ON-OFF BALL VALVE SERIES

Product Range

• Size Range：1/2 ”～32”(DN15～DN800)

• Class Range：CL150-CL4500

• Applicable Temperture:-29℃~＋650℃ 

• Operation：Pneumatic，Electric

• Material:Carbon Steel, Stainless Steel,Alloy Steel Etc

• Valve design: Trunnion / floating type

   

  Product Standards

• Design：ASME B16.34、API608、API60D、GB/T12237、GB/T21385

• Face-to-Face：ASME B16.10、GB/T12221、API60D

• End Connection：ASME B16.5、ASME B16.25、HG/T20615、GB/T9113

• Test & Inspection：ASME B16.104、API598、GB/T13927、GB/T26480、JB/T9092

   

  Product Introduction

  The High-Pressure Hydrogenation ON-OFF Ball Valve is an on-off control valve. This ball valve adopts trunnion or floating O-type ball structure. The valve seat is precisely machined and lapped to match the ball, and achieves initial sealing by forming tight contact with the ball through spring loading—preventing the valve seat from bearing excessive pressure. Meanwhile, high-strength stem materials such as UNS NO7718 and ASTM A638 Grade 660 are used, enabling the valve to meet the requirements of high-pressure, high-temperature, and high-frequency operation conditions. It offers advantages including excellent resistance (to wear/corrosion), stable sealing performance, and a longer service life. It is widely used in high-temperature medium working conditions involving multiphase flows (liquids, gases) such as feedstock oil, hot high-pressure separator oil, lean amine solution, oil-gas + hydrogen, nitrogen, and recycle hydrogen.

   

  Basic Features

  Bidirectional Sealing

  It features a double-seat, bidirectional sealing, and full pressure difference standard design. When one sealing surface fails, the other can still effectively block the medium backflow in the pipeline to maintain the sealing function.

   

  Zero Leakage

  The sealing surfaces are made of cemented carbide or high-performance special metal hard facing materials, making them particularly suitable for working conditions involving high pressure, high temperature, and particle-containing media. They can meet the zero-leakage standards of API 598 and ASME B16.104 Class Ⅵ. Through high-precision processing equipment and multiple precision lapping technologies, the balls and valve seats can be fully interchangeable, avoiding the situation that the ball and valve seat can be fully interchangeable, avoiding the situation that one specific ball can only be paired with one specific valve seat for precision grinding.

  Stem Anti-Blowout Design

  A pressure-containing component safety-type stem anti-blowout design is adopted to prevent the stem from breaking away from the valve body due to abnormal internal pressure of the valve, accidental breakage, or extreme working conditions (such as fire), thereby avoiding medium leakage, equipment damage, and even safety accidents.

   

  Low Torque, Self-Cleaning, and Long Service Life

  The sealing pair is designed with a high-performance elastic compensation sealing structure, which can effectively absorb the thermal expansion deformation of materials at high temperatures, ensuring the stability and self-adjustability of the specific pressure of the sealing surface. The valve seat adopts a scraper structure, which automatically removes particles adhering to the ball surface during the valve opening and closing process to prevent scratches on the sealing surface. The elastic compensation structure and scraper structure enable the valve to operate under stably low torque during long-term use.

   

  Stem Dual-Guide Stable Design

  The stem transmission adopts a dual-guide structure design, which improves the stable operation performance of the valve.

   

  Standard Drive Train

  The strength of the drive train and the bolting strength of the drive train both comply with the specifications of API and ASME standards. This prevents transmission failure caused by material fatigue or corrosion, ensures reliable opening and closing of the valve under harsh working conditions, and extends the service life of the valve.