Introduction
The Forged Steel Trunnion Ball Valve is a ball valve consisting of a forged steel valve body and a fixed support shaft positioning ball. The rotation of the ball controls the flow of media and is mainly used in industrial pipelines for on/off control of gas or liquid.
Applications
Upstream Oil and Gas Extraction
Forged Steel Trunnion Ball Valve is used in wellhead equipment and gathering pipelines for segmented isolation and on/off control of crude oil, natural gas, or associated media. It plays a fundamental role in flow direction management during produced material collection, wellhead maintenance, and pressure management.
Midstream and Downstream Oil and Gas Transportation
In long-distance pipelines, stations, and storage and transportation systems, this valve is used for switching main lines and distribution lines. By physically isolating pipeline sections, it enables pipeline maintenance, pressure segmentation, and media switching.
Fine Chemicals and Synthesis Processes
In continuous reaction, distillation, or transportation units, this valve is used for switching material inlet and outlet paths and isolating process sections. By controlling the on/off of different reactants or process media, it ensures the sequential execution of the process.
Power Plant Fuel and Steam Networks
This valve is used for media switching in gas transportation, liquid fuel supply, and steam distribution networks. By isolating local pipelines, it enables equipment start-up and shutdown, system switching, and maintenance operations.
Industrial Gas Supply System
In pipelines supplying gases such as compressed air, nitrogen, and hydrogen, this valve is used for gas source switching, zone control, and pipeline isolation to meet the independent gas supply needs of different workstations or devices.
ODM/OEM Services
Materials
Body Material: A105, F316, F51
Ball Material: 13Cr, F316, Inconel
Stem Material: 410, 17-4PH
Seat Material: PTFE, RPTFE, PEEK, Hard Carbide
Dimensions and Connections
Nominal Diameter: 2"–48"
Pressure Rating: Class 150–2500
Interface Dimensions: ASME B16.10 specified grade
Flange Ends: RF/FF/RTJ
Welded End Beveling Dimensions: ASME B16.25
Internal Structure
Two-piece or three-piece structure
Metal seal or soft seal
DBB / DIB-1 / DIB-2 Seat structure, full bore or reduced bore, spherical chrome/nickel/carbide coating
Actuation method
Handle, worm gear box, pneumatic actuator, electric actuator, hydraulic actuator, pneumatic-hydraulic combination actuator, actuator torque and failure mode configuration
Functional modules
Emergency grease injection device, cryogenic extended valve cover, self-relief valve seat, fireproof structure, anti-static path, anti-blowout valve stem structure
Manufacturing Standards:
-Design: API 6D, API 608, ISO 14313, ISO 17292
-Pressure-Temperature Rating: ASME B16.34
-Face to Face Dimension: ASME B16.10
-Flanged Ends: ASME B16.5 (UP TO 24")
ASME B16.47(ABOVE 26")
-Butt Weld Ends: ASME B16.25
-Pressure Test: API 598, API 6D
Design Features:
-Two-piece and three-piece split body designs
-Description: Bolted bonnet body, Side entry, Trunnion mounted ball, Fire safe, Anti-static, and anti-blowout stem design
Emergency injection
Self-relieving seat effect function
Seat function DBB. DIB-1. DIB-2
Soft sealing and metal to metal sealing
Metal to metal design
-Connection: Flange (RF. FF. RTJ) or Butt Weld (BW)
Operation:
-Manual (Lever or Gearbox)
-Actuator (Motor, Pneumatic, Hydraulic, Pneu-Hydraulic, Gas over Oil)
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