DALIAN TYPE BELLOWS GLOBE VALVE
ProductModel:BL8C5YNominal Diameter:15~50mm
Nominal Pressure:1.6~16MPa
suitable temperature:-29°C-425°C
suitable Medium: water,steam,oil products
Product Listing: DALIAN TYPE BELLOWS GLOBE VALVE (BL8C5Y)
Engineered for Zero-Leakage in Severe Service Conditions
Product Features & Applications
Purpose:
The BL8C5Y Dalian Type Bellows Globe Valve is designed for critical sealing applications in pipelines handling corrosive, toxic, or high-purity media. The bellows-sealed design eliminates external leakage by isolating the valve stem from the medium, making it ideal for chemical processing, petrochemical, energy, and HVAC systems.
Key Advantages:
- Leak-Tight Bellows Seal: Metal-to-metal or PTFE bellows ensure zero fugitive emissions, complying with strict environmental regulations.
- High-Pressure/Temperature Resistance: Rated for PN16-PN160 (1.6-16 MPa) and temperatures from -29°C to 425°C (-20°F to 800°F).
- Anti-Cavitation Design: Optional hardened trim minimizes erosion in steam or high-velocity fluid services.
- Compact & Lightweight: Forged body construction reduces weight while maintaining structural integrity.
Technical Specifications
| Parameter |
Details |
| Model |
BL8C5Y (Dalian Special Design) |
| Nominal Diameter |
DN15-DN50 (1/2"-2" NPS) |
| Nominal Pressure |
PN16-PN160 (1.6-16.0 MPa) |
| Temperature Range |
-29°C to 425°C (-20°F to 800°F) |
| Body Material |
Forged Carbon Steel (A105), Stainless Steel (304/316), Alloy Steel (F11/F22) |
| Bellows Material |
SS316L, Inconel® 625 (for high-temperature/corrosion resistance) |
| Trim Material |
Hardened SS (13Cr, 17-4PH), Stellited® Alloy |
| Connection |
RF/RTJ Flanged (ANSI B16.5, DIN 2543) |
| Design Standards |
GB/T 12235, ASME B16.34, API 602 |
| Suitable Media |
Water, Steam, Oil Products, Gas, Chemical Solutions |
Quality & Compliance
- Certifications:
- International: ISO 9001, API 600, CE/PED, ATEX (for explosive atmospheres).
- Fire Safety: API 607/6FA (Fire-Safe Certified).
- Testing:
- Shell/Seat Tests: Hydrostatic at 1.5x PN; bubble-tight leakage (Class VI per ANSI FCI 70-2).
- Cycle Testing: 50,000+ cycles without failure.
- Material Verification: PMI, UT, RT, and mechanical testing reports provided.
- Warranty: 24 months from shipment date.
Product Details
- Design Highlights:
- Modular Trim: Interchangeable seats/discs for maintenance flexibility.
- Live-Loaded Packing: Optional for non-bellows applications (e.g., low-emission services).
- Custom Options:
- Cryogenic Extension: For LN2 (-196°C) or LNG applications.
- High-Alloy Bellows: Hastelloy C-276, Titanium (for severe corrosion).
- Actuation: Pneumatic/electric actuators with digital positioners.
- Typical Applications:
- Chemical/Petrochemical: Acid lines, chlorine service, polymerization reactors.
- Power Generation: Turbine bypasses, feedwater control.
- Oil & Gas: FPSO topside piping, refinery process units.
- HVAC: District cooling/heating systems, chilled water loops.
- Why Choose Us?
- 30+ Years Expertise: Pioneers in high-pressure bellows valve technology.
- Fast Delivery: Standard orders in 15-30 days; urgent orders via air freight.
- Global Support: On-site commissioning, spare parts inventory in EU/US warehouses.
Contact Us Today for a custom quote, technical drawings, or third-party inspection arrangements!
Keywords: Bellows Globe Valve, Zero-Leakage Valve, High-Pressure Valve, Dalian Valve Manufacturer
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