Top-Entry Ball Valve

Overview

The cover of top-entry ball valve can be disassembled from the body of the valve, so all parts can be easily maintained or replaced in-line. On demand, trem, trunnion and ball can be made as a monobloc piece. This option increases the reliability of the valve. This construction allows more flexibility in customization of driving train design, allowing for example the mounting of an actuator directly on the bonnet without an intermediary bracket.

Range

ND 1" (DN25) to ND 24" (DN600)

Classes

ASME CLASS 150 to 2500
DIN-PN PN 10 to 64

Material

Carbon & low alloy Steels
Stainless steels
Duplex & Super Duplex
Nickel Alloys
Titanium

Design features

API 6D/6A design & construction
API 6D & ASME B1610 face to face
Antistatic device
Double block and bleed (DBB)
Drain plug
Connection ends upon request
Firesafe design
O-ring seals
Self-Relieving seat
Soft seat insert
Trunnion mounted
Lifting lugs /valve support
Vent plug

On request

Full/reduced/customize bore
Manual or actuated operation

Optional Design Features

Automatic bleeding system
By-pass system
Double Piston Effect (DPE)
Double Isolation & Bleed (DIB)
ENP on seat/ball/stem/body
Extended stem
Heating jacket
Locking device
Metal to metal seats
Overlay on seat pocket
Overlay on dynamic seal pockets
Overlay on all wetted parts
Polymeric lip-seals
Single Piston Effect
Stem injection fitting
Seat injection fitting
Transition pups pieces BW ends