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    全焊接法兰连接球阀.jpg

    Fully Welded Flanged Trunnion Mounted Ball Valve

    √ Fully Welded One-Piece Body Eliminates Bolted Joint Leakage Risks.

    √ Heavy-Duty Flanged Ends Ensure Secure Pipeline Integration.

    √ Trunnion Mounted Ball Design Delivers Stable Sealing Under High Pressure.

    √ Zero External Leakage in Critical Oil and Gas Isolation Applications.

    √ Engineered for Large-Diameter Energy and Infrastructure Pipelines.

    √ Manufactured Under Strict Quality Control for Global Project Reliability.

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      Product Parameters

      Valve Type Fully Welded Trunnion-Mounted Ball Valve, Flanged Ends
      Size Range 2" – 48" (DN50 – DN1200), Larger sizes available upon request
      Pressure Rating Class 150 – 900, Higher pressure ratings available upon request
      Temperature Range Standard Soft Seat: -29°C to +200°C; Low Temperature Option: -46°C Available; Metal Seated Design: Up to +425°C
      Design Standards Manufactured in compliance with API 6D, ASME B16.34, ISO 17292
      Connection Type Flanged Ends (RF / RTJ)
      Port Design Full Bore / Reduced Bore
      Body Material ASTM A105, A350 LF2, A216 WCB, A352 LCB, A182 F304, A182 F316
      Seat Material PTFE, RPTFE, PEEK, Metal-Seated
      Operation Manual Lever, Worm Gear, Electric Actuator, Pneumatic Actuator, Hydraulic Actuator (Optional)
      Fire-Safe Design Designed to meet API 607 / API 6FA standards
      Automation Ready ISO 5211 mounting pad for actuator installation
      Brand SLVCN
      Key Features
      Product Description

      Key Features

      Fully Welded One-Piece Body

      Eliminates bolted body joints and prevents external leakage.

      Heavy-Duty Flanged Connection

      Ensures secure installation and easy integration into pipeline systems.

      Trunnion Mounted Ball Design

      Reduces operating torque and guarantees stable sealing under high pressure.

      Double Block and Bleed Structure

      Enhances safety during pipeline isolation and maintenance operations.

      Anti-Blowout Stem & Fire-Safe Design

      Protects against accidental stem ejection and fire-related failure.

      Engineered for Long-Term Pipeline Service

      Ideal for oil, gas, district heating and energy infrastructure systems.

      Product Details

      SLVCN Fully Welded Flanged Trunnion Ball Valve is engineered for high-pressure pipeline systems in Oil & Gas, petrochemical, district heating, and gas transmission applications.

       

      Featuring a fully welded one-piece body construction, it eliminates bolted joint leakage risks and enhances overall structural integrity. The heavy-duty flanged ends provide secure pipeline integration, while the trunnion mounted ball design reduces operating torque and ensures stable sealing performance under demanding conditions.

      Designed for long-term pipeline service in both buried and above-ground installations, this valve delivers reliable isolation in critical infrastructure systems. Body materials, seat materials, pressure ratings, sizes, and actuation options can be customized to meet specific project requirements.

      全焊接法兰连接球阀

      Why Choose Us

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      Decades of Expertise

      30+ years specializing in DBB, trunnion-mounted, forged & fully welded valves for high-temperature, high-pressure, and cryogenic service, trusted by projects worldwide.
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      Tailored Solutions

      Custom-designed valves based on process conditions and project specifications, ensuring reliable performance under demanding operating conditions.
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      Rigorous Quality Control

      ISO 9001-managed design, manufacturing, and testing in accordance with API 6D, ASME B16.34, and fire-safe standards.
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      Proven Reliability

      Every valve is fully tested and inspected, delivering zero-leakage, project-ready valves you can trust.
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      How We Ensure Quality & Reliability?

      Quality is built into every stage - from raw material to final testing.

      Material Verification
      01

      Material Verification
      Dimensional Inspection
      02

      Dimensional Inspection
      Ultrasonic Flaw Detector
      03

      Ultrasonic Flaw Detection
      Hydrostatic Pressure Testing
      04

      Hydrostatic Pressure Testing
      CNC Machining Centers
      05

      CNC Machining Centers
      Fully Automated Welding Equipment-new
      06

      Fully Automated Welding Equipment
      Cryogenic Testing Area
      07

      Cryogenic Testing Area
      Pressure Testing Equipment
      08

      Pressure Testing Equipment

      Certificate Display

      SLVCN operates under an ISO 9001 quality management system. Products are supplied with CE conformity, Mill Test Certificates (MTC), and Certificates of Origin as required.

      Valves are designed, manufactured, and tested in accordance with API 6D, ASME B16.34, API 607, and ISO 10497 fire-safe standards, ensuring reliable performance in high-pressure and extreme service conditions.

      CE-New

      CE Certificate

      ISO9001-New(1)

      ISO9001 Certificate

      certificate 2

      Certificate for Credit for Quality Service

      certificate 3

      Certificate of Observing Contract and Keeping Promise

      certificate-New

      Trademark Certificate

      0102030405

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