Forged Fully Welded Ball Valve – Zero-Leakage Welded Body, Class 150–2500

Product Details

Quantity

100
Availability (Lead Time)

4-6 Weeks
Product Location

China
Condition
OEM

Teji Valve Group Co., Ltd
Equipment code

CFIHOS-30000649

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Short Description

TEJI’s fully welded forged ball valve features a bolt-free construction for zero leakage, full-bore flow, and robust sealing. Designed per API 6D/ISO 14313 standards, with emergency sealant injection, DBB/DIB capabilities, and corrosion resistance for buried pipelines.

Description

Forged Fully Welded Ball Valve – Zero-Leakage Welded Body, Class 150–2500

The Forging Fully Welded Ball Valve by TEJI is engineered for demanding pipeline applications requiring maximum structural integrity and zero external leakage. Constructed entirely from forged materials, the valve body is welded—eliminating the need for bolts and gaskets—thus minimizing leakage points and maintenance demands. This robust design is ideal for underground installations and high-pressure oil and gas pipeline networks.

Available in both spherical (single weld seam) and cylindrical (dual weld seam) configurations, these valves provide mechanical reliability and consistent wall thickness, free from casting defects such as shrinkage cavities, sand holes, or pinholes. Designed in compliance with ISO 14313 and API 6D, TEJI’s welded ball valves incorporate full bore flow for minimal pressure drop and low operating torque.

The valve is equipped with advanced features such as emergency sealant injection for leak containment, cavity pressure self-relief for overpressure protection, and low-emission packing for reduced environmental impact. Enhanced safety is provided through fire-safe, anti-static, and blowout-proof stem designs, while stainless steel overlay and extended bonnet options improve corrosion resistance and durability.

These valves support advanced sealing configurations including Double Block & Bleed (DBB), DIB-1, and DIB-2, making them suitable for high-integrity pipeline shutdowns. With a wide range of body materials and actuation methods available, TEJI’s forged fully welded valves deliver consistent performance in aggressive and critical environments.

Specifications:

– Valve Type: Forged Fully Welded Trunnion Ball Valve
– Body Type: Spherical (Single Weld Seam) / Cylindrical (Dual Weld Seam)
– Size Range: As required (customizable per application)
– Pressure Class: ASME Class 150 to 2500
– Temperature Range: -29°C to +180°C
– End Connections: BW (Butt Weld), RTJ, or customized per standard
– Bore Type: Full Bore (Zero Flow Resistance)
– Sealing Mechanism: Trunnion-mounted ball, resilient or metal-to-metal seat

– Body & Trim Materials:
– A105, F304, F316, F304L, F316L, F321, F51, LF2, and others
– Optional Stainless Steel Overlay on seat pockets and gasket sealing areas

– Design & Compliance Standards:
– API 6D
– ISO 14313
– API 607 / API 6FA (Fire Safe Design)
– NACE MR0175 / MR0103 (H2S Service)
– Low Fugitive Emission Packing (ISO 15848 compliant)

– Functional Features:
– Emergency Sealant Injection
– Automatic Cavity Pressure Relief
– Double Block & Bleed (DBB), DIB-1, DIB-2
– Fire-Safe, Anti-Static, Blowout-Proof Stem
– Low Operating Torque
– Optional Extended Bonnet for thermal protection

– Operation Methods:
– Manual (Lever or Gear)
– Electric Actuator
– Pneumatic Actuator
– Hydraulic Actuator

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Technical Details

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