GB Corrugated Gate Valve
The GB corrugated gate valve utilizes a stainless steel bellows seal to eliminate stem leakage and enhance operational safety. Manufactured according to Chinese GB standards, it offers excellent sealing performance, corrosion resistance, and low maintenance requirements. Ideal for steam, thermal oil, toxic fluids, and high-temperature industrial process systems.
GB Corrugated Gate Valve
The GB Corrugated Gate Valve, also known as the GB Bellows Seal Gate Valve, is designed to provide absolute stem sealing and reliable flow isolation in demanding industrial environments. Its welded stainless steel bellows assembly prevents media leakage through the stem area, significantly improving environmental protection, operational safety, and equipment reliability.
Manufactured in accordance with GB, JB, and related Chinese industrial standards, the valve combines a robust gate valve structure with advanced bellows sealing technology. The double sealing system, consisting of a bellows seal and backup packing seal, ensures maximum protection against fugitive emissions.
GB corrugated gate valves are widely used in petrochemical plants, thermal power stations, chemical processing facilities, district heating systems, pharmaceutical production, and other applications requiring zero external leakage.
As a professional valve manufacturer, we provide complete OEM and ODM services.
Our GB corrugated gate valves comply with international manufacturing and testing standards.
GB Corrugated Gate Valve
| Parameter | Specification |
|---|---|
| Product Name | GB Corrugated Gate Valve |
| Valve Type | Bellows Seal Gate Valve |
| Standard | GB Standard |
| Nominal Size | DN15–DN600 |
| Pressure Rating | PN16–PN100 |
| Body Material | WCB, CF8, CF8M, Alloy Steel |
| Bellows Material | SS304, SS316, Inconel |
| Gate Material | Stainless Steel |
| Stem Material | Stainless Steel |
| Connection Type | Flanged, Butt Weld, Socket Weld |
| Operation | Handwheel, Gear, Electric, Pneumatic |
| Seat Type | Metal Seat |
| Temperature Range | -29°C to +425°C |
| Leakage Standard | Zero Stem Leakage |
| Design Standard | GB/T 12234 |
| Face-to-Face Standard | GB/T 12221 |
| Flange Standard | GB/T 9113 |
| Testing Standard | GB/T 13927, API 598 |
| Applicable Media | Steam, Thermal Oil, Water, Chemicals |
| Service Life | Long-Life Bellows Design |
GB Corrugated Gate Valve
Hazardous fluid transportation, refinery systems, process isolation pipelines.
Toxic media handling, corrosive fluid control, environmental protection systems.
Main steam systems, auxiliary steam pipelines, boiler process applications.
Hot water transmission systems, urban heating infrastructure.
High-purity fluid handling, contamination-free process systems.
Clean process pipelines, sanitary utility systems, steam distribution networks.
Pipeline isolation, process control systems, storage terminal applications.
Low-emission process systems, fugitive emission control applications.
Material customization plan
Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.
Structural optimization design
For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.
Interface standard adaptation
Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.
