Filters

Filters retain solid debris carried by the flow and protect pumps, meters, heat exchangers and pipeline valves against sand, rust, scale and installation residue. They are used in water supply, heating, district heating and compatible industrial process lines. Correct selection provides effective equipment protection without introducing unnecessary pressure loss.

Main filter types

A mesh Y-strainer has a screen chamber installed at an angle to the main flow path. The fluid passes through the screen while solid particles accumulate near the removable service cover. This is a coarse mechanical filtration device; it does not remove dissolved contaminants or replace a fine water-treatment system.

Threaded strainers are compact solutions for smaller pipe sizes and installations where a screwed connection is specified. Flanged strainers are selected for larger lines or projects designed around detachable flange joints. Service access and screen-removal clearance should be considered together with the connection type.

Materials and construction options

Typical body materials include brass, cast iron, carbon steel and stainless steel. Brass is widely used for threaded water and heating installations, while cast-iron bodies are common in flanged utility systems. Steel and stainless-steel designs are considered for suitable industrial duties after verifying fluid compatibility and operating conditions.

The filtering element is a metal screen, frequently made of stainless steel. A finer opening captures smaller particles but fouls faster and creates a higher pressure drop. A serviceable design should allow the screen to be removed, inspected and cleaned without dismantling adjacent pipework.

Filter applications

Pipeline strainers are installed at water inlets and upstream of pumps, meters, heat exchangers, control valves and other equipment sensitive to debris. In heating systems, they intercept scale, rust and installation residue carried by the heat-transfer fluid. In water networks, they provide preliminary protection against sand and suspended solids. Suitability for a particular liquid or steam duty must be confirmed from the manufacturer’s documentation.

How to select the right filter

Start with the fluid, operating temperature and pressure, then match the line DN, required PN rating and connection type. Check flow capacity, expected pressure loss, body and seal materials, screen aperture and available maintenance space. The opening size should reflect the tolerance of the protected equipment rather than simply selecting the finest available mesh.

Install the unit according to the flow arrow on the body. On a typical horizontal line, the Y-strainer chamber is directed downward; vertical installation is acceptable only when permitted for the specific design and flow direction. Isolate and depressurise the section before opening the cover, then verify sealing after reassembly.

Why order from PIPELINE SYSTEMS OF UKRAINE

Through pipelinesystems.com.ua, B2B and private customers can request filter selection against a project specification. The team can compare body material, screen design, connection type and service conditions and assist with related pipeline components. Wholesale, retail, industrial and installation-company enquiries can be handled with delivery across Ukraine. Price, availability, manufacturer and supporting documents should be confirmed for the selected item.

Popular sizes

Common selection references; the available range depends on the model and manufacturer:

• threaded units: DN 15, 20, 25, 32, 40 and 50;
• flanged units: DN 50, 65, 80, 100, 125, 150 and 200;
• PN 16 is a common option, but the required rating must match the system specification.

Send your operating conditions to confirm the price and availability of a suitable pipeline strainer. Request assistance with body material, screen aperture, connection type and order configuration.

FAQ

What is the difference between a pipeline filter and a Y-strainer?

For coarse mechanical protection, the term “pipeline filter” often refers to a screen-type strainer. A Y-strainer is a specific design with an angled screen chamber and removable service cover.

How should the screen aperture be selected?

Base it on the largest particle size acceptable to the downstream equipment and the expected contamination load. An unnecessarily fine screen can foul rapidly and create excessive pressure loss.

When is a flanged strainer preferable to a threaded unit?

A flanged unit is generally selected when the project already specifies flange connections or when easier removal from a larger pipeline is required. The final decision must also consider pressure, temperature, materials and installation space.

What indicates that the screen needs cleaning?

A rising differential pressure, reduced flow or deteriorating downstream equipment performance can indicate fouling. Inspection intervals should be based on actual system conditions rather than a universal schedule.

What information is required for an accurate quotation?

Provide the fluid, operating temperature and pressure, pipe size, connection type, required screen aperture and expected flow rate. Project drawings or an existing equipment reference can help confirm installation dimensions and material compatibility.