Circulation pumps and installation accessories are the two pillars of every boiler room. The pump forces the circulation of the medium, and the accessories determine whether this circulation is stable, safe and adjustable. At our company Dambat, we design and supply both under the IBO and brand names IPRO, Therefore, in this study we have collected practical differences between series, marking conventions and selection rules elements of installation equipmentthat installers ask us about most often.
The text is addressed to installers, service technicians and designers. Instead of generalities, we show what really distinguishes a pump with a differential pressure regulator from a three-speed pump, when the return protection group replaces a set of individual fittings and why some heating installation equipment - for example, safety valves or expansion vessels - are selected before the pump, not after it. Our reference point is a closed central heating installation in a single-family building, but most of the principles apply to larger heating installations, multi-zone nodes and industrial circuits.
The heating system equipment is not an addition to the pump - it is a condition for its correct operation. In our diagrams, the elements of installation equipment are divided into three groups: hydraulic (valves, distributors, couplings), safety (safety groups, expansion vessels, thermal protection) and measurement and control (sensors, regulators, pressure indicators). This division makes it easier to complete the order and allows you to quickly check what is missing in the node.
Circulation and circulating pumps - where one role ends and another begins
In workshop practice, both concepts are used interchangeably, but in technical documentation we separate them consistently. The circulation pump works in a closed heating circuit: it overcomes the hydraulic resistance of pipelines, radiators, coils and fittings, not the lifting height. In turn circulation pump it works in an open hot water loop and is supposed to maintain the temperature in the circulation pipe so that the user does not drain water from the tap while waiting for heat.
The consequences of selection are very specific. In a closed central heating installation a standard cast iron body is enough because the water circulates in circles and is not replaced. Where he works hot water installation with a constant inflow of fresh water, a cast iron body is not the right choice - that is why we use models with a bronze or steel body for circulation, such as BETA 2 25-60/130 with bronze body, or dedicated low-power circulation pumps. The circulating hot water installation operates with low resistance, so the circulation pump is selected according to the length of the loop and the heat losses of the pipeline, not to the power of the source.
Domestic hot water: circulation pump and circulation loop
Hot utility water circulates in a loop with low resistance, so the parameters of the necessary pump are surprisingly small. Our circulation pump EPRO 15-15 PLUS consumes 3-9 W, has a lifting height of 1.2 m and a capacity of up to 10 l/min, operates in the range of 2-95 °C (TF95) with a system pressure of up to 1 MPa, has a protection class of IP44 and insulation class F. Model E-IBO PRO 15-14 has a spigot spacing of 72 mm, ½" thread, a digital panel and a programmer that allows you to set up to three independent operating ranges during the day. For simpler applications, we have EBO 15-15, and for objects with larger loops - units of higher power z groups of hot water circulation pumps
Hot water does not have to circulate 24 hours a day. A timer or thermostat on the return loop limits the pump operation to the hours of actual consumption, which in multi-family buildings is more important than the engine power itself. We wrote more about it in the guide how to effectively use hot water circulation and in the text about circulation pumps in domestic hot water systems
How to read the markings and what are the differences between our series
The 25-60/180 type designation describes three things: the connection diameter (DN25), the maximum lifting height in meters of water column (6 m) and the spacing of the connections in millimeters (180 mm). This third parameter determines the interchangeability of the pump in an existing node - when modernizing, it is worth checking it before ordering, because the difference between the /130 and /180 versions requires rebuilding the pipeline section.
| Series | Brand | Characteristics | Typical use |
|---|---|---|---|
| PANDA | IBO | Permanent magnet motor, differential pressure regulator, AUTO mode and constant speeds HS1–HS3, energy consumption display, screw fittings included | Home central heating installation, replacement of the three-speed pump |
| OVI / IVO | IBO | Compact electronics, consumption 5-45 W, panel with venting function | Single-family boiler rooms, DN25/DN32 connections |
| NOVA / NOVA MAX | IBO | Class A, EEI ≤ 0.23; NOVA MAX with DN40/DN50/DN65 flange connection and height up to 12 m | Larger heating installations, multi-zone circuits, multi-family buildings |
| MAGI 2 / MAGI H / MAGI MAX | IBO | Differential pressure regulator, 8 operating modes, panel on the top of the body, range 2–110 °C, 36 months warranty | Variable flow installations, high resistance (MAGI H - 12 m at DN25) |
| BETA 2 | IBO | EEI ≤ 0.23, 8 modes: ECO, PP1/PP2, CP1/CP2 and I/II/III; BR version with bronze body | Central heating, solar installations, domestic hot water circulation. (BR version) |
| AMG / AMG SOLAR | IBO | PWM signal support, control cable included | Cooperation with the boiler controller, solar systems |
| PWM API | IPRO | PWM frequency converter, EEI ≤ 0.23, 8 modes, range 2–110 °C | Installations controlled by an external regulator, installation in pump groups |
| IGDL | IBO | Multistage in-line pump 0.37–1.5 kW, 230 V and 400 V versions, DN40/DN50 connections | Pressure raising and circulation in high buildings, technological circuits |
| IPML / IPTL | IPRO | Glanded pumps from 0.55 kW to 18.5 kW, 230 V and 400 V, flange connections DN32–DN100 | Industrial installations, heating nodes, cooling circuits |
The names of the operating modes should be understood literally, because the actual power consumption depends on them. Proportional pressure curves (PP1/PP2) are used in installations with thermostatic valves on radiators, where the flow changes. The constant pressure curves (CP1/CP2) are suitable for underfloor heating with a manifold. We leave the constant speed modes (I/II/III) for systems with a constant resistance receiver and for diagnostics. Modern heating installations work with variable flow, so the pump at a constant speed almost always works beyond its optimal point: it either throttles the flow or makes noise on the valves. If the central heating installation was expanded in stages, before selecting the mode, it is worth counting the resistance of the longest circuit, and not just adding up the power of the radiators.
For a full overview, visit our circulation pump category and in the article about advantages of electronically controlled pumps.
Controllers, inverters and electrical equipment in the boiler room
Drivers are the element on which installers save most often - and they most often return to the topic after the first season. Ours central heating pump controller S-150 turns on the pump when the set temperature is exceeded and turns it off when it drops below the turn-off threshold, in the range of 0-99 °C, with two LED displays, a thermostat function and an anti-stop function that periodically starts the rotor after a longer downtime. This is a solution for boilers in which the pump is not controlled by the source automation.
Room controllers are a different class of devices: they respond to the air temperature in the room and usually control a heat source or zone actuators. Room controllers do not replace the pump regulator - they measure a different quantity and have a different time constant. In mixed systems, we use both: the thermostat in the room determines the demand, and the controller at the boiler protects the exchanger and the pump.
As a manufacturer of electrical equipment for pumps, we also supply SPP and SPD control cabinets (for one and two pumps), M series motor protection for the ranges from 0.37 kW to 7.5 kW and also pressure switches and others control and security equipment. They are a separate group inverters: in our offer, they regulate the operating conditions of the water pump - they have nothing to do with photovoltaic inverters, although variable frequency technology is common. We described them in more detail in the text about intelligent pumps with a frequency converter.
Installation of electrical equipment and division of competences
Installing electrical equipment in a boiler room requires a license - and it is not a formality. The elements of the electrical installation powering the pump must be selected for the starting current, line length and cable routing, and a safe electrical installation includes a residual current device, proper grounding and a separate circuit for higher-power heating devices. We start the installation of electrical equipment by checking whether the pump circuit is separated and secured with the appropriate switch. We provide them for calculations cable cross-section calculator i maximum cable length converter, and the context is explained in the article why cable length and diameter matter.
The functions of electrical equipment are divided into three groups: control (controllers, regulators, actuators), protection (thermal switches, overcurrent protection, dry-running sensors) and measurement (temperature sensors, pressure switches). A plumbing installer can install ready-made, factory-wired components, but rebuilding circuits or repairing electrical installations is the task of a properly licensed electrician. This division of competences is part of what we mean by professional installation. The installation of electrical equipment should end with a measurement report - without it, it is difficult to determine later whether the fault was caused by the device or the power supply.
It is also worth comparing the functions of electrical equipment with the documentation. Before installing electrical equipment, check: IBO instructions permissible power supply parameters, IP protection level and required distances from hot elements - these data differ between series and determine whether the device can be built into a cabinet or not.
Mixing, thermostatic and cooling valves - water temperature regulation and source protection
Mixing valves are responsible for ensuring that water at the correct temperature reaches the receiver and that sufficiently hot water returns to the boiler. Adjusting the return water temperature is not a matter of comfort, but of the durability of the exchanger: in solid fuel boilers, condensation on the cold surfaces of the exchanger leads to low-temperature corrosion and tarring.
Ours MIX TVR thermostatic mixing valves they mix cold return water with hot water from the boiler and maintain the return temperature at the valve opening temperature. What is important in design: thanks to automatic flow control at the inlet from the by-pass, they do not require an additional balancing valve. Thermostatic valves of this class are available in connection variants 25 and 32 and in several opening temperatures.
In larger systems, mixing valves are provided with three-way valves with an actuator. Ours MIX3 DN40 is a mixing and distribution valve for central heating, cooling and domestic hot water installations, controlled manually or automatically by an actuator - in our installation recommendations we indicate the IBO STER D actuator. The required supply temperature is obtained by mixing the medium from the boiler with the return medium, therefore mixing valves play a double role here: they regulate the receiver and protect the source.
At the manifold, mixing valves allow you to lower the temperature only for the floor circuit, while maintaining high parameters Power supply radiators. This is the most common reason why two different types of fittings meet in one node and why mixing valves are among those elements of installation equipment that are not worth selecting at the end of the project.
The ready node is the return protection group IBOMAT API — TSV3B thermostatic valve, pump, insulation and thermometer in one housing for installation on the return pipe of a boiler or fireplace with a water exchanger. The variants differ in the opening temperature and the maximum supported boiler power: 45 °C to 46 kW, 50 °C to 42 kW, 55 °C to 36 kW. The control range is +5 °C above the opening temperature, Power supply 230 V/50 Hz, operating temperature 5–95 °C, maximum pressure 6 bar, connections 3× GW 1", the medium can be water or a glycol solution up to 50%.
Cooling valves, ball valve with actuator and check valves
Cooling valves protect against overheating of the heat source. Ours IBV 2 it has a brass body and two thermostatic elements: after reaching the limit temperature of 97 °C, ±2 opens the drain valve and at the same time the valve that replenishes water from the network. It is intended for boilers with a maximum power of 500 kW, with post-cooling up to 100 kW in accordance with EN 303-5:2012, and cannot be mounted with the head down. We emphasize clearly - also in the product data sheet - that cooling valves do not replace the safety valve.
We use it to switch circuits MIX 2 UNI CONTROL: is a three-way ball valve with a 230 V actuator, supporting 2- and 3-point control, with manual mode and maintaining the last position in the event of a power failure. Available in DN20, DN25 and DN32, in versions with internal and external thread. Such a ball valve serves as a separation or switching valve, also in systems with a heat pump - our products are compatible with such installations, although we do not produce heat pumps themselves. Details are described in the article about IBO MIX2 zone valve.
Check valves perform two functions in a boiler room: they block gravity flow through an inactive circuit and protect the pump against reverse flow when stopped. In systems with several heat sources, check valves are a condition for repeatable operation of the automation - without them, heat "escapes" into the circuit, which should remain stationary. We have collected the types and selection in the text about check valves in the IBO offer, and it's useful too service valve DN25/DN20 making it easier to replace the pump without draining the water from the installation.
Central heating pump groups, distributors and hydraulic coupling
Pump groups are ready-made elements of installation equipment in which the order of fittings has been set at the factory. Pump groups for central heating shorten assembly and eliminate fittings sequence errors. Ours GP PRO groups are available in BO, 3D-S and 3D-T variants, and the set includes two shut-off valves with a thermometer and a half-connection, a three-way valve with a half-connection, a mixing valve actuator, a return connector and front and rear insulation. The spacing corresponds to pumps 25-60/180, so the group can be ordered with a pump API 25-60/180 or with another unit of the same spacing.
Pump groups for central heating connect with distributors on 3+2 circuits (2+1 and 4-circuit versions are also available) and with SP-S horizontal clutch. The clutch hydraulically separates the boiler circuit from the receiving circuits: the boiler pump operates in its optimal range, and the pumps in individual circuits can change the flow without disturbing the operation of the source. The limit parameters are usually 90-110 °C and about 6 bar - we always check the exact values in the documentation for a specific model. An alternative at the distributor is GP MIX T 235 mm, for which the pump is selected separately.
Expansion vessels, filters and pressure gauges - heating system equipment that protects the pump
Expansion vessels compensate for the change in the volume of the medium when heated. These are elements of installation equipment that we select before choosing a pump - because they affect the pressure in the system, and not the other way around. Without them, the pressure increases, the safety valve opens, the installation loses water and each time it is refilled, we introduce oxygen and salts into it - thus accelerating corrosion and aeration of the pump. Ours central heating expansion vessels and C.W.U. BASIC series include capacities from 8 to 100 liters, in hanging and standing versions; an example is central heating expansion vessel 12 BASIC.
It is worth sorting out the nomenclature, as it can be a source of confusion when ordering: a diaphragm expansion vessel, an expansion vessel and an expansion tank are in practice the same element of a closed heating system. An open diaphragm expansion vessel (the former vessel at the highest point of the installation) is a completely different solution and today we find it mainly in modernizations. We calculate the capacity from the volume of water in the installation, operating temperature and initial pressure - ours is used for this purpose expansion vessel capacity selection calculator. Expansion vessels with too small a capacity are one of the most common causes of cyclic water discharge through the safety valve.
We deliver safety valves in complete groups: IGB INOX 3/4" with steel body, MGB in brass version and SGB. One component includes a pressure gauge, automatic air vent, Connection expansion vessel and a safety valve, and in the INOX version also a service valve. Safety valves are selected so that the opening pressure is lower than the maximum allowable pressure of the boiler - 1.5, 2.5, 3 and 6 bar variants are available. For the SGB group, the limit data are 6 bar, 90 °C, glycol up to 50%, pressure gauge 0-10 bar and maximum diameter of the expansion tank 340 mm.
A closed central heating system requires both a vessel and a pressure protector - this is not an alternative, but a pair of elements working together. The heating system equipment in this area is selected according to the maximum operating temperature and permissible pressure of the weakest element of the system, which is usually the boiler or tank.
Filters, pressure gauges and pipe diameters
The magnetic filter captures iron particles circulating in the system, which otherwise grind hydraulic components, block actuators and settle in the impeller. Ours magnetic filter I-003 3/4" it works up to 8 bar and 90 °C, filters ≥ 500 μm at a flow rate of up to 100 l/min, and the magnet strength is 9,000 Gauss. The full range is magnetic separators and iron removers; we described the context in the article about protection of heating systems with magnetic filters and in the text why in the central heating installation? and domestic hot water filter that protects the pump.
Pressure gauges are the cheapest diagnostic tool in a boiler room and the most often overlooked one. We offer 40 mm radial pressure gauges with a 1/4" bottom connection in the ranges 0-2.5, 0-4 and 0-10 bar - as radial pressure gauge 0–4 bar; are available too 60 mm axial pressure gauges with rear connection. The principle of selecting the range is simple: the working pressure should be in the middle part of the scale, because the accuracy of the reading decreases at the ends. Two pressure gauges - before and after the filter or before and after the pump - allow you to assess resistance without disassembling the installation. More in the text about manometers and water pressure measurement.
The pipes and their diameters determine how much work is left for the pump. Too small cross-sections mean high resistance, flow noise and the pump operating on a higher curve. Pipes with an increased diameter, in turn, extend the installation's response time and increase its water capacity, which translates into larger expansion vessels. During modernization, when steel, copper and plastic pipes meet in a building, our tools will come in handy: pipe diameter converter, article DN is how many inches and a guide how to choose the right pipe diameter.
What we don't produce - and what affects the pump's operation anyway
Not all elements of the installation equipment in the boiler room come from us and we do not want to pretend otherwise. Below are the four groups that installers ask about when ordering, along with information on how they interact with our devices.
Draft regulators. In solid fuel boilers, draft regulators regulate the air supply mechanically, without electrical power. This has a consequence that is easy to forget: in the event of a power failure, the draft regulators continue to operate and the pump stops. The boiler continues to release heat into the water, which stops circulating. Therefore, in such systems we design heat removal without electricity - gravity circulation or IBV 2 cooling valves - and we do not treat the controller as a protection. Draft regulators are not included in our offer, but their presence informs us that the installation requires return protection and thermal protection. It is also worth remembering that draft regulators with incorrect settings cause temperature spikes, which, when the pump is at a constant speed, end with cyclic opening of the safety valve.
Uninterruptible power supplies. Emergency power supplies for circulation pumps are an element of safety, not convenience, in solid fuel boiler rooms. We do not produce them, but we have one important tip: our electronic pumps with a permanent magnet motor and a frequency converter should be powered by pure sinusoidal systems. Modified wave (“quasi-sine”) uninterruptible power supplies are sometimes acceptable for older three-speed pumps, but with electronics they can cause overheating and control errors. Before selecting an uninterruptible power supply, check the permissible power supply parameters of a given model in the manual and take into account the starting current, which is higher than the operating current. Uninterruptible power supplies are selected for the sum of the loads - pump, controller, actuators - and not for the nominal power of the pump itself.
Electric heaters. Electric heaters in buffers and hot water tanks. these are typical electric heating devices that we also do not produce. However, they influence the selection of pumps: electric heaters operating in the tank change the temperature distribution, and in systems with circulation they mean maintaining the temperature in the loop longer. From an electrical point of view, electric heaters with a power of several kilowatts require a separate circuit and a properly selected wire cross-section - this is another reason for the electrical installation of a boiler room to be designed together with the plumbing, and not after it. If the project includes electric heaters as a peak source, it is worth checking the selection of the vessel and safety group for the new operating temperature.
Stainless steel chimneys. Stainless steel chimneys and chimney liners are a separate industry and separate authorizations - they are not part of our offer. Only one conclusion is important for the selection of the pump: stainless steel chimneys installed when replacing the boiler usually go hand in hand with a change in the operating temperature of the installation, which changes the required flow and lifting height.
Installing Hardware - The Order that Matters
Installing equipment in a boiler room is rarely due to lack of knowledge, but more often to lack of space. Below is the order we use in our diagrams and which we stick to in the design documentation available in DWG files for projects.
- Filter before the pump. Always on the inlet, never after the impeller. We install the magnetic and mesh filter so that it is accessible for cleaning without dismantling the pump.
- Shut-off valves on both sides of the pump. Thanks to this, replacement does not mean draining the water from the entire installation - this is where the service valve comes in handy.
- Shaft horizontal, terminal box available. Circulation pumps are installed with the shaft in a horizontal position, regardless of whether the pipeline runs vertically or horizontally. The arrow on the body must correspond to the flow direction.
- Venting at the highest point. Air in the rotor means noise, loss of efficiency and dry running. The procedure is described in the guide venting the central heating pump
- Safety group and vessel on return. We install safety valves without shut-off fittings between them and the heat source - this is a condition that cannot be ignored.
- Pressure gauges in legible places. A pressure gauge hidden behind insulation does not fulfill its diagnostic function.
It is also worth planning the installation of accessories in terms of service: spacing, access to screw connections and the possibility of supporting the pipeline determine the time of subsequent replacement. A professional installation can be recognized by the fact that the pump can be replaced in a quarter of an hour, not half a day. We have collected typical symptoms of errors in the text about incorrect operation of the circulation pump, and hydraulic phenomena - in articles about water hammer i cavitation.
Step by step selection and the tools we use
The central heating installation does not require complicated calculations if we follow the order. Below is the path we follow with installers when selecting:
- Flow. We calculate it from the power of the receivers and the difference in supply and return temperatures - this is the starting point, not the boiler power.
- Resistances. We add up losses on the pipeline, fittings and receiver; ours are helpful pressure loss and efficiency tables and volumetric flow calculator.
- Operating point. We check whether it falls in the middle of the selected pump's characteristic curve - not at the edge.
- Adjustment mode. We select the curve according to the type of installation: proportional for thermostatic valves, constant for underfloor heating.
- Equipment. We complete the node: mixing valves, non-return valves, expansion vessels, pressure gauges, controllers and protection devices.
- Verification. After the first season, it is worth comparing the actual power consumption - it helps savings calculator when replacing the pump and article how to calculate the hourly power consumption of the pump.
We have collected the remaining conversion factors - pressure units, NPSH and cavitation risk, water demand - in one place, in section of converters and calculators. We provide training materials in: IBO Academy, and definitions of concepts in dictionary of hydraulic terms.
Apart from the boiler room - the rest of our offer
Our heating installations are one of several areas. Apart from these, we produce and deliver submersible pumps, surface pumps, Submersible pumps and hydrophore sets. These groups work in the raw and untreated water zone, before the treatment process - they are not water treatment devices and do not confirm its suitability for consumption. If water from its own intake is to be used for food or household purposes, the user should ensure proper treatment and quality control at the point of consumption.
They are a separate group condensate pumps, useful for condensing boilers and air conditioning, and installation accessories i accessories, incl BY-PASS KOMBI 25-3 connection valve Multiblock type for connecting softeners and filtration stations. You will find an overview of the entire offer in the brand categories IBO i IPRO.
Purchase, warranty and documentation
The high quality of the equipment is verified by documents, not passwords, which is why we make catalog cards, instructions and declarations publicly available. Brand In 2015, IBO received the silver emblem of the "Consumer Quality Leader" in the circulation and circulating pumps category, but specific data are more useful when selecting: energy class, EEI, temperature range and spigot spacing. In our understanding, high quality equipment is the repeatability of dimensions between batches and the availability of spare parts after years - and not a declaration in the catalogue.
The high quality of the equipment is only revealed during the second or third inspection: then you can see whether the screw connections can be unscrewed, whether the seals have retained their elasticity and whether you can still buy a cartridge or impeller for the device. That's why we maintain separate parts catalogs for each brand.
We sell our devices through a network of partners - the list can be found on the website partner stores and wholesalers, and the ordering rules are described in the article how to buy an IBO pump. We provide warranty and post-warranty service in Adamów 50 near Grodzisk Mazowiecki - details on the website service, in the text about complaints and spare parts and in the catalogue IBO spare parts. If you have any technical questions, please contact us contact — we help you select a pump and accessories for a specific system, based on parameters, not guesswork.
FAQ - circulation pumps and installation accessories
What is the difference between a circulating pump and a circulating pump?
The circulation pump forces the medium to circulate in a closed heating circuit and only overcomes hydraulic resistance. The circulation pump works in the domestic hot water loop, where the water is exchanged, which is why it uses bronze or steel bodies, not cast iron. The parameters of circulation pumps are much smaller - on the order of a few watts and about a meter of lifting height.
What does the 25-60/180 symbol on the pump body mean?
The first number is the connection diameter (DN25), the second is the maximum lifting height in meters of water column (6 m), and the third is the spacing of the connections in millimeters (180 mm). When replacing, checking the spacing is crucial because the /130 and /180 versions are not interchangeable without rebuilding the pipeline section.
Which operating mode should you choose: proportional or constant pressure?
Proportional pressure (PP) is useful where the flow changes, i.e. in radiator installations with thermostatic heads. Constant pressure (CP) is suitable for underfloor heating with a manifold and long loops. We leave constant speed modes for diagnostics and for systems with constant resistance.
Can the pump be mounted in any position?
The motor shaft must remain horizontal - this applies to both vertical and horizontal pipelines. The terminal box should be accessible and the flow direction should be consistent with the arrow on the body. Setting the head with the box down may result in flooding of the electronics due to condensation.
Why do you need a return protection group if the boiler has a controller?
The controller responds to the measurement and requires power, and the thermostatic mixing works mechanically and immediately. The IBOMAT API Group maintains the return temperature above the condensation threshold, protecting the exchanger against low-temperature corrosion and tarring. In the 45, 50 and 55 °C variants, it supports boilers up to 46, 42 and 36 kW, respectively.
Does the cooling valve replace the safety valve?
NO. The IBV 2 dual-function valve discharges excess heat after exceeding 97 °C ±2, opening the drain and refilling water, but this is thermal protection, not pressure protection. Protection against excessive pressure increases is provided by a separate element, supplied by us in complete IGB, MGB and SGB safety groups.
How to select the capacity of an expansion vessel?
Three pieces of data are needed: the volume of water in the installation, the maximum operating temperature, the initial pressure and the valve opening pressure. The BASIC series includes capacities from 8 to 100 liters in hanging and standing versions. For calculation purposes, we provide a capacity selection calculator on our website.
Can the electronic pump work with an uninterruptible power supply?
Pumps with a permanent magnet motor and a frequency converter require a pure sinusoidal power supply. The modified waveform may cause overheating and control errors. Before purchasing, check the permissible power supply parameters in the manual and take into account the starting current and the load from the controller and actuators.
Where to install the magnetic filter and how often to clean it?
The filter is installed on the inlet to the pump, in a place that allows cleaning without dismantling the device. The I-003 model works up to 8 bar and 90 °C with a flow rate of up to 100 l/min. The frequency of cleaning depends on the condition of the installation - in older steel systems, it is worth planning the first inspection after a few weeks of operation.
What pressure gauge range should I choose for my home boiler room?
The range is selected so that the normal operating pressure falls in the middle of the scale - for a typical home installation, the ranges of 0-4 bar work, and for higher pressures 0-10 bar. The radial version has Connection lower, axial rear, which facilitates installation in tight knots.
What is the warranty and where can I find technical documentation?
The warranty period depends on the series - for example, MAGI 2 pumps are covered by a 36-month warranty, and the IBOMAT API groups are covered by a 24-month warranty, counted from the date of purchase. Instructions, CE declarations and design files are available in the downloadable materials section, and we run the service in Adamów 50 near Grodzisk Mazowiecki.
