Top entry ball valve

Integral body design, flange or butt welded preferable
Double Block and Bleed
High strength integral stem design, precisely guaranteed ball location
Anti-blow-out stem design
2 sets of O’ring seal plus fire safe design on stem, greatly avoided leakage
Anti corrosion, low friction coefficient bearing
Bi-direction seal
High performance Nylon and PEEK seat, grantees sealing under low pressure
Sealant injection can guarantee the seal of the stem and seat under emergency
Adopt unique adjusting seat ring design(seat ring is able to move forward & backward), enables to change stem, ball, seat ring, and seal on-line.
Low torque, easy operation
Anti static design
Equipped with mounting plate, convenient in mounting actuator anytime
Fire safe, when seat is destroyed in fire, the metal seat ring will contact the ball to provide sealing

Top entry ball valve / Technical parameters  
design standard  API 6D
Face to face  API 6D
Flange end ANSI B16.5
Butt-welding ends  ASME B16.25
Test &inspection  API 6D API598