DIN Standard Bellows Seal Globe Valve
DIN Standard Bellows Seal Globe Valve – YONCO PN16 to PN40 The YONCO DIN Standard Bellows Seal Globe Valve (WJ41Y) is a premium zero-leakage isolation valve […]
DIN Standard Bellows Seal Globe Valve – YONCO PN16 to PN40
The YONCO DIN Standard Bellows Seal Globe Valve (WJ41Y) is a premium zero-leakage isolation valve engineered specifically for hazardous, high-temperature, and toxic fluid applications. Designed to handle nominal pressures from PN16 to PN40 and working temperatures between -20°C and +350°C, this valve is the ultimate choice for safely regulating fluids in the petroleum, chemical, pharmaceutical, fertilizer, and power generation industries. Featuring a robust bellows and packing double-sealing mechanism, it completely eliminates fugitive emissions, ensuring environmental safety and preventing costly media loss.
Core Features & Advantages
- Zero-Leakage Double Sealing: Features an advanced German Standard (DIN) metal bellows assembly combined with secondary flexible graphite packing, providing absolute zero-leakage protection to stem and eliminating fugitive emissions.
- Hard-Faced Seating: The disc and seat sealing surfaces are precision hard-faced with a Cobalt-based (Co) cemented carbide, delivering superior wear resistance, excellent anti-galling properties, and a significantly extended service life.
- Surface-Treated Valve Stem: The stem undergoes specialized tempering and surface nitriding treatments, offering outstanding resistance against corrosion and operational friction to ensure smooth, jam-free actuation.
- Visual Position Indication: Equipped with a clear stem lifting position indicator, allowing operators to easily and intuitively verify the valve’s open or closed status from a distance.
- Customizable Configurations: Component materials, flange types, and butt-weld dimensions can be perfectly tailored to meet specific working conditions or unique industrial engineering requirements.
Standards & Technical Specifications
| Category | Applicable Standard & Details |
|---|---|
| Design & Manufacture | DIN 3356 |
| Face-to-Face Dimension | DIN 3203 |
| Flange Connection Dimensions | DIN 2543 – DIN 2545 |
| Nominal Pressure (PN) | 1.6 MPa – 4.0 MPa (PN16 – PN40) |
| Size Range | DN15 – DN400 |
| Working Temperature | -20°C to +350°C |
| Test & Inspection | DIN 3230 |
| Body Materials | GS-C25 (Cast Steel), CF8 (304), CF3 (304L) |
Primary Applications
• Toxic & Hazardous Media Pipelines
• Thermal Oil & Heat Transfer Systems
• Pharmaceutical Manufacturing
• Chemical & Petrochemical Plants
• Fertilizer Processing Facilities
• High-Temperature Steam Networks
Zero-Leakage Bellows Valves by YONCO
When handling toxic, flammable, or high-temperature media, failure is not an option—rely on YONCO. Our DIN standard bellows seal globe valves undergo rigorous testing to ensure zero fugitive emissions and bubble-tight isolation under the most demanding industrial conditions. We provide complete customization on body materials—from GS-C25 cast steel to premium austenitic stainless steel—and tailored actuation solutions. Contact our technical sales engineers today to specify the exact configuration for your zero-leakage pipeline requirements.
