Y strainers protect pumps, valves and heat exchangers in pipelines from solid particles. FERGO offers the Y strainer as a flanged or threaded strainer in stainless steel 1.4408, brass, nickel-plated brass, carbon steel, grey cast iron GG25 and ductile iron GGG40.3+PFA. Nominal sizes DN8 to DN400, pressure ratings PN10 to PN40. Screen mesh from 0.05 mm to 2 mm. 120 variants in stock.
A strainer in the pipeline holds back scale, weld spatter, rust and other solids before they reach sensitive equipment. Without this protection, wear on isolating valves and control valves increases significantly. FERGO stocks compact threaded strainers for smaller lines and flanged ...
Y strainers protect pumps, valves and heat exchangers in pipelines from solid particles. FERGO offers the Y strainer as a flanged or threaded strainer in stainless steel 1.4408, brass, nickel-plated brass, carbon steel, grey cast iron GG25 and ductile iron GGG40.3+PFA. Nominal sizes DN8 to DN400, pressure ratings PN10 to PN40. Screen mesh from 0.05 mm to 2 mm. 120 variants in stock.
A strainer in the pipeline holds back scale, weld spatter, rust and other solids before they reach sensitive equipment. Without this protection, wear on isolating valves and control valves increases significantly. FERGO stocks compact threaded strainers for smaller lines and flanged strainers for larger nominal sizes. Use the product configurator above to select nominal size, connection, body material and mesh size.
What is a Y strainer?
A Y strainer is a pipeline filter with an angled branch housing. The shape gives it its name. The medium flows through the straight run and passes over a stainless steel screen in the angled branch. Particles are caught in the screen. The cleaned medium flows on. The Y design allows compact installation in both horizontal and vertical positions. Maintenance is done by opening the screen cap on the branch — without removing the main pipeline. Fergo strainers are manufactured in all common sizes to DIN EN 13547.
Stainless steel strainer – for chemicals, food and steam
The stainless steel strainer (types MY200, FP200) uses a body in 1.4408 (CF8M) and a screen in SS316. The PTFE gasket withstands temperatures from −30 °C to +240 °C. Rated pressure is 40 bar on the threaded version. Stainless steel is the first choice for aggressive media, steam lines and food or pharmaceutical applications. The smooth surface simplifies cleaning and prevents adhesion. In steam systems the strainer for steam protects upstream steam traps and control valves from scale and boiler deposits.
Flanged strainer – for larger sizes and high pressures
The flanged strainer is installed between two pipe flanges to EN 1092-1/2. Fergo stocks flanged strainers in grey cast iron GG25 (type FP110), carbon steel (type FP120) and stainless steel (type FP200) from DN15 to DN400 in pressure ratings PN10, PN16, PN25 and PN40. Face-to-face length follows EN 558-1 Series 1. Flanged connections provide maximum stability at high operating pressures. For steam and hot water systems from PN25 upward we recommend the carbon steel strainer PN16 or PN40 with graphite gasket.
Threaded strainer – compact for heating and building services
The threaded strainer with female thread to ISO 228 or ISO 7-1 suits smaller pipelines from DN8 to DN100. Fergo supplies threaded strainers in brass (type MY100), nickel-plated brass (type MY101) and stainless steel (type MY200). A strainer for heating — typically an MY100 in brass with 0.5 mm mesh — protects circulating pumps, mixing valves and heat exchangers in the heating circuit from magnetite and suspended solids. In building services it secures cold-water lines, cooling circuits and irrigation systems.
Body material, mesh size and pressure rating
The right strainer configuration depends on four parameters. The product configurator above filters on all four:
- Body material: stainless steel 1.4408 for aggressive media and steam, brass for heating and potable water, grey cast iron GG25 for standard water and oil service, ductile iron GGG40.3+PFA for corrosive chemicals
- Mesh size: 0.05 mm (finest filtration, instrument protection), 0.25–0.5 mm (standard protection for pumps and valves), 0.8–2 mm (coarse filtration in large lines)
- Pressure rating: PN10 and PN16 for water and heating, PN25 and PN40 for steam and high-pressure duty
- Connection:female thread for DN8–DN100, flanged for DN15–DN400
Use our resistance check tool to verify material compatibility with your medium.
Applications – heating, steam, chemicals and water treatment
A pipeline strainer is found in virtually every industrial plant. In heating and cooling systems the strainer for heating catches magnetite, scale and deposits in the circuit. In steam plants a strainer for steam ahead of steam traps and control valves stops boiler scale. In the chemical industry a stainless steel strainer protects sensitive metering and measuring equipment from particles. In the food industry only stainless steel strainers with a hygienic surface finish are used. In water treatment fine-mesh screens (0.05 mm) safeguard membranes and flow meters from contamination.
Strainer in stock – EU-wide delivery
Fergo stocks all 120 strainer variants for immediate dispatch. Standard shipping via DHL reaches customers across Europe within a few working days. Each strainer ships with product datasheet and declaration of conformity to the EU Pressure Equipment Directive 2014/68/EU. For special mesh sizes or connection types the Fergo team advises on bespoke configurations.
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