Precision-engineered through high-pressure forging, these ball valves feature a refined grain flow that ensures maximum structural integrity. Optimized for critical environments, they reliably sustain operating pressures up to 10,000 PSI and temperatures exceeding 538°C (1000°F). By strictly adhering to ASME B16.34 standards, the forging process increases tensile strength by approximately 30% compared to cast alternatives, providing superior fatigue resistance and zero-leakage performance under intense mechanical stress.
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Design Features
• API 6D pipeline valves engineered for ASME pressure ratings from Class 150 to 2500.
• Full-bore and reduced-bore configurations available across NPS sizes from 2” to 60”.
• Optional Double Block and Bleed (DBB) functionality verified by API 6D hydrostatic testing.
• Fire-safe certified according to the latest BS 6755, API 6FA, and API 607 standards.
• Versatile seat designs featuring Single Piston (SPE) or Double Piston (DPE) for bidirectional isolation.
• Sealing materials including RPTFE, PEEK, and Viton GLT to suit specific media and pressures.
• Seamless integration with ISO 5211 compliant pneumatic, hydraulic, or electric actuation.
• Integrated emergency secondary sealing via grease injection ports rated for full system pressure.
• Metal-to-metal sealing meeting ISO 5208 Rate A zero-leakage requirements for all ASME classes.
• Optional fully welded body construction compliant with ISO 15848-1 fugitive emission standards.
• Standardized with blow-out proof stems and antistatic devices ensuring electrical continuity < 10 ohms.
• Specialized executions for extreme Cryogenic (-196°C) or High-Temperature (+538°C)serviceconditions.
Floating Ball / Trunnion Mounted Ball
Forged ball valves are engineered in Floating and Trunnion Mounted configurations to meet specific API 6D operational requirements. The Floating Ball design utilizes upstream pressure to achieve a bubble-tight downstream seal, optimized for NPS 1/2″–6″ and ratings up to ASME Class 600. This seat-supported architecture provides a cost-effective, space-saving solution for bi-directional shut-off in process piping.
For heavy-duty service (NPS 2″–56″, Class 150–2500), the Trunnion Mounted design employs a fixed-ball, bearing-supported structure that reduces operating torque by 30%–45% compared to floating types. This ensures superior sealing integrity and structural stability under high-differential pressures in midstream and subsea environments. CARILO’s forged valves, machined from ASTM A105 or F316 with tolerances within ±0.01mm, undergo 100% API 598 pressure testing. By adhering to ISO 9001 standards, we extend MTBF by approximately 25% in high-cycle, critical-service applications.
The Number of Body Pieces- TWO/ THREE
Soft seated / Metal seated
The types of end connection - RF/RTJ/SW/BW/NPT
RF (Raised Face):
Engineered per ASME B16.5 with a standard 125-250 AARH serrated finish to optimize gasket compression. This flanged connection ensures secure sealing and precise alignment across ASME Class 150–2500 applications.
RTJ (Ring Type Joint):
Specialized for high-pressure service (Class 900 and above), utilizing ASME B16.20 metallic ring gaskets. The metal-to-metal interface provides superior sealing integrity under extreme thermal and mechanical stresses.
SW (Socket Weld):
Manufactured to ASME B16.11 for small-bore piping (NPS 2 and below). This configuration offers high joint strength and fatigue resistance, ideal for high-pressure process lines requiring leak-proof permanent joints.
BW (Butt Weld):
Designed according to ASME B16.25 for seamless pipeline integration. It ensures zero-leakage performance and is fully compatible with Radiographic Testing (RT) to verify weld quality in critical service.
NPT (National Pipe Thread):
Tapered thread connections per ASME B1.20.1 for rapid, cost-effective assembly. Primarily utilized in auxiliary utility systems and low-pressure applications requiring compact, threaded joints.
Different Design - DBB/ DIB-1/ DIB-2
View More About Forged Ball Valves
Please note that the final cost depends on the customized service you require, the specifications of the raw materials used, the relevant national laws, and the distance of transportation. Take the example of booking a tall container of products:
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Most Popular Questions
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Forged valves per ASME B16.34 feature a refined, void-free grain structure that maximizes tensile strength and fatigue resistance. They are engineered for high-pressure service up to 6,000 PSI, offering superior structural integrity compared to cast alternatives.
Floating designs (NPS 1/2" to 6") use line pressure for bubble-tight sealing in Class 600 applications. Trunnion valves (up to Class 2500) utilize a fixed-ball architecture to reduce operating torque by 30%, ideal for high-pressure, large-diameter pipelines.
2-piece valves minimize leak paths in high-pressure service. Conversely, 3-piece "swing-out" designs allow for in-line seat and seal replacement without disconnecting end caps, reducing maintenance downtime by 50% and optimizing Total Cost of Ownership (TCO).
Soft seats (PTFE/PEEK) provide ANSI Class VI sealing up to 200°C. For abrasive media or extreme temperatures exceeding 550°C (1022°F), Metal-Seated valves with Tungsten Carbide (TCC) coatings are mandatory to ensure high-cycle reliability and erosion resistance.
Per API 6D, DIB-1 uses dual DPE seats for redundant bidirectional sealing but requires an external relief valve. DIB-2 combines one SPE and one DPE seat to allow automatic internal cavity relief, eliminating the need for external relief piping.
For Class 900+ service, RTJ (ASME B16.20) provides a robust metal-to-metal seal. For permanent, zero-leakage integration, Butt Weld (BW) ends per ASME B16.25 are preferred, as they support Radiographic Testing (RT) to verify joint integrity.
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