Installation of hydraulic arrow. Hydraulic arrow for heating made of polypropylene - recommendations for manufacturing. Why is the temperature of the coolant after the hydraulic switch less than at the inlet?

A hydraulic arrow is often used in the heating system. The operating principle, purpose and calculations of this device will help you understand what it is used for. The hydraulic arrow is a temperature and hydraulic buffer that ensures correct correlation of coolant flow and temperature conditions. Using the device, the heating circuits are separated hydraulically.

Using a hydraulic arrow you can create a safe heating system

Many heating systems in private households are unbalanced. The hydraulic arrow allows you to separate the circuit of the heating unit and the secondary circuit of the heating system. This improves the quality and reliability of the system.

When choosing a hydraulic gun, you need to carefully study the principle of operation, purpose and calculations, and also find out the advantages of the device:

• the separator is necessary to ensure that the technical specifications are met;
• the device maintains temperature and hydraulic balance;
• parallel connection ensures minimal losses of thermal energy, productivity and pressure;
• protects the boiler from thermal shock and also equalizes circulation in the circuits;
• allows you to save fuel and;
• a constant volume of water is maintained;
• reduces hydraulic resistance.

The operating features of the hydraulic switch make it possible to normalize hydrodynamic processes in the system.

Helpful information! Timely removal of impurities allows you to extend the service life of meters, heating devices and valves.

Hydraulic heating device

Before you buy a hydraulic arrow for heating, you need to understand the structure of the structure.

The hydraulic separator is a vertical vessel made of large diameter pipes with special plugs at the ends. The dimensions of the structure depend on the length and volume of the circuits, as well as on the power. In this case, the metal case is installed on support posts, and small-sized products are mounted on brackets.

Connection to the heating pipeline is made using threads and flanges. The material used for the hydraulic arrow is stainless steel, copper or polypropylene. In this case, the body is treated with an anti-corrosion substance.

Note! Polymer products are used in a system with a boiler with a capacity of 14-35 kW. Making such a device with your own hands requires professional skills.

Additional equipment features

The principle of operation, purpose and calculations of the hydraulic arrow can be learned and performed independently. The new models have the functions of a separator, separator and temperature regulator. A temperature control valve provides a temperature gradient for the secondary circuits. Removing oxygen from the system reduces the risk of erosion of internal surfaces of equipment. Removing excess particles increases impeller life.

Inside the device there are perforated partitions that divide the internal volume in half. This does not create additional resistance.

Helpful information! Complex equipment requires a temperature sensor, a pressure gauge and a line to power the system.

The principle of operation of a hydraulic arrow in heating systems

The choice of hydraulic arrow depends on the speed of the coolant. In this case, the buffer zone separates the heating circuit and the heating boiler.

There are the following hydraulic connection diagrams:

• neutral operating scheme, in which all parameters correspond to the calculated values. At the same time, the design has sufficient total power;

• a certain scheme is used if the boiler does not have sufficient power. If there is insufficient flow, an admixture of cooled coolant is required. When there is a temperature difference, thermal sensors are triggered;

• the flow volume in the primary circuit is greater than the coolant consumption in the secondary circuit. In this case, the heating unit operates in optimal mode. When the pumps in the second circuit are turned off, the coolant moves through the hydraulic valve along the first circuit.

The performance of the circulation pump should be 10% greater than in the second circuit.

This table shows some models and their prices.

Image	Models	Properties	Cost, rub.
	Cidruss TPK -40-20*3	Low alloy steel. The power of the heating system is 40 kW. The maximum coolant temperature is 110 degrees.	5 680
	North – 60 K2 AISI	Connects two heating circuits, a manifold and a hydraulic booster. Warranty period 5 years. Power – 50 kW.	7 180
	IVR Hydraulic jib	Maximum pressure – 6 bar. Material – steel.	8 700
	Meibes VT 25 to 50 kW.	Suitable for closed type heating systems. Working pressure – 6 bar. Maximum temperature – 110 degrees.	15 200
	Valtec	Power -104. The body is made of bronze. Includes air vent, steel brackets and ball valves.	16 500
	Everest, flanged hydraulic separator.	Designed to protect cast iron equipment from thermal shock.	13 900
	Water gun Watts	Manufacturing material – high-alloy steel	11 800

Methods for calculating devices in a heating system

To make a hydraulic arrow for, you need to make calculations

This formula determines the diameter of the device according to the passport data:

The diameter is determined by the power of the heating device.

Using this formula you can determine the diameter of the pipe:

The diameter of the pipe must match the diameter of the outlet of the heating unit. The approximate size of small products is selected according to the size of the outlet pipes.

If the design does not use a collector, then the number of tie-ins should be increased.

Calculator for calculating the hydraulic arrow based on the boiler power

Calculator for calculating hydraulic pump parameters based on pump performance

The joint work of the hydraulic arrow and the heating manifold

When making a hydraulic arrow from polypropylene with your own hands, you need to perform the correct calculations and select the equipment with which it will work. In houses, secondary circuits are connected using this device. The distribution manifold is connected in the circuit after the hydraulic arrow. The structure consists of individual elements that are connected by jumpers.

The number of cut-in pipes depends on the contours. With the help of a distribution comb, the device can be repaired and maintained more easily.

The manifold and separator create a hydraulic element. This device is convenient for cramped spaces.

The following types of connections exist:

• a high-pressure circuit for radiators is connected from above;
• contour for the construction of heated floors from below;
• a heat exchanger is connected to the side.

With the help of control valves, pressure and flow are produced on distant circuits. A specialist with knowledge in heating engineering, as well as professional skills in plumbing, electric welding and working with special tools can make such a design.

Before work, you need to draw up the correct drawings and diagrams of the device. Carrying out critical heating elements for beginners can be life-threatening.

Hydroarrow. Device and purpose (video)

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How to make heating in a private house from polypropylene pipes with your own hands

This element has several equally used names: thermal hydraulic separator, hydraulic arrow, hydraulic separator, anuloid.

For boilers in the long-burning category, the use of a hydraulic arrow is more significant than for gas boilers.
This is due to the fact that boilers of this design operate in different phases: damping, combustion, ignition, etc. (according to a cycle). At all these stages it is important to maintain combustion in optimal conditions.

Hydraulic arrow - the operating principle of the specified CO element is to ensure balancing of the operating boiler relative to the heating system.

The hydraulic pointer device is a pipe with four pipes welded into it. Some manufacturers provide anuloid with additional functions:

• An air separator operating in cooperation with an automatic air vent;
• Availability of removable thermal insulation;
• A tap that allows you to drain coolant from the product;
• Sludge trap (i.e. the product performs the functions of a mud trap).

All of the above allows us to say that the hydraulic gun is a fairly important independent element of the CO.

Why is a hydraulic boom needed?

The heating system of any residential building is multifunctional. Moreover, each of its inherent functions must be implemented independently of the others in terms of pressure difference, coolant flow or time.

It is quite difficult to achieve this, since the coolant in all the mentioned subsystems comes from a single source, which leads to their interdependence and partial or complete imbalance of CO.

To avoid this result, hydraulic decoupling is performed in the CO. The device of the hydraulic needle is such a decoupling.

When building a CO (heating system) on a solid fuel boiler, which is the main source of heat, the water is heated by an indirect heating boiler, the circuit of which has an order of magnitude lower resistance than the resistance of the CO itself.

The latter, quite often, combines components with various hydraulic resistances (warm floors, bathroom, kitchen). That is, we have one heat generator and three consumers, each of which has its own temperature regime and resistance. They have to be combined. And this must be done without causing damage to any of these systems.

The answer to the question “what is a hydraulic arrow for?” simple enough. It allows you to divide the system into two practically independent circuits:

• The first is the heat generator circuit.
• The second is the general outline of the remaining subsystems included in the CO.

The presence of a boiler (first) circuit provides a technical opportunity to eliminate the influence of the second circuit on the heat generator. And vice versa.

In the general circuit, the subsystems included in it are decoupled according to the same principle. And their influence on each other is negligible.

The presence of such a device as a hydraulic separator in the heating system makes it possible to successfully solve this issue (balancing consumers and the boiler).

It is strongly recommended to use a hydraulic separator in a heating system in a heating system when, in its absence, the pressure difference between the return and supply exceeds 0.4 meters of water column.

Inside the hydraulic separator, hot and cooled water interpenetrate.

The hydraulic arrow operates in one of three possible modes:

1. The flow of the first circuit is equal to the flow of the second circuit. The mode is implemented with correctly selected pumps, provided that all boiler pumps and CO are operating simultaneously in normal mode.
2. The flow of the second circuit exceeds the flow of the first. It is implemented in cases where it is sufficient for CO that only one boiler from the entire cascade operates.
3. The flow of the first circuit exceeds the flow of the second. It is implemented when heat is not required to be supplied to all CO zones, or it is not necessary to be supplied at all.

The functioning of the hydraulic needle provides the technical ability to carry out deep regulation of the boiler of the specified design and CO. Therefore, it is not worth saving on it.

Calculation and selection of hydraulic arrows for the heating system

It is best to select a hydraulic arrow from those manufactured in the factory, then purchase and install it in the CO. But, if desired, you can make this element yourself.
In this case, the optimal dimensions of the product can be calculated using one of two options that are used most often.

The calculation of the hydraulic needle can be performed using the three-diameter method or using the alternating pipe method.

The only size that should be calculated when choosing a hydraulic separator is the diameter of the hydraulic arrow or supply pipes.

The dependence of the diameter of the hydraulic arrow on the volume of the maximum possible coolant flow in the system is determined by the formula:

D=3*d=18.8*√G/W

D – hydraulic needle diameter (mm);
d – diameter of supply pipes (mm);
G – maximum possible coolant flow through the hydraulic valve (m3/hour);
W – speed (max) of coolant movement through the cross section of the hydraulic arrow (m/sec)

The anuloid is selected taking into account the maximum technically possible amount of coolant flow in the system (cubic meters per hour) and the minimum speed of coolant movement in the supply pipes or in the hydraulic valve itself.

The Hydroarrow drawing is quite simple.

If you have a welding machine and have welding experience, then welding a hydraulic arrow yourself is quite simple. But, there are many pitfalls.

The Hydroarrow drawing can be found on the Internet, but they are all different, there is not one template. All hydraulic gun drawings are different. Everyone sees the structure of Hydrostrelka in their own way, but there is one rule that everyone follows.

A hydraulic arrow is a metal container (i.e., a profile or round pipe) to which the connection pipes to the boiler (supply and return) and the consumer pipes (supply and return) are welded.

Also optionally there may be pipes for an automatic air vent (or safety group) at 1/2" in the upper part of the hydraulic arrow.

At the bottom there is a 1/2" pipe for a tap to drain sludge and dirt.

There may also be a 1/2" pipe somewhere to feed water into the system.

The basic rule that must be followed is the rule of 3 diameters. Those. the diameter of the hydraulic arrow should be equal to 3 diameters of the pipes. So that the hydraulic gun carries the main functions that are intended for it:

Purpose of the hydraulic gun:

1. Separates sludge from the system.

2. Removes gases from the system.

3. Equalizes hydraulic differences in the system.

4. Supplies heated water to the boiler, thereby prolonging the life of the boiler.

Some people try to save money and make a hydraulic arrow from polypropylene with their own hands. This is the opinion of amateurs who know nothing about the work and purpose of a hydraulic gun

Sectional diagram of a boiler room together with an indirect heating boiler

Heated floor connection diagram

In this article I would like to explain in a simple and accessible form the principle of operation and dwell on the advantages of using this device. First, consider the following typical diagram (Figure 1.)

If in your diagram the number of heating circuits (consumer pumps) is not as large as in Figure 1, do not rush to close the page; in schemes with floor-standing boilers made of cast iron heat exchangers, the hydraulic arrow can perform an important function - to protect the heat exchanger from “thermal shock”.

For simplicity, the diagram does not show taps, filters, expansion tanks and other elements.

This diagram shows an example of two BAXI SLIM series boilers working together.

The system has:

• unregulated heating zone without its own pump (zone 1);
• high temperature heating zone (zone 2) with its own pump, controlled by a zone room thermostat (KT2);
• low-temperature zone (zone 3 - “warm floors”), regulated using a water temperature sensor.
• a hot water boiler connected as one of the zones of the heating system. The water temperature in the boiler is controlled using the boiler thermostat by turning on the boiler loading pump.

In traditional hydraulic circuits used in heating, all circuits are connected to a common manifold.

Selecting the right pumps for such a system is not an easy task. In particular, the total pressure created by the main boiler pumps (KN1 and KN2) must exceed the total vacuum delta P created by the zone pumps (H2, N3, N4...). Increased water velocity can increase system noise.

The use of such a simple element as a hydraulic separator will help to avoid all of the above problems and ensure stable operation of the system. Sometimes it is also called a hydraulic needle, hydraulic needle. And the previously discussed scheme turns into the following (Figure 2).

The principle of operation of the hydraulic arrow

The function of the hydraulic separator, as its name suggests, is to separate the primary (boiler) circuit from the secondary (heating) circuit. When using a hydraulic arrow, the pressure delta P between the supply and return manifolds is close to zero. The delta pressure P is determined by the hydraulic resistance of the separator, which is insignificant. In addition, this value is a constant value, independent of the number of simultaneously operating pumps in the secondary circuit.

Practical experience shows that the application is strongly recommended if, without a separator, the pressure difference between the collectors delta P > 0.4 meters of water column.

In addition, one of the most important functions of the hydraulic switch is to protect the cast iron heat exchanger of the boiler from thermal shock. When the boiler is turned on for the first time, the heat exchanger can heat up to a high temperature in a very short period of time, while even in the shortest heating loop the coolant does not yet have time to heat up to a similar temperature. Therefore, from the return pipeline of the heating system (for example, from the return manifold, Figure 1), the “cold” coolant enters the hot heat exchanger, which leads to its premature destruction and failure of the boiler.

The use of a hydraulic arrow makes it possible to reduce the heating circuit of the boiler and ensure the temperature difference in the supply and return pipelines does not exceed 45 degrees C.

Inside the hydraulic separator, mixing of incoming and return water can occur and it can operate in three modes.

In practice, the hydraulics of the circuit never correspond to the calculated parameters, and the use of a hydraulic separator eliminates many of the shortcomings.

Dimensions and calculation of the hydraulic boom

When making a hydraulic separator yourself, two methods are usually used to determine the optimal dimensions - the method of three diameters (Figure 6) and the method of alternating pipes (Figure 7).

The only size that needs to be determined when selecting a separator is the diameter of the separator (or the diameter of the supply pipes). The hydraulic separator is selected based on the maximum possible water flow in the system (cubic m/hour) and ensuring the minimum water speed in the separator and in the supply pipes. The recommended maximum speed of water movement through the cross-section of the hydraulic separator is approximately 0.2 m/sec.

Mathematical notation used:

• D – diameter of the hydraulic separator, mm;
• d – diameter of supply pipes, mm;
• G – maximum water flow through the separator, cubic meters. m/hour;
• w – maximum speed of water movement through the cross-section of the hydraulic separator, m/sec (approximate value is approximately 0.2 m/sec);
• с – heat capacity of the coolant, in this example – heat capacity of water (constant);
• P – maximum power of installed boiler equipment, kW;
• ?T is the specified temperature difference between the supply and return of the heating system, °C (assumed to be approximately 10°C).

Omitting simple mathematical calculations, we obtain the following formulas:

1) Dependence of the diameter of the hydraulic separator on the maximum water flow in the system.

Example. According to the diagram in Figure 2, after selecting the pumps, the following values ​​were obtained for maximum modes. In the boiler circuit, the water flow through each of the boilers was 3.2 cubic meters. m/hour. The total water consumption in the boiler circuit is:

3.2+3.2=6.4 cubic meters m/hour.

In the heating circuit we have:
- first zone of the heating system – 1.9 cubic meters. m/hour;
- second zone of the heating system – 1.8 cubic meters. m/hour;
- low temperature zone – 1.4 cubic meters. m/hour;
- DHW boiler – 2.3 cubic meters. m/hour.
The total water flow through the heating circuit in peak mode is:

1.9+1.8+1.4+2.3=7.6 cubic meters m/hour.

The peak water flow in the heating circuit is higher than the water flow in the boiler circuit, therefore the size of the hydraulic separator is determined by the flow in the heating circuit.

The approximate diameter of the separator was 116 mm.

2) Dependence of the diameter of the hydraulic separator on the maximum power of the installed boiler equipment.

If the pumps have not yet been selected, then you can roughly estimate the size of the hydraulic separator based on the maximum power of the installed boiler equipment, setting the temperature difference between the supply and return of the heating system to approximately 10°C.

Example. According to the diagram in Figure 2, two boilers will be used with a maximum power of each - 49 kW.

The approximate diameter of the separator was 121 mm.

The main advantages of using hydraulic separators

1. The selection of pumps is greatly simplified.
2. The operating mode and durability of boiler equipment is improved.
3. Protection of cast iron heat exchanger from thermal shock.
4. Hydraulic stability of the system, no imbalance.
5. If a typical wall-mounted double-circuit boiler operates on a large heating system, then the built-in pump may not be enough. The ideal option is to use a hydraulic separator and small pumps for each zone.
6. Commercially available commercially available separators can be used as effective removers of sludge and air from the system.

Why is the coolant temperature after the arrow (hydraulic separator) less than at the inlet?

This is the most frequently asked question from people who have a hydraulic separator installed in their boiler room. This mode of operation of the hydraulic switch is described in Figure 4. The main reason is that the coolant flow rate of the boiler circuit is less than the flow rate of the heating circuits. If the temperature difference is small, you don’t have to think about this problem; if the difference is more than 10 degrees, then you need to look at whether the pumps are selected correctly, or try to adjust the pump flow rates using the speed switches (the pumps themselves).

Separators are classified according to a number of parameters:

• Form- round, square.
• Number of circuits- four, six or eight inputs/outputs.
• Tube placement— along one axis/alternating.
• Installation- vertical or horizontal. The first option removes sludge and excess air from the coolant. The second scheme is used when additional filters are available.

Purpose

Hydraulic separator - additional unit that maintains the integrity of the heat exchanger from water hammer. The procedures for initial start-up, technical inspection, and boiler maintenance are accompanied by turning off the circulation pump, contributing to the formation of air pockets.

Arrangement of hydraulic separator — mandatory requirement when installing cast iron heat exchangers, since the temperature difference between the fluid at the outlet and inlet destroys the metal. The hydraulic arrow equalizes the pressure when there is a discrepancy between the flow rate in the main circuit and the total indicators of the consumer pipes.

Cleaning the coolant from rust and scale, extends the service life of moving and rubbing elements highways. For example, pumping equipment, shut-off valves, meters, temperature sensors. Prevents damage to the heating main during automatic blocking of the hot water supply and the “warm floor” system.

Principle of operation

When the system is first started, cold liquid, driven by the pump, circulates in the pipes and enters the hydraulic valve.

The hot coolant rises up, the cold coolant falls down to the boiler for further heating. Hydroarrow mixes cold and hot liquid flow naturally, collecting excess air and harmful deposits.

How to do it yourself: preparing tools and materials

Self-installation of a hydraulic arrow requires the use of:

• welding machine;
• hammer;
• Bulgarians;
• collector(a profile pipe is enough 80x80 with wall 3 mm);
• two square washers at the ends;
• two threaded elements for air release and drain valve;
• two boiler pipes with thread diameter 25 mm;
• 6 threaded parts 20 mm each for consumers ( 2 for heating, 2 for underfloor heating, 2 for indirect heating);
• pressure gauge;
• cranes;
• bimetallic crowns 25 and 29 diameter, drills 8.5 mm;
• welding electrodes (3 mm);
• primers, hammer paints.

Attention! Necessarily check the quality of the connecting parts. By installing crooked threads, taps and pumps will be damaged.

Preliminary calculations

To create drawings of hydraulic guns it is necessary to correctly determine the diameter of the pipe.

Photo 1. Metal hydraulic arrow installed in the heating system. Before installation, it is necessary to calculate the diameter of the pipes.

Calculations are carried out according to the formula: D=49*√W: Δt, Where:

W— power of boiler equipment.

Δt- temperature difference.

The length of the collector must correspond to six diameters, and the distance between the tubes is equal to 2-3 Ø. Using the data obtained, diagrams of the device assembly are drawn.

Manufacturing sequence, diagram

In a pre-prepared collector, holes are burned with an electrode, according to the markings. For 3 consumers use a profile pipe length 900 mm. A chamfer is made on the end surface of the bends approximately 1 mm. Mark the location of the collector pipes: on one side 3 feeds, 3 returns. Retreat along 50 mm from the edge of the “cold” and “hot” sides, move away 150 mm each for 3 pipe inlets.

On the opposite wall of the pipe, a hole is drilled for the supply circuit (opposite the middle outlet for consumers). From this hole measure 250 mm, drill an additional gap for the return line. The resulting design provides for placement 6 pipe entries consumers on the one hand, 2 holes for boiler contours from the opposite.

To create the initial holes, use a step drill. Achieve the required diameter for the thread entry ¾ a crown will help 20 mm. Additional nozzle (diameter 29 mm) create inch holes for the boiler circuit.

Photo 2. Diagram of a hydraulic switch for the heating system. The pipes into which the hot water circuit is connected are indicated in red, and the cold ones in blue.

Square washers serve as plugs. Steel couplings are welded to the plates. The ends are cleaned, bevels are made on the edges, and they are secured to the separator with a welding machine. The first seam is formed, cleaned, and additional lining is carried out by welding.

Threads for the boiler circuit and consumer pipes are welded onto the cleaned hydraulic needle. Having screwed on the cast iron plugs, prepare the device for testing. Pumping equipment that pumps up water is connected. Control the working pressure ( 2 atmospheres) through the drain valve fitting. All that remains is to prepare the hydraulic arrow for painting, having first protected the threads from the finishing material.

Install the device vertically, horizontally, at an angle. The air valve is placed at the top, the drain valve is at the bottom. Complex structures are equipped with horizontal partitions. A sludge collector and a magnetic catcher are placed at the bottom of the housing. Aeration occurs at the top.

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Boiler connection

The hydraulic distributor is connected to the boiler through supply and return pipes.

Hot water rises through the top tube and is divided between consumer circuits. The cooled fluid flows back to the lower hydraulic distributor tube.

Using a combless system, the number of tie-ins into the hydraulic arrow will increase. The pipe connecting the first boiler circuit to the separator is distributed in height.

Fulfilling the condition helps improve the quality of liquid selection by secondary outlets.

Collector functions

The collector is installed in a network using more than 3 radiators. Tubes for draining water to consumers are connected to the comb. Falling ones are at the top, return ones are at the bottom. Hot water from the boiler moves through the upper pipe, cold water through the lower circuit. The heat exchanger is located on the side, on the reverse side of the hydraulic arrow. The scheme provides presence of balancing valves between the supply/return manifold. Control valves increase the flow rate and pressure on circuits farthest from the separator.

Installation of shut-off valves

Receiving a fast flow of coolant, the hydraulic arrow slows down the movement of water. The air released in the liquid accumulates at the top where it is installed air vent.

The shut-off valve of the device allows you to replace the automation in an emergency, maintaining the operating condition of the heating network.

An alternative to automatic air vents will be Mayevsky crane, requiring periodic unscrewing to remove mechanical deposits.

Do-it-yourself installation of a polypropylene hydraulic arrow

Having decided to create a polypropylene separator yourself, all you need to do is prepare a hollow round pipe equipped with pipes for connecting the heating network. The supply circuits are usually located at the top, the return circuits at the bottom. The tees are connected to each other by pipe sections, and the ends are closed with plugs. The work is carried out using a welding machine with nozzles.

Connecting a wall-mounted boiler to maximum power 40 kW, it is preferable to use a ring collector for 2-4 circuits. The collector and hydraulic switch operate in one housing, devoid of internal partitions. The coolant constantly circulates through the boiler and collector. Heat is removed from the plastic comb by a pumping group. The simplified design of the PVC buffer will take up minimal space and costs.

Photo 3. Hydraulic arrow made of polypropylene. A hot coolant circuit is connected to the upper part of the structure. in the bottom - with cold.

Pros and cons of polypropylene products

Polypropylene separators will provide Main advantages systems:

• Smooth surface material will reduce the coolant resistance, reducing heat losses of the boiler.
• Polypropylene convenient to paint outside with heat-resistant paint.
• The cost of the plastic structure is cheaper analogues.
• Plastic products prevent the formation of corrosion.
• Work effectively with boilers with power up to 35 kW.
• Adjust pressure in system.
• Automatically distribute thermal flows in the required direction.
• Smooths out water hammer.
• Increases boiler efficiency, fuel economy.

Flaws polypropylene separators:

• Inability to install hydraulic guns in a system with a solid fuel boiler. Polypropylene is subject to rapid wear at high pressure and temperature.
• Installation of the structure uses additional equipment(welding machine for polypropylene), couplings, bends, taps.
• Hydraulic needle diameter must correspond to the three circumferences of the pipes contours ( 60—90, 120 mm). Pipes of the required sizes are rare and expensive.

Important! Solid fuel boilers often heat water up to 90-95 °C. Polypropylene can withstand temperature loads, but in an emergency (when there is a power outage), the supply coolant warms up up to 130 °C.

Useful video

Watch the video that explains the design and operating principles of the hydraulic gun.

Hydraulic separators are often equipped with pressure gauges and temperature sensors, necessary for complex heating systems. When planning heating with one or two radiators, many craftsmen neglect installing automation.