EAEU HS Code 9031 Measuring or control instruments, devices and machines, not named or included elsewhere in this group; profile projectors

Pressure switch manufacturers

• Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH
• NINGBO REFWORLD IMPORT AND EXPORT CO.,LTD.
• CUSTOM CONTROL SENSORS INC., United States
• Kant Druckschalter GmbH
• Emerson Climate Technologies GmbH
• BITZER KUEHLMASCHINENBAU GMBH
• AIDRO SRL
• CML
• Hengsheng Industrial and Trading Co.,Ltd, China
• CUSTOMS CONTROL SENSORS INC, United States
• ALRE-GERMANY
• KOTO INDUSTRY LLC., United States
• CUSTOM CONTROL SENSORS INC.
• CUSTOM CONTROLS SENSORS INC–USA
• Danfoss
• Bailey Mackay
• Caleffi Spa
• ALRE, Germany
• Bosch Rexroth AG, Lohr
• Honeywell International Inc

Manufacturers from Russia

If you need pressure switch exporters, manufacturers - exportv.ru

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HS codes

9026 - Instruments or apparatus for measuring or controlling the flow, level, pressure or other variable characteristics of liquids or gases (for example, flow meters, level indicators, pressure gauges, heat meters), other than instruments and apparatus of heading 9014, 9015, 9028 or 9032:

In addition to instruments and apparatus described in more detail in other headings of the nomenclature, such as:
(a) Valves for pressure reduction and temperature-controlled valves (heading 8481);

(b) Anemometers (wind speed meters) and hydrological level gauges (heading 9015);

(c) Thermometers, pyrometers, barometers, hygrometers and psychrometers (heading 9025);

(d) Instruments and apparatus for physical and chemical analysis, etc. (heading 9027),

This heading covers instruments and apparatus for measuring or controlling flow, level, pressure, kinetic energy or other process variables for liquids or gases.

Instruments and apparatus of this heading may be equipped with recording, signaling or optical devices for reading the scale or with transmitters with electrical, pneumatic or hydraulic output signals.

Measuring or control devices usually contain an element that is sensitive to changes in the measured quantity (for example, a Bourdon tube, a membrane, an aneroid box block, semiconductors) and moves a needle or pointer. Some devices convert these changes into electrical signals.

Measuring and control instruments and apparatus of this heading, combined with taps, valves, etc., are classified as specified in the Explanatory Note to heading 84.81.

(I) Apparatus for measuring or controlling the flow or rate of flow of liquids or gases

(A) Flow meters. These instruments indicate the speed of flow (in units of volume or weight per unit of time) and are used to measure flow in both open channels (rivers, waterways, etc.) and closed pipelines.

Some flow meters use the principle of liquid meters of heading 9028 (turbine type, piston type, etc.), but most are based on the differential pressure principle. These include:

(1) Differential pressure flowmeters (fixed aperture). They essentially contain the following:

(i) a primary device (e.g., pitot or venturi tube, simple diaphragm, orifice plate, molded nozzle) to create the differential pressure, and

(ii) Differential pressure gauge (float type, diaphragm type, differential pressure type, oscillating ring scale or with flow transmitters, etc.).

(2) Variable area (variable aperture) flow meters. They usually consist of a graduated cone-shaped tube containing a heavy float, which is carried away by the current until the fluid flow between the float and the wall reaches equilibrium. For high pressure liquids, either magnetic flow meters (the position of an iron float in a non-magnetic tube is indicated externally by a magnet) or valve flow meters (an iris diaphragm mounted inside a tube connected in parallel to a small flow meter) are used.

(3) Flow meters that operate using magnetic fields, ultrasound, or heat.

This heading does not include:

(a) Hydrometric paddle wheels for measuring the speed of flow in rivers, canals, etc., falling in heading 90.15 as hydrological instruments.

(b) Apparatuses which simply indicate the total quantity of liquid discharged during a given period and which are classified as flow meters in heading 9028.

(B) Anemometers of special types, used for recording the speed of flow of air currents in mines, tunnels, chimneys, furnaces and pipelines in general, and consisting essentially of a paddle fan and a calibrated dial. In some devices, measured quantities are converted into electrical signals.

(II) Instruments and apparatus for measuring and monitoring the level of liquids and gases

Liquid level indicators and gas meters content indicators.

Liquid level indicators include:

(1) Float type. These instruments may give direct readings on a graduated column mounted on a float, or the effect may be transmitted to a dial pointer by cable and drum, or converted into an electrical signal.

(2) Pneumatic and hydrostatic types. Used to measure the level in pressure tanks using a differential pressure gauge.

(3) With two-color light, for boilers. These devices are based on the difference in refractive indices of water and steam. They consist of a set of lamps, color screens and an optical system and level that shows in different colors the corresponding heights of water and steam.

(4) Electrical type, based on, for example, changes in resistance, capacitance, ultrasound, etc.

This heading covers not only level indicators for closed reservoirs or tanks, but also indicators for open basins and canals (hydroelectric stations, irrigation systems, etc.).

To determine the contents of the gas meter, the level of the “bell” is measured, either directly or along the arrow of a dial scale to which the bell is connected by a cable or drum.

Instruments for measuring or monitoring the level of solid materials are not included here (heading 9022 or 9031, as appropriate).

(III) Instruments and apparatus for measuring and monitoring the pressure of liquids and gases

Pressure gauges, devices for measuring liquid or gas pressure. They differ from barometers in that the latter measure atmospheric pressure, while pressure gauges indicate the pressure of a liquid or gas in a confined space. The main types of pressure gauges are:

(1) Liquid pressure gauges (mercury, water or other liquids, or two immiscible liquids). The liquid is contained in a glass or metal tube; these gauges may be single column, U-tube, inclined tube, or multiple tube, or in the form of an oscillating ring balance.

(2) Metal pressure gauges. Similar to aneroids, they may have one or more membranes, an aneroid box, a Bourdon tube or spiral metal tube, or some other pressure-sensing element that directly moves the needle or changes the electrical signal.

(3) Piston pressure gauges. In them, pressure acts either directly or through a membrane on a piston, which is balanced or held by a spring.

(4) Electrical pressure gauges based on changes in electrical phenomena (eg resistance, capacitance) or the use of ultrasound.

Vacuum gauges for measuring very low pressures, including ionization gauges that use thermionic vacuum tubes (triodes). In them, positive ions, resulting from collisions of electrons with molecules of residual gas, are attracted to the negative electrode. Thermionic vacuum tubes (triodes), presented separately, are excluded (heading 85.40).

This heading also covers minimum and maximum pressure gauges. Differential pressure gauges used to measure pressure differences are of the following types: two-fluid, float, oscillating ring scale type, diaphragm, aneroid box, ball (without liquid), etc.

(IV) Heat meters

Heat meters measure the amount of heat consumed in an installation (for example, a hot water heating system). They essentially consist of a liquid flow meter, two thermometers located respectively at the inlet and outlet openings of the pipeline, and a counting and adding mechanism. This heading also includes thermocouple heat meters.

Small heat meters, installed on radiators in apartment blocks to help share central heating costs fairly, resemble thermometers and contain a liquid that evaporates when exposed to heat.

Parts and Accessories

Subject to the provisions of Notes 1 and 2 to this chapter (see general explanatory provisions), separately supplied parts and accessories for apparatus and accessories of this heading are also classified here. Examples include individual graphical recording devices (including those that record the readings of multiple measuring or control instruments), whether or not equipped with signaling, preselection or control devices.

Explanations for subheadings

9026 20 200 0 — 9026 20 800 0

These subheadings include tire inflators incorporating a pressure gauge and considered to be pressure gauges even if they are not intended to be connected to an external pressure source but have their own compressed air reservoir.

Contract for the supply of pressure switches

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18. Signatures of the parties.

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EAEU HS code 9032 Instruments and devices for automatic regulation or control

In accordance with Note 7 to this chapter, this heading includes:

(A) Instruments and apparatus for automatically controlling the flow, level, pressure and other variables of liquids or gases or for automatically regulating temperature, whether or not their operation depends on an electrical phenomenon varying with the factor to be automatically controlled; which are designed to bring this factor to the desired value and maintain it at this level, stabilizing it from disturbing influences, by continuous or periodic measurement of its actual value.

(B) Automatic regulators of electrical quantities and instruments and apparatus for automatic regulation of non-electrical quantities, the operation of which depends on an electrical phenomenon that varies depending on the controlled factor. which are designed to bring this factor to the desired value and maintain it at this level, stabilizing it from disturbing influences, by continuous or periodic measurement of its actual value.

(I) Instruments and apparatus for automatic control of flow, level, pressure and other variable liquids and gases and for automatic temperature control

Automatic control devices for liquids and gases and automatic temperature control devices form part of complete automatic control systems and consist essentially of the following devices:

(A) Devices for measuring the controlled variable (pressure or level in the tank, room temperature, etc.); in some cases a simple device that is sensitive to changes in a variable (a metal or bimetallic rod, a chamber or bellows containing an expanding liquid, a float, etc.) can be used instead of a measuring device.

(B) A control device that compares the measured quantity with the desired value and activates the device described in paragraph (C) below.

(B) Starting, stopping or operating device

An apparatus for the automatic control of liquids, gases or temperature within the meaning of Note 7(a) to this Chapter consists of these three devices forming a single unit or, in accordance with Note 3 to this Chapter, a functional unit.

Some instruments and apparatus do not contain devices that compare the measured value with the desired value. They are directly switched on by a switch, for example when a preset value is reached. which are designed to bring this factor to the desired value and maintain it at this level, stabilizing it from disturbing influences, by continuous or periodic measurement of its actual value.

Instruments and apparatus for automatically regulating flow, level, pressure and other variable liquids and gases or for automatically regulating temperature are connected to a device that carries out orders (pump, compressor, valve, furnace burner, etc.), restoring the prescribed value of the variable ( for example, a liquid measured in a tank, or a temperature measured in a room) or, in the case of a safety system, stops, for example, the operation of a machine or apparatus that is being regulated. This accessory, usually remotely controlled by a mechanical, hydraulic, pneumatic or electrical control, is to be classified in its own appropriate heading (pump or compressor: heading 84.13 or 84.14; valve: heading 84.81, etc.). If automatic control apparatus is combined with a device that carries out commands, the classification of the whole must be determined by basic rule of interpretation 1 or basic rule of interpretation 3(b) (see Part (III) of the General Explanatory Note to Section XVI and the Explanatory Note to heading 8481).

This set of goods includes:

(A) Pressure regulators or controllers, also called manostats. They consist essentially of a pressure-sensing device, a control device that compares (for example, by means of an adjustable spring) the regulated pressure with a prescribed value, and an electrical contact or small valve that causes the auxiliary circuit to operate.

This apparatus may be used, for example, to control a motor pump or compressor that supplies power to a pressure vessel, or to control the operation of pneumatic valve positioners or with a valve to regulate the flow, pressure, etc. of liquids and gases.

These pressure regulators are distinguished from the pressure-reducing valves of heading 8481 (sometimes also called “pressure regulators”).

(B) Level regulators or controllers for automatic level control.

In a float-type level controller, a float acts on a membrane or magnetic or other device that causes an electrical switch to operate; it, in turn, turns the pump, valve, etc. on or off.

In an electrode system, a liquid is connected to ground and forms part of a circuit. One pole of the transformer is also grounded. When the surface of the liquid comes into contact with the electrode, the circuits are closed and the relay is activated.

(B) Humidity regulators, sometimes also called “humidistats,” are devices for automatically regulating humidity in steam ovens, ovens, workshops, warehouses, etc.

Their operation depends on changes in the length of a tuft of hair or some other element sensitive to humidity, and usually they activate an alarm device or control an apparatus that can change the degree of humidity (steam valve, humidifier or dehumidifier, fan, etc.) .

(D) Thermostats are used to automatically regulate temperature. The main components of the thermostat are:

(1) A temperature sensitive element whose operation may be affected by the following:

(a) Changes in the shape of the bimetallic strip (straight, U-shaped or spiral, etc.);

(b) Vapor pressure of the liquid;

(c) Expansion of liquid or metal rod;

(d) Electrical resistor or thermocouple.

In thermostats with a bimetallic strip, the strip is installed inside the plunger tube or in the housing. In thermostats with a metal rod, the rod is installed in a plunger tube. In vapor pressure thermostats or liquid thermostats, the sensing element may consist of a folded membrane containing the liquid, or a system containing the membrane, a capillary tube and a bulb or elbow.

(2) A drum, disk, or other device for presetting the desired temperature.

(3) An actuating or actuating device which consists primarily, depending on the type of transmission used (mechanical, electrical or fluid driven), of a system of levers, springs, etc., a valve or an electrical switch. This device includes a signal or device (usually remote) such as a steam or hot water valve, boiler burner, air conditioner, fan, etc. that regulates the temperature.

Thermostats are used, among other things, to regulate temperature in homes and other buildings, in furnaces, ranges, boilers, water heaters, cold storage units, chimneys and flues, steam apparatus and cabinets, and other industrial or laboratory equipment.

(E) Temperature controllers for setting and maintaining set temperatures in electric heating devices (stoves, grills, filter machines, etc.) consist essentially of a bimetallic strip, which, bending from the heat from a shunt resistor in the power circuit, causes the switch to operate, by making or breaking the power circuit, the “on” and “off” periods (and therefore the temperature of the heating elements) are determined by the position of the manual control dial; the "full" position makes the bimetallic unit inactive, and thus, especially in the initial stages of heating, allows the heating element to operate continuously.

The following are excluded from this heading:

(a) “Thermostatic” or “thermostatic” evaporators, cabinets, etc., in which the temperature is maintained constant by a thermostat; they must be classified in their respective headings.

(b) Thermostatic adjustable valves (heading 84.81).

(E) Furnace air draft controls are used, for example, in central heating or air conditioning installations to automatically regulate air supply based on temperature, pressure, etc.

(II) Automatic regulators of electrical quantities and instruments and apparatus for automatic regulation of non-electrical quantities, the operation of which depends on an electrical phenomenon that varies depending on the controlled factor

Automatic regulators of this heading are intended for use in complete automatic control systems which are intended to bring any quantity, electrical or non-electrical, to a given value and maintain it, stabilize it against any disturbance by continuous measurement of the actual value. They consist essentially of the following devices:

(A) A measuring device (sensor, transducer, resistance probe, thermocouple, etc.) that determines the actual value of the controlled variable and converts it into a proportional electrical signal.

(B) An electrical control device that compares the measured quantity with the desired value and produces a signal (usually in the form of a modulated current).

(B) A starting, stopping, or tripping device (usually contacts, switches or circuit breakers, reversing switches, and sometimes relay switches) that supplies current to the starter in accordance with a signal received from the control device.

An automatic regulator within the meaning of Note 6(b) to this Chapter consists of the devices described in (A), (B) and (C) above, assembled together into a single unit or, in accordance with Note 3 to this Chapter, into a functional node

If they do not satisfy the definitions given above, these devices should be classified as follows:

(1) Electrical measuring devices are generally classified in headings 9025, 9026 or 9030.

(2) Electrical control devices are to be classified in this heading as partial and automatic control devices.

(3) Making, stopping and actuating devices are to be classified generally in heading 8536 (switches, relays, etc.).

Automatic controllers are connected to an electrical, pneumatic or hydraulic actuator that returns the controlled variable to the desired value. This actuator could be a detent that controls the gap between the arc furnace electrodes, a motorized valve that controls the flow of water or steam to the boiler, furnace, pulping machine, etc.

Actuators are to be classified in their own appropriate headings (adjustable detent: heading 8425; motorized or solenoid valve: heading 8481; solenoid positioner: heading 8505; etc.). If an automatic regulator is combined with an actuator, the classification of the whole must be determined either by fundamental rule of interpretation 1 or by fundamental rule of interpretation 3(b) (see Part (III) of the general provisions of the Explanatory Note to Section XVI and the Explanatory Note to heading 8481).

Electronic regulators operate on a strictly electrical principle rather than electromechanically. Their characteristic feature is semiconductors (transistors) or integrated circuits.

These controllers are used not only for electrical quantities such as voltage, current, frequency and power, but also for other quantities such as RPM, torque, traction, level, pressure, flow or temperature.

This heading does not include:

(a) Switches combined in one housing with a voltage regulator or current regulator and intended for use in connection with piston internal combustion engines are classified in heading 85.11.

(b) "Programmable controllers" of heading 8537.

Parts and Accessories

Subject to the provisions of Notes 1 and 2 to this chapter (see general explanatory provisions), parts and accessories of apparatus and accessories of this heading are also classified in this heading.

HS code for pressure switch

We have selected the appropriate codes for importing pressure switches into Russia. A correctly selected code will allow you to reduce payments.

• 8424900000 – PARTS OF MECHANICAL DEVICES
• 8481101908 valid from 10.21.2012 - OTHER PRESSURE RELIEF VALVES, FROM CASTING IRON OR STEEL, NOT FOR THE PRODUCTION OF AIRCRAFT ENGINES AND CIVIL AIRCRAFT
• 8536490000 — OTHER RELAYS
• 8536411000 — RELAY FOR VOLTAGE NOT MORE THAN 60 V FOR CURRENT NOT MORE THAN 2 A

Our specialists will select based on technical characteristics and reduce payments (the duty is reduced from 15% to 0% of the delivery cost). Attention, if the HS code is incorrectly selected, your cargo may be detained at customs and a fine may be issued.