Product range & technical specifications
Brass / Nickel-plated brass (Type MY100 / MY101)
- Body and cover in brass or nickel-plated brass
- Screen insert in stainless steel 1.4301
- Connection to ISO 228 (G thread)
- Mesh sizes: 50 µm, 300 µm, 500 µm to 800 µm
- Seals: NBR | Nominal pressure: 20 bar | Temp.: −20 °C to +110 °C
- Sizes: ¼", 3/8", ½", ¾", 1", 1¼", 1½", 2", 2½", 3", 4"
Stainless steel (1.4408 / CF8M)
- Body and cover in stainless steel 1.4408
- Screen insert in stainless steel SS316 | Seals: PTFE
- Connection to ISO 7-1 (EN 10226-1), F-F
- Nominal pressure: 40 bar | Temp.: −30 °C to +240 °C
- Sizes: ¾" to 2"
All screw-on filters are available for immediate shipment to Germany, Austria, Switzerland, and all European countries. View the full range in our strainer overview.
Applications: Where are screwed strainers used?
Heating systems: Strainers for heating installations protect circulation pumps, thermostatic valves and heat exchangers from rust debris and sludge. In older steel-pipe systems, fitting a strainer upstream of the pump is strongly recommended.
Drinking water lines: Nickel-plated brass and stainless steel strainers meet hygiene requirements in accordance with DVGW standards. The drinking water strainer prevents particles from the house installation from damaging taps or pressure-reducing valves.
Industrial pipework: In cooling water circuits, compressor systems and building services engineering, female-thread stainless steel strainers with PTFE seals provide reliable filtration even at elevated pressures and temperatures.
Sanitary & building services: Compact brass screwed strainers fit into tight installation shafts and integrate quickly into existing pipelines. We also recommend our female-thread check valves.
Why choose screwed strainers from Fergo?
Fergo is the specialist valve supplier of choice for trade professionals, plant engineers and industrial customers across Germany, Austria and Switzerland.
- Wide range: From ¼ inch to 4 inch, brass or stainless steel, mesh sizes from 50 µm to 800 µm.
- Certified quality: All products conform to ISO 228 and ISO 7-1 (EN 10226-1). Stainless steel versions are AD2000-certified.
- Fast availability: Most items in stock – express dispatch to DE, UK, AT, CH & EU.
- Expert advice: Our team assists with material selection and mesh size: +49 (0) 21 31 / 15 39 28-0
For thread standard references, see ISO – International Organization for Standardization.
Frequently asked questions about the Y-form Strainer
Strainer screens reliably protect your systems from contamination without impairing flow. This significantly reduces downtime or interruptions in your operations. Thanks to a wide variety of designs, they can be optimally adapted to the pipeline and medium. At Fergo, you can even get custom-made strainer screens that are manufactured exactly to your specifications. Despite their high performance, they remain as compact as possible – especially for smaller nominal diameters with sleeves. The screen can be replaced and cleaned in just a few simple steps, making maintenance particularly efficient. Manufactured from robust, high-quality materials, the fittings impress with their long service life. Compared to alternative filter systems, dirt traps are also extremely cost-efficient and, in most cases, just as effective.
That depends entirely on the desired application. The mesh size of the screen ultimately determines how precisely the filtration is carried out. This applies to your stainless steel strainer as well as to other materials. In other words, which particles of what size are reliably captured while minimising the impact on the flow of the medium. We therefore offer you a wide range to choose from, so you are sure to find something suitable. Our range extends from mesh sizes of 0.25 mm to 3.1 mm. This allows you to tailor the degree of filtration precisely to the respective process situation. If you still need to define your applications, please contact us. We will be happy to help.
Depending on the connection, there are various things you need to bear in mind when installing. If you are unsure, it is best to hire a professional. This is because industrial dirt traps can only do their job reliably if they are installed as intended by the manufacturer. If in doubt, please check with our support team before ordering to clarify all the details. Additional protective measures must be taken for aggressive media or those associated with high pressures and temperatures. Please always err on the side of caution. In principle, however, flange strainers are attached to the flanges of the pipes, while the socket version fits into the internal thread. With the latter, you should therefore ensure that the thread is screwed in cleanly and do not forget the seal. It is often necessary to hold the pipe in place until the fitting is secure. A connection via the flanges, on the other hand, requires that you first align them flush and tension-free. Then tighten the screws, as always, gradually and crosswise. After initial commissioning, ideally check again and retighten if necessary. Finished. If you need a valve to shut off the pipes in advance so that no medium can escape, take a look at our extended range.
Firstly, you must ensure that the strainer is facing downwards and, secondly, that it is installed in the correct direction. This is the only way to ensure that a Y strainer can function optimally in a heating system, steam system, drinking water system or other applications. The direction in which the medium should flow can be easily identified by the arrow prominently placed on the outside of the housing. Apart from horizontal alignment on the pipe, some products can also be installed vertically in the system. However, this is usually only possible in cases where the flow is downwards. So before you buy your strainer, check the enclosed data sheet. Here you will find all the technical details. Fergo provides practical 3D models for download so that you are well prepared.
Order your screwed strainer now
Protect your system from failures and premature wear with Fergo's robust screwed strainers. Select your required nominal size, material and mesh size directly in our shop. Express delivery to all the European countries included. Questions? Request a quote or call us: +49 (0) 21 31 / 15 39 28-0.





