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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