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Piston Valves

Our specialty - Over 5,000,000 Piston Valves sold all over the World!


Cesare Bonetti S.p.A. manufacture Piston Valves since 1926. With the new exclusive BONETTIŽ Piston Rings extended  performances of Piston Valves, now able to pass a leak test with temperature from -40 ēC up to Fire-Safe!
Piston Valves have been tested and approved for a wide range of applications:

  • by German THV for pressurized railway tanks application;
  • by German THV for TA Luft (no environmental leakage)  application;
  • by France Elf Petrol Co. for Fire-safe application;
  • by German BASF Co. for chemical
    plants application; Sure tightness, long life, easy and low cost maintenance, easy disassembling and inspection, standardized and low cost spare parts,  give to Piston Valve users a very long, very performant and trouble free operation.

Bolted Bonnet
Stop, Manual Flow Control
Materials: Cast iron, Nodular Iron, Carbon Steel, Stainless steel
Rating: PN 16 - 40 - 63 / ANSI 150 - 300 lb / API 800 lb
Size:  DN 10 to 200 ( 3/8" to 8")
Connections: Flanged to DIN / Flanged to UNI / Flanged to ANSI /Screwed / Socket Weld, Butt Weld

Piston Valve Specification Tables


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