Check Valves

DSS-Valves_Check-Valves

Check valves are mechanical devices designed to allow fluid—whether liquid, gas, or steam—to flow in one direction while preventing reverse flow. They operate automatically, opening when the upstream pressure exceeds the downstream pressure and closing when flow reverses. This function helps protect pumps, compressors, and pipelines from potential damage caused by backflow, and it also maintains system efficiency. Common types of check valves include swing, lift, ball, and dual-plate designs, each selected based on the application’s flow rate, pressure, and media characteristics. They are widely used in industries such as oil and gas, power generation, water treatment, and chemical processing.

Manufacturers such as HY-GRADE Valves, DSS Valves, Özkan Makina, and Valvitalia supply a broad range of check valve types tailored to different industrial requirements. Adams Armaturen, for example, is known for engineered valve solutions that meet demanding performance standards in power plants and process industries. HY-GRADE Valves produces innovative designs with minimal pressure drop and easy in-line maintenance, while DSS Valves specializes in severe service applications requiring high durability and tight shut-off. Özkan Makina offers reliable and cost-effective solutions for general industrial and marine use, and Valvitalia manufactures valves for high-pressure, high-temperature environments, particularly for the energy and oil & gas sectors.

In practice, the selection of a check valve depends on several factors including the system’s pressure class, temperature range, media type, and installation space. For example, power plants might require large-diameter swing check valves from Adams Armaturen for turbine protection, while offshore platforms could use Valvitalia or DSS Valves for corrosive or high-pressure service. In water distribution systems, compact and low-maintenance designs from HY-GRADE or Özkan Makina might be ideal for ensuring continuous flow without back contamination. By choosing a check valve from reputable manufacturers, operators ensure not only reliable backflow prevention but also long-term operational safety and compliance with international industry standards.

Providers of CHECK Valves

Flocoontrol — DSS Valves
HY-GRADE Valves
Flocontrol — Özkan Makina
Flocontrol — Valvitalia