Water supply of housing belongs to complex hydraulic structures, the organization of which should be carried out according to all the rules.
Accidents in the system can occur both due to errors when installing pipes or plumbing devices and due to violation of the rules of operation. The latter also applies to such a common phenomenon as pressure drops in the pipeline, to combat special devices - pressure regulators.
The devices are able to perform a number simultaneously. important functions. The first of them is to prevent pressure. Almost all household plumbing devices are able to operate in up to 3 atm. Excess this parameter is fraught with overloads for the water supply system at home. As a result, the life of the functional nodes on washing and dishwashersThe reliability of connecting adapters, gaskets decreases.
Pressure regulators prevent hydraulic shocks. We are talking about sudden water pressure drops arising due to problems of pumping equipment or improper use of valves. The hydroudars can lead to very poor consequences, including gusts of the pipeline and breakage of boiler aggregates. Sometimes the pressure jumps are so big that the boiler explodes.
Another useful function is the economical water consumption. Adjusting water pressure, you can significantly reduce its consumption. For example, if you reduce the head from 6 to 3 atm, the savings can reach 20-25% (during the opening of the crane, a smaller stream will be produced).
Hydraulus helps reduce noise when using mixers and cranes. The reason for the annimple of the reinforcement is in elevated pressure, which is why the water pressure after opening the valve acquires boundary power. Thanks to the water pressure regulator becomes stable and decreases to optimal values.
In the event of a fitting of the pipeline, water losses will decrease, since the device reacts to a drop in pressure with a decrease in water supply. Basically regulators (gearboxes) are equipped with water supply systems of private houses, where they are switched to the circulation pump in a pair with a hydroaccumulator.
Water pressure regulators are presented in the sanitary equipment market with several varieties. At the place of installation, devices are divided into two groups:
Regardless of the principle of operation, any pressure relay consists of the following constructive elements:
In addition to the standard set of parts, some models are additionally completed with a manometer, a coarse filter, air valve and ball valve.
By bandwidth, the regulators are divided into household (0.5-3 m3), commercial (3-15 m3) and industrial (over 15 m3).
According to the principle of RVD, there are piston, membrane, flow, automatic and electronic.
The most simple water pressure valves design (they are also called mechanical). Pressure adjustment is carried out by a compact spring-loaded piston due to a decrease in or increasing the passage channel. To set up the outgoing water pressure, a special valve is provided in the instrument: rotating it, you can relax or compress the spring.
The weaknesses of piston regulators include their sensitivity to the presence of garbage in water: the piston clogging is the main cause of the breakdown. To prevent such phenomena, a special filter is usually included in the gearbox. Another disadvantage is a large number of movable mechanical nodes, which affects the degree of reliability of the gearbox. The piston device is able to adjust the pressure in 1-5 atm mode.
Very reliable and unpretentious devices, allowing the ability to adjust the pressure of water wide limits (0.5-3 m3 / hour). For household conditions, this is a very decent indicator.
The core fixture is spring-loaded membrane: to avoid clogging for its installation, an autonomous hermetic camera is used. The return from the compressive or samplen spring is transmitted to a small valve, which is responsible for the value of the output channel section. The cost of membrane limiters is high enough. Due to the complexity of the replacement, this procedure is usually performed by experienced plumbers.
The peculiarity of this model of water pressure regulators is that there are no mobile elements in it. This has a beneficial effect on the reliability and duration of the instrument service.
The pressure decreases due to the intricate channels of narrow channels. Water during the passage of numerous turns is divided into separate sleeves, at the end, merging into one, but not so fast. IN household use Flowing gearboxes can be found in irrigation systems. The disadvantage of the device is the need for an additional output regulator.
A node of small sizes consisting of a membrane and a pair of springs. Special nuts are used to change the compression force. When the inlet water has a weak pressure, it leads to a weakening of the membrane. Pressure enhancement in the pipe provokes an increase in compression.
Under the influence of the spring, the contacts on the automatic pressure gearbox are open, then they are closed again. This, in turn, includes and turns off circulation pump Forced water supply system. The design of the automatic RVD mainly duplicates membrane devices, differing only for the presence of two correction screws to set the operating pressure range.
The special mechanism monitors water pressure in the pipe, for which the motion sensor is used. After processing the data obtained, the decision is made on the inclusion pumping station. The electronic regulator blocks the power on, if the pipeline is not filled with water. The structure includes the main body, sensors, electronic circuit board, switching sleeve (thanks to it the feed wire) and threaded nozzles for connecting to the system.
The design of the stabilizer has a convenient display to display the characteristics of the water flow. Mechanical regulators are sometimes not able to effectively protect the system from dry progress, which is why it is necessary to constantly monitor it for the presence of water. Unlike them, electronic models with the controller are able to constantly monitor filling with water. Gearboxes of this type work almost silently, reliably protecting all nodes from hydraulic shocks.
As the norms for water supply and sewage systemsThe water pressure regulator must be mounted at the entrance between the shut-off valve and the counter. In this case, reliable protection of all hydraulic devices is guaranteed, including accounting and filtering devices.
Most often, the water pressure reducer in the apartments is needed for the safety net - reduce theft in the pipe.
Note! The optimal point of installation is on the riser, immediately at the meter and the filtering unit.
The first thing is to build a device with a mandatory installation on the side openings of the plugs. In the future, the manometers are mounted on these nozzles. It is best to place a water pipe horizontal: the RVD in such a scheme before and after itself has a locking valve. The gearbox when installing in apartments should be positioned strictly vertically (mounting horizontally or with a slope is strictly prohibited).
Installation of the apartment relay is largely reminded by a similar procedure with a hot and cold water accounting device or a coarse filter. To refer to the direction of movement of the fluid, the body of the product is marked with a pointer (the landing place for the pressure gauge is located at the top of the case). Getting Started with installation work, overlap the water supply, warning about this neighbors in advance (if the installation is carried out on the riser). Work on polypropylene tubes will require the use of special adapters (as a rule, they are complete to the product).
In some cases, it will be useful to include inlet shut-off valves equipped with a mesh filter in the strapping of the regulator. A prerequisite is the presence of a ball valve on the water pressure regulator. All connecting joints in order to avoid leaks should be well sealed for which the pass or fum-tape is used. By installing the seal, the connections are tightened with a gas key. It is important not to overdo it, given the fact that in most cases brass fastening nuts with high strength are used. The installation works are quite complex, so if there is no proper experience, professional plumbers are invited to fulfill them.
A water pressure regulator in a private house carries the same functional load as in the apartment. The difference is only available in the pump system supporting the necessary pressure. RVD in combination with pumping equipment is installed so that the pressure gauge look up. The installation point of the device is a place where the home system is connected to a trunk tube or feed from the well (after a water meter). For ease of installation, some manufacturers deliver regulators in a set with a pump.
When organizing the strapping of the regulator, it is important not to forget about the coarse filter (if it is not present in the scheme initially). Filter mounting point - input to the house tube. On both sides (as in the apartments) RVD is equipped with shut-off reinforcement. To stabilize the stream strength, after the dressing of the device, the installation of a straight line (the length of this section is 5 working diameters). All work must be carried out by a person with the corresponding skills.
Special regulations for the use of household water supply systems, water pressure at the outlet recommended in the range of 2-3.5 kg / cm2. It is possible to obtain this mode only by adjusting the water pressure reducer. The speed of action of various RVD models is different. The system flow provokes a decrease in the pressure of the pressure of about 1.5 atm (the exact indicator depends on the specifics of the contour). After a few seconds, there is an increase in pressure to the indicator below average. The ideal output parameter must yield to the input at least 1.5 kg / cm2, otherwise it will lead to a noticeable braking of the velocity of the fluid movement along the pipes.
These norms are important to take into account, configuring water pressure gearboxes. Determine that the gearbox does not work correctly, steam gauges or the control fence of the fluid before the pressure regulator will help. You can configure the RVD only if the system is in the working tone and it has the desired fluid pressure. By creating such conditions, in the course of rotation of the adjusting screws, you can easily define all the changes in the indicators (this will be displayed on the pressure gauge). Without a measuring device, such manipulations are not recommended, as this can lead to a violation of factory settings.
In the course of the operation of the RVD, it is necessary to control the pressure in the system. If the output parameters of the device are not adjusted, most likely caused the membrane. Sometimes the water begins to leak on the housing. Any signs of breakage serve as a signal to dismantling and disassembling the device. Most often, the membrane is injured by a rusty spring or rod. These nodes, along with seals, can be found in the repair kit that can be purchased in a plumbing store.
One of the significant parts of any industrial systems There are liquid level controls. They are responsible for supplying a liquid refrigerant to the container in which it is supported at the proper level. The fluid level control systems are high (HP LLRS) and low (LP LLRS) pressures.
The main differences of the high-pressure fluid control system:
For confidence that the system will be charged by the necessary number of refrigerant, the volume of refueling should be paid due attention. If a larger amount of refrigerant is reflected in the system, the probability of flooding of the evaporator () is the probability of flooding (), and it will fall into the compressor, as a result of which a hydraulic blow may occur. With an insufficient number of liquid refrigerant in the system, the evaporator will suffer. Nodely correctly calculate the volume of the low pressure vessels of the evaporator heat exchanger so that they are sufficiently filled with the necessary amount of refrigerant, in order to exclude the risk of hydraulic impact.
Given these features, we note that the HP LLRS system is best used in installations with a small refueling (small freezers, water coolers, etc.). For example, in water coolers, often do not use receivers and even if necessary oil supply to the oil cooler or mounting of the pilot, they are set to small.
IN big sets To regulate the level of high pressure fluid instead of pilot valves for the main PMFH valve, float SV 1 and SV are used 3. As soon as the level of fluid in the receiver exceeds the norm, the Float Gate SV 1 sends a signal to opening in the main PMFH valve.
When using a condenser in the form plate heat exchanger, The fluid level can be adjusted by the HFI float valve (1). In some situations, it is necessary to compound the exhaust pipe towards high pressure. Thanks to this simple reception, you can achieve the desired performance, even if the HFI valve is located at a distance from the condenser.
During the planning scheme of the fluid level control system, the signal is directed or from the AKS 38 relay (two-position fluid level relay) or from the AKS 41 sensor (liquid level sensor). The signal receives an EX 347 electronic controller, which regulates the injection valve.
To regulate the supply of fluid can be used:
In low pressure vessels (shell-cutting evaporator) the fluid level should be at the same level. This factor indicates a stable operation of the system. If the level in the liquid separator is too high, it can cause a hydraulic impact in the compressor. With a low level of fluid, there is a probability of cavitation in the pumps of the refrigerant circulation system.
Considering these factors, we note that low-pressure fluid level control systems are mainly used in decentralized cooling systems, since several evaporators have and high level Refueling refrigerant (refrigeration warehouses). Installations of this kind with LP LLRS system work stably, even if the amount of refrigerant required for refueling is difficult to determine.
In turn, the High Pressure fluid level control system (HP LLRS) is used in compact installation (water coolers). Compared to LP LLRS systems, they are less, and also differ in greater reliability and safety.
- - Themes Oil and Gas Industry EN Fluid Flow Controller ...
flow regulator (liquid, gas) - - Topics Oil and gas industry EN FLOW REGULATOR ... Technical translator directory
Flow regulator - The adjustable hydraulic apparatus is intended to maintain a given flow regardless of the pressure drop in the supply and retractable flows of the working fluid. Hydraulic choke is an adjustable hydraulic apparatus, designed for ... ... Wikipedia
controller supply and fluid flow (automatic) - - Topics Oil and gas industry EN VOLUME AND FLOW CONTROLLER ... Technical translator directory
flow regulator or fluid or flow rate - - Topics Oil and gas industry EN RATE OF FLOW CONTROLLER ... Technical translator directory
Flow regulator - NDP. The throttle with a regulator of a flow control hydraulic device designed to maintain a given flow rate regardless of the pressure difference value in the supply and retractable working fluid flow. (See Fig.). Note: By ... ... Vocabulary Vocabulary
Regulator - 5.2.1. Controller 1. A device forms, reinforcing and converting a signal of a deviation of an adjustable value from a given value that formulates the law of regulation and providing the issuance of the regulatory value to control the executive ... ... Dictionary directory terms of regulatory and technical documentation
Controller automatic ship - Origin: from Lat. REGULO is put in order, I set up the mouth of automatics by ship, by means of the machine, regulation is carried out. Together with the object machine, UPR. (regulation) R. forms a system of automatic, regulation. FROM… … Sea Encyclopedic Directory
RRG. - fluid flow regulator ... Dictionary of abbreviations of the Russian language
Fertilizer - serves for superficial or intravenous. Maintain Maine, and Organic. fertilizers (solid and liquid) at the dopes, pre-sowed soil fertilizer and under feeding. For superficial solid mineral fertilizer (Granulirov., Crystalleg., ... ... Agricultural encyclopedic dictionary
fertilizer - Machine for making mineral fertilizers and lime 1 RMG 4B: A - technology system; b - diagram of the tube; 1 - body; 2 - conveyor; 3 - hydraulic cylinder; 4 - dosing device; 5 and 12 - scattering ... ... Agriculture. Big Encyclopedic Dictionary
This section presents the supplied automatic fluid flow regulators (water, petroleum products, etc.).
URD-3. - Controller flow and pressure universal. Execution "But" - normally open (regulation "after yourself"), Du URR-25,32,50,65,80mm (8-80 m3 / h); up to 150s, 1,6 mp.
URD-2 - Controller flow and pressure Universal Du-25-150mm (analogue of URD-3 and outdated URR-M).
RRNA - Direct Action Controller (Pressure Pressure Regulator).
RR-25 ... 100 - water flow regulator (Du - 25mm, 40mm, 50mm, 80mm, 100mm).
RRMK-5. - fluid flow controller (oil) within a given pressure drop.
RRG. - High pressure fluid flow regulators.
Pp-no - Direct Action Controller (Pressure Differential). RR works without an extraneous energy source, intended for automatic maintenance specified pressure or pressure drop of liquid, gas and vapor media. Du PR-n-25, -32, -40-50, -80, -100mm, pressure up to 1,6 mm (water, gas, steam, air). The connecting dimensions of the flanges according to GOST 12815-80. The principle of operation of the RR regulator is based on equilibrate the strength of the elastic deformation of the spring setting of the force generated by the adjustable medium on the membrane node.
Other types and brands of fluid flow regulators can also be supplied.
In addition to the above flow regulators (PP) of the fluid, we recommend to familiarize yourself with the following types of PP:
a) pp thermal energy (for example, RTE-1, etc.).
b) air pp (for example, RRV-1, etc.).
c) RP gas (eg RWG-1, etc.).
d) technological regulators (secondary regulating devices that perceive the output unified signals from pressure drop sensors (type diffum meters-flow meters Sapphire-22m-dd, probe-10dd, Air-DD, DMER-MI, DM 3583Mand others) suitable with the root removal unit for flow measurement The pressure difference method on standard tousing devices (diaphragms - DKS, DBS).
For details, see the section Pressure, Subsections: Diffmameneters and.
Fluid flow regulators are designed to automatically maintain a given flow rate, liquid (incl. gas and steam-containing) media non-aggressive to the materials of the regulator under operating conditions. The controls of the regulators are usually made of gray cast iron, steel casting or corrosion-resistant casting. The connecting dimensions of the flanges are performed according to GOST 12815-80.
Options Execution of flow regulators: "But" - regulation of the pressure "after itself".
The principle of operation is based on equilibrate the strength of the elastic deformation of the spring setting of the force generated by the adjustable medium on the membrane node.
Regulators are used in industrial installations, thermal points, water supply systems and other objects in accordance with their technical characteristics.
The device can be equipped with a filter of the corresponding diameter, responding with steel welded flanges.
The most common models of regulators have:
Diameters of the conditional passage Dn (DB) \u003d 25, 32, 40, 50, 80, 100 mm.
Conditional pressure PN (RU) up to 1,6 mP (16kgs / cm2), but higher values \u200b\u200bare possible.
The temperature of the adjustable medium to 180c.
1. Clearly determine for what purposes you need a fluid flow regulator (water, petroleum products, etc.).
2. Choose which type and modification of the fluid flow regulators are really suitable, and which functionality really necessary (because of the different kind of "excesses" may be unreasonably expensive).
3. Check whether the technical characteristics and parameters are sufficient to properly execute the converter order (see order form).
4. What optional equipment It is still necessary (installation and assembly fittings and elements (flanges, adapters, etc.), auxiliary blocks, nodes, devices, water filters, streaming stabilizers, etc.).
5. What amount for equipment and additional costs (including for packaging and delivery) are ready to pay.
6. Are you competent to make decisions on making changes to the project, and can you be interested in the proposals of modern analogues with a better price-quality ratio (according to our engineers).
7. What is the form of payment and delivery time for you are acceptable (note that a partial prepayment or urgent execution of the order ("out of the queue") can sometimes lead to a minor increase in the cost of products).
8. What way to you more convenient to get products (pickup, delivery, shipment through a transport campaign or other).
To view the entire value of the nomenclature, technical descriptions and ordering, we offer to follow the link to the site of the regional representative office of GC "Heat" -
Copyright © 2008. Pig - fluid flow regulators (water, petroleum products).
During reconstruction or device new system Water supply is usually planned to place all water consumption devices and the necessary structural elements. Most of these elements of the water supply system have sufficiently strict requirements on operating conditions, the violation of which leads to a decrease in service life. Such requirements refers to the maximum permissible pressure in pipelines. With a sharp rise in pressure in the system or hydraulic man. The water consumption instruments may fail. To eliminate the occurrence of such problems, it is necessary to establish a water pressure regulator (RDD) in the water supply system. About this device and will be discussed in today's review.
Read in the article:
The main function that water pressure limiters is performed is the stabilization of the pressure in the system and maintain it at a given level, the prevention of the highway and the consumption devices from high loads and hydrowards. The RDV is a safety mechanism in a metal housing with an inlet and output threaded compound. The device can be supplied with a pressure gauge and an adjusting screw to adjust water pressure.
In private home ownership to maintain a constant pressure in the water supply system, two mandatory devices are required - and a hydroaccumulator. These elements through the highway are joined to the pump, and the water pressure relay in the water supply system is located between and the pump.
Devices are constructively divided into two types:
The controller of the first type is able to automatically maintain the necessary water pressure in the highway due to the change in the valve cross section, which holds open to the establishment of a given pressure in the water supply system. This type of gearbox is mainly installed on pump nodes, in heating systems, etc.
To stabilize the water pressure in domestic pipelines, an aftermath controller is used. The device stabilizes the pressure in the water supply system as well as the RDV of the first type, but works completely differently.
With the principle of working relay to stabilize water pressure, you can see the video:
The device for stabilization is characterized by several features:
The household regulator has a capacity of not more than 3 m 3 / h. Industrial water pipelines require devices with higher performance.
Before considering how the water pressure reducer works, the scope of application of this device should be known. RDV is equipped with:
Despite the fact that the principles of the pressure drop controller may differ, depending on the type of device, almost all of the RDV have the same design:
The principle of operation of the water pressure reducer is similar to the functioning of the valve crane: the piston with a rod in its landing place creates a given lumen, thereby creating a fluid pressure of the necessary force. With a fixed piston at the outlet, the pressure changes in proportion to the stream at the inlet, and in the RDV the position of the valve depends on the ratio of the current head and the rigidity of the spring. The adjustment setting is performed due to the "pilot circuit": with an increase in the pressure force of the working medium, the water flow on the membrane, lowering the rod with the piston, thereby reducing the flow cross section.
In addition to the standard adjustment mechanism, additional devices can be installed in some modern RDV models:
The modern market offers the most diverse models of water and industrial water pressure regulators. Reductors lowering water pressure are divided into two types - piston and membrane.
Mechanical or piston water pressure gearboxes are the most common type of regulators. Popularity is caused by the lowest cost among such devices. Adjusting the pressure in the water supply system is carried out using a spring-loaded piston that changes the passage of the pipe. Water pressure regulators have a range of water pressure setting range - 1-5 atm.
The main disadvantage that the mechanical pressure regulator has the presence of moving parts that are subject to wear, leading to the conclusion of equipment. In addition, the piston reducer for water supply is very sensitive to various mechanical impurities in water, which are present in household and industrial highways.
Opinion expert
Ask a specialist"It is for this reason that piston gearboxes are supplied with a coarse filter. The force of pressure at the entrance of the piston regulator of water pressure - 25 bar. "
I solve what better to buy pressure gearboxes - piston or membrane need to figure out that the second type devices are presented first. Regulators of this type perform their function by means of a membrane with a spring concluded in a hermetic chamber. With an increase in the pressure of the pressure in the water supply system, the spring compresses and the effect on the valve, which reduces the aqueous stream in the pipes, and with a decrease in the input, everything happens on the contrary.
The membrane water pressure regulator is a fairly reliable device, unpretentious in operation with a large pressure adjustment range in water supply lines. Also, these devices are distinguished by high cost. However, membrane gearboxes have such disadvantages as: a large number of moving elements and the complexity of the replacement procedure.
There are also regulators and flow type, distinctive feature which is the absence of moving elements, which in turn positively affects the reliability and durability of gearboxes. Alignment of the pressure of the pressure is due to the loss of water flow rates due to the passage of the inner maze of the device. In everyday life, such regulators are used in almost all types of irrigation systems. The disadvantage of such devices is the need to include at the exit of an additional gearbox.
Also, the RDV shall be divided according to the control on electronic and automatic.
The modern market suggests big choice Installed in water supply systems of automatic water pressure regulators. The adjustment of the water pressure in the pipeline is carried out by means of a special relay. The automatic gearbox is a pretty compact block with a membrane and two springs, the force of compression and straightening of which is adjustable by means of nuts. The membrane reacts by inlet pressure Water, and with weak pressure, the spring weakens, and with the maximum - the compression becomes stronger. The impact rendered to the springs leads to opening (closure) of the contacts of the automatic water pressure regulator for pumps, running or stopping the pump.
The relay helps stabilize pressure in the water supply network and automate pump control.
The special device monitors the current force of the head of the working medium by collecting the sensor data and water movement, after which the pump is activated (if necessary). Thanks to the electronic water pressure controller, the pumping equipment is protected from inclusion in the absence of fluid in a plumbing line.
Electronic water pressure regulators for pumps consist of the main housing, sensors, electronic boards, sleeves for connecting the electrocabyl and carvings for connecting to the water supply. The device is distinguished by silent operation. The electronic water pressure sensor in the water supply system also allows you to protect the equipment of the highway from the likely hydrowards.
Opinion expert
Designer engineer VK (water supply and sewage) LLC "ASP North-West"
Ask a specialist"Electronic devices are installed until the first level of fluid fence. Before starting the gearbox, the pump capacitance is required to be filled with water. "
In the requirements for water supply and sewage, it is indicated that the installation of water pressure regulators must be performed at the entrance immediately after the shut-off reinforcement to the accounting devices. With this location, the gearbox will protect all hydraulic equipment, including a water meter and filtering nodes.
To stabilize the water pressure and eliminating interruptions in domestic water supply systems, the installation of a special gearbox is required. The apartment pressure regulator will also eliminate the possible breakdowns of equipment due to hydrowards. Most apartment owners have already felt the advantages of installing such regulatory devices.
Since in apartments, the water pressure reducer is installed to reduce the pressure in the highway, then it is worth it to the riser behind the accounting instrument and. It is desirable that water pipe It was in a horizontal position, and the regulator itself was located between two stop valves. Reductors on water in apartments should be installed in a strictly vertical position (horizontal or inclined installation is invalid).
Installation of the RDV is practically no different from the installation of a water accounting device or a mesh filter. As a rule, the flow direction of the working medium is indicated by the arrow on the device housing, and the pressure gauge or the socket for its connection is always on top of the gearbox.
Before installing the regulator, it is necessary to overlap water primarily (it is desirable to warn the neighbors if the case affects the trunking pipe). If necessary, the input shut-off valve is established to which the mechanical cleaning filter will be attached. Be sure to install the ball valve on the RDV.
All locations of the connections need to be carefully properized. In order to avoid damage to the regulator, sealing works are desirable to carry out with the use of packle to reduce the likelihood of leakage.
Installing in the apartment reducers on water can be independently (in the presence of experience), but better installation to trust professionals.
On a note! The use of the RDV protects household hydrotechnical devices and a water supply system from hydrowards, breakdowns and emergencies.
RDV devices for a private house perform the same function as for apartment highways, with the only difference that plumbing systems Cottages there is a pump. Water pressure regulators for mounted pressure gauge at the domestic network connection point to the pipeline (preferably behind the water meter). In addition, it is necessary to provide insert into a coarse filter system (if it was not done earlier), which is installed at the entrance to the home highway. In front of the water pressure regulators on the pumps and the locking valves are mounted.
After the device for stabilizing the pressure of the fluid, a direct section of the pipeline should be performed with a length of at least five working diameters. If there are minimal skills in the plumbing, you can install the water pressure regulator at the entrance to the house yourself, but to guarantee quality, the installation of the device is better entrusted with an experienced specialist.
I solve the question for yourself - to install the regulator to the counter or after, it is worth a watching video
The most optimal is the force of pressure at the outlet at the level of 2-3.5 kg / cm 2. It is difficult to achieve this value, so it should be understood how to adjust the water pressure reducer.
Different types and models of gearboxes are different performance. In the case of leakage, the pressure is reduced by 1.5-1.2 atm. Depending on the current installation. A few seconds, the pressure increases, to the level below static. The ideal pressure at the outlet should be at least 1.5 kg / cm 2 less input, otherwise the movement of water in the pipeline will slow down. This must be taken into account by performing the water pressure adjustment in the apartment.
The poor operation of the gearbox can only be seen in the presence of paired pressure gauges or water intake arranged before the pressure regulator. Service of the RDV consists in flushing the built-in filter and washing the mechanism. In the event that this does not give results, it is in a mechanical malfunction or wear of parts. Visually determine the state of the regulator, if you remove the rod.
The adjustment of water pressure regulators must be performed during the operating system and the presence in it. Under these conditions, the parameters change immediately on the pressure gauge after unscrewing or twisting the adjusting screw. Without a manometer, the adjustment should not be done because you can confine the factory settings for the gearbox.
With the regulation of the RDV, you can familiarize yourself, viewing the video:
Maintaining normal pressure in the water supply system is very important for normal operation of hydraulic equipment. Foreign and domestic manufacturers of sanitary equipment offer a large selection of equipment for adjusting the head force of the working medium in water supply systems. Before you buy water pressure regulator, it is worth familiar with the most popular models and manufacturers.
Manufactured by the company Honeywell. Water pressure regulators are designed to protect water supply networks from a sudden increase in the system. At the output of the gearbox, the pressure is always in a given value, which reduces the cost of cold and hot water, and the device itself works quite silently. Honeywell products are popular on European, American and Asian markets and meets all international quality standards.
| Model / Image | Description | Average cost, rub. |
|---|---|---|
Honeywell DDS 76 1/2 " | The DDS 76 model is designed to monitor the filter cleaning process with the activation of the reverse wash actuator (Z11S-A, Z11AS, Z74A-A). The relay compares the values \u200b\u200bbefore and after the filter and during pressure, the automatic turning on the reverse flushing drive occurs. The chassis of the regulator is made of high quality plastic. | 25100 |
Honeywell D06F-1/2 "B | The hot water regulator eliminates the creation overpressure In the system of domestic water supply and maintains a stable pressure on a given value. Adjusting the gearbox is performed by turning the adjusting handle, and the device itself has an installation scale. The model is equipped with a nozzle for installing a pressure gauge and compressed air, nitrogen or water can be used as a working medium. The device, if necessary, is easily transformed into a combined reverse flushing filter. | 3200 |
Honeywell D06F-1/2 "A | This gearbox model in the standard version reduces the pressure of nitrogen, water and other non-aggressive working media flowing in pipelines and is used in household and industrial spheres. Installing the D06F-1 / 2A regulator will provide an ability to protect the pipeline and hardware connected to it. This device allows you to maintain a given output pressure, regardless of the jumps of the input pressure of the working media. | 2950 |
Honeywell D06F-3/4 "B | The D06F-3/4 regulator model is designed to work with household and industrial pipelines from hot water. The gearbox allows you to increase the durability of equipment included in the water supply system due to maintaining a constant force of the underpantus given by the consumer. The gearbox consists of a brass housing, a liner, cylinder, adjusting the springs of the scale, knobs of adjustment and a fine filter, located at the bottom. | 4500 |
Honeywell D06F-3/4 "A | Honeywell D06F-3 / 4A allows you to protect the water supply system from overpressure, which can cause emergency situations and breakdowns of the connected equipment. The regulator is equipped with a manometer pipe, installation scale and adjusting handle. Used as a working environment cold water, nitrogen or compressed air. | 4116 |
Honeywell D04FS-3/4 "A | HONEYWELL D04FS-3/4 "A AR protect the equipment of the water supply system from overpressure, make it possible to avoid breakdowns due to hydrowards and reduce water consumption. The gearbox valve supports the predetermined force of the working medium at the output even when it is jumps at the entrance, which minimizes noise. | 1880 |
| Honeywell D04FS-1/2 "A | Model D04FS-1/2 "A Most Available and Easy in Honeywell Line. Easy to regulator, however, does not interfere with constantly maintaining the setpoint value at the output. The gearbox is possible to install a pressure gauge, and the adjusting spring is not in contact with water. | 2090 |
Honeywell d 06f. | Model honeywell regulator D 06F provides uninterrupted and comprehensive protection of the water supply system from pressure surges. The device is suitable for both industrial and production plants. Adjusting the pressure of the working medium in the pipeline is performed by a special handle with a scale of values. | 4800 |
Honeywell D06F-1/2
Honeywell D04FS-1/2 A
Honeywell offers consumers only high-quality and highly efficient water pressure regulators prices that are completely justified.
| Model / Image | Description | Average cost, rub. |
|---|---|---|
Reducer with filter and pressure gauge Valtec VT.082 1/2 " | VT.082 pressure regulator. 1/2 "was designed to reduce the strength of the flow of cold and hot media at the inputs in domestic water supply networks. The pressure adjustment is performed according to the" after itself "principle. Model VT.082. 1/2" is equipped with a pressure gauge to perform a more accurate adjustment of the output pressure and allows Control water pressure. Setting the water flow strength at the outlet is easily carried out using a screwdriver, and each element of the gearbox can be promptly replaced or repaired. The installation of the regulator is recommended immediately after the input locking reinforcement in front of the water metering device. | 1043 |
Reducer Membrane Valtec VT.085 1/2 " | The membrane regulator allows you to maintain a given level of pressure of liquids, gases and other non-aggressive agents in heating systems, water supply, in technological pipelines and anti-shots. The stability of the given pressure in the system is maintained in independence from sharp jumps in the main line. The absence of rubbing elements in the design makes membrane regulators less dependent on the purity of the working medium in contrast to the piston gearboxes and more reliable. The Valtec VT.085 1/2 Membrane is made of EPDM reinforced. | 2198 |
Piston Reducer Valtec VT.087 1/2 " | The piston regulator Valtec VT.087 1/2 is designed to reduce the pressure of the pressure in highways in which compressed air, water, glycol and gases and gases are used as a working medium with a temperature of up to + 80˚C. At the output of the gearbox does not exceed the pressure The set value is regardless of the pressure drops. The adjustment is performed in the range of 1-4.5 bar. The device body and all of its parts are made of special high-quality brass, stainless steel springs, and seals from EPDM. | 862 |
| Model / Image | Description | Average cost, rub. |
|---|---|---|
Coupling regulator RDV15-2A-M. cold and hot water | The model of the stabilizing gearbox RDV 15-2A-M is used in various systems Water supply to adjust the pressure of the liquid to the neutral value. The regulator 15-2A-M consists of a brass housing with spring-loaded piston, adjustment node and two nozzles. The RDV is used in the water supply systems of utilities and industry to reduce the pressure level to the required value. The stabilization gearbox allows you to significantly increase the reliability of the hydrotechnical devices installed after the pressure regulator from the hydrowards and extend their life. | 1102 |
Coupling regulator RDV-2A-M cold and hot water | The coupling gearbox RDV-2A-M to adjust the pressure of the fluid pressure is intended for use in water supply systems of utilities and industrial facilities. Water is used as a working medium with a maximum temperature to + 70˚C. The body of the stabilizing regulator is made of brass. | 974 |
Coupling regulator RDV-2-M cold and hot water | Reducer for stabilization of pressure of the RDV-2-M is designed for use in industrial and utility water supply systems. Due to the optimization of the flow strength of the working medium, a uniform distribution of the fluid is achieved between the long and near communications from the central highway, as well as between the floors of high-rise buildings. It also increases the reliability of the system and extends the life of the equipment. Water savings when the pressure regulator is turned on, up to 30% reaches a pressure regulator, and the power consumption of pumping installations is reduced. | 700 |
Coupling regulator RDV-2A-F cold and hot water | The household pressure regulator of PDV-2A-F water is available in a solid brass body as a tee combined with a filter, which is made of stainless grid. The device allows you to stabilize and align the pressure in water supply systems with cold and hot liquid. | 700 |
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