Pilot Operated Pressure Reducing Valve Manufacturer in Italy – Valvesonly Europe 

Valvesonly Europe is a specialized Pilot Operated Pressure Reducing Valve Manufacturer in Italy, providing advanced valves for precise pressure control. 

Function & Working 

Pilot-operated PRVs use a pilot valve to sense downstream pressure, modulating the main valve for accurate control and higher flow capacity. 

Advantages 

  • Accurate outlet pressure regulation 
  • Handles fluctuating inlet pressures 
  • High flow rates with stable control 

Standards & Compliance 

Category  Standards Followed 
Design  EN 1567, ASME B16.34 
Testing  EN 12266, ISO 5208 
End Connections  EN 1092-1, ASME B16.5, Threaded 

Materials of Construction 

Component  Materials  Grades & Standards 
Body  Cast Iron, Ductile Iron, Stainless Steel, Bronze  EN-GJS-400, ASTM A351 CF8/CF8M, ASTM B62 
Pilot Assembly  Stainless Steel, Bronze  ASTM A182, ASTM B62 
Seat  SS316, Bronze  ASTM A182 
Spring  SS304, SS316  ASTM A313 
Diaphragm  EPDM, NBR  — 

End Connections: Threaded, Flanged 

Industries Served: Municipal Water, Fire Protection, Steam Systems, Irrigation 

Technical Specifications 

Parameter  Range 
Size  DN25 – DN400 
Pressure Ratings  PN10 – PN40 
Outlet Pressure  0.5 bar – 20 bar 
Temperature  0°C to 180°C 
Operation  Pilot-operated 
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