National Standard Flange Gate Valve
GB Standard Flange Gate Valve – YONCO PN16 to PN160 The YONCO GB Standard Flange Gate Valve is a premium isolation valve designed and manufactured in […]
GB Standard Flange Gate Valve – YONCO PN16 to PN160
The YONCO GB Standard Flange Gate Valve is a premium isolation valve designed and manufactured in strict accordance with the GB/T 12234 specification. Widely applied in the petrochemical industry, thermal power plants, and other heavy-duty applications, this valve provides reliable connect or shut-off operations for pipelines carrying oil, water, steam, and chemical mediums. Featuring a compact structure, smooth flow channel, and minimal flow resistance, it is the ultimate choice for efficient and secure industrial fluid control.
Core Features & Advantages
- Optimized Structural Design: Features excellent valve body rigidity, a compact footprint, and a streamlined flow path to maintain an ultra-low flow coefficient.
- Durable Sealing Surfaces: The disc and seat sealing surfaces are hard-faced with premium stainless steel or hard alloy, delivering exceptional wear resistance and a significantly prolonged service life.
- Reliable Stem Sealing: Utilizes high-quality flexible graphite packing to ensure zero-leakage sealing, while keeping operation exceptionally light and flexible.
- Advanced Wedge Options: Available in an elastic wedge single-disc structure, or rigid wedge single/double-disc configurations, engineered to automatically compensate for pipeline stress and temperature fluctuations.
- Versatile Actuation: Standard configurations accommodate manual handwheel operations, with optional upgrades for gear transmission, pneumatic, and electric actuators based on system automation requirements.
Standards & Technical Specifications
| Category | Applicable Standard & Details |
|---|---|
| Design & Manufacture | GB/T 12234 |
| Face-to-Face Dimension | GB/T 12221 |
| Flange Connection | JB/T 79.1 |
| Test & Inspection | JB/T 9092 |
| Pressure & Temperature Base | GB/T 9131 |
| Nominal Pressure (PN) | 1.6, 2.5, 4.0, 6.4, 10.0, 16.0 MPa |
| Body Materials | Carbon Steel (C), CrNiTi (P), CrNiMoTi (R), CrMo (I) |
| Applicable Mediums | Water, Steam, Oil, Nitric Acid, Acetic Acid |
Primary Applications
• Petrochemical Processing
• Thermal Power Plants
• Oil Refining & Pipelines
• Industrial Steam Networks
• Corrosive Chemical Systems
• Municipal Water Engineering
High-Performance GB Valves by YONCO
When failure is not an option, rely on YONCO. Our GB standard flange gate valves undergo rigorous hydrostatic and pneumatic testing to ensure bubble-tight isolation and absolute structural integrity. We offer complete customization on body materials (Carbon Steel to CrMo alloys) and tailored actuation solutions. Contact our sales engineers today to specify the exact trim and pressure rating for your critical pipeline.
