Forged Steel Trunnion Ball Valve – High-Integrity Sealing, Automatic Cavity Relief

Product Details

Quantity

100
Availability (Lead Time)

4-6 Weeks
Product Location

China
Condition

New
OEM

Teji Valve Group Co., Ltd
Equipment code

CFIHOS-30000649

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Short Description

Forged steel trunnion-mounted ball valve with axial restraint, automatic cavity pressure relief, and high-integrity sealing. Designed for versatile, high-pressure applications in oil, gas, power, and chemical industries.

Description

Forged Steel Trunnion Ball Valve – High-Integrity Sealing, Automatic Cavity Relief

The Forged Steel Trunnion Ball Valve is a robust isolation valve designed for demanding industrial environments where reliable shutoff and pressure integrity are critical. Featuring a trunnion-mounted design, the ball is mechanically fixed by upper and lower support shafts, preventing axial displacement in the flow direction and enabling consistent sealing performance across all pressure levels.

Line pressure acts against the downstream seat, forcing it into firm contact with the ball surface and ensuring a tight, bubble-proof seal. An integral automatic cavity relief mechanism is standard in the design, which allows for the controlled venting of overpressure that may develop in the body cavity due to thermal expansion or trapped media—enhancing operational safety and compliance.

Crafted from high-quality forged steel, these valves are well-suited to a variety of process media and severe service conditions. Their design is flexible enough to accommodate a wide range of pipeline sizes and pressure ratings without specific limitations, making them a go-to solution for critical flow control in oil and gas transmission, chemical processing, water systems, and power generation.

Specifications:

– Valve Type: Forged Steel Trunnion-Mounted Ball Valve
– Design: Obturator supported by trunnion, preventing axial displacement
– Size Range: Available in a wide range of NPS sizes (customizable)
– Pressure Ratings: ASME Class 150 to Class 2500 (PN16 to PN420)
– End Connections: RF, RTJ, BW (per project specification)
– Body Construction: Two-piece or three-piece forged body
– Sealing Mechanism: Line-pressure assisted seat compression
– Seat Type: Soft or Metal Seated (as required)
– Cavity Relief: Automatic cavity pressure relief standard
– Operation: Manual, Gear, Electric, Pneumatic, or Hydraulic Actuators
– Materials: Forged Carbon Steel, Stainless Steel, Duplex, or per customer specification
– Fire Safe Design: API 607 / API 6FA (optional)
– Design & Manufacture: API 6D, ASME B16.34
– Face-to-Face: ASME B16.10
– Testing & Inspection: API 598 or per customer requirement
– Anti-Static Device: Optional for hazardous environments
– Blowout-Proof Stem: Ensures operational safety

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Technical Details

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