Time-tested technologies are used for mechanical temperature measurement. Such as bimetallic and manometric measuring principles made of various materials with scale ranges from -100 to +500 °C various classes accuracy and response time. Options for process connections, diameters and rod lengths allow you to choose suitable solution for any application conditions.

WIKA mechanical indicating thermometers with capillary provide simplicity and convenience during operation. All WIKA thermometers can be equipped with a protective sleeve if required. There are also various models of thermomanometers available for selection - a combined pressure and temperature meter (100.12, MFT, etc.).

WIKA A43 - Bimetallic thermometer for heating systems

The bimetallic thermometer model A43 was designed for simple measurements in heating systems.

The design is prefabricated, thanks to which it is possible to produce various combinations of body materials, nominal sizes, measuring ranges and rod lengths. This allows you to preserve the customer’s design without making additional changes.

The standard design of the A43 includes a thermowell that allows measurements up to a maximum pressure of 6 bar.

Model A43 is manufactured with accuracy class 2 in accordance with EN 13190, which ensures the required display accuracy for heating technology.

WIKA 46 – Bimetallic thermometer with sleeve, range up to +120 °C

The Model 46 bimetallic thermometer is used primarily in heating, air conditioning and refrigeration units for monitoring process temperatures.

To measure temperature, a bimetallic thermometer together with a protective sleeve is installed in the process. On the one hand, this protects the thermometer from damage, and on the other hand, replacing it does not require cleaning the heating system.

WIKA 50 Bimetal thermometer with sleeve, range up to +200 °C

Thermometer, Model 50 is intended for use in heating, air conditioning, ventilation and refrigeration engineering, for measuring ranges up to 200 °C. To measure temperature, a bimetallic thermometer is installed into a protective sleeve using a screw and placed in the process. This protects the thermometer from damage, on the one hand, and on the other hand, it is not necessary to replace it.
the process needs to be stopped.

WIKA 52 - Bimetallic thermometer for axial and radial process connections, range up to +500 °C

The bimetallic thermometer of this series was designed specifically for installation in pipes and tanks.

A bimetallic thermometer uses bimetallic plates as a measuring element. Bimetallic plates are metals that have different coefficients of linear expansion when measuring temperature. They are twisted into a helical spiral, the other end is fixed to a movable axis. When measuring temperature, the spiral rotates in proportion to the magnitude of the change, transmission occurs through the axis and then through the tube-sector mechanism to the pointer.

WIKA 70 - Liquid thermometer with capillary, stainless steel housing

Thanks to its universal design, the liquid thermometer of this type found wide application in mechanical engineering, in the refrigeration industry and in air conditioning systems. The liquid thermometer can be installed at almost all measuring points. The capillary model is used for measurements at points that are difficult to access or located at a considerable distance.

The body, capillary and rod are made of of stainless steel. For optimal adaptation to the measuring process, different capillary lengths are available, with maximum length up to 10mm and connection forms.

WIKA 32 – Industrial glass V-shaped thermometer

Industrial glass thermometers - Model 32 are mainly used in various industries, such as mechanical engineering, energy, and refrigeration.

The special feature of these thermometers is high accuracy and durability (due to the absence of mechanically wearing parts).

WIKA 100.12 - Thermal manometer, measuring pressure and temperature with one device

Thermal manometer with bimetallic system installed directly at the measuring point through the rod. The presence of a valve allows you to unscrew the measuring device without draining the water from the heating system. Thanks to the combination of a pressure gauge and a bimetallic thermometer, the measuring device finds a wide range of applications.

WIKA IFC - Pressure thermometer with capillary

The capillary thermometer model IFC is a universal pressure thermometer for mechanical engineering, refrigeration and food industries, as well as heating, ventilation and air conditioning systems.

Temperature measurement occurs due to the expansion of the thermometric liquid in the capillary.

This type of capillary thermometer is used to measure temperature in hard to reach places, as well as in places that are located at a considerable distance.

Thanks to its simple design and plastic housing, the capillary thermometer model IFC is an inexpensive and very reliable measuring instrument.

WIKA TF58, TF59 – Pressure thermometer with capillary

Liquid thermometer, models TF 58 and 59, are measuring instruments with a drum-type scale.

Different versions have different accuracy, scale range, dimensions, mounting and panel frame design.

WIKA MFT - Thermal manometer with remote line and capillaries, measuring pressure and temperature in one device

The thermomanometer is installed in the panel and allows you to measure pressure and temperature simultaneously. The thermomanometer has a compact design with a front flange and side latches, allowing for easy installation and ergonomic integration dashboards. The capillary simplifies the possibility of remote installation of the indicating part of the device and the measuring point.

The thermomanometer has a Bourdon tube as a sensing element for measuring pressure. A manometric thermometer filled with liquid is used to measure temperature. Liquid temperature filled pressure gauge thermometer converts the pressure change inside closed system hollow tube and capillary at temperature and transmits this rotation to the arrow.

This section presents manometric thermometers (gas-TGP, condensation (vapor-liquid)-TKP) showing: TGP-100M1, TKP100(100S), TKP60-3M, TKP-60S, etc.

TGP-100-M1- gas thermometer (T up to 400C, diameter 100mm, 1; 1.5%, capillary from 1.6 to 25m, thermal cylinder 160-400mm).
TKP-100-M1- thermometer showing condensation (T up to 300C, diameter 100mm, 1; 1.5%, capillary from 1.6 to 25m, thermal cylinder 160-400mm).
TKP-60/3M- pressure gauge thermometer indicating vibration-resistant (diameter 60mm, 1; 1.5; 2.5%, capillary from 1.6 to 25 m, thermal bulb 100, 125 mm, vibration resistance 5-700 Hz, IP53).
TKP-60/3M2- pressure gauge thermometer indicating vibration-resistant (diameter 60, 100, 160 mm, accuracy class 2.5%, capillary from 1.6 to 16 m, thermal cylinder 100 mm).
TKP-60S- manometric thermometer indicating condensation (diameter TKP60 - 60mm, capillary from 1.6 to 10m).
TKP-100S- manometric thermometer indicating condensation (diameter TKP100 - 100mm, capillary from 1.6 to 10m).

It is also possible to supply other brands of pressure gauge indicating condensation and gas thermometers.

Operation of thermometers in modes with pressures of the measured medium exceeding the standards established for them is possible only with the use of protective sleeves (up to 25 MPa (250 kgf/cm2)).

Axial bimetallic thermometer
Radial bimetallic thermometer designed for measuring the temperature of liquids and gases in heating and sanitary installations, in air conditioning and ventilation systems. The principle of operation of BT thermometers is based on the dependence of the deformation of the sensing element on the measured temperature. A bimetallic spring is used as a sensing element. A bimetallic spring is made of two firmly connected metal plates having different temperature coefficients linear expansion. When the temperature changes, the spring bends and rotates the thermometer needle. One end of the spring is fixed inside the rod, and the arrow axis is attached to the other.
Corrosion-resistant thermometer with axial connection
Corrosion-resistant thermometer with radial connection designed for measuring the temperature of aggressive liquids and gases. The principle of operation of BT thermometers is based on the dependence of the deformation of the sensing element on the measured temperature. A bimetallic spring is used as a sensing element.
The body and stem of the vibration-resistant thermometer are made of stainless steel. The thermometer can be equipped with a stainless steel sleeve
Corrosion-resistant thermometer with universal (swing-out housing) connection designed for measuring the temperature of aggressive liquids and gases. The principle of operation of BT thermometers is based on the dependence of the deformation of the sensing element on the measured temperature. A bimetallic spring is used as a sensing element.
Bimetallic clamp-on thermometer (thermometer with spring) designed to measure pipe surface temperature. The principle of operation of BT thermometers is based on the dependence of the deformation of the sensing element on the measured temperature. A bimetallic spring is used as a sensing element. The device body is made of corrosion-resistant steel.
Bimetallic corrosion-resistant thermometer with a needle-shaped stem (immersion thermometer) designed for measuring the temperature of thick, granular and viscous media. The principle of operation of BT thermometers is based on the dependence of the deformation of the sensing element on the measured temperature. A bimetallic spring is used as a sensing element. Bimetallic needle thermometers are used in agriculture, construction (including for measuring concrete temperature).
Technical liquid thermometer designed for measuring the temperature of non-aggressive liquid and gaseous media under vibration conditions in various industries within the range from -30 to +600 °C.
Thermometers consist of a capillary tube protected by a glass shell with a reservoir filled with thermometric liquid, a protective housing and a protective sleeve. The thermometer scale is marked on outer surface capillary tube. Top part The capillary tube (with a scale) is located in the housing, and the lower one (with a reservoir) is in the sleeve.
The body is made of anodized aluminum. The sleeve is made either of brass (for thermometers with an upper measurement range of up to 200 °C), or of nickel-plated steel (for thermometers with a measurement range of 0...600 °C), or of stainless steel (on request). Depending on the type of connection, two versions are produced: angular thermometer and straight thermometer.

An indicating thermometer is a device for measuring temperature at various industrial enterprises. Bimetallic thermometer (BT thermometer) refers to technical devices, intended for measuring the temperature of liquids and gases in heating and sanitary installations, in air conditioning and ventilation systems, as well as for measuring the temperature of granular and viscous media in the food industry.

The operating principle of a technical thermometer is based on the dependence of the deformation of the sensitive element (bimetallic spring) on ​​the measured temperature. The spring is made of two firmly connected metal plates, which have different temperature coefficients of linear expansion. When the temperature changes, the spring bends and rotates the thermometer needle. One end of the bimetallic spring is fixed inside the rod, and an arrow is attached to the other (except contact thermometers with a spring for mounting on a pipe, in which the bimetallic spring is wound around the axis of the contact element, and the arrow is fixed directly to the bimetal).

Depending on the type of connection of the rod to the body, BT thermometers are divided into rear (axial) and radial. The device body is made of chrome or stainless steel. Rod material: brass or stainless steel.

Modifications of thermometers

The BT industrial thermometer can be produced in several modifications, which differ in design and component materials:

• general technical series 211 with a chrome-plated steel body and a stainless steel rod;
• general technical special ones with a galvanized steel body and a spring for mounting on a pipe;
• general technical special ones made of stainless steel and a needle-shaped rod;
• corrosion-resistant 220 series stainless steel.

The bimetallic thermometer is equipped with a brass threaded protective sleeve. The exceptions are technical thermometers BT of corrosion-resistant design (series 220) with a stem, ring and body made of stainless steel, as well as general technical special thermometers (with a measuring element in the form of a needle and contact BT with a spring for mounting on a pipe). The 220 series corrosion-resistant industrial thermometer has a thread on the stem, and a protective sleeve is not included in the standard delivery.

For measuring and constantly monitoring the temperature of the working medium (liquid or gas) that is transported through pipelines or located in heating devices, special measuring instruments are used - thermometers. Such devices allow measurements to be taken with a high degree of accuracy, are durable and versatile. They are used in various fields, both in industry and in everyday life.

All thermometers are divided into several types:

• liquid;
• mechanical;
• electrical;
• optical.

In everyday life, the most widely used are bimetallic and liquid thermometers, which we offer to buy in Moscow from us.

Liquid thermometers

The operation of such a device is based on the ability of the liquid inside the capillary tube to expand as the temperature rises. For technical purposes the best option are kerosene thermometers. The working fluid in such thermometers is colored kerosene, which, unlike mercury thermometers, is considered the safest.

Mercury thermometers are practically not used for technical purposes, since during use there is a high probability of damage to the thermometer, and mercury vapor is very dangerous to human health. In terms of measurement accuracy, kerosene thermometers are in no way inferior to mercury thermometers.

The temperature measurement range of the kerosene thermometers presented on our website varies from 0 to 100 °C. The existing scale allows you to control the temperature with an accuracy of one degree.

The shape of a thermometer with a long stem is most convenient for determining the temperature of hot coolants.

Advantages of kerosene thermometers:

• very easy to operate and maintain;
• all elements measuring instrument sufficiently reliable and safe;
• compact, easy to install in the right place;
• high measurement accuracy.

Disadvantages of kerosene thermometers:

• low resistance to mechanical damage;
• possible stratification of liquid in the capillary due to sudden shaking.

Bimetallic thermometers

This type of thermometer is used not only in industrial enterprises, but also in everyday life, to determine the temperature in rooms, baths, saunas, swimming pools, greenhouses, heating systems, etc.

The design of such thermometers excludes the use of any technical liquids for measurement. Such a thermometer works due to the elastic deformation of two interconnected metal elements in the form of plates, which have different coefficients of thermal expansion. This thermometer is an excellent alternative to liquid temperature measuring instruments.

A bimetallic thermometer is used to determine the temperature of any medium - liquid, gaseous or granular. Temperature measurement range - - 70… +600 °C.

You can buy bimetallic thermometers in Moscow in two types:

1. Needle-shaped— have a special needle-probe for immersion in the working environment.
2. Pipe— control the temperature in heating systems and on the surface of transport pipes.

Advantages of bimetallic thermometers:

• allows you to perform precise measurements environment;
• long service life without performing routine maintenance. Not afraid of minor mechanical loads;
• convenient design that allows quick reading of temperature indicators;
• easy to install and does not require special conditions;
• All parts are made of corrosion-resistant materials.

Disadvantages of bimetallic thermometers:

• high inertia (some delay in temperature change readings);
• Higher cost when compared to liquid thermometers.

Thermometer frames

Such products are designed to protect glass thermometers from mechanical stress that can lead to damage.

The body of such a frame has an observation window to monitor the thermometer readings. The frame is fastened to parts and pipelines using screws. For installing frames in pipes with different diameter, special bosses are used. To reduce thermal resistance, the gap between the inner wall of the frame and the thermometer bulb is filled with a material with a high thermal conductivity coefficient.

Buy thermometers in Moscow various types, as well as frames for them, you can find in our online store at affordable prices.