Top Entry Ball Valve Manufacturer in Italy – Valvesonly Europe 

Valvesonly Europe is a leading Top Entry Ball Valve Manufacturer in Italy, producing floating, trunnion-mounted, and specialty valves. 

Function & Working 

Ball valves use a spherical ball to control flow, offering quick operation, tight sealing, and minimal pressure drop. 

Advantages 

  • Fire-safe, anti-blowout stem design 
  • Available in full and reduced bore 
  • Trunnion-mounted designs for high pressure 
  • Long cycle life with low torque operation 

Standards & Compliance 

Category  Standards Followed 
Design  API 608, API 6D, ISO 17292 
Testing  API 598, EN 12266 
Fire-Safe  API 607, ISO 10497 
Face-to-Face  ASME B16.10, ISO 5752 

Materials of Construction 

Component  Materials  Grades & Standards 
Body  Carbon Steel, Stainless Steel, Duplex  ASTM A216 WCB, A352 LCB, ASTM A351 CF8/CF8M 
Ball  SS304, SS316, Duplex  ASTM A182 
Seat  PTFE, RPTFE, Nylon, Metal-to-Metal   
Stem  SS410, SS316, Inconel  ASTM A182 
Packing  Graphite, PTFE   

End Connections 

Flanged, Butt Weld, Socket Weld, Threaded 

Industries Served 

Oil and Gas, Petrochemicals, Power, LNG, Chemical Plants 

Technical Specifications 

Parameter  Range 
Size  DN15–DN1200 
Pressure Ratings  PN10–PN250 / Class 150–1500 
Temperature  -196°C to 500°C 
Operation  Lever, Gear, Electric, Pneumatic 
Design Variants  Floating, Trunnion, Top Entry, DBB 
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