Plug Valve Manufacturer in Germany

ValvesOnly Europe, a Plug Valve Manufacturer in Germany, designs and manufactures plug valves for on/off and diverting service across oil & gas, petrochemical, chemical processing, power generation, marine, pulp & paper, mining, and water & wastewater infrastructure. Each valve is built to match line pressure, temperature, and media compatibility requirements defined by the project specification. 

What is a Plug Valve?

Plug valves consist of a cylindrical or conical plug with holes through which the media flows in order to control, start, or divert flow in the pipeline. The 90 degree rotation of the plug controls the flow from the valve by opening or closing the port in relation to the seat in the valve body.

Working Principle:

The plug sits inside the valve body and rotates on a vertical axis. In the open position, the bore in the plug lines up with the inlet and outlet ports, allowing straight through flow with minimal pressure drop. A 90° turn moves the solid section of the plug across the flow path, sealing against the body seat or a sleeve/liner to stop flow. Sealing is achieved either through metal to metal contact under lubrication, a resilient sleeve, or a spring energized seat, depending on valve type.

Types of Plug Valve:

• Connection Lift Plug Valve – Lifts the plug off the seat before rotating, cutting wear on slurry and solids bearing lines.
• Eccentric Plug Valve – Off center rotation clears the seat during travel, touching it only at closure for low torque and long seat life.
• Orbit Plug Valve – Cam guided path lifts the plug clear while turning, then seats it with straight line compression on abrasive media.
• Twin Seal Plug Valve – Dual spring loaded seals give bidirectional double block and bleed with in-line seat inspection.
• Jacketed Plug Valve – Circulating jacket holds process temperature, preventing solidification in high viscosity lines.
• Lubricated Plug Valve – Injected sealant fills tolerances and lowers torque for high pressure hydrocarbon and gas service.
• Non Lubricated Sleeved Plug Valve – Fixed PTFE/elastomer sleeve gives a maintenance free, low torque seal for corrosive, frequent cycle duty.
• 3 Way Plug Valve – Three port bore enables diversion, mixing, or by pass, replacing multiple two-way valves.

Technical Specifications:

Design & Construction Features:

• Tapered or cylindrical plug geometry for self adjusting seal contact
• One piece, two piece, or three piece body construction
• Regular, venturi, or full bore port configurations
• Top entry or side entry design for in-line maintenance
• Corrosion resistant sleeves, liners, or coatings on the plug and body
• Anti static device between stem, plug, and body
• Fire safe design available per API 607 / API 6FA
• Blowout proof stem construction
• Manual lever/gear operation or actuator ready top works (pneumatic, electric, hydraulic)

Materials of Construction:

• Body & Plug: Carbon steel, stainless steel (304/316), duplex and super duplex steel, alloy steel, ductile iron, cast iron
• Sleeves/Liners: PTFE, PFA, TFM, elastomer compounds
• Seals & Gaskets: PTFE, graphite, Viton, elastomer
• Trim: Stainless steel, Monel, Hastelloy, Inconel for corrosive or abrasive service

Standards & Certifications:

• Design: API 599, API 6D, BS 5353, MSS SP-78, ISO 5211
• Face to face: API 6D, ASME B16.10
• Flange ends: ASME B16.5, ASME B16.47, EN 1092
• Testing: API 598, ISO 5208
• Fire safety: API 607, API 6FA
• Fugitive emissions: ISO 15848-1, TA-Luft
• Marking: MSS SP-25

Plug Valve Customization and Testing

Valvesonly Europe manufactures plug valves to order, matching body material, trim, sleeve type, port configuration, and actuation to the operating conditions of each line. Every valve is pressure tested and documented in line with API 598 / ISO 5208 before dispatch, with material traceability and third party inspection available on request.