• The YFL inverted pressure balanced plug valve has reasonable structure, reliable seal and excellent performance;
• Inverted structure with balanced pressure makes the YFL lubricated oil seal plug valve easy to open or close;
• Seal grease can be injected into seat through oil nozzle and oil groove between valve body and seal face to increase seal performance;
• Various materials and flange dimensions to meet different working conditions.

Product range:

• Size: 2"～14"
• Pressure rating: Class 150～900
• End connection: RF RTJ BW
• Body materials: WCB WC1 WC6 WC9 C5 CF8 CF8M CF3 CF3M UNS N08904 etc.
• Plug materials: A217 CA15 A182 F6a A351 CF8 CF8M CF3 CF3M etc.
• Operation: Bare stem Wrench gear electric pneumatic

Technical standards:

• Design: API 599 API 6D
• Face to Face: ASME B16.10
• BW ends: ASME B16.25 ASME B31.8
• Flanged ends: ASME B16.5 ASME B16.47
• Test and inspection: API 598 API 6D
• Pressure and temperature rating: ASME B16.34