Strainer Manufacturer in Europe

ValvesOnly Europe manufactures and supplies simplex basket strainers, duplex basket strainers, and Y strainers for removing solid particles and debris from industrial pipeline systems. Our strainers are available in multiple pressure classes, materials, and screen configurations for water treatment, chemical processing, marine, oil & gas, power generation, and general industrial applications.

What is a Strainer?

A Strainer is a mechanical filtration device installed in pipelines to remove solid particles and debris from flowing media. It protects pumps, valves, flow meters, and other equipment by preventing contaminants from entering the system. 

How Does a Strainer Work?

• Fluid enters the strainer body through the inlet connection
• Flow is directed through a perforated or wire mesh screening element fitted inside the body
• Solid particles, debris, and foreign matter larger than the mesh/perforation rating are trapped inside the screen
• Filtered fluid passes through the open area of the screen and continues to the outlet
• Trapped particles accumulate inside the basket or screen over time, increasing differential pressure across the unit
• Differential pressure is monitored using gauges or switches fitted at the inlet and outlet ports
• Once the set differential pressure is reached, the cover is opened and the basket/screen is removed for cleaning
• In duplex units, flow is transferred to the standby chamber so the online chamber can be cleaned without stopping flow
• The cleaned basket/screen is reinstalled and the cover is resealed before returning the unit to service

Types of Strainers:

Simplex Basket Strainers

Single body strainer with one removable basket in the flow path. Requires flow shutdown for basket cleaning.

Duplex Basket Strainers

Twin chamber strainer with a transfer mechanism that switches flow between baskets. Allows cleaning without stopping flow.

Y Strainers

Compact Y-shaped body with an angled screen chamber. Suited to horizontal, vertical, or inclined line installation.

Design & Construction:

• Body styles: Cast, forged, and fabricated construction
• End connections: Flanged (ASME B16.5, EN 1092-1), threaded (BSP/NPT), butt weld, socket weld, wafer
• Screen types: Perforated sheet, wire mesh, wedge wire
• Mesh/perforation range: 0.15 mm to 6 mm (custom micron ratings available on request)
• Cover arrangement: Bolted cover, bayonet lock cover, davit-assisted cover for larger sizes
• Drain/vent connections: Threaded or flanged drain and vent ports for basket flushing and air release
• Differential pressure monitoring: Optional gauge or switch connections across inlet/outlet ports

Technical Specifications:

Available in a range of sizes, pressure classes, materials, and end connections depending on project requirements. 

Materials of Construction:

• Body/Cover: Carbon steel (A216 WCB), stainless steel (A351 CF8/CF8M), duplex and super duplex steel, alloy steel (A217 WC6/WC9), bronze, cast iron, ductile iron
• Screen/Basket: Stainless steel 304/316, perforated or wire-mesh construction
• Seals/Gaskets: Graphite, PTFE, elastomer-based gaskets depending on service temperature and media
• Fasteners: Carbon steel or stainless steel studs and nuts as per applicable standard

Strainers Applications:

• Pump suction line protection
• Steam and condensate systems
• Water intake and treatment lines
• Chemical processing and dosing lines
• Marine and offshore piping systems
• Cooling water circuits
• Oil, gas, and petrochemical transfer lines
• Compressed air and utility piping

Standards & Certifications:

Manufacturing and testing are carried out in accordance with ASME, EN, API, and ISO standards. Material test certificates (EN 10204 3.1/3.2), hydrostatic test reports, and third-party inspection documentation are provided as required by the project specification.

Advantages of Strainers:

• Protects downstream instruments and rotating equipment from particulate damage
• Removable basket/screen design simplifies cleaning and inspection
• Available across a wide range of sizes, pressure classes, and materials
• Duplex configuration supports uninterrupted flow during maintenance
• Custom mesh ratings available to match specific filtration requirements

Installation & Maintenance:

Clearances need to be provided while installing strainers to facilitate the removal of baskets or screens, and, when required, strainers must be mounted in such a way that the direction of flow on the body corresponds to that of flow in the pipeline. The differential pressure across the strainer needs to be measured regularly to identify the time when the screen needs cleaning.