Household pressure regulators. Water pressure regulators Types of pressure regulators

Diaphragm and piston water pressure regulators Officine Rigamonti ( OR), Honeywell, ICMA, Pintossi, Atoll

Regulator water pressure - a little protector of plumbing fixtures!

Water pressure regulators are designed to stabilize and reduce pressure in the water supply system. A pressure reducer is an important element in the system, it is a protective device; for example, let’s compare it with a 220-volt network voltage stabilizer; the stabilizer protects electrical appliances from sudden power surges in the network, and the water pressure reducer protects plumbing fixtures and household appliances (washing machines , drinking water purification filters, water heaters, etc.).

Requirements for installing water pressure reducers:
Installing a pressure reducer is quite simple, the main thing is to adhere to the following rules.

The gearbox must be installed after the mechanical water purification filter.
Installation is carried out strictly according to the arrow of the water flow indicator.
As a rule, the gearbox has a hole for installing a pressure gauge with a pressure scale; pressure gauges come with a rear or vertical connection. The pressure gauge is installed with the scale facing up.

Setting the water pressure :

Pressure adjustment is carried out by turning a screw, which presses or weakens the spring, which in turn opens or closes the operating valve.
Pressure reducers usually allow you to set the outlet pressure to 0.5 - 7 bar. Recommended pressure for apartments is 2 - 3 atmospheres.
To reduce water pressure, turn the screw counterclockwise; turning the screw in the opposite direction, the pressure will increase.

Diaphragm and piston water pressure regulators - what are the differences?

Mmembrane regulator pressure thanks to the presence of a compensation chamber and an overlapping membrane, allows you to obtain a stabilized outlet water pressure at the outlet.

The main advantages of such gearboxes are:

Diaphragm reducers water pressure have no rubbing parts, for this reason they are not so demanding on water quality and the reliability of such gearboxes is significantly higher than that of piston gearboxes with spring blocks.
As a rule, membrane regulators have an extended adjustment range - from 0.5 to 7 bar.
Better smooth out pressure drops water at the inlet.
Work with a large pressure range.
Operate with lower water flow. But the price of such gearboxes is much higher than that of piston gearboxes.

Piston water pressure reducer in its design it contains a piston, which is pressed by a spring. Depending on the pressure of the water at the outlet, the piston presses the passage that releases the water to the outlet.

Features of piston water pressure reducers:

The presence of moving parts inside the housing.
Higher requirements for inlet water filtration.
The maximum water flow speed is limited to 2 m/s (to prevent increased wear of the piston mechanism).
With high water flow, a significant decrease in pressure occurs.

NEW New addition to our range of water pressure reducers - diaphragm reducers from the manufacturer OFFICINE RIGAMONTI(Italy)

Distinctive features of membrane regulators OR series 0028:

Company OFFICINE RIGAMONTI, abbreviated (OR) previously produced membrane water pressure reducers for companies VALTEC, model VT.085.N, which has proven itself well. Plumbers and installation companies enjoy using these products to this day, but pressure reducers VALTEC do not have detachable connections, which in turn greatly simplify the installation and subsequent maintenance of devices.

In water pressure regulators, the function of detachable connections is implemented. The basic set includes American 1/2x3/4", This functionality was previously available only in premium gearboxes, for example pressure reducer FAR HP-HP series FA 2810 or pressure reducing valve Honeywell D06F B. But the cost of such models is significantly higher than that of gearboxes from the manufacturer OFFICINE RIGAMONTI, while the permissible maximum temperature is FAR And Honeywell70°C, What 10°C less than OR gearboxes, there is an acceptable temperature 80°С , the safety margin of OR membranes adds reliability to the water supply system.

Today, a variety of types of equipment can be connected to cold and hot water supply systems: from ordinary mixers and plumbing fixtures to complex and expensive household appliances. As a rule, the performance of all this equipment depends on the stability of the water pressure in the pipeline. However, for our engineering systems, pressure drops are commonplace, which forces us to look for additional solutions to protect plumbing equipment and household appliances. For this purpose, special devices are used - pressure regulators, which our company sells in Moscow at competitive prices.

Application of pressure regulators

A household pressure regulator, or reducer, is a device that allows you to maintain constant water pressure in the pipeline. These devices are widely used not only in everyday life, but also in the commercial sphere, as well as in small industrial facilities.

The main purposes of using gearboxes:

Protection of utility networks from water hammer.
Protection of plumbing fixtures and household appliances from failure due to pressure changes.
Reducing water consumption.
Maintaining stable outlet water pressure.
Reducing the noise of water flow.

Types of pressure regulators

The main operating element of the gearbox is a control device in the form of a valve. As water pressure increases, it reduces its flow area, which leads to a decrease in water pressure at the outlet. When the inlet pressure drops, the valve opens, causing the outlet pressure to increase.

Today, several types of pressure regulators can be used, the choice of which depends on various parameters. Depending on the method of maintaining pressure, static and dynamic water regulators are used. Static regulators are used for installation in water supply systems in apartment buildings and private buildings, which are characterized by uneven water intake. Dynamic regulators are used in cases where the water flow in the pipeline is continuous. In the domestic sphere, such devices can be used, for example, to protect heating system equipment.

Depending on the type of connection to the pipeline, gearboxes with threaded (coupling) or flange connections are distinguished. The most common in everyday life are coupling pressure regulators.

Depending on the type of control device, diaphragm and piston gearboxes are distinguished. Diaphragm regulators are characterized by high reliability, resistance to corrosion and contamination. However, their weak point is the membrane, the condition of which must be regularly monitored. Piston pressure regulators are not subject to wear and can have a virtually unlimited service life. Their disadvantage is the rather high maintenance requirements. In addition, if there are abrasive contaminants in the water, such as sand particles, the gearbox may fail.

High-quality pressure regulators at competitive prices

The Santekhkomplekt company offers high-quality household pressure regulators in Moscow. We sell devices of all types that are optimally suited for various configuration options. All regulators in our catalog are products of leading manufacturers, devices that are characterized by a high level of accuracy, reliability and durability in operation. With their help, it is possible to provide effective and reliable protection of plumbing fixtures, equipment and household appliances from changes in water pressure in the system.

In our company, pressure regulators are sold at prices that are favorable to buyers.

The installation of plumbing equipment in a home, business or municipal institution is usually carried out in accordance with all rules of maintenance and operation. Most consumers purchase plumbing fixtures from reliable manufacturers, but some factors can damage any fixture. For example, changes in water pressure in the water supply system often cause equipment breakdowns. To solve this problem, it is worth installing a water pressure regulator.

What is a water pressure regulator, what is the principle of its operation

A regulator, or water pressure reducer (WPR) is a special regulating device for plumbing that maintains normal water pressure. Sudden changes in pressure can not only ruin expensive equipment, but also damage repairs in an apartment or house, which leads to new expenses. The gearbox mechanism is able to reduce the fluid supply force to a normal level and prevent water hammer.

There are two types of RDV design, differing in the direction of regulation:

from oneself - works in a pipeline installed on a plumbing outlet;
to yourself - works on the main line towards the plumbing fixtures.

The principle of operation of both types is to change the cross-section of the valve. At a stable pressure that does not exceed the norm, the working valve is kept open. Minor surges cause the valve to automatically close, which reduces the pressure and reduces the risk of breakage of drainage pipes.

brass or steel body (1) with a lid (2) and a plug (3);
adjusting bolt for adjusting the mechanism (4);
nut for fixing the bolt (5);
piston rod (6, 13) with cylinder (8);
mechanical springs (7);
membrane (9) with distribution ring (10) or piston in mechanical model;
a working valve consisting of a screw (11) and a gasket (12);
seal (14) and damper chamber for the plug (15).

Also, gearboxes, depending on the manufacturer and purpose, are equipped with additional elements - air valves, filter, pressure gauge, ball valve.

Hot and cold water regulators are static and dynamic. The former maintain a set pressure level on a constant basis, the latter are designed for continuous water supply and flow. Gearboxes are used in domestic and industrial municipal water supply, at pumping stations and in fire services, as well as at water filling stations and reclamation stations.

What types of regulators are there in the water supply system?

Modern stores offer the purchase of water pressure reducers of any type and purpose. There are several classifications of types of RDV.

Regulators that differ in their internal structure and operating principle:

piston - mechanical devices, in demand due to their low price and ease of use;
membrane - more powerful and expensive devices, powered by springs and a diaphragm.

Types of regulators according to control method:

electronic - equipped with an electric sensor that scans the pressure to activate the pump;
automatic - equipped with a block with springs and nuts that are sensitive to pressure changes.

Piston reducer it operates from springs, a piston and a valve, which, depending on the pressure, control the operation of the spool. The advantages of this design are affordable cost, ease of installation and a simple, reliable mechanism. Among the disadvantages, it is worth noting the high sensitivity to dirt and friction of parts.

Diaphragm reducer characterized by increased throughput, excellent performance and long service life without breakdowns. The device operates from a spring-loaded diaphragm, which is located in a special sealed compartment. Such devices have a high price, but it is justified by powerful technical characteristics.

There are also flow regulators, which are rarely used but have good properties. They do not have a moving mechanism - the internal structure consists of numerous ducts and compartments. Water entering such a labyrinth slows down the speed of movement, which reduces its pressure and protects the plumbing from water hammer.

Technical characteristics of popular RDV models

Regulator type	Connection Diameter (inch)	Pressure adjustment limits (Bar)	Throughput (m³/hour)	Nominal water flow (m³/)
With filter and pressure gauge	1/2	2-5	1,40	0,95-1,27
With filter and pressure gauge	1/4	2-5	2,44	1,70-2,27
Flow limiter	1/2	2-4	1,98	0,95-1,27
Membrane	1/2	0,5-7	1,85	0,95-1,27
Membrane	3/4	0,5-7	2,60	1,70-2,27
Piston	1/2	1-4,5	1,60	0,95-1,27
Piston	3/4	1-4,5	2,61	1,70-2,27
Piston	1	1-4,5	3,34	2,65-3,53
Piston	1 ¼	1-4,5	4,89	4,34-5,79
Piston	1 ½	1-4,5	7,85	6,78-9,00
Piston	2	1-4,5	10,8	10,6-14,1
Piston with pressure gauge	1/2	0,5-5,5	1,6	0,95-1,27

Installation of the RDV regulator

It is recommended to trust the installation of the water pressure reducer to specialists and experienced craftsmen. This is the only way to guarantee reliable, long-lasting operation of the device without unscheduled repairs. If you have practical experience in installing plumbing fixtures or measuring equipment on pipes, you can install the RDV yourself.

The procedure for installing the gearbox in an apartment:

Turn off and shut off the water throughout the riser. If necessary, notify your neighbors about the temporary shutdown.
Place an inlet valve on the pipe between the ball stop valve and the meter.
Attach a large particle filtration system behind the meter.
Install the control device on a horizontal pipe.
Seal all joints of parts using sealant.
Adjust the position of the pressure gauge so that the dial is clearly visible.
Connect the installed RDV to the ball valve, check the smooth operation of the device.

Installation of the RDV in a private country house differs slightly from that in an apartment. To prevent water hammer and breakdown of plumbing equipment in the house, you should install the regulator immediately behind the meter, and then install a check valve, filter and faucet.

To choose a reliable device for regulating water pressure, you need to know some parameters that should be taken into account:

Bandwidth. For domestic use, 0.1-0.15 m³/hour is recommended, for commercial use - 0.2-0.3 m³/hour, for industrial use - over 0.3 m³/hour.
Allowable pressure loss. With low water consumption, 1-2.5 Bar is considered the norm, with average - 2-5 Bar, with high water consumption - 4-7 Bar.
Bore diameter. Measured in inches and depends on the purpose. For residential buildings, the diameter should be ½-¼ inches, for industrial buildings - from ¾ to 2 inches.
Connection method. There are flange and threaded (coupling) connections of parts, which differ in the type of fastening and cost.

If you have a choice whether to install a water pressure regulator or not, the answer is clear - install it. The device fully justifies its cost, and consumers note many advantages of installing the RDV:

reliable and durable resistance of plumbing fixtures to hydraulic loads and pressure changes;
long-term preservation of plumbing equipment in a house, apartment or enterprise;
financial savings due to reduced water use;
absence of noise in the pipeline and during operation of the gearbox;
stable outlet pressure regardless of the input level.

Review of the best gearbox manufacturers

The Russian market offers a huge range of water control devices from various manufacturing companies. Over many years of sales, some of them have proven their authority and competence in the manufacture of RDV.

VALTEC. An Italian company with an official representative office in Russia. Production processes are fully automated, eliminating the human factor. We have our own laboratory to test product functionality.
HONEYWELL. A concern from Germany that appeared in Russia 45 years ago. Gained worldwide fame thanks to modern developments in the field of engineering communications, energy resources, oil refining and space industries;
ICMA. The company's main office and plant are located in Italy, from where products for water supply, heating, ventilation, and air conditioning are supplied to Russian cities. Management pays special attention to raw materials, which is appreciated by customers.
AQUASFERA. A well-known Russian company specializes in the manufacture and sale of control, shut-off and safety valves, and also supplies valves, fittings, filters and pipes to most cities in Russia.
WATTS. A company from the USA with many branches in European countries, which is focused on the production of devices for the control, purification, supply and consumption of water resources. The brand's products are intended for both the residential and industrial sectors.

It is also worth noting such leading global brands as FADO, DANFOSS, GIACOMINI, EDD, ALTAIS. Engineering and communication products from VALTEC are especially in demand, as they are distinguished by stable technical characteristics, long service life and affordable prices. You can buy VALTEC water pressure regulators from us, the official representative of the brand.