Electric shut-off valve. Control valves

25h945p - a shut-off valve regulating with an electric actuator (EIM), is intended for use at central and individual heating points (central heating and power supply systems), in hot water systems, fresh air ventilation systems of greenhouses and in other areas of the national economy both for automatic regulation of technological processes, and as a locking device. The fluoroplastic seal in the shutter provides the required tightness in the closed position.

CJSC Avangard implements shut-off and regulating and regulating flanged valves of its own production, which are certified according to the requirements of the EAC and PCT. We are one of the leading manufacturers of control valves in Russia and provide 12 months warranty for all types of products

Types and advantages of control valves

Regulatory type flanged valves are used to control the flow of media by varying pressure and flow. Three-way control valves are used to mix or separate flows, and cannot replace shut-off valves. An intermediate place is occupied by shut-off and control valves that perform the functions of two types of valves.

In our catalog, control valves are represented by the following models:

One-week with an electric actuator (EIM) and with a membrane actuator (MIM), angular. These include both control valves and shut-off and control valves.
Twin-seat with an electric actuator (EIM) and with a membrane actuator (MIM).
Three-way control valves with MIM and EIM.

Cast iron SCH20, carbon steel 25L, alloyed 20GL and stainless 12Kh18N9TL are used for the production of water control valve bodies. Seals in the shutter of the control valves are “metal for metal” (stainless steel) and “soft” (fluoroplast-4, resistant to low and high temperatures, acids and alkalis).

We are engaged in the production of control valves, which are used depending on the model and size:

in heat points;
in heating and hot water supply networks;
in ventilation of greenhouses;
in gas pipelines.

Industrial control valves are in demand in process pipelines at food, chemical, oil refining and other industries. Gaseous and liquid substances — water, steam, oil fractions, air, oil products, and others — can be used as a transported medium.

Our control valves are characterized by the following:

long term of operation, which is at least 10 years;
reliability and structural strength;
ease of installation - the control valve is connected to the pipeline using flanges;
a wide range of temperatures of the transported medium - from -60 ° C to +425 ° C.

The nominal pressure in the pipeline at the installation site of the control valves can be 1.6 MPa, 2.5 MPa and 4 MPa, depending on the model and size.

It is profitable to buy control valves in Avangard SAZ

Our company has been manufacturing control valves for more than 20 years and ensures flawless products. The high quality of the Russian control valves of our manufacture is achieved thanks to multi-stage control at the enterprise and the professionalism of the employees.

Our factory for the production of control valves is equipped with modern high-tech equipment, which allows us to produce valves in accordance with Russian and international standards at an affordable price.

IN STOCK

Wednesday:
Medium pressure: 16 bar
Medium temperature: -20 ... + 150 ° С
Materials:
Type of drive:

DN 15 ΔP 16	RUB 30,072
DN 20 ΔP 16	31 575 rub.
DN 25 ΔP 16	31 997 rub.
DN 32 ΔP 16	37 176 rub.
DN 40 ΔP 16	38 556 rub.
DN 50 ΔP 16	40,283 rubles
DN 65 ΔP 16	49 776 rub.
DN 80 ΔP 7	upon request
DN 100 ΔP 3	upon request

IN STOCK

Wednesday: air, water, steam, gas, etc.
Medium pressure: 16 bar
Medium temperature: -20 ... + 150 ° С
Materials: body - cast iron, seal in the valve - PTFE
Type of drive: Electric drive Belimo (Switzerland)

KR310

Wednesday: air, water, steam, gas, etc.
Medium pressure: 16 bar
Medium temperature: -20 ... + 150 ° С
Materials: body - cast iron, seal in the valve - PTFE
Type of drive:

DN 15 ΔP 16	33 379 rub.
DN 20 ΔP 16	34 103 rub.
DN 25 ΔP 16	RUB 35,078
DN 32 ΔP 16	40 347 rub.
DN 40 ΔP 16	41 779 rub.
DN 50 ΔP 16	43,421 rubles
DN 65 ΔP 16	54 394 rub.
DN 80 ΔP 16	58 731 rub.
DN 100 ΔP 12	67 969 rub.
DN 150 ΔP 8	162 699 rub.
DN 125 ΔP 12	110 192 rub.
DN 200 ΔP 8	208 561 rub.

KR112

Wednesday: air, water, steam, gas, etc.
Medium pressure: 16 bar
Medium temperature: -15 ... + 300 ° С
Materials:
Type of drive: Electric Regada (Slovakia)

DN 15	50 070 rub.
DN 20	51 365 rub.
DN 25	52 363 rub.
DN 32	60 368 rub.
DN 40	86 123 rub.
DN 50	64 143 rub.
DN 65	81 523 rub.
DN 80	87 318 rub.
DN 100	104 125 rub.
DN 125	163,415 rubles
DN 150	241 629 rub.
DN 200	312 633 rub.
DN 250	458 542 rub.
DN 300	562 308 rub.

Wednesday: air, water, steam, gas, etc.
Medium pressure: 16 bar
Medium temperature: -15 ... + 300 ° С
Materials: case - cast iron, seal in the shutter - "metal for metal"
Type of drive: Electric Regada (Slovakia)

Wednesday: air, water, steam, etc.
Medium pressure: 16 bar
Medium temperature: -15 ... + 300 ° С
Materials:
Type of drive: Electric Regada (Slovakia)

KR119

Wednesday:
Medium pressure: 16, 25, 40 bar
Medium temperature: -60 ... + 560 ° С
Materials:
Type of drive: Electric Regada (Slovakia)

DN 15	75 761 rub.
DN 20	78 013 rub.
DN 25	80 306 rub.
DN 32	90 584 rub.
DN 40	95 794 rub.
DN 50	105 310 rub.
DN 65	124 606 rub.
DN 80	143 197 rub.
DN 100	173,151 rub.
DN 125	272 246 rub.
DN 150	403 863 rub.
DN 200	504 106 rub.
DN 250	682,230 rub.
DN 300	852 524 rub.

Wednesday: air, water, steam, oil products, etc.
Medium pressure: 16, 25, 40 bar
Medium temperature: -60 ... + 560 ° С
Materials: the case - stainless steel, consolidation in a lock - "metal on metal"
Type of drive: Electric Regada (Slovakia)

KR113

Wednesday: air, water, steam, gas, etc.
Medium pressure: 16, 25, 40 bar
Medium temperature: -40 ... + 425 ° С
Materials:
Type of drive: Electric Regada (Slovakia)

DN 15	56 163 rub.
DN 20	56 558 rub.
DN 25	58 236 rub.
DN 32	66 354 rub.
DN 40	67 148 rub.
DN 50	69 254 rub.
DN 65	88 646 rub.
DN 80	95 699 rub.
DN 100	109 567 rub.
DN 125	188 749 rub.
DN 150	278 835 rub.
DN 200	343,262 rub.
DN 250	537 716 rub.
DN 300	658 603 rub.

Wednesday: air, water, steam, gas, etc.
Medium pressure: 16, 25, 40 bar
Medium temperature: -40 ... + 425 ° С
Materials: case - steel 25L, seal in the bolt - "metal for metal"
Type of drive: Electric Regada (Slovakia)

KR111

DN 15	42 990 rub.
DN 20	51 365 rub.
DN 25	52 363 rub.
DN 32	60 368 rub.
DN 40	61 692 rub.
DN 50	64 143 rub.
DN 65	81 523 rub.
DN 80	87 318 rub.
DN 100	104 125 rub.
DN 125	163,415 rubles
DN 150	241 629 rub.
DN 200	312 633 rub.
DN 250	458 542 rub.
DN 300	562 308 rub.

KR127

Wednesday: air, water, steam, etc.
Medium pressure: 16 bar
Medium temperature: -15 ... + 300 ° С
Materials: case - cast iron СЧ20, seal in the shutter - "metal for metal"
Type of drive: Electric Regada (Slovakia)

DN 15	upon request
DN 20	upon request
DN 25	upon request
DN 32	upon request
DN 40	upon request
DN 50	upon request
DN 65	upon request
DN 80	upon request
DN 100	upon request
DN 125	upon request
DN 150	upon request
DN 200	upon request
DN 250	upon request
DN 300	upon request

KR116

DN 15	upon request
DN 20	upon request
DN 25	upon request
DN 32	upon request
DN 40	upon request
DN 50	upon request
DN 65	upon request
DN 80	upon request
DN 100	upon request
DN 125	upon request
DN 150	upon request
DN 200	upon request
DN 250	upon request
DN 300	upon request

KR122

DN 15	62 858 rub.
DN 20	64 727 rub.
DN 25	66 629 rub.
DN 32	80 620 rub.
DN 40	83 247 rub.
DN 50	91 785 rub.
DN 65	119 408 rub.
DN 80	137,214 rub.
DN 100	165 928 rub.
DN 125	261,290 rub.
DN 150	387 018 rub.
DN 200	459 953 rub.
DN 250	622 775 rub.
DN 300	778 041 rub.

BL551

Wednesday: water, glycols (up to 50%), etc.
Medium pressure: 16 bar
Medium temperature: +5 ... + 120 ° С
Materials: body - brass, stem seal - EPDM
Type of drive: Belimo electric drive (Switzerland)

DN 15, H412B with LV230A-TPC	upon request
DN 20, H420B with LV230A-TPC	upon request
DN 25, H425B with LV230A-TPC	upon request
DN 32, H432B with LV230A-TPC	upon request
DN 40, H440B with NV230A-TPC	upon request
DN 50, H450B with NV230A-TPC	upon request

With this article, we begin a series of materials devoted to individual elements of automation systems. In the first article we will get acquainted with the purpose, structure and principle of operation of solenoid valves with electric actuators.

Valves are devices that regulate: pressure, temperature, direction of flow of liquid or gas in a pipeline.

All valves can be divided into unregulated and adjustable, in which the geometric dimensions of the working windows or their number depend not only on the parameters of the fluid flow, but also on external influences.Valves can be distinguished: overflow, pressure reducing, safety, return and switching.

An adjustable valve is a valve that changes the flow of liquid (gas) that enters or is diverted from an object of regulation.

An adjustable valve is a variable hydraulic resistance with a variable flow area from zero (when the plunger fits into the seat) to a maximum (with the valve fully open) and with a variable coefficient of local resistance, because the flow rate varies in magnitude and direction.Most often, an adjustable valve is articulated by actuators and usually constitutes a common unit with them.

Motorized valves are one of the most popular types of pipeline equipment. With their help, you can block and adjust the characteristics of the flow of liquid or gas, eliminate the emergency. They are widely used in utilities, gas and oil industries, and in agriculture.

The advantages of these devices include: high speed of opening the stream or its overlap, reliability and durability in operation. The electric drive provides the ability to work with valves remotely from the control panel.

The mechanisms comply with high standards for precise regulation of the temperature of hot water for supplying it to the heating system. The material of the valve, which works with an electric actuator, can withstand large pressure drops. Electric drives are made with a safety function.

Pressure regulator - a control valve, with an electric actuator monitors the pressure of the working medium in the pipeline section or in the technological system. Such a device consists of functionally dependent parts: a distributing effect on the regulatory part and a control valve that acts on the mass of gas or liquid.

The executive mechanism of such a system is. The main purpose of regulatory mechanisms is to manage manufacturing processes. The device allows it to continuously monitor the characteristics of the working medium (pressure, flow rate of water or gas, temperature ...), and also prevents emergency situations, instantly turning on locking equipment, protects the lines from water hammer, and prevents the return passage of working media.

When mounting the adjusting mechanism, it is necessary to trace the direction of the mass of water or gas in the direction of the arrows that are shown on the housing.

The pipelines on which the control valve is installed must be evenly laid and securely fixed, and also protected from vibration. The device can be mounted both vertically and horizontally, but the drive must always be located on top. Be sure to leave space for dismantling or mounting the drive.

Three way mechanism

A three-way valve with an electric actuator does not carry out a change in the direction of movement of the mass of liquid, its pressure is constant, only the proportions of the passage of cold and hot water change. The design of the device is such that both cold and hot liquids are suitable for it, and a mixture of the desired temperature is obtained at the outlet.

A fairly simple design of the part is a housing in which there are two inlets and one outlet. The regulating element is either a rod of a certain design, which can move in the vertical direction, or a ball rotating around a fixed axis. The working element does not completely block the mechanism, but only directs the flow of gas or water so that they mix.

The drive system, receiving commands from the sensors, allows you to change the temperature of the fluid in automatic mode. The most accurate adjustment was received by a three-way part with an electric drive, therefore it is most widely used.

The electric drive that comes with the device can be either a servo drive. A solenoid is a core coil through which an electric current flows, i.e. electromagnet. A servo drive is a device in which an input electrical signal controls mechanical movement with a compact electric motor.

The materials from which this equipment is made include cast iron, steel and brass. Steel and cast-iron devices are installed in the main with a large passage of water or gas. Small parts are made from brass.

Three-way devices are in demand products, since there are simply no analogues that could replace them. Only this equipment can ensure that the temperature of the working medium is maintained at the proper level. Well-developed technology for the execution of three-way mechanisms. The nomenclature of this product is such that the product will satisfy any request.

Sophisticated technical device and the price is considerable, but it provides reliability and durability during operation.

Locking mechanism

Electric shut-off valve - This is a locking valve made in the form of a valve. The element that blocks the flow of water or gas moves parallel to the axis of this stream. Such devices are used to completely block the flow section. Such a locking element is a spool, which can only be in the “open” or “closed” positions during operation.

They also make shut-off - regulating equipment, which has the additional function of regulating the flow rate of the passing fluid.

Until 1982, valves of this type were called valves, but the Guests abolished this name.

These devices are widely used as locking valves because of reliable sealing with a spool and structural simplicity of execution. They are used for gaseous and liquid media with a wide range of operating characteristics: temperatures from -200 ° C to +600 ° C; pressure from 0.7 Pa to 250 MPa.

Equipment of this type is installed on highways with a small diameter, otherwise it will take a lot of effort or a complicated design to properly install the shutter in the housing. A new modification of the locking device, which has a worm gear housed in a housing with a cover, an electric drive, input and output flanges, a stationary sealed seat and a movable shutter.

The mechanism of the indicator of the location of the shutter is a housing with a movable sleeve, on which an internal thread is applied. The rotation stop and the scale located outside indicate in which position the shutter is. The shutter location indicator mechanism is mounted on the shaft of the worm.

One revolution of the worm corresponds to a pointer movement of 1 mm. The result was an increase in the accuracy of the measurement of the shutter position. In addition, this valve design has reduced the effort to move the shutter.

If a locking mechanism is used at some site, then multi-turn electric drives are used to control it. The shut-off valve with an electric actuator closes and opens the piping system, while changing the pressure in the system, they change the direction of fluid flow in the pipeline.

Advantages of a shut-off valve with an electric actuator:

the possibility of slow closing or opening of the pipeline, as a result of which the force of the "hydraulic" shock is reduced;
simple design allows you to simplify equipment maintenance;
wide range of operating temperatures and pressures;
small dimensions of devices.

The element has great power and high reliability in operation. The device relates to energy-saving equipment, as it has the ability to switch to two degrees of power, which allows you to save electricity.

Electric control valve It is one of the main elements of pipeline valves in the regulation system of a heat point, boiler room or thermal power plant. This type of equipment, by changing the flow area of \u200b\u200bthe control valve, changes the parameters of the working medium (water, steam, gas or other liquids). The main parameters are flow and pressure. The governing body of the control valve is an electric actuator (electric actuator), pneumatic actuator or hydraulic actuator. Thanks to these actuators, continuous (analog) or three-position (discrete) control of the control valve occurs.
Currently, the electric control valve has found the most popularity among others. An electric actuator (EIM) receives a signal from sensors through controllers (or, as they are also called, electronic controllers). The controllers, having processed and compared the sensor signal and the values \u200b\u200bset in advance, supply an analog control signal (0 ... 10V, 4 ... 20 mA) or a three-point signal. The analog control signal depends on the value in this range of indicated values.

Application and purpose of the control valve with electric actuator.

The control valve can be of two types:
Two way valve equipped with an electric drive, which serves in the automation system to control the flow, temperature or pressure of the medium.
3-way control valve with an electric drive, the main function of which is mixing or separation of media flows, which makes it possible to control the system depending on the time of day or ambient temperature (weather-dependent regulation) and increases the energy efficiency of the system.
Also, electrically operated control valves are widely used in forced ventilation systems as a governing body of a heater (water-air heat exchanger) or cooler, regulating the temperature of the air supplied to the room.

Types and types of electric control valve.

The control valve with an electric actuator differs in the type of connection: flanged, threaded, welded (for welding).
Electric welded control valve quite simple to install, but inconvenient to dismantle.
Electric Threaded Valve It is most often used in ventilation and air conditioning systems, as well as in heat engineering, where the flow of the working medium is small. This type of connection is easy to install and a sufficiently large ability to absorb axial forces. The disadvantage of a threaded control valve is the limited diameter of the valve. The execution of the threaded valve, according to SNiP, is limited to a diameter of 50 mm (DN50).
Electric flange control valve It is used most often in heating centers where threaded valves cannot be used due to the large diameter of the valve. Also, flanged valves have a convenient type of connection, which allows you to replace the valve (for example, for cleaning) without dismantling the system as a whole.

In addition to the type of connection, the electrically actuated control valve can be classified according to the material of the valve body (and, accordingly, the nominal pressure Py and the operating temperature Tr). LDM two-way and three-way control valves are made of bronze, gray cast iron, ductile iron, cast alloy steel and stainless steel.

In case you need to pick up electric control valve, you can download Ventily from our website.
Also, you can fill out and send it to us via e-mail or fax.
If you need to know the cost, then you can find it in the price list for the equipment. The price of a control valve with an electric actuator is indicated on a set of a valve with an actuator. All prices are in Euros inclusive of VAT. Euro rate \u003d CBRF rate on the invoice date. The discount is calculated depending on the volume and is specified by managers.
In addition, our specialists will be happy to answer your questions by phone specified in the section.

The complexity of engineering systems is increasing every year, the requirements for their energy efficiency, reliability, safety are increasing, which dictates the use of modern pipeline valves, first of all, regulating ones.

In this article we will consider the main types of control valves that play an important role in solving the above problems, and also analyze some of the features of control valves supplied by ADL with PS-Automation electric drives (Germany).

Regulating pipeline valves of direct action, as is known, uses the energy of the same medium to regulate the parameters of the flow of the working medium in a certain section of the technological system or pipeline. Due to which the advantages of this type of fittings are: independence from external energy sources, accuracy of regulation, as well as reliability. However, there is a drawback, which often greatly complicates and limits the use of direct-acting regulators - this is the lack of flexibility. In other words, each controller is designed to be used in a very narrow range of system parameters. For example, if we use a direct-acting pressure regulator to control the outlet pressure of 5 bar, then, to change the setting, for example, to 10 bar (all other parameters are unchanged), we most likely need a completely different valve.

The following types of direct-acting regulators are found:

pressure reducing valves (pressure regulators “after oneself”) designed to maintain a constant outlet pressure regardless of changes in inlet pressure or flow rate;
bypass valves (pressure regulators "to oneself"), ensuring the maintenance of constant pressure in front of the valve due to the transfer of part of the medium;
differential pressure regulators, which serve to maintain a constant differential pressure between two preset points of the system;
special regulators (tracking pressure regulators, shock absorbers, etc.)

Indirect control valves, on the contrary, use external energy, such as electricity (electric drive), compressed gas energy (pneumatic drive), etc. The control signal for such regulators is also external. The signal comes from a logic device that directly implements control algorithms in the system. Thus, indirect control valves provide often needed flexibility. For example, to regulate different pressure values \u200b\u200bor even to regulate other parameters, in some cases the same control valve with actuator can be used. Of course, systems where indirect controllers are used are much more complicated than systems using direct-action controllers, which often negatively affects the speed of regulation and reliability indicators. However, modern electric drives can eliminate these shortcomings. Such electric drives include, in particular, drives manufactured by PS-Automation GmbH (Germany), exclusively supplied to the Russian market by ADL.

So, linear actuators are used to control the control valves. Let's take a closer look at the features of linear electric drives of the PSL and PSL-AMS series manufactured by PS-Automation (Germany).

PSL series electric drives are designed in a modular fashion, which allows you to get the most functionality at the lowest possible cost. PSL actuators meet all the requirements for control valves: precise positioning, strength, reliability and durability, even at high loads. The basis is a standard drive with three-position control and the necessary set of protection functions. In this case, the characteristics of the drive can vary greatly depending on the installation of additional options. For example, installing a positioner and a potentiometer on the drive allows the drive to be controlled by an analog signal (for example, 4 ... 20 mA, 2-10 V, etc.). In accordance with the tasks of the customer, the specialists of ADL Company modify the electric actuators of control valves, make the necessary settings and testing. An important advantage is that the functionality of the drive can be changed after its delivery and even installation in the system. Most drive options can be purchased separately, including:

positioner with active output;
potentiometer;
position signal converter;
additional limit switches;
heating resistor, etc.

To increase the reliability of the system, PSL electric drives are equipped with the following protection functions:

automatic shutdown of the drive when reaching the extreme position;
automatic shutdown of the drive when maximum linear force is reached;
automatic shutdown of the drive at risk of overheating of the motor windings;
the ability to determine positioning when a power or control network breaks; Moreover, this position (normally open, normally closed, current) can be changed directly on the pipeline using a switch.
manual understudy.

The PSL-AMS Series intelligent linear actuators have advanced microprocessor-based electronic circuits with a memory card, which provides reliable and accurate control, as well as easy commissioning and easy setup.

The electric current and voltage control functions allow you to customize the operation of the drive to specific system conditions. So, through the special communication software PSCS (supplied as standard), you can set various parameters of the drive, corrective data, carry out diagnostics and much more.

PSL-AMS series intelligent electric drives also have a number of additional options, such as: a local control function on the housing that allows you to configure the drive's operation at the installation site, as well as block access to its control, an integrated PID process controller that monitors and controls the set parameters works with the ability to program any non-standard drive behavior, intelligent control protocols (HART, Ethernet, Bluetooth, etc.), etc.

All of the aforementioned series of linear electric drives have a protection class IP65 or IP67 and can be made in a metal case.

PS-Automation electric drives are successfully used by ADL to complete control valves of its own and European production. The nomenclature of control valves is represented by two-way single-seat (both balanced and unbalanced designs) and three-way valves in the range of diameters from DN 15 to 300 mm, pressures from PN 16 to 40 bar, for environments with temperatures up to 300 ° C.

It is worth noting that the installation of the electric actuator on the control valve, its adjustment and testing are carried out at the production complex of our company, which guarantees operability, minimum delivery times, and also allows you to make a special version of the control valve to the requirements of a particular system.

Below we present only the most basic characteristics of the control valves supplied by our company.

Valve capacity: 1.7 ... 1030 m3 / h;
Case material: brass, cast iron, carbon steel, stainless steel;
Drive supply voltage: 10, 24, 110, 220, 380V;
Control signal: three-position, analog, HART, etc .;
The linear force of the electric drive: 1.000 ... 25.000 N;
Ambient temperature: -40 .. + 80 ° C;

Control valves of both direct and indirect action from ADL Company have many years of experience in operation at housing and communal services, and are successfully used by leading enterprises in various industries. Among the facilities where our control valves are installed, one can distinguish: the complex of high-rise buildings "City of Capitals" of the business center "Moscow City", the Cathedral of Christ the Savior, Reutov heating system and many others.

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