High-Performance Lubricated Plug Valves
Engineered for zero-leakage isolation in demanding industrial pipelines. Manufactured with precision in our Wenzhou and Shanghai facilities to meet stringent API and ASME standards, ensuring reliable flow control for critical media.
API 6D Certified
Full Traceability
Robust Flow Control for Critical Applications
FZV Lubricated Plug Valves are designed with a cylindrical or tapered plug and a specialized lubrication system. This design allows pressurized sealant to be injected directly between the plug face and body seat, creating a renewable, bubble-tight seal even if the seating surfaces sustain minor damage from abrasive media.
Backed by our comprehensive manufacturing capabilities—including advanced machining, precision welding, and rigorous valve testing—each unit guarantees exceptional durability, ease of operation, and extended service life in the harshest environments.
- In-Line Maintenance: Restore sealing integrity without removing the valve from the pipeline.
- Metal-to-Metal Seating: Inherently fire-safe design capable of handling high temperatures.
- Protected Surfaces: Seating surfaces are not exposed to the line fluid when in the open position.
Why Choose FZV Plug Valves
Leveraging decades of manufacturing expertise, our valves are built to deliver uncompromising safety, reliability, and operational efficiency.
Zero Leakage
Pressurized sealant system creates an impenetrable barrier, ensuring absolute isolation even under high pressure drops.
Quality Assurance
Rigorous material inspection and in-house testing guarantee full manufacturing traceability and compliance with API standards.
Custom Configurations
Multiple valve constructions, material options, and actuation types available to suit specific pipeline requirements.
Extended Lifespan
Robust design and regular maintenance via the lubrication system significantly reduce wear and extend operational life.
Technical Specifications
| Parameter | Specification Range |
|---|---|
| Size Range | 1/2" ~ 36" (DN15 ~ DN900) |
| Pressure Rating | ASME Class 150 ~ 2500 (PN20 ~ PN420) |
| Design Standards | API 599, API 6D, ASME B16.34 |
| Face-to-Face | ASME B16.10, API 6D |
| End Connections | Flanged (RF, RTJ), Butt Weld (BW), Hub End |
| Body Materials | Carbon Steel (WCB, LCB, LCC), Stainless Steel (CF8, CF8M), Duplex, Super Duplex, Inconel, Monel |
| Plug & Seat Treatment | ENP, Tungsten Carbide, Stellite Overlay, Nitriding |
| Actuation Options | Wrench, Gear, Pneumatic, Hydraulic, Electric |
Proven in the Toughest Industries
Our lubricated plug valves provide reliable isolation in sectors where standard valves fail due to abrasive particulates, scaling, or high viscosity fluids.
Oil & Gas Pipelines
Ideal for crude oil, natural gas, and multiphase flow isolation.
Petrochemical
Handling corrosive media and high-temperature slurries.
Mining & Slurry
Resisting severe abrasion from particulate-heavy fluids.
Frequently Asked Questions
Common inquiries regarding our lubricated plug valve solutions.
How often does a lubricated plug valve require sealant injection?
Can these valves handle abrasive media like slurries?
What materials are available for the valve body and plug?
Are FZV plug valves fire-safe certified?
Request a Custom Quote
Provide your project specifications, and our engineering team will get back to you with technical data and pricing within 24 hours.