Check Valve Manufacturer in Germany – Valvesonly Europe 

Valvesonly Europe manufactures check valves in Germany designed to prevent reverse flow and protect pumps, compressors, and process systems. Our valves are built in accordance with API 6D, API 594, and EN 12334 standards, ensuring compliance for critical industrial applications.


Function & Working

Check valves operate by opening under forward differential pressure and closing automatically when reverse flow occurs. Spring-assisted or counterweighted designs ensure rapid closure, reducing slam and limiting water hammer. Disc and seat geometry are optimized for high flow capacity with minimal pressure drop.


Advantages

  • Controlled cracking pressure with low ΔP

  • Disc design engineered for high Cv values

  • Renewable seats and wear-resistant bushings extend service life

  • Fire-safe and high-temperature options available

  • Designed and tested in Germany with full material traceability


Types Offered

  • Swing Check Valve

  • Dual Plate Check Valve

  • Tilting Disc Check Valve

  • Piston Check Valve

  • Ball Check Valve


Materials

Category Material Standards / Grades Typical Use
Carbon / Low Temp WCB, WCC, LCB, LCC ASTM A216 / A352 Hydrocarbons, utilities
Stainless Steel CF8, CF8M, CF3, CF3M ASTM A351 Corrosive services
Duplex / Super Duplex CD4MCu, S32750, S32760 ASTM A890 Seawater, high-chloride service
Alloy Steels WC6, WC9 ASTM A217 High-temperature pipelines
Nickel Alloys Alloy 20, Monel, Hastelloy, Inconel Acid, amine, sour applications
Bronze (Marine) C95800 Aluminium Bronze Seawater, marine environments
Internals SS410, SS416, SS420, SS316, F51; Hardfacing with Stellite or Tungsten Carbide Seat, hinge, and wear surfaces

Technical Specifications

  • Size Range: DN15 – DN1200

  • Pressure Ratings: PN10 – PN420 / Class 150 – 2500

  • Temperature Range: –196 °C to +600 °C

  • End Connections: Flanged, Butt Weld (BW), Socket Weld (SW)

  • Testing Standards: API 598 seat and shell test, EN 12266-1 leakage test

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