Membrane expansion tank of the heating system reflex. Membrane expansion tanks Reflex: device and operation features Horizontal expansion tank reflex

Reflex expansion tanks are designed to accumulate and store the necessary water supplies, maintain the required pressure in the circuit and protect against water hammer. Tanks of this brand are made of environmentally friendly materials and equipped with an elastic heat-resistant membrane, which allows the use of containers also for hot water.

Features and types of Reflex water tanks

Modern models of tanks for heating and water supply from Reflex are made from food grade steel and coated with a polymer layer that protects the material from corrosion. The containers are available in white and red.

In many tank models, the nitrogen chamber is factory filled with gas to a pressure of 1.5 bar. Depending on the configuration, the tank can be equipped with a non-replaceable membrane or a replaceable shell. The containers presented for sale differ in nominal volume, shape, dimensions and operating pressure ranges - from 3 to 10 bar. Many tanks from the range are capable of storing liquids up to 120 °C. Small expansion tanks Reflex, for example, model NG8, can be mounted on a wall in a vertical position. Larger tanks must be installed on the ground using special supports.

All Reflex tanks available on the market fall under the following classification:

• N-configuration expanders have a volume of 200 liters or more. up to 1000 l. These tanks are equipped with a non-replaceable diaphragm and work with a pressure not exceeding 6 bar. Tanks of this type are distinguished by endurance and long periods of use;
• Configuration G Tanks - These Reflex membrane tanks are equipped with a replaceable membrane. These tanks are available for sale in a wide range of capacities - from 100 to 1000 liters. If desired, the buyer can purchase a tank with a capacity of 5 thousand liters. by prior order. These tanks can be flanged or threaded and are only available in red;
• Membrane tanks Reflex of the N series are produced specifically for constructions with a solar collector. On sale you can find containers with a volume of 2-600 liters. These tanks are equipped with a non-removable membrane and have a threaded connection;
• Tanks from the S range are capable of operating at a pressure of 10 bar. Models with a capacity of 2–500 liters are on sale. These tanks are equipped with a non-removable membrane and have a threaded connection;
• Reflex hydraulic accumulators are produced with the DD marking. These devices are designed and manufactured specifically for use in tandem with heating mechanisms. The customer can choose the Reflex accumulator in white or green. Models have a volume of 8–33 liters. The maximum allowable pressure for the operation of the devices is 10 bar.

The advantage of Reflex products is a wide range of containers. Each customer can choose for himself a large household tank with a volume of more than 800 liters, or a small household service tank with a volume of less than 50 liters.

Reflex NG 25 - description and applications

This pressure tank is equipped with a non-removable membrane and is used to compensate for the coolant when the fluid temperature changes in refrigeration and heating systems.

The main characteristics of the tank include:

• Volume - 25 l;
• Maximum working pressure - 3 bar;
• Diameter - 30.8 cm;
• Height - 48 cm;
• Weight - 4.6 kg.

Due to the mobility of the membrane and the tightness of the tank, the pressure of gas in one chamber and water in the second is constantly at the same level. This helps to protect the tank from depressurization.

Reflex NG 35 - model characteristics

This expansion pressure tank is used in closed cooling and heating systems. The tank is made of high quality materials and covered with a layer of protective polymer composition. Reflex membrane expansion tank has the following characteristics:

• Volume - 35 l;
• Maximum working pressure - 1.5 bar;
• The maximum temperature of the working fluid is 120 °C;
• Diameter - 37.6 cm;
• Height - 46.5 cm;
• Weight - 5.4 kg.

The inner cavity of the tank is divided into two chambers by means of a membrane. The first chamber is filled with gas, and the working fluid enters the second chamber.

Reflex NG 50 tank description

This model is made using high quality materials and covered with a layer of high-quality polymer composition. Among the characteristics of the model, it is necessary to highlight:

• Volume - 50 l;
• Maximum pressure indicator - 3 bar;
• The maximum allowable liquid temperature is 120 °C;
• Diameter - 44.1 cm;
• Height - 49.5 cm;
• Weight - 12.5 kg.

The tank is divided by a membrane into two chambers. The first of them is designed to fill the gas, and the second - to store water.

Reflex DE 80 - hydraulic accumulator characteristics

This popular model has been successfully used in buffer and damper tanks in booster plants, as well as water heaters. The main characteristics of the model include:

• Capacity - 80 l;
• The maximum allowable pressure is 10 bar;
• Weight - 16 kg;
• Height - 73 cm;
• Diameter - 48 cm.

This accumulator is divided into 2 chambers by means of a membrane. The tank is completely sealed, characterized by long service life and reliability.

Reflex DE 100 and DE 200 - model description

These tanks are successfully 100 and 200 liters. used for fire fighting, water supply, pressurized structures and excess water storage. The membrane for the accumulator has a pear-shaped shape. The main characteristics of the tanks include:

The manufacturer provides a 2-year warranty for these models. Most tank parts are made of butyl and coated with a protective polymer layer.

Reflex DE 300 – design and features

This model is equipped with a non-removable membrane dividing the tank into two chambers. The first of them is designed to be filled with gas, and inside the second is stored water. Among the characteristics should be highlighted:

• Volume - 300 l;
• Maximum pressure - 10 bar;
• The maximum liquid temperature is 70 °C;
• Weight - 53 kg;
• Diameter - 63.4 cm;
• Height - 1.27 m.

This model is successfully used for fire extinguishing, water storage and coolant compensation in heating systems.

Expansion membrane brands Reflex are modern high-tech containers. These devices protect engineering systems with pumps and valves from sudden pressure surges. The devices successfully compensate for the thermal expansion of the fluids used in the systems.

Specifications

Modern containers used as an expander have similar qualities.

Reflex tanks have the following general features:

• The membrane tank is made only from a qualitative basis.
• The product is necessarily covered with polymer compounds that perform the function of corrosion protection.
• Tanks are available in various colors.
• The membrane is a container shell that cannot be replaced.
• A hydraulic accumulator with a membrane for heating provides for a compartment filled with gas, which is replenished in production to a pressure of 1.5 bar.
• The operating instructions for the tanks indicate that they can be used at maximum temperatures up to 120 degrees.

The only distinguishing characteristic of the Reflex tanks in this range is the nominal volume and shape. Possible options are from 3 to 10 bar. Tanks can be mounted both on the wall and on supports mounted for the tank.

Tanks are produced in various series, each of which has its own indicative qualities.

For example, Reflex DE 100 containers have:

• volumes - up to 100 liters;
• weight - 27 kg;
• dimensions: 48 cm diameter, 83 cm - height.
• throughput pressure - 10 bar;
• the highest operating temperature - 70 degrees;
• the lowest operating temperature - 10 degrees;
• nitrogen pressure in the gas chamber - 4 bar.

Additional features include:

• membrane rupture device;
• threaded connection;
• epoxy outer coating.

Tank installation requirements vary and are usually related to the quality of the system. Capacities are different in purpose. This is usually indicated in the accompanying documents to them.

Purpose

Reflex accumulators can be used as:

• protection of the engineering network from shocks caused by hydraulic influence;
• a water tank, which is necessary in the event of a temporary lack of water supply;
• expansion tank suitable for hot water systems;
• a reliable part that improves the operation of plumbing or heating equipment.

Most often, containers are used in private homes as expansion tanks for water heating. Tanks are also used in industrial plants.

For the manufacture of containers, high-quality materials with polymer coatings are used. Standard containers are divided into two parts. A low-inert gas, nitrogen, is pumped into one of them at the production site. Water can be pumped into the second chamber.

The gas compartment is separated from the liquid chamber by a rubber membrane. The delivery pressure is regulated by a pneumatic valve. It helps to bleed off the excess volume that occurs in the water chamber when the liquid is heated. Water can be pumped into the tank.

When a certain threshold is reached, a relay is activated that turns off the pump. When water is taken from the tank, the pressure drops, the device automatically activates the pump. Hydraulic tanks are characterized by different efficiencies, which are often related to their volumes.

Advantages and disadvantages

Reflex is a German manufacturer whose products have a lot of positive reviews. They testify to the reliability of the equipment. Users note the strength of the base, the wear resistance of the membrane.

The hydraulic tank has other positive qualities:

• It does not need to be connected to electricity.
• Installation is simple.
• Application is possible, regardless of the type of coolant.
• The range is presented in a rich variety.
• It is possible to connect to the central water supply system.
• Let's choose among solar-collector type options that are connected to heating systems.
• The ingress of oxygen into the pipelines with the coolant is excluded.
• There is no need to control the amount of water in the system.
• No need for thermal insulation.

Despite the numerous advantages, users note some significant disadvantages of hydraulic tanks. For example, sometimes maintenance is difficult. In heating circulation systems, there is a need for constant pressure control, while it is necessary to systematically pump. The upper part needs to be equipped with a valve that will help remove excess air. This air can still be in the system.

Often, users rank as a minus and an irreplaceable inner membrane. But the manufacturer claims that the shell can serve for a long time and very rarely loses its functional features ahead of time.

Also, the disadvantages of many include the high cost of products. However, it is worth noting here that the cost of models is associated with the presence of additional components. At the same time, the most expensive models belong to the latest generation of the S series.

Cheaper will cost users of containers of 8-140 liters, which are labeled NG. By the way, the G series includes expansion tanks with a membrane that can be changed. Models of the N series are the cheapest in terms of cost.

Range overview

Diaphragm tanks DD series- These are structures called hydraulic accumulators. The use of structures is possible in individual water supply systems in conjunction with heating elements. The volume of containers varies from 8 to 33 liters. Models come in white or green.

This range includes sub-series DT 5, DE, HW volume up to 500 l. These membrane structures are designed for systems with high water consumption. They are used in household, personal or fire systems.

Pneumatic tanks DE for an aqueous carrier, they are usually blue. The presence of flow or drain additional devices is not provided. As a rule, models are used in household or individual water supply systems, as well as fire protection systems. The production pressure is up to 25 bar. Models from 50 liters are supplied with a replaceable membrane.

Tanks HW they are also blue, usually of a horizontal type, with a volume of 25 to 100 liters. Are applied to systems of individual water supply as capacity for a stock of water. The pressure in the tank is 10 bar. The model provides for the possibility of mounting auxiliary pumping equipment. Special legs and hooks are available as accessories.

Differ in smaller volumes C series tanks- up to 80 liters. Models are made of high-quality material called butyl rubber. Mounting is possible on the wall using a special loop. The shape of the structure is improved, flat, cylindrical.

F series tanks differ in even smaller volumes - from 8 to 24 liters. Containers, as a rule, are round or cylindrical in shape, supplemented with hooks for installation. Some variations have additional options, but the price depends on their availability.

S-series tank options can be used for both water supply and heating. Tanks range from 2 to 600 liters. The composition of the equipment includes a threaded connection and a membrane shell that cannot be replaced. Capacities can be used for systems with antifreeze with a concentration of not more than 50%.

G-series tanks- These are quite diverse models that can hold from 100 to 1000 liters. Special execution of capacities up to 5000 liters is possible. Pneumatic pressure gauges, threaded or flanged connections are available as equipment. Capacities provide a replaceable membrane. They usually come in red.

N-series variants come in volumes from 200 to 1000 liters. Tanks are equipped with a non-removable membrane, which is considered the most resistant to wear. Practice shows that the service life of such tanks is the best.

Variants of the NG series 35 have a capacity from 8 to 140 liters with a nitrogen chamber of approx. 6 bar and equipped with a threaded connection. The containers of this series may have various additions, on which the final cost of the products will depend.

Calculations of the volume of containers are associated with several parameters:

• the total volume of the system;
• coolant composition;
• membrane capacitance efficiency.

The correct calculation formula will look like this: V= (VL*E) |D, where:

• VL is the total capacity of all components of the system (pipelines, radiators, boiler);
• E is the expansion coefficient of the liquid, which is related to its temperature and quality;
• D is the efficiency of the membrane capacitance.

You can also consider the following indicators:

• If the boiler is solid fuel, then its volume can be from 10 to 25 liters.
• If the boiler is parapet or runs on gas, then its possible capacity is from 3 to 7 liters.

To properly organize the heating of a private house, an expansion tank is needed. It accepts the excess volume of coolant formed during heating and returns the cooled liquid back to the system. A membrane tank (the second name is expansomat) from the German company Reflex is popular with homeowners. Before you buy equipment, you should find out how it works, study its advantages and disadvantages, calculate the volume, familiarize yourself with the installation rules.

The purpose of using the Reflex expansion tank is to prevent leaks and rupture of pipes due to the increase in water pressure when it is heated. The equipment is used in autonomous heating systems, ensuring their hydraulic stability and increasing the life of all components.

Tank design features

The membrane expansion tank is a hermetically sealed container. With the help of an elastic rubber membrane, the internal space is divided into two cavities: the first is intended for the coolant, the second is filled with nitrogen under pressure. In addition to the main nodes, it includes the following elements:

1. nipple for filling the upper chamber with air and relieving pressure;

2. fitting for bleeding air;

3. fitting for connecting the pipeline of the heating system;

4. connecting flange;

5. supports - for large models:

6. pneumomanometer - in models with a replaceable membrane;

7. Level control sensor.

The expansion tank works as follows. When the heating is turned on, the coolant heats up from 20 to 90 ° C and expands (by about 0.4%), rushing into the lower chamber of the tank. Water presses on the membrane, and it, in turn, compresses the gas in the upper chamber. When the temperature drops, the reverse process occurs: the coolant narrows, the gas presses on the membrane, and it pushes water out of the liquid chamber into the system. The membrane tank receives water not only during gradual heating, but also during sudden pressure surges, unscheduled shutdown of boiler equipment.

Reflex expansion tanks are made from steel sheet, coated with anti-corrosion polymer material. The membrane may be replaceable or non-replaceable. Models have a different shape, dimensions, volume. Operating pressure ranges vary from 3 to 10 bar. The maximum heat carrier temperature is up to 120°C.

Installation nuances

According to the method of placement, Reflex are divided into two types: wall-mounted and stationary (on supports). These features must be taken into account when choosing a room for the tank. Installation and connection of the expander can be entrusted to a plumber or carried out independently if you have practical skills in such work.

When installing an expansion tank, a number of requirements must be met.

1. In the room intended for installation, there must be a positive temperature.

2. The equipment is placed so that it is not difficult to approach it for periodic inspection and preventive maintenance. Free access to the air valve for pressure adjustment, connecting fittings and pressure gauge is required.

3. No structures should be supported on the tank so as not to create an unnecessary static load.

4. Reflex with a capacity of 8 to 25 liters is mounted on the wall, the mounting kit is purchased separately.

5. Additionally, it is worth buying a shut-off valve protected from accidental closing, equipped with a drain valve - it is needed for maintenance.

6. Connection to the system is carried out on the suction side of the circulation pump in the return pipe of the boiler.

7. The make-up circuit is connected to the circulation line and not to the expansion line.

Volume calculation

The working capacity of the expander depends on several parameters: the total volume of the system, the composition of the coolant, the efficiency of the membrane tank. The calculation formula looks like this:

V = (VL x E): D, where:

• VL - the sum of the volumes of all elements (boiler heat exchanger, radiators, pipelines);
• E is the expansion coefficient of the coolant, depends on its temperature and composition;
• D - tank efficiency.

Now more about how to find the quantities included in the formula.

1. The calculation of the total volume of the heating system is rather complicated. The volume of the heat exchanger is found in the boiler passport. If there are no instructions, take into account: a solid fuel boiler holds from 10 to 25 liters of water, a parapet gas boiler - from 3 to 7 liters.

The volume of water in the pipes depends on their diameter and length. According to the reference book, they find the internal volume (in liters) of a linear meter of the desired pipe, multiply the displacement by the length of the section, and summarize the products. The working volume of radiators is found in the instructions or from the manufacturer. On average, the specific volume of a convector is 7.0 l/kW, a radiator is 10.5 l/kW, and a warm floor is 17 l/kW. To speed up the calculation, the total volume is found using a simplified formula: multiply the power of the heating system in kilowatts by 15 liters.

2. The coefficient of expansion of the coolant E depends on the temperature and the content of ethylene glycol. For water without impurities at +95°C, this figure is 0.036 (about 4%). If 10% ethylene glycol is added to the working fluid, E \u003d (10-4) * 1.1 \u003d 4.4%. Expansion coefficient for a 20% solution: (20-4) * 1.2 \u003d 4.8% and so on.

3. The efficiency of the Reflex expansion tank for heating is a relative indicator determined by the formula: D = (P v - P s) : (P v +1). Here P v is the maximum operating pressure at which the safety valve is activated (for cottages, P v = 2.5 bar is accepted). P s is the pressure of the membrane tank charging, proportional to the static pressure in the system as 1:10. If the heating height in a 2-storey house is 5 m, the charging pressure should be 0.5 bar.

For example, the calculation of the minimum volume for a system with a power of 45 kW and a height of 5 m is given. A 20% aqueous solution of ethylene glycol is used as a heat carrier.

• VL \u003d 45 * 15 \u003d 675 l;
• E = 0.048;
• P v = 2.5 bar; PS = 0.5 bar;
• D \u003d (2.5 - 0.5): (2.5 + 1) \u003d 0.57.

The volume is V \u003d 675 * 0.048: 0.57 \u003d 56.84. You need to purchase the Reflex DE 60 model with a volume of 60 liters.

Advantages and disadvantages

Products from the German manufacturer have a lot of positive feedback, indicating the high strength of the case, the wear resistance of the membrane, and the reliable operation of the equipment. Other advantages of Reflex should be listed:

• no connection to the mains is required;
• ease of installation;
• it is used regardless of which coolant the heating works with;
• wide model range;
• possibility of connection to water supply;
• you can choose a model compatible with solar-collector heating systems;
• oxygen does not enter the pipes with the coolant (due to the fact that the chamber is isolated), therefore, the likelihood of corrosion is reduced;
• no need to add water to the system;
• no need for thermal insulation.

Despite a lot of advantages, a two-chamber expansion tank also has disadvantages. They are associated with certain difficulties in maintaining the equipment.

1. If the heating works on a closed principle, you need to constantly monitor the pressure, systematically pump up air.

2. A valve must be installed in the upper part to remove air, which sometimes still enters the system.

Sometimes, among the minuses, an irreplaceable shell is called, although it is designed for a long service life and rarely fails.

Price

The price depends on several factors: volume, availability of additional accessories, the ability to include an expander in solar heating. The cost of models of the last type (marking S) is the highest. Inexpensive expanders with a capacity of 8-140 liters are marked with the letters NG. The G series includes expansion tanks with a volume of 200-1000 liters with a replaceable membrane. The cost of equipment is shown in the table.

The German company Reflex offers the widest range of expansion tanks for water supply, water treatment and heating on the market. They are closed containers with a rubber membrane that separates the gas zone (nitrogen pad) from the liquid compartment.

Designed to accumulate and store a reserve supply of water (made from environmentally friendly materials that are safe for human health), maintain pressure in the circuit, and prevent water hammer. For the heating system, any Reflex expansion tank (expansomat) is equipped with an elastic heat-resistant membrane. Its main task is to serve as a damper, to maintain the necessary pressure. When heated, excess liquid is collected inside, which, cooling, returns to the circuit again. Also, it performs a protective function against water hammer.

Classification

Modern expansion membrane tanks manufactured by Reflex for cooling and heating systems are made of steel and coated with a polymer composition for corrosion protection; offered in red or white. The gas (nitrogen) chamber of many models is filled at the factory to a pressure of 1.5 bar. They are supplied with a replaceable shell or a non-replaceable membrane. The equipment differs in shape, nominal volume, dimensions and operates in different pressure ranges (from 3 to 10 bar). The maximum allowable temperature for most expansion mats is 120 °C. Small volume models, such as the Reflex NG8 expansion tanks, are mounted vertically on the wall. Large ones are installed on supports specially designed for this purpose.

All options for heating are presented in rows:

1. Welded NG tanks with a non-removable membrane, available in capacities from 8 to 140 liters, the maximum working pressure is 6 bar. Connection - carving. The price range is from 1,280 to 13,100 rubles.

2. N expansion machines have a nominal volume of 200-1000 liters and are equipped with a non-replaceable diaphragm, pressure - 6 bar. Reviews indicate that the non-replaceable membrane is highly wear resistant and designed for a long service life. The cost is 13,860–75,190 rubles.

3. The Reflex G series are membrane tanks with a replaceable diaphragm. They are offered in a wide variety of models, nominal capacities ranging from 100 to 1,000 liters or up to 5,000 in special designs. Working pressure 6 or 10 bar, preliminary - 3.5. Equipped with a pneumomanometer, available with threaded or flanged connection, only in red. The price, as in previous cases, depends directly on the volume. So, the cost of the G 100 models is 63,350 rubles, the tanks for Reflex G 1000 heating systems can really be purchased for 202,370, and the types of maximum capacity - for 782,570.

4. S-series models are designed specifically for solar systems, operate at pressures up to 10 bar, and can be used for refrigeration and heating. Capacity from 2 l to 600 l. Expansion tanks are completed with an irreplaceable membrane, connection - carving. Suitable for use in systems with antifreeze concentrations up to 50%. The price for them ranges from 2,250 (for S 2) to 89,120 rubles (S 600).

5. Reflex F have a flat shape, therefore, installation in heating boilers is acceptable. Nominal capacity 8–24 l. The initial pressure is 0.75 or 1 bar, depending on the model, the limit is 3 bar. The 8-liter version is round, the rest are rectangular. From F 18, there are mounting hooks on the housing. The cost is 3,690–6,130 rubles.

6. The C series expanders, thanks to the improved flat cylindrical shape, can be installed in boilers. A special loop is provided for placement on the wall. There are models with a non-replaceable butyl rubber membrane, with a volume of 8-80 liters, a pre-pressure of 1-1.5 bar. Maximum - 3 bars. Approved for use in systems with up to 50% glycol in the liquid. The cost is 2,840–8,070 rubles.

Reflex tanks are intensively used for technical and drinking water supply. Models of different volumes are used as vessels for water heaters or buffer and damper tanks in booster installations. All aquifers are protected by a special coating against corrosion. Water is stored in rubber bulbs that meet the hygienic and sanitary standards of drinking water products and are not susceptible to bacteria.

DD - hydraulic accumulators are designed for use in individual water supply systems with water heating mechanisms; they can be used as damper accumulators in booster installations. Often the scheme of Reflex membrane tanks of this series is complemented by Flowjet flow fittings. Available in white or green, from 8 l to 33 l. The preliminary pressure is 4 bar, the maximum allowable working pressure is 10, equipped with High-Flow (star insert). The price for them ranges from 5,040–12,190 rubles. Model Refix DD 8, 25 bar costs 11,220.

Refix DT5 green flow expansion tanks are designed for systems with high water consumption. Volumes from 80 to 3,000 liters, with a maximum working pressure of 10 or 16 bar. Equipped with threaded connection and flow fitting with Flowjet drain. The cost of hydropneumatic tanks for 10 bar ranges from 64,230 to 859,480 rubles, and you can buy Reflex expansion tanks of this series for 16 bar for 76,220–995,770.

Refix DE tanks are blue pneumatic hydraulic tanks without flow and drain fittings. They are used in household, individual, fire-fighting water supply systems or floor panel radiant heating. They are available in nominal volumes of 8–5,000 liters and are designed for pressures of 10, 16 or 25 bar. Models over 50 liters have a replaceable diaphragm. They are offered in the price range from 3,940 rubles (DE 8/10) to 201,440 rubles (DE 1000/10).

Refix HW includes blue horizontal tanks with volumes from 25 to 100 liters. They are used in individual water supply mechanisms as buffer tanks. Withstand pressure up to 10 bar. Equipped with feet and mounting hooks to accommodate an auxiliary pump. Prices for products in this series range from 2,380 to 9,060 rubles.

Buyer opinions

“I installed Reflex NG 18 on the return pipe of the heating system in front of the circulation pump. Took with a small margin. There were doubts about the non-replaceable membrane, but for about 3 years it has been working without problems.

Dmitry, Moscow.

“In the cottage, the water supply system was equipped as follows: a borehole pump supplies water to a 300-liter Reflex storage tank with a relay. Further on the coarse filter and at home. The relay is set to fluctuate from 2 to 4 atm. The volume of the tank is completely enough for all needs. It has been functioning without repair for more than 3.5 years, only once a year a specialist conducts a preventive examination.

Vasily, Nizhny Novgorod.

“There was a need to change the heating in the house, the system was about 180 liters. Installed a circulation pump and a membrane tank. I wanted it with a replaceable diaphragm - I didn’t find it for the right volume. I decided to trust the German quality - I bought Reflex N 18 white. I have worked only 2 heating seasons so far, I have no complaints.”

Timur Kireev, Chelyabinsk.

“For an autonomous water supply system, we bought a pump with a capacity of 3.5 m3 / h and an expansion tank of the Reflex DE 100 model about a year ago. We chose it for a removable membrane with antibacterial properties. There is enough for our family (4 people), although we like to splash in the shower. The equipment functions properly, everyone is happy.”

Kirill, Volgograd.

“The length of the wiring around the house is about 40 m of a 2-inch pipe, 50 sections of cast-iron radiators. I installed a closed tank of the German Reflex at 18 liters. The system works like clockwork, without failures.

Mark, Yekaterinburg.

Overview of benefits

Some users consider the non-removable shell to be a minus of certain models, although numerous positive reviews about Reflex tanks indicate the significant wear resistance and durability of this part. Other benefits include:

• high strength, reliability and long service life;
• significant hydraulic stability;
• no need for additional power supply;
• ease of installation and operation;
• possibility of use in systems with different heat carriers;
• a variety of capacities of size ranges;
• wide areas of application - heating, water supply and more;
• availability of equipment with a removable membrane;
• use in solar-collector systems is admissible;
• equipment with an alarm that is triggered when the shell breaks on Refix DT5 and DE models, with a volume of 60 liters or more;
• the presence of manometers;
• high quality at an affordable price.

Excessive pressure in the water supply system negatively affects durability, so compensating devices have been developed. The Reflex membrane expansion vessel has excellent performance characteristics, including ease of installation and durability. Each presented vessel complies with the current GOST, so it is perfect for pipelines even in large-scale heating and water supply systems.

Construction work

Before buying a membrane tank from the manufacturer Reflex, you need to consider the general features of the work.

The division is carried out in 4 stages:

• normal conditions exclude increased pressure in the network;
• an increase in temperature in the system provokes an increase in pressure;
• an increase in the indicator becomes the reason for the spontaneous connection of the Reflex tank to the water supply;
• when the liquid cools, the vessel pushes it back into the pipeline.

Ordering Reflex products allows you to be sure of the durability and stable operation of the system.

The use of membrane elements

There are many areas for which you need to buy Reflex products with delivery. The metal case is resistant to most influences and can be installed in almost any room. The diaphragm is made from butyl, making it ideal for use in unstable environments.

Contact our company in Moscow and purchase Reflex expansion tanks at affordable prices for everyone. The catalog contains dozens of options that have special operational features.