- Home
- >
- Products >
- Industrial Valve >
- Welded/Flanged Ball Valve
Welded Trunnion Ball Valve
Material :Carbon Steel, Stainless Steel 304 or 316L
Size : 1/2″– 60″ (DN 15 – DN1500)
Connection : Welded、Flanged
100% tested and inspected
A fully welded JIANEN API 6D trunnion mounted ball valve ensures permanent, leak-tight isolation in critical high-pressure and high-temperature pipelines. Its forged, one-piece welded body provides ultimate integrity against stress, movement, and corrosion, requiring zero maintenance, and is CE certified to meet essential health and safety requirements.
Open, its full bore design minimizes pressure drop for maximum flow. Closed, it ensures leak-tight shut-off with pressure-energized sealing and automatic cavity overpressure protection. An optional fire safe API 607 design provides ultimate containment security.
JIANEN valves are built for safety, delivering critical isolation in the most hazardous operations—from high-pressure transmission lines to offshore platforms—where failure is not an option.
|
Name |
Welded Trunnion Ball Valve |
|
|
Material |
Body/Ball/Stem: Carbon Steel, Low-Temp Carbon Steel, Stainless Steel (e.g., 304/316)
Seat Seal: Reinforced PTFE, Metal Seat (for high temp)
|
|
|
Size |
NPS 1/2″ – 60″ (DN 15 – 1500) |
|
|
Seal |
|
|
|
Surface |
Internal & external anti-corrosion coating; Flange face/weld bevel machined to standard |
|
|
Typical Operating Pressure |
|
|
|
Applicable Temperature Range |
Standard: -29°C to +121°C
Low-Temp: Down to -196°CHigh-Temp: Up to +200°C or above (depends on seat material)
|
|
|
Way of Connection |
Welded 、Flanged |
|
|
Standards |
API 6D, ASME B16.34, CE,etc. |
|
|
Package |
Body painted, ends protected with caps, packed in a wooden case |
How the Dual-Seal Design of Welded/Flanged Ball Valves Guarantees Zero Leakage
Key Advantage: JIANEN Welded/Flanged Ball Valves achieve absolute sealing in high-pressure, demanding, and maintenance-free services through dual sealing at both the body and stem.
Sealing Principle:
Zero Body Leakage: The monolithic welded body eliminates potential leak paths inherent in bolted connections.
Zero Stem Leakage: Multiple stem seals (e.g., O-rings and packing) prevent external fugitive emissions along the stem.
Primary Applications: Natural gas transmission pipelines, buried maintenance-free networks, and chemical process lines requiring zero fugitive emissions of hazardous media.