Established in 2008 with a registered capital of RMB 5 million, GNEE Group is a leading international supplier specialising in the manufacture and distribution of high quality valves and fittings for a wide range of industrial applications including water supply, sewage systems, oil and gas, and marine treatment.
Why choose us
Our Products
GNEE Group specializing in the manufacture and distribution of high quality valves and fittings for a wide range of industrial applications including water supply, sewage systems, oil and gas, and marine treatment.
Sales Market
GNEE valves have been exported to more than 160 countries around the world, and every year more than 50 customers visit the GNEE Group and order more than 30,000 pieces of valves.
Our Team
Established in 2008 with a registered capital of RMB 5 million, GNEE Group At present, the company has a total investment of 30 million yuan, a plant area of more than 35,000 square meters and more than 200 employees.
Customer Service
GNEE Group always puts product quality and customer needs first, and strives to provide better services to each of our customers. We follow the latest standards and focus on management, technology and process innovation. With a mature sales service system, GNEE Group insists on providing one-stop service to every customer.
We can provide you with single gland type plug valves, double glands type plug valves, 3-way plug valves, jacketed plug valves, full port plug valves. In addition to standard ranges, also available from stock are full bore, lockable, and ATEX compliant actuation, low emission, etc. See below some specifications available:
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Design |
API599, ASME B16.34 |
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Testing |
API 598, API6D, EN12266-1 |
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Face to face dimension |
ASME B16.10 |
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Ends connection |
ASME B16.5, ASME B1.20.1, ASME B16.25 |
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Pressure temperature rating |
ASME B16.34 |
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Marking |
MSS SP-25 |
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Non-destructive Examination |
VT, PT, RT, UT, MT |
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Options |
Full bore reduced bore |
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Structure Features
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Non-lubricated |
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Threefold stem seal system |
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Zero leakage |
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Cavity free design |
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360° metal lips design |
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Quick turn feature |
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Anti-static Design |
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Fire-safe |
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Replaceable sleeve |
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Bi-directional flow |
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Double gland seals design |
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Trunnion design |
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Fugitive emission design |
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Operation |
Handle, Gear, Pneumatic actuators, Hydraulic actuator, Electrical actuator |
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Aspect |
Plug Valve |
Ball Valve |
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Structure |
Cylindrical or conical plug with a bored passage. Compact design, suitable for low-profile installations. |
Spherical ball with a hollow center. Simple structure, often bulkier than plug valves. |
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Working Mechanism |
Regulates flow with a 90-degree rotation of the plug. Seals are created by pressure between the plug and the valve body. |
Controls flow with a 90-degree rotation of the ball. Seals formed by the ball’s alignment with seats. |
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Flow Control |
Suitable for basic on/off operations and diverting flow in multiport configurations. Limited throttling capabilities. |
Ideal for on/off control and certain throttling applications. Full-bore ball valves allow unrestricted flow. |
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Sealing Performance |
Better sealing due to larger contact surface. Requires higher torque for operation. |
Seals less effectively than plug valves but advancements in seat materials improve performance. |
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Material |
Common materials: Cast iron, bronze, stainless steel, and alloy steel for higher temperatures. |
Common materials: Stainless steel, carbon steel, PVC, and brass for various applications. |
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Applications |
Used in oil and gas, chemical industries, and water distribution systems where durability and cost-efficiency are priorities. |
Widely used in oil and gas, HVAC systems, water treatment, and food processing for versatility. |
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Cost |
Generally less expensive due to simpler construction. |
More expensive, especially in high-quality or multiport configurations. |
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Durability |
Larger surface contact results in more wear and susceptibility to corrosion over time. |
Longer lifespan due to reduced contact area and lower torque requirements. |
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Size Range |
Available in sizes from 1/4 inch to 36 inches depending on type and application. |
Commonly available in sizes from 1/4 inch to 24 inches, with larger sizes for full-port designs. |
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Pressure Rating |
Suitable for low to medium-pressure applications, typically up to 300 psi. |
Suitable for low to high-pressure applications, up to 6000 psi in high-performance models. |
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Customization |
Limited customization options. Multiport configurations (2–5 ports) are common but costly. |
High customization options, including unidirectional, bidirectional, and top/side entry models. |
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Maintenance |
Easy to maintain due to fewer parts and accessible design. Cleaning is straightforward. |
Requires more effort to clean and maintain, as the ball is deep inside the valve body. |
Common Uses for Plug Valves
High-Pressure Flow Lines
Since plug valves are able to handle high pressure, they’re often used in high-pressure applications like cementing, high-pressure/temperature materials, coiled tubing, acidizing, etc.
Dirty Upstream Applications
This is where most lubricated plug valves find their home. These valves won’t get clogged, can handle abrasive/corrosive materials, etc.
Flow Control/Isolation
Because of the “plugged” and “open” configuration that’s easily controlled, plug valves offer great flow control and isolation of materials. These valves can easily seal and separate liquids to avoid contamination or mixing, which is also crucial for certain high-pressure applications.
Sewage, Mud, Oil, Coal Slurries, etc
Plug valves don’t get clogged, so they can handle these abrasive types of materials. These valves are also great at control and isolation, as we just went over, which also makes them useful for working on flow lines with these materials.
The industry codes and standards governing the plug valve design, test and inspection are:
ASME B16.10-Face to Face and End to End Valve Dimensions
API 599 – Metal Plug Valves – Flanged, Threaded, and Welding Ends
API 6D – Specification for Pipeline valves
API 598 – Valve Inspection and Testing
API 6FA – Fire Test for Valves
BS 5353 – Specification for steel plug valves
BS 5188 – Specification for cast iron plug valves
MSS SP 61 – Pressure testing of steel valves
MSS SP 25 – Standard marking system for valves, fittings, flanges & unions
MSS SP 78 – Gray Iron Plug Valves, Flanged and Threaded Ends
Our Honor
FAQ
As one of the most professional plug valve manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to wholesale discount plug valve in stock here and get free sample from our factory. For customized service, contact us now.
top entry valves, Lubricated Plug Valve, Jacketed Plug Valve