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Top Entry

PIBIVIESSE Top Entry ball valves are manufactured in a wide range of diameters and pressure classes. PIBIVIESSE valves are specified for transmission pipelines, pumping, compression and re-injection units, offshore platforms, onshore terminals, pig traps, measuring stations any critical applications such as subsea installations, cryogenic service in LNG plants, high temperature and abrasive services.
PIBIVIESSE Top Entry valves are full inline field repairable and can be used in any critical service applications where in-situ field reparability and quick turnaround are needed. Thanks to this characteristic top entry valves can also be welded directly onto the pipeline still allowing easy maintenance operation.
PIBIVIESSE Top Entry valves are sized to withstand external loads from the pipeline even when the bonnet, the ball and the seats are removed for maintenance. The cast body and forged bonnet construction allow the use of various grades of carbon steel, stainless steel and other alloys thus complying with most severe service conditions.


Model > T
Size > 1.5” through 64”
Classes > 150 through 2500 and API 2000 to 15000
Temperature > -193 °C to 600 °C

Download datasheet

Design & Features

  • Trunnion mounted ball
  • Triple barrier stem seals
  • Anti-Blow Out stem design
  • Stem separated from the ball
  • Bearing plates adsorbing the pressure load on the ball
  • Single or Double piston effect sealing barrier in both directions
  • Built in grease & sealant injection system for emergency stem and seat seal
  • Self-lubricating bearings and thrust washer reducing torque and to extend service life
  • Body thickness in accordance with ASME B16.34
  • Bolting design to ASME VIII as standard. Different design available on request
  • Polymeric insert, O-Ring or Metal to metal seat sealing
  • Inconel 625 or 316 overlay on sealing areas or on all wetted areas when required
  • Reference stop in the adapter plate for a permanent indication of open and closed position
  • Antistatic device
  • Double Block and Bleed
  • In-line maintainable
  • Features for vertical pipe installation

Designed to perform, built to last.

Contact Us

fax Via Bergamina, 24 20014 NERVIANO (Milano) ITALY
phone +39 0331 408711
fax +39 0331 408800
mail info@pibiviesse.com
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