Top Entry Ball Valves
The FZV series of top-entry ball valves have been engineered to meet both the general service and heavy-duty applications with a focus on inline repairability.
Key Application(s)
- Water, petroleum and natural gas
Design Features
- Sizes from NPS 2 to NPS 56
- CLASS 150 to 2500
- Operating temperature -46℃ to 121℃
- Parts such as the bonnet, ball, valve seat, valve stem, etc. can be dismounted and installed online to realize the online repair function
- A locking device is provided to prevent misoperation of the valve
- Valve stem flyout prevention structure design, to prevent an accident due to the ejection of valve stem caused by abnormal pressurization in the chamber
- Fireproof and antistatic design
- The valve stem and the valve seat are equipped with an injection system
- DBB (double block and bleed) function
Reference
Design Standards
- API 6D
- ISO 17292
Face-to-Face
- ASME B16.10
End Connection
- ASME B16.5
- ASME B16.25