Top Entry Ball Valves

Short Description:

Forged & Casting top entry ball valves

1- Forged & Casting Carbon steel,stainless steel,duplex,special materials

2- Flange ends,Butt welded

3- 150Lb ~ 2500Lb

4- 2”~40”

Product Detail

Product Tags

Product Description

Product description

Top-entry ball valve


Q40F top-entry ball valve

Nominal diameter

NPS 2~NPS 40

Operating temperature


Operating pressure

CLASS 150~CLASS 2500


WCB、A105、LCB、LF2、CF8、F304、CF8M、F316, etc.

Design standard

API 6D、ISO 17292

Structural length

ASME B16.10

Connecting end

ASME B16.5、ASME B16.25

Test standard

API 598、API 6D

Operation method

Manual, worm, pneumatic and electric

Application fields

Water, petroleum and natural gas

Other remarks 1

Parts such as bonnet, ball, valve seat, valve stem, etc. can be dismounted and installed online to realize the online repair function.

Other remarks 2

A locking device is provided to prevent misoperation of valve.

Other remarks 3

Valve stem flyout prevention structure design, to prevent accident due to flyout of valve stem caused by abnormal pressurization in the chamber

Other remarks 4

Fireproof and antistatic design

Other remarks 5

The valve stem and the valve seat are equipped with an injection system.

Other remarks 6

DBB (double block and bleed) function

Integral structure

The body adopts the intergral structure,so as to ensure that is has enough strength and rigidityunder the maximum rated working pressure,the valve trims have been carefully designed and selected to ensure reliability under various service conditions.the sufficient wall thicnkness and the connection bolts,of high strength are very helpful to the maintenance and servicing of valves are able to endure pipeline stress

Top entry structure

The valve adopts the top entry structure,the most distintive difference between this kind of valve and others is that the online maintenance function can be realized without the need of removing the valve from the pipeline,the seat adopts the concession type seat structure,and the rear end of the seat retainer is set as oblique angle to prevent impurities accumulated on the seat from influencing the concession of seat

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