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Honeywell FK06-5/4AA is a water filter with a backwashing mesh filter and a built-in pressure reducer. It stops mechanical impurities (including rust and sand), while still supplying filtered water during backwashing. The set includes a Prematlak pressure gauge 0-10 bar (external thread 1/4"). Connection 5/4".
Honeywell FK06 5/4" is an advanced water filter with a filter mesh rinsing function, a built-in pressure reducer, and a pressure gauge. It is a practical installation component responsible for the mechanical treatment of water and protecting fittings against contaminants such as rust, sand, or hemp fibers. It works well as part of a domestic or utility water filtration system, especially where space saving, convenient operation, and pressure stabilization matter.
The FK06-5/4AA model filters water continuously, and during rinsing it still supplies filtered water. The built-in regulator helps protect the installation from the effects of excessively high pressure and can also support more economical water consumption. The 5/4" connection and the included Prematlak 0-10 bar pressure gauge make this set ready for operation in extensive water installations and as a complement to systems where effective water treatment is important.

FK06 belongs to the group of filters with filter mesh rinsing. This means that the device not only retains mechanical contaminants, but also allows them to be removed conveniently without interrupting the standard operation of the installation. This solution is especially valued in places where uninterrupted water supply and simple handling are important.
The filter effectively captures contaminants that settle on the filter mesh, such as rust, sand, and hemp fibers. Contaminants collected at the bottom of the housing are discharged outside after opening the ball valve located in the lower part of the filter.
In everyday operation, the filter continuously retains solid particles present in the water flowing into the installation. Thanks to the design with a rinsing function, there is no need for complicated disassembly during routine removal of accumulated deposits.
After opening the ball valve in the lower part of the housing, contaminants collected at the bottom are flushed out of the filter. An important advantage of this solution is that filtered water is supplied even during rinsing, which increases user convenience.
The integrated pressure regulator protects the installation from the effects of excessively high pressure. This is important both for the durability of fittings and for more stable operation of devices connected to the water installation. An additional benefit is the possibility of reducing excessive water consumption.
The regulator balances inlet pressure without affecting outlet pressure, supporting predictable system operation. The pressure setting is visible directly on the adjustment knob, making parameter adjustment convenient and clear.
Important installation information: the filter must be installed in a horizontal position, with the bowl facing downward. This installation method is important for the proper operation of the filtration system and the rinsing function.
The compact size of the device allows the filter to be used where installation space is limited. It is a practical solution for installation entry points, technical cabinets, and other places where compact installation is highly important.
The transparent, impact-resistant housing makes it possible to quickly assess the contamination level without dismantling the system. In addition, a replaceable filter insert and filter bowl have been used, which facilitates servicing and maintaining the device's efficiency for a long time.
The adjustment spring has been installed without contact with water, which supports the durability of the mechanism. The replaceable valve insert is made of high-quality materials, making the device suitable for regular use.
Honeywell FK06-5/4AA will perform well wherever simultaneous mechanical filtration and reduction of water pressure are needed. It is a good choice for protecting the water installation, fittings, valves, taps, and devices using utility water.
The filter does not replace solutions such as a reverse osmosis filter, osmotic filter, reverse osmosis, or a complete reverse osmosis system, because it is responsible for the initial retention of mechanical contaminants and pressure stabilization. However, it can be an important element of water preparation in more advanced systems where an additional water filtration system is also in operation.
| Model | Honeywell FK06-5/4AA |
|---|---|
| Device type | Water filter with filter mesh rinsing, pressure reducer, and pressure gauge |
| Connection diameter | 5/4" |
| Connection type | Male thread |
| Pressure gauge | Prematlak |
| Pressure gauge connection | 1/4" male thread |
| Pressure gauge operating range | 0-10 bar |
| Body material | Dezincification-resistant brass |
| Spring bracket material | Synthetic material |
| Max. medium temperature | 40 °C |
| Static pressure | PN16 |
| Pressure setting range | 1.5-6 bar |
| Setting scale | Yes |
| Balanced seat | Yes |
| Installation position | Horizontal, with the bowl facing downward |
The device is used for mechanical water filtration and reducing pressure in the installation. It retains contaminants such as rust, sand, and hemp fibers, while also helping protect the installation from the effects of excessively high pressure.
The filter retains mechanical contaminants present in the water, including rust, sand, and hemp fibers. Thanks to this, it supports the protection of fittings and elements of the water installation.
No. One of the important features of the FK06 model is that filtered water is supplied even during rinsing of the filter mesh.
Contaminants collected at the bottom of the housing are discharged outside after opening the ball valve located in the lower part of the filter. This solution simplifies ongoing operation.
The pressure setting range is from 1.5 to 6 bar. The setting is visible directly on the adjustment knob, which makes it easier to control operating parameters.
The filter should be installed in a horizontal position, with the bowl facing downward. This installation method is required for proper operation of the device.
Yes. The set includes a Prematlak pressure gauge with a 1/4" male thread and an operating range of 0-10 bar.
Yes. Due to its compact size, the filter can be used where the available installation space is limited.
No. This is a mechanical filter with a pressure reducer, designed to retain solid contaminants and stabilize pressure. It does not replace devices such as a reverse osmosis filter or reverse osmosis system, but it can be an important protective element before them.
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Honeywell FK06-5/4AA is a water filter with a backwashing mesh filter and a built-in pressure reducer. It stops mechanical impurities (including rust and sand), while still supplying filtered water during backwashing. The set includes a Prematlak pressure gauge 0-10 bar (external thread 1/4"). Connection 5/4".