Valves, Fittings & Expansion Joints

WEY Valves and MATICA Valves: Supply From the Official Distributor

A flow line is only as reliable as its weakest element. One badly specified valve turns into product loss, unplanned downtime, wasted energy and a safety risk. Linder is the official authorised distributor for the Swiss WEY valve and MATICA valve ranges in Türkiye, and specifies valves from process data rather than from a catalogue page.

Being an official distributor means three concrete things: genuine product, the manufacturer's complete technical documentation and warranty, and engineering support with a direct line to the factory during selection. Buy through an intermediate channel and all three become uncertain.

Five Parameters That Decide the Selection

• Nature of the medium: clean liquid, steam, condensate, abrasive slurry, powder or aggressive chemical — this drives body and seat material.
• Pressure and temperature: not only the operating figure, but the peaks during commissioning and upset conditions.
• Duty: on/off, modulating control or safety? Butterfly valves excel at control; knife gate valves excel on solids-laden lines.
• Sealing class: where environmental or hygienic requirements apply, fully external sealing such as a bellows seal becomes necessary.
• Maintenance reality: whether the line can be stopped, spare-part availability and the competence of the maintenance team.

Categories and Typical Applications

WEY Knife Gate Valves

Engineered for solids-laden media — pulp, waste water, mining slurry, grain and powders. The blade-shaped gate cuts through accumulated material as it closes. The WEY valve VN, DB, MG, MH and HSI series cover different pressure and sealing requirements.

Butterfly Valves — WEY and MATICA

Compact and light, they are the economical answer at larger diameters. The range runs from elastomer-seated types to double and triple offset designs; the MATICA BV200/BV600/BV700 and WEY TF/TL/TW series sit in this category.

MATICA Steam Traps

The invisible cost line of any steam system. They discharge condensate without letting live steam escape; a poorly selected trap is a measurable loss on the annual fuel bill. The MATICA ST range covers thermostatic, thermodynamic, inverted bucket and float operating principles.

Pressure Reducing and Check Valves

Pressure reducing valves hold a constant downstream pressure regardless of inlet fluctuation; check valves prevent reverse flow and protect pumps and compressors. Both are small components that become expensive the moment they fail.

Expansion Joints and WEY Water Control Gates

Expansion joints absorb vibration, thermal growth and installation misalignment, protecting the equipment they connect. Water control gates manage large-section flow in treatment plants and water structures; WEY gates are built for water columns up to 15 m and widths from 200 to 4,000 mm.

The Linder Difference: More Than a Catalogue

Selling the product is the easy part. As the official authorised distributor for WEY valves and MATICA valves, Linder takes on everything from specification to commissioning:

• Official distributor supply — genuine products, full technical documentation, manufacturer warranty.
• Engineering support — type and material selection based on medium, pressure, temperature and movement parameters.
• Local stock and fast access — in-country availability that shortens lead times on critical spares.
• After-sales service — commissioning, maintenance planning and continuity of spare parts.

Contact our engineering department to specify the right valve for your application: share your medium and operating conditions, and we will recommend the series and material combination that fits.