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China Ball Valve Manufacturers
China API 6D Ball Valve Factory
API 6D Swing Check Valve Manufacturers
  • about us

About Us

Our factory is a leading valve manufacturers and suppliers with over 50 years' experience. Our valves are widely used in the chemical, pharmaceutical and water treatment industries, especially in oilfields. As the council members of China Valve Association, we’re designated as one of the best chemical equipment suppliers. In 1998 we started export business, our main products are ball valves, check valves and api 6d ball valve. Now most of them ship to USA directly.

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Featured Products

  • 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.

  • API 6D 2 PIECE Trunnion Ball Valve

    API 6D 2 PIECE Trunnion Ball Valve

    As the professional Chinese manufacturer, Yongyuan would like to provide API 6D 2 PIECE trunnion ball valve, in strict accordance with ASTM, API and other standards. Each valve has been pressure-tested before shipment to meet API requirements. Positive stem retention is achieved within the valve body. They’re used in transmission pipelines, terminals and storage of oil and gas fields.

  • API 6D Floating Ball Valve

    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.

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New Products

Female Threaded Vertical Check Valve

Female Threaded Vertical Check Valve

Yongyuan is a leading China Female Threaded Vertical Check Valve manufacturers, suppliers and exporter.

Ductile Iron Threaded End Ball Check Valve

Ductile Iron Threaded End Ball Check Valve

As the professional manufacturers, Yongyuan would like to provide you high quality Ductile Iron Threaded End Ball Check Valve. And we will offer you the best after-sale service and timely delivery.

Threaded Spring Check Valve

Threaded Spring Check Valve

As the professional manufacturers, Yongyuan would like to provide you Threaded Spring Check Valve. And we will offer you the best after-sale service and timely delivery.

Bronze Threaded Check Valve

Bronze Threaded Check Valve

Find a huge selection of Bronze Threaded Check Valve from China at Yongyuan.

Threaded Ball Check Valve

Threaded Ball Check Valve

Yongyuan can supply threaded ball check valve directly from China, with high quality and competitive price. They’re available in sizes 1” & 2”, pressure from 2000psi to 5000psi. Body materials are available in ductile iron, carbon steel and stainless steel. All of our ball check valves conform to NACE MR0175 requirements. We test every valve to API 598 requirements and maintain material traceability.

Threaded Swing Check Valve

Threaded Swing Check Valve

Threaded swing check valves are main products made by Yongyuan in China. These valves are designed to prevent backflow of liquid or gas in pipeline. Materials of construction conform to NACE MR0175. Solid stainless steel clapper and hanger reduce the need for separate pins and rollers. They’re available in sizes 1” to 4”, pressure from 2000psi to 5000psi. NPT threaded ends are on both sides.

API 6D Wafer Swing Check Valve

API 6D Wafer Swing Check Valve

Chinese manufacturer Yongyuan provides API 6D wafer swing check valve for oil and gas fields. Carbon steel ASTM A216 WCB is chosen for body material. There’re three different working class 150#, 300# and 600# for selection, size ranges from 2” to 12”. The valves are designed to full port bore for maxim flow and less clogging.

API 6D Flanged Swing Check Valve

API 6D Flanged Swing Check Valve

Yongyuan is the professional API 6D flanged swing check valve manufacturer in China. All valves passed through pressure test before dispatch. Most of our check valves shipped to North American markets. The working pressure covers class 150#, 300# and 600#. Carbon steel WCB or LCC can be chosen for valve body on request. Size ranges from 2” to 12”. These valves are widely used in oil and gas industry.

News

  • What is the purpose of the check valve?

    One is to prevent the backflow of the medium, the other is to prevent the reverse phenomenon of the stop pump and the motor, and the third is to prevent the leakage of the container medium.

  • Classification of check valves.

    Classification of material
    1. Cast iron check valve
    2. Brass check valve
    3. Stainless steel check valve
    4. Carbon steel check valve
    5. Forged steel check valve

  • Working principle of ball valve.

    The opening and closing part of the ball valve is a ball with a circular channel, rotating around the axis perpendicular to the channel, the ball rotates with the stem to achieve the purpose of opening...

  • Ball valve features

    The sealing ring is made of alloy steel surfacing, so the hard-sealed ball valve will not cause much wear when opening and closing. (Its hardness coefficient is 65-70)

  • Ball valve basic information

    The ball valve came out in the 1950s. With the rapid development of science and technology, the continuous improvement of production technology and product structure, in just 40 years, it has rapidly developed into a major valve type. In Western industrially developed countries, the use of ball valves is increasing year by year.

  • Threaded Check Valve Provides Reliable Flow Control in Gas and Liquid Applications

    Threaded check valves are used extensively in applications where the flow of gas or liquid needs to be controlled and monitored.

  • Selection of chemical valves

    Most of the media in chemical production equipment are highly toxic, flammable, explosive and highly corrosive. The working conditions are complex and harsh, and the operating temperature and pressure are high. Once the valve fails, the mild one will cause the medium to leak, and the severe one will cause the device to shut down Stop production, and even cause vicious accidents. Therefore, scientific and reasonable selection of valves can not only reduce the construction cost of the device, but also ensure the safe operation of production.

  • Flowtech China (Shanghai) 2023, June 5-7 at NECC Welcome to our stand 3.1 H224

    Flowtech China (Shanghai) aims to seamless connect between the production and demand ends of pump/pipe/valve.

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