Fully Welded Ball Valve Collection
- Zero-leakage welded body
- Fire-safe design certification
- High-pressure resistance
- Cryogenic temperature compatibility
- Double-block-and-bleed function
- Anti-corrosion coating
- ISO5211 mounting pad
- Emergency sealant injection
- Durable metal-to-metal seats
- Full-bore flow design
Main functions and technical parameters of the product
MeiDe Valve produces fully welded ball valve offers superior durability and leak-proof performance for high-pressure pipelines. Its one-piece welded body eliminates gasket failure risks, ideal for oil/gas transmission. Constructed with carbon steel and 304 stainless steel overlay on critical surfaces, it prevents corrosion and galling under extreme temperatures (-29°C to 200°C). Features include:
- API 607 Fire-Safe Design: Maintains sealing integrity post-650°C/30min fire test.
- Double-Piston Effect Seats: PMSS dual-seal technology (soft/hard combo) ensures zero leakage.
- Auto Cavity Relief: Prevents overpressure damage via self-venting at 1.33x rated pressure.
- NACE MR0175 Compliance: Resists Hâ‚‚S corrosion in sour environments.
- Low-Torque Operation: 40% reduced torque vs standard valves, with API 622 live-loaded packing.
- Certified to API 6D/ASME B16.34, it’s engineered for LNG terminals, refineries, and subsea applications.
| Size Range | 2″-48″(50mm-1200mm) | Body Material | CarbonSteel,StainlessSteel,Copper Alloy,alloy steel,etc |
| Temperature Range | -196 to 425 degree | Stem Material | Staniless Steel |
| Pressure Ratings | PN 2.5 to PN420,Class 150 to Class 2500,10K-20K | Shutoff Rating | Zero Leakage |
| TrimMaterial | CarbonSteel,StainlessSteel,CopperAlloy,alloy steel,etc | End connection | FLNG( RF, RTJ), BW, SW, NPT |
| Design Standard | API608,API6D,EN1983,ISO17292,GOST | Flange Standard | Â EN 1092-1,ASME B16.5,GOST 33259 |
| Testing Standard | API598,EN12266-1,ISO 5208 | Certifications | API6D,ISO 19001,API 607,API 6FA,CE,EAC,SIL3 |
| Face to Face | API6D,ISO5752,ASMEB16.10,EN558-1 | Fugitive Emissions | ISO 158484-1 |
| Operation | Wench,Worm Gear, Electric, Pneumatic,etc | Seat Material | PTFE,RPTFE,PCTFE,NYLON,DEVLON,PEEK,etc(SoftSeat)coating STL,TCC,NI55,NI60,etc(Metal Seat) |