
Sealed Reliable Pressure Balanced Inverted Lubricated Oil Sealed Plug Valve for Petroleum Chemical Pharmaceutical Industries
TIANYU back pressure balanced lubricated plug valves integrate inverted pressure balancing and forced lubrication technologies to deliver reliable fluid control for Class 150~Class 900 high-pressure systems. Covering DN25~DN350, they suit water, oil, gas, acid-base solutions, and excel in rigorous applications across petrochemical, pharmaceutical, and power industries. Through precision casting, strict testing, and life cycle cost optimization, TIANYU provides global industrial clients with high-performance, low-maintenance valve solutions.







