switches

Limit switches

Venttiilien rajakytkimet - valve limit switches
TU-B-II-Toimil-4_Fema limit switch

Media

Steam and condensate
Natural gas, biogas and biomethane
Process media
Cryogenic media
LPG
Gas and fuel

Manufacturers

Rotork
Sofis
Netherlocks
Emme Technology (Max-Air)

Technical specifications

Other names: valve limit switch, valve position indicator, signal box

What is a valve limit switch?

Using limit switches, the system can easily and reliably obtain, for example, valve open/close status data, which can be further transmitted electronically to the control system.

In mechanical models, a switch is installed on the valve yoke that opens or closes with the movement of the valve. In this way, information on whether the valve is open or closed is obtained.

The inductive switch sends a trigger signal when metal or another electrically conductive material approaches the sensing surface.

The operation of the magnetic switch is based on changes in the magnetic field when the valve yoke rises or falls.

Limit Switch Selection

Our program includes mechanical, inductive, and magnetic limit switches. We assist in selecting the limit switch that meets the application’s requirements, including for ATEX zones.

Netherlocks, part of the Sofis group, manufactures compact VPI open/closed limit packages, which can be installed on virtually any existing valve. Both on rotary-operating valves and on manually operated screw valves. Our installation service measures the necessary dimensions from the existing valve for the intermediary parts. After delivery, we proceed to install and set up the limit package.

Contact our representatives for more information.

Download Brochures

download

Max-Air BE41-BS42 Limit Switch Box

Lataa PDF
download

Max-Air BE45 SERIES Box Micro Limit Switch Box

Lataa PDF
download

Max-Air BE48 BS48 BM48 Ex Limit Swiches datasheet

Lataa PDF
download

Sofis VPI Position Indicator

Lataa PDF
download

Netherlocks VPI Position Indicator

Lataa PDF
download

Rotork Limit Switch Boxes

Lataa PDF

Level switches

Level switches

Pintakytkin - level switch KSR 9454
säiliön pintakytkimet - tank level switch
Pintakytkin_NRGS_9975
NRGS16-1_001_LR1

Media

Process media
Cryogenic media
LPG
Gas and fuel
Steam and condensate

Manufacturers

Aplisens
GESTRA
Intra-Automation

Technical specifications

Other designations: level switch

What is a level switch?

Level switches transmit information to the system when the liquid reaches a predetermined height. The system then controls the process based on this information.

Level switch selection

We assist in selecting a level switch that meets the requirements of the application. Contact our representatives for more information.

Our range includes float switches that can be installed from the top or from the sides. The float switch is a traditional and quite cost-effective method for performing an on-off level measurement. Vertical models are available with several limit switches.

A somewhat more modern method is electrode measurement. Its advantage is that it is maintenance‐free, as the electrode does not have any so-called moving parts. Electrodes are clearly suitable for higher temperatures than float switches, making them applicable, for example, in steam boilers.

If limit switches are sufficient for level control, the best solution is the GESTRA conductive electrode, which can provide up to four separate limit signals. A compact model is also available, in which four separate voltage-free changeover contacts are integrated into the electrode.

Conductive level switches based on conductivity measure the resistance when immersed in the liquid. They are used for conductive liquids. Applications include dry run protection, prevention of overfilling, and on-off level control.

Limit switches are also available for magnetically controlled level indicators, providing limit data in addition to a local display.

Download brochures

download

Aplisens Type ERH Level Switch datasheet

Lataa PDF
download

Intra-Automation Magnetically Controlled Liquid Level Indicator Type ITA

Lataa PDF
download

Intra-Automation ITA Magnetic Sensing Transmitter

Lataa PDF
download

Intra-Automation ITA Magnetic Multi-Float-Switch

Lataa PDF
download

GESTRA NRGS11-2 NRGS16-2 Level Monitoring Datasheet

Lataa PDF
download

GESTRA NRGS11-1 NRGS16-1 NRGS16-1S Level Monotoring Datasheet

Lataa PDF
download

WIKA Float Switch HSL-S HLS-P Datasheet

Lataa PDF
download

WIKA Float Switch FLS-S FLS-M FLS-P FLS-H

Lataa PDF

Level transmitters

Level transmitters

APR-2000ALWS-T2 level transmitter - pintalähetin -
Pintalahetin_Gestra_9468
Gestra NRGT26-1_02_LR
säiliön pintalähetin - tank level transmitter

Media

Process media
Cryogenic media
LPG
Gas and fuel
Steam and condensate

Manufacturers

Aplisens
GESTRA
Intra-Automation
Nuova Fima

Technical Specifications

Connections: available with various process connections
Other names: level transmitter

What is a Level Transmitter?

Level transmitters transmit information about the movement of the surface to the controller, which in turn directs control valves according to the given parameters.

Choosing a Level Transmitter

We help in selecting a level transmitter that meets the requirements of the application.

Capacitive Level Measurement

Capacitive level measurement is a common principle for measuring surface height in industry. The sensor and the tank form the two electrodes of a capacitor. The change in capacitance caused by the change in surface level is converted in the electronics into level information, and the sensor transmits a 4-20 mA signal to the system.

For continuous level measurement, GESTRA utilizes a capacitive electrode with an integrated active transmitter (output signal 4-20 mA) or a separate amplifier, whereby communication between the sensor and amplifier is in digital form. The GESTRA surface electrode is intended for liquids with a conductivity of at least 0.5 µS/cm. The sensors’ pressure/temperature class is max. 32 bar(g)/238°C, PN 40.

Pressure-Differential Based Level Transmitter

Pressure-differential transmitters and flange-mounted level transmitters are suitable for the same applications as electrode-type sensors, as well as for applications where, for example, non-conductive liquids, chemicals, etc. are measured, or where the required pressure/temperature resistance is too high for electrodes. Models available for connection to 4-20 mA Hart, Profibus PA, or FF-bus.

Magnetic Level Transmitter

The magnetic float transmitter is installed at the top of the tank or at the tank side. Various connection options are available. The magnet inside the float creates a magnetic field to which reed switches respond, enabling continuous level measurement.

Ask our contacts for more information about level transmitters.

Download Brochures

download

Nuova Fima ST LV

Lataa PDF
download

GESTRA DBL 810367 07 NRG26-40

Lataa PDF
download

GESTRA DBL 810194 09 NRGT26-1-NRGT26-1S

Lataa PDF
download

Intra-Automation Magnetic Level Sensing Transmitter Type ITA-T1S

Lataa PDF
download

APLISENS SG-25 SG-16

Lataa PDF
download

APLISENS APR-2000ALW

Lataa PDF
download

APLISENS SGE-25 SGE-16 Hydrostatic Level Probes datasheet

Lataa PDF
download

APLISENS APC-2000ALW

Lataa PDF

Level indicators

Level indicators

Magneettinen pintaosoitin - magnetic level indicator
kryogeeninen pinnanmittaus - cryogenic level indicator
säiliön pinnanmittaus - tank level measurement
Pinnanosoittimet - tank level measuring

Media

Process media
Cryogenic media
Natural gas, biogas and biomethane
LPG
Gas and fuel
Steam and condensate

Manufacturers

DIESSE
Hadro Techniek
Rochester Sensors
Intra-Automation

Technical specifications

Pressure classes: PN 6-320
Materials: AISI316, PVC, PP, PVDF
Suction materials: titanium, acid-resistant steel, plastic
Measurement range: 5000 mm/section max., longer ones are made from several parts
Media temperature: -50 °C…400 °C
Display: mechanical and/or electronic
Alarm limits: adjustable reed switches
Other: can be equipped with an analog transmitter using a reed switch chain
Other designations: level indicator

What is a Level Indicator?

A level indicator allows you to visually determine the level of the surface in a tank or inside a steam boiler. Although steam boilers are equipped with automated level monitoring with dry-heating protection, the law also requires a visual level display.

Selection of Level Indicator

We assist in selecting the level indicator that meets the requirements of the application. Below are four different models: glass tube indicator, reflective indicator, backlit indicator, and magnetic indicator.

In low-pressure tanks, it is most cost-effective to use a simple glass tube indicator.

If the pressures are higher, we recommend a robust reflective indicator.

In both of these models, the liquid level can be seen through the transparent measurement section in the indicator.

Glass tube, reflective, and backlit indicators are equipped with shut-off valves, with optional safety balls in case of glass breakage. Connections are flange or welded.

In a backlit level indicator, a light is added behind the indicator, making it easier to read the level.

In a magnetic level indicator, a float moves along with the level inside an acid-resistant/plastic tube. The magnet in the float rotates the slats on top of the level indicator. Insulated models and insulated with trace heating models are also available.

The advantage of the magnetic level indicator is its clear visual indication. The slats are either bright white or red, depending on the liquid level. With traditional level indicators, the glass tube becomes dirty over time and must be replaced as part of maintenance.

It is also easy to extract an electrical switch signal or mA signal to systems from the magnetic level indicator. ATEX-rated models are also available.

Download Brochures

download

Intra-Automation Magnetically Controlled Liquid Level Indicator Type ITA

Lataa PDF
download

DIESSE Glass Level Gauge DS_LG-RBF_GR18

Lataa PDF
download

Intra-Automation ITA Magnetic Indicator

Lataa PDF
download

DIESSE Glass Level Gauge Reflex Type

Lataa PDF

Pressure transmitters

Pressure transmitters

painelähetin - pressure transmitter
ST18
painelaite
Nuova Fima STSA

Media

Process media
Cryogenic media
Natural gas, biogas and biomethane
LPG
Gas and fuel
Steam and condensate

Manufacturers

Aplisens
Nuova Fima

Technical specifications

Pressure: up to 600 bar
Other: ATEX and SIL2/3 classifications available
Other names: pressure transmitter

What is a pressure transmitter?

The function of pressure transmitters is to convey the electrical signal derived from the system pressure to the controller, which subsequently adjusts the process in a predetermined manner. The pressure transmitter also provides the compensation and calculation unit with information on the actual pressure value, based on which the density of saturated steam is calculated or the volumetric flow of gaseous media is converted to normal cubic meters, Nm3.

Selecting a pressure transmitter

Our range includes Aplisens and Nuova Fima pressure transmitters. If the media are demanding, the Aplisens transmitters can be equipped with various diaphragm constructions. Meanwhile, Nuova Fima pressure transmitters are more cost-effective fixed-range devices.

We assist in selecting the pressure transmitter that meets the requirements of your application. Ask our contacts for more information.

Download brochures

download

Aplisens Smart Pressure Transmitter PCE-28SMART

Lataa PDF
download

Aplisens Smart Pressure Transmitter APC-2000ALW

Lataa PDF
download

Nuova Fima Pressure Transmitter ST18

Lataa PDF
download

Nuova Fima Ceramic Pressure Transmitter ST-MA-C

Lataa PDF

Temperature sensors

Temperature Sensors

Media

Natural gas, biogas and biomethane
LPG
Gas and fuel
Steam and condensate
Process media
Cryogenic media

Manufacturers

Aplisens

Technical Specifications

Other names: temperature sensors

What is a Temperature Sensor?

Temperature sensors transmit electrical information about the system’s temperature data to, for example, a monitoring room or controller, which adjusts the process in a predetermined manner. In gas measurement, the temperature sensor is used to provide the compensation and calculation unit with the actual temperature value, based on which the volumetric flow of gaseous media is converted to normal cubic meters, Nm3.

Selection of Temperature Sensor

We assist in selecting a temperature sensor that meets the requirements of the application.

Our selection includes Pt 100 temperature sensors as well as thermocouples for industrial use. These can also be equipped with a transmitter (4-20 mA, Profibus PA, FF).

Ask our contacts for more information.

Download Brochures

download

Aplisens Rail-Mounted Temperature Transmitters Type LI-24L

Lataa PDF
download

Aplisens Temperature Sensors CT-TC

Lataa PDF
download

Aplisens Temperature Sensors CT-RTD

Lataa PDF
download

Aplisens Head-Mounted Temperature Transmitter Type AT-2

Lataa PDF
download

Aplisens Smart Temperature Transmitter APT-2000ALW

Lataa PDF
download

Aplisens Rail-Mounted Temperature Transmitters Type LI-24G

Lataa PDF

Thermometers

Temperature gauges

Media

Cryogenic media
Natural gas, biogas and biomethane
LPG
Gas and fuel
Steam and condensate
Process media

Manufacturers

Nuova Fima

Technical details

Other designations: temperature gauge

What is an industrial thermometer?

Temperature measurement provides information on the temperature of the process medium, on the basis of which the process is monitored or controlled.

Selection of the temperature gauge

We help in selecting a temperature gauge that meets the requirements of the application.

Nuova Fima’s temperature gauges are well suited for demanding industrial applications. We have selected reverse-mounted gauges as our stock models, with a dial size of 100 mm, enclosures in AISI 304 and protective pockets in AISI 316. Special gauges are available upon request.

Threaded and welded protective pockets keep the pressure behind the protective pocket even in situations where the temperature gauge is removed from the system, for example during replacement.

Contact our representatives for more information.

Download brochures

download

Nuova Fima TB8 bi-metal thermometers DN100-150

Lataa PDF
download

Nuova Fima W93 bar-stocked thermowells

Lataa PDF
download

Nuova Fima W70 bar-stock thermowells

Lataa PDF
download

Nuova Fima W10-20 built-up thermowells

Lataa PDF
download

Nuova Fima TG8 inert gas thermometers DN100-150

Lataa PDF

Pressure gauges

Pressure gauges

Media

Gas and fuel
Steam and condensate
Process media
Cryogenic media
Natural gas, biogas and biomethane
LPG

Manufacturers

Nuova Fima

Technical specifications

Other names: pressure gauge

What is a pressure gauge?

Pressure gauges are display-based meters, where the information about the system’s pressure is shown on the dial.

Pressure gauge selection

We assist in selecting a pressure gauge that meets the application requirements.

NUOVA FIMA’s pressure gauges are well suited for demanding industrial applications as well as the food industry.

For the food industry, pressure gauges can be equipped with hygienic fittings.

From our extensive range, we have selected dampened gauges for our stock with dial sizes of 100 and 160 mm in diameter, housings in AISI 304, and wetted parts in AISI 316. Pressure gauges are also available in your selection with ATEX approvals.

Pressure gauges can be equipped with alarm switches.

Ask our contact persons for more information.

Download brochures

download

Nuova Fima MGS20 DN100-150

Lataa PDF
download

Nuova Fima MGS18 DN100-150

Lataa PDF
download

Nuova Fima MD15 DN100-150

Lataa PDF
download

Nuova Fima MGS18-19-36-ATEX_DS100-150

Lataa PDF

Differential pressure transmitters

Differential pressure transmitters

Aplisens APR-2000ALWVM3 paine-erolähetin - pressure transmitter
Aplisens APR-2000ALWS-T2

Media

Process media
Cryogenic media
Natural gas, biogas and biomethane
LPG
Gas and fuel
Steam and condensate

Manufacturers

Aplisens

Technical specifications

Other names: differential pressure transmitter

What is a differential pressure transmitter?

Differential pressure transmitters measure the pressure difference and transmit electrical data to the system. For example, in critical applications, the differential pressure measurement can be made across the system’s filter. If the filter begins to clog and the pressure difference increases, an electrical alarm is sent to the system for maintenance procedures.

Because differential pressure transmitters are very precise and measure extremely small pressure differences, they can also be used for level measurement, which is based on the hydraulic head of the liquid. Especially in high-pressure systems, this pressure-difference-based measurement is an excellent alternative to other level measurement methods.

In flow measurements based on pressure difference, the differential pressure transmitter is also an essential component for measurement accuracy.

Selection of the differential pressure transmitter

We assist in selecting a differential pressure transmitter that meets the requirements of your application. Ask our contacts for more information.

For dirty media, different diaphragm intermediaries are used, which are also available with wash valves. For the food industry, pressure transmitters can be equipped with hygienic connections.

APLISENS programmable digital differential pressure transmitters equipped with a self-sealing sensing element are suitable for many applications in industry. A digital display is included as standard, allowing the device to be set up in the field without a programming device. The transmitters can also be supplied pre-assembled with 3- or 5-way valve blocks.

Download brochures

download

Aplisens APR-2000ALW Smart Differential Pressure

Lataa PDF
download

Aplisens PRE-28 Smart Differential Pressure Transmitter

Lataa PDF
download

Aplisens Smart Differential Pressure Transmitter With Direct Diaphragm Seals

Lataa PDF

Assemblies for pressure and flow control

Assemblies for pressure and flow control

Media

Process media
Cryogenic media
Natural gas, biogas and biomethane
LPG
Steam and condensate
Gas and fuel

Manufacturers

KÜHME Armaturen

Technical specifications

Other: manufactured according to customer’s requirements
Other names: pressure and flow control skid

What are assemblies for pressure and flow control?

Factory-made valve systems include everything required in one package. The unit is built in the factory with purpose-designed valves, actuators, positioners, filters, measuring instruments, safety devices, and a control cabinet. The valve skid is delivered to the customer as a complete, ready module with CE approval.

Selection of skid equipment

Valve assemblies can be used, for example, in the facility’s fuel supply station, gas pressure reduction, boiler burner control, gas turbine or piston engine feed, fuel return line, refueling station, or filtration unit.

The skid is designed and manufactured according to the customer’s requirements. The sizing is adapted to the facility. The skids are built to the desired standards (PED, EN, ASME, ATEX, SIL).