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With our excellent management, strong technical capability and strict quality control system, we continue to provide our clients with reliable quality, reasonable prices and excellent services. We aim at becoming one of your most reliable partners and earning your satisfaction for Oilfield NPT Threaded Ball Valve,Oilfield Female Threaded Ball Valve, Welcome your browsing and any your inquires,sincerely hope we are able to have chance to cooperate with you and we will build-up extensive effectively company marriage along with you.
Oilfield NPT Threaded Ball Valve, The credibility is the priority, and the service is the vitality. We promise we now have the ability to supply excellent quality and reasonable price products and solutions for customers. With us, your safety is guaranteed.

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    API 6D Floating Ball Valve

    Yongyuan is the professional API 6D Floating Ball Valve manufacturer in China, with ISO 9001 certificate. We have been specialized in oil and gas fields for 25 years. Most of our ball valves shipped to American markets. The quality meet ASME B16.34 B16.10 B16.5 and BS5351. Carbon Steel WCB or Stainless Steel can be chosen for valve body and adapter on request. There’re three different working class 150#, 300# and 600# for selection. All valves passed through pressure test before dispatch.
  • API 6D 3 PIECE Trunnion Ball Valve

    API 6D 3 PIECE Trunnion Ball Valve

    With 50years history, Yongyuan works as a reliable API 6D 3 PIECE Trunnion Ball Valve provider from China. The API 6D 3 PIECE trunnion ball valve complies with API 6D, ASME 16.34, API 608 and other relevant ASTM specifications. Valve body and adapter material is forged steel A105, fire safe graphite rings is used to protect against external leakage. Every valve is manufactured to comply with NACE standards. It’s suitable for pipeline where zero leakage positive shutoff is critical.
  • Threaded Ball Valve Bolted Body

    Threaded Ball Valve Bolted Body

    With 30 years manufacturing experience, Yongyuan provides durable threaded ball valve bolted body from China. These valves are produced in conformance to oilfield industry requirements. Two-piece bolted design with a flanged body and adapter, providing solid connection to eliminate risk of end adapter blowout. Ball includes pressure equalization hole to prevent trapped pressure in the body cavity.
  • Grooved Ball Valve Reduced Port

    Grooved Ball Valve Reduced Port

    Yongyuan works as the reliable grooved ball valve reduced port manufacturer in China. The end-entry valve designed for WOG services, normally used in oil and gas fields. It has a blow-out proof stem design, with low operating torque and high CV. Grooved end dimensions conform to AWWA C606. The working pressure is 1000psi for 2”-4” and 1500psi for 6”.
  • Bronze Threaded Check Valve

    Bronze Threaded Check Valve

    Find a huge selection of Bronze Threaded Check Valve from China at Yongyuan.
  • Female NPT Ball Check Valve

    Female NPT Ball Check Valve

    Yongyuan Female NPT ball check valve are provided from China directly. All these ball check valves conform to NACE MR0175 requirements. Body materials are available in ductile iron, carbon steel and stainless steel. They’re available in sizes 1” & 2”, pressure from 2000psi to 5000psi.
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  • Precautions for Using Ball Valve

    As a key component in the fluid control system, the core of the ball valve lies in its spherical opening and closing element, which accurately controls the flow and cutoff of the fluid through rotation.

  • What is the difference between trunnion mounted ball valve and floating ball valve?

    The world of valves can be complex, especially for those who are not familiar with the various valve types. Two common ball valve types are the trunnion ball valve and the floating ball valve. While both perform the same function of regulating flow, there are differences in their design and functionality that make them suitable for specific applications.

  • What is the problem with the ball valve?

    Ball valves are widely used in various industries due to their durability and ability to provide reliable shutoff.

  • How Check Valves Work in Piping Systems

    Check valves are essential components in piping systems, designed to allow fluid to flow in one direction while preventing backflow.

  • What Makes a High-Quality Ball Valve Essential for Industrial Fluid Control?

    In industrial systems where the precise control of liquids, gases, and slurries is critical, the ball valve stands as a cornerstone of reliable operation. From oil and gas pipelines to chemical processing plants, water treatment facilities, and manufacturing lines, ball valves regulate flow with unmatched efficiency, durability, and precision. Unlike other valve types, their design—featuring a hollow, perforated ball that rotates to open or close—allows for quick shutoff, minimal pressure drop, and resistance to leakage, making them indispensable in high-stakes environments.

  • What Makes an API 6D Ball Valve Essential for Modern Pipeline Systems?

    ​The API 6D Ball Valve plays a critical role in today’s oil, gas, and pipeline transportation industries, where safety, reliability, and compliance are non-negotiable. Designed according to the stringent requirements of the American Petroleum Institute, API 6D ball valves are widely recognized for their robust construction, tight sealing performance, and suitability for long-distance pipeline systems. Manufacturers such as ZHEJIANG YONGYUAN VALVE CO.,LTD. have continuously optimized these valves to meet global engineering demands while maintaining cost efficiency and long service life.

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