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acketed Plug Valve Manufacturer in Italy – Valvesonly Europe 

Valvesonly Europe is a trusted Jacketed Plug Valve Manufacturer in Italy, delivering precision-engineered valves designed to handle viscous, solidifying, or high-temperature media. Our steam-jacketed plug valves ensure consistent product flow by maintaining fluid temperature during operation, making them essential for applications in petrochemicals, bitumen, and polymer industries. 

Function & Working 

Jacketed plug valves consist of a body with integral or welded jackets that allow steam, oil, or hot water circulation around the valve chamber. This design maintains process fluid viscosity, prevents solidification, and enables smooth shutoff and throttling. The valve plug, usually PTFE-sleeved or metal-seated, rotates 90° for on-off service while ensuring tight sealing. 

Advantages 

• Maintains process fluid temperature and viscosity 

• Prevents solidification of polymers, resins, bitumen, and heavy oils 

• Simple quarter-turn operation with minimal torque 

• Available in both lubricated and non-lubricated designs 

• Fire-safe and blowout-proof construction available 

• Long service life under harsh operating conditions 

Applications / Industries Served 

• Petrochemicals & Refining 

• Polymer & Resin Processing 

• Asphalt & Bitumen Handling 

• Chemical Plants 

• Marine & Power Industries 

Materials 

End Connections 

• Flanged (ASME B16.5) 

• Butt Weld (BW) 

• Socket Weld (SW) 

• Screwed (NPT / BSP) 

Actuation Options 

Manual lever, gear operator, pneumatic actuator, or electric actuator. 

Technical Specs 

• Design: API 6D, ASME B16.34 

• Size Range: DN15 – DN600 (½″ – 24″) 

• Pressure Ratings: Class 150 – 600 / PN10 – PN40 

• Testing: API 598, EN 12266