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Top Entry Ball Valve

China top entry ball valve manufacturers, top entry ball valve suppliers, top entry ball valve factory. Leakages are effectively prevented from the Vatac Top entry ball valves because of an uni-body structure, this type of ball valve can be maintained and repaired at site under service condition to ensure an easy routine maintance; It is easy to remove the Vatac's bonnet of these items to allow an easy access to the body cavity without dismantling the valve from the pipeline. Both ball and seat-rings can be taken out only by a set of special maintenance tools; this maintenance operation requires very small space around the valve, which make it as the perfect solution whereever space or on-line maintenance is a headache.


The Vatac top entry items are announced in both Forged & cast fabrications with one piece symmetic body, Vatac manufactured an advanced structure of top-entry ball valves in a broad line of diameters and pressure classes with below listed features:


Design Features
» Floating ball or Trunnion Mounted
» Resilient or metal seated design
» Full port or reduced bore
» Optional D.B.B & Dual Piston Effect
» Uni-body with Buttweld or Flanged Ends
» Seat Lubrication and emergency Sealing Device
» Fire Safe; Anti-static device; Blow-out proof stem
» Optional Top flange to ISO 5211
» Optional locking device


Standards Compliance
» Design API 6D, ISO 14313, ASME B16.34
» Face to Face to ASME B16.10
» End Type ASME B16.5 & B16.47 & ISO 7005
» WPS-PQR & WPQ certification complying to American Welding Standards

Please feel free to contact with us at sales@cnvchina.com or filling up an enquiry form instructed at the bottom, You will get an effective response within 24 hours from Vatac sales representative.
Thanks for your valued time with interest!

» One-piece flange top-entry trunnion design
» Double block and bleed
» One-piece ball and stem assures precise positioning
» Anti blowout one-piece ball/stem design
» O-rings plus fire-safe packing prevents leakage
» Corrosion resistant low friction bearings
» Wave springs provide upstream and downstream sealing
» Stainless Steel Sealant injection fittings for emergency stem of seat sealing
» Inline repairable due to reasonable seat retainer design
» Minimized torque required to open and close valve
» Anti-static grounding between ball, stem and body
» Integral top works direct mounting pad
» ASME B16.34, API 6D, API 6A, 607 and 6FA, NACE MR 0175
» CE Marked (P.E.D.97/13/EC)

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