Technical Specifications
| Size Range NPS1/2"-24" / DN15-600mm | Main Material Carbon steel, Stainless Steel, Aluminum Bronze, Duplex steel etc.
(Other materials are available under request.) |
| Temperature Rating -29 ~ +100°C | Stem Material Stainless Steel |
| Pressure Rating I.0Mpa ~ 11.0Mpa 150LB ~ 600LB | Leakage Level Zero Leakage |
| Plug Material Carbon Steel,Stainless steel,Duplex steel etc. | Flange Drilling ASME B16.5, EN1092, GOST 33259, BS etc. |
| Seat Material NBR | Port Type Full Port |
| Design Standard API599, API 6D, ASME B16.34 | Test Standard API 598, EN12266-1, ISO 5208 |
| Face to Face API 16.10, EN558-1, API 599 | Operation Lever, Worm Gear |
| Application aviation kerosene, crude oil, light oil, natural gas, liquefied gas, pipeline gas, chemical medium and other pipelines as cutoff medium |
| Other The carefully selected materials and contemporary design make our plug valve highly recognized. If our Plug Valve cannot meet your choice, we can provide you with special made. |
Chief Features
During the opening and closing of the valve, the sealing surface of the valve body has no contact with the sealing surface of the sliding vane. Therefore, the sealing surface has no friction and wear, the service life of the valve is long, and the opening and closing torque is small
During the maintenance of the valve, it is not necessary to remove the valve from the pipeline, but only to remove the valve bottom cover and replace a pair of slide plates, which is very convenient for maintenance;
The valve body and plug are full port, the medium has no flow resistance when passing through the valve, and the pipe can be cleaned through the ball, which overcomes the shortcomings of the reducing valve;
The valve is equipped with relief device (optional) to prevent abnormal pressure rise in the valve chamber and check the effect of the valve after the valve is completely closed;
The sealing of the valve is achieved by the sealing ring around the valve. It has particular protection of swallow-tailed sink and fixed sealing rings.
Operation Principle
When the plug valve is fully open, the channel is in alignment with the channel of valve body,which can ensure ideal and lowest pressure drop.
When the handwheel is turned,the plug will rotate toward the closing direction,and at the same time draft the rotation of the valve disc by 90°.When the handwheel is turned further on,the plug will pressured down,and make the valve disc open to two sides,so that the valve disc will be firm contact with the valve seat and close the valve.
When the handwheel is turned inversely,first of all the plug will move upward,and the valve disc and valve seat will be separated,second the handwheel shall be turned further on,till the valve disc is turned by 90°driven by the plug,finally the channel of plug will be in alignment with the channel of valve body,the valve is fully opened.
Product Benefits
Friction-Free Mechanical Sealing: The core mechanism ensures that the sealing surfaces are completely separated during the travel cycle, eliminating friction wear and minimizing operating torque.
Convenient Inline Maintenance and Repair: Operators can replace worn side plates quickly by removing the valve bottom cover, eliminating the need to cut or remove the valve body from the pipeline.
Overpressure Cavity Protection: Offers an optional relief assembly that bleeds off abnormal pressure accumulation within the body chamber when fully isolated.
Broad Media and Slurry Versatility: Specially engineered to control high-velocity media ranging from aviation kerosene and crude oil to natural gas and complex industrial chemicals.
Why Choose Lixin Valve?
Certified Global Design Engineering: Our production facilities build assemblies in strict accordance with universal regulatory frameworks, satisfying API 599, API 6D, and ASME B16.34 technical design standards.
Comprehensive Multi-Alloy Sourcing: We offer robust body metallurgy configurations including heavy-duty Carbon Steel, Stainless Steel, Aluminum Bronze, and Duplex steel.
Rigorous Zero-Leakage Quality Testing: Every single component undergoes exhaustive pressure validation testing conforming strictly to API 598 and ISO 5208 inspection protocols.
FAQs
1. What design mechanism allows an orbit plug valve to eliminate wear on the sealing surface?
An orbit plug valve uses a unique lift-and-turn action that separates the plug from the seat before rotating, ensuring zero friction and zero wear during the opening and closing cycles.
2. Which main standards govern the manufacturing of an API 6d plug valve?
A certified API 6d plug valve must satisfy the rigorous pipeline design requirements of the American Petroleum Institute, which dictates face-to-face dimensions and pressure validation parameters. For a deeper look into these rules, check out our API 6D plug valves: a comprehensive guide.
3. How does an API 599 plug valve differ from standard pipeline check valves?
An API 599 plug valve serves as a quarter-turn isolation and throttling instrument, whereas check valves prevent backflow. To learn more about selecting the correct layout, check our comparison plug valve vs check valve: what's the difference.
4. What sizing dimensions are available from a premier china plug valve factory?
As a premium china plug valve manufacturer, LIXIN offers a versatile size matrix spanning from NPS 1/2" up to 24" (DN15 to DN600mm) to support massive industrial infrastructure projects.
5. What testing data can a global plug valve manufacturer provide to verify zero leakage?
A reliable plug valve manufacturer performs hydrostatic and pneumatic pressure shell and seat tests conforming directly to API 598, EN12266-1, and ISO 5208 standards.
6. How does a high-volume plug valve supplier simplify in-line field maintenance for operators?
An experienced plug valve supplier designs assemblies with a removable bottom cover, allowing field technicians to replace slide plates easily without extracting the entire valve body from the pipeline.
7. What soft seat elastomer materials are utilized in an API 599 plug valve?
Our API 599 plug valve models utilize premium NBR soft seat rings tightly embedded within a specialized swallow-tailed sink to prevent seal displacement under high velocities.
8. Can this china plug valve handle pipeline scraping or pigging operations?
Yes, this china plug valve features a full-port interior layout with an unobstructed flow path that allows cleaning balls or inspection pigs to pass smoothly.
9. What specific media applications are ideal for this specialized plug valve manufacturer?
As a dedicated plug valve manufacturer, we supply heavy-duty valves optimized for isolating aviation kerosene, crude oil, light oil, natural gas, liquefied gas, and corrosive chemical media.
10. Why is a full-port design preferred by an international plug valve supplier?
A reputable plug valve supplier provides a full-port bore to mirror the internal pipe diameter exactly, which minimizes fluid turbulence and guarantees the lowest possible pressure drop.
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