AsalAra Fully Welded Trunnion-Mounted Ball Valve
A fully welded, maintenance-free trunnion-mounted ball valve for buried and above-ground service in pipeline and transmission systems.
The AsalAra Full Welded Ball Valve is engineered for long-term durability and zero leakage in high-integrity gas and liquid pipeline applications. The all-welded body design eliminates body gaskets and potential leak paths, significantly reducing fugitive emissions and maintenance requirements. Designed to meet or exceed the requirements of API 6D, this valve is ideal for natural gas transmission, oil and condensate lines, and compressor station isolation. Its compact footprint, lightweight construction, and permanently sealed body offer maximum safety and operational performance over decades of service life.
AsalAra’s fully welded design can be customized with buried extensions, gearboxes, or actuators to suit specific site conditions and automation needs.
Why AsalAra?
AsalAra’s Fully Welded Ball Valves offer leak-proof reliability, zero-maintenance operation, and long-term value for critical energy and infrastructure applications. Engineered in accordance with the highest global standards and built for harsh environments, AsalAra is your trusted partner in flow integrity.
Size Range
NPS (inch)
DN (mm)
2” – 56”
DN 50 – DN 1400
Pressure Class
Standard Rating
ASME
Class 150 – 1500
API
Up to API 2000 psi
Materials
- Body: Carbon steel (A105, A350 LF2, A216 WCB), stainless steel (316, 304), Duplex, Inconel on request
- Ball: ENP coated or tungsten carbide coated carbon steel or stainless
- Seats: PTFE, RPTFE, PEEK, Devlon®, or metal-seated (optional)
- Stem/Trims: Corrosion-resistant alloy steels with anti-blowout design
- Seals: Elastomeric seals or graphite packing per service conditions
Standard Connections
- End Types: Butt-weld (B16.25), Flanged (RF/RTJ per B16.5/B16.47), or Custom ends
- Compliance: API 6D, ISO 14313, ASME B31.3, B31.4, B31.8, NACE MR0175
Product Line
AsalAra FWB Series – Fully Welded Trunnion-Mounted Pipeline Ball Valves
Details
- Design Standard: API 6D, ISO 14313
- Face-to-Face Dimensions: API 6D or customer-specific
- Temperature Range: –46°C to +200°C (standard), cryogenic or high-temp options available
- Testing: API 598, ISO 5208 hydrostatic and pneumatic testing
- Fire Safe: Tested to API 6FA, ISO 10497
- Optional Features: Emergency seat sealant injection, vent/bleed/test ports, buried service design, position indicators
- Automation: Available with electric, pneumatic, or hydraulic actuators (including ESD systems)
Feature
Benefit
Fully Welded Body
No body gasket = zero leakage and long-term integrity
Trunnion-Mounted Ball
Lower torque, reduced wear, suitable for high-pressure
Anti-Blowout Stem
Enhanced safety during service or failure
Fire-Safe Design
API 6FA certified, with secondary metal sealing under fire
Double Block & Bleed
Independent sealing on both seats with venting cavity
Corrosion Protection
External epoxy coating or custom coatings for buried service
Extended Bonnet/Stem Options
Perfect for buried installation or insulation environments
Maintenance-Free Design
Reduced total cost of ownership
Low Fugitive Emissions
ISO 15848 compliant stem sealing systems
- Natural gas transmission lines
- Crude oil and liquid hydrocarbons pipelines
- Compressor station isolation
- Metering stations
- Underground buried valve systems
- Urban pipeline infrastructure