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.

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.
01
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.
02
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.
03
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.
01
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.
02
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.
03
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.
01
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.
02
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.
03

INQUIRY NOW

For inquiries about our ball valve, check valve, api 6d ball valve, etc. or pricelist, please leave your email to us and we will be in touch within 24 hours.

Inquiry Now

New Products

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

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 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
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
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

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.
2023-10-16
The benefits of Ball Valve
Ball valves are essential components in the pipeline industry, providing several benefits over other types of valves. Ball valves are a type of quarter-turn valve that uses a hollow, perforated, and pivoting ball to control flow. The ball valve's mechanism allows for quick and efficient shutoff and flow control in a variety of environments, making them the go-to choice for many industrial applications.
2024-10-23
What Materials Are Commonly Used for Ball Valves?
Ball valves are essential components in various industrial and commercial applications, known for their ability to provide reliable shutoff and control of fluid flow.
2024-10-22
The advantages of Threaded Check Valve
Threaded check valves are commonly used in a wide range of industries due to their numerous advantages. These benefits make them a popular choice for fluid control systems in many applications. In this article, we will explore the advantages of threaded check valves and their importance.
2024-01-29
The main features of ball valves and how to choose them
Ball valve is a commonly used fluid control valve with the following main characteristics: simple and reliable, compact structure, light operation, good sealing performance, small fluid resistance, and wide application range.
2023-12-13
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)
2023-11-02
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.
2023-10-18
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.
2023-10-16
The benefits of Ball Valve
Ball valves are essential components in the pipeline industry, providing several benefits over other types of valves. Ball valves are a type of quarter-turn valve that uses a hollow, perforated, and pivoting ball to control flow. The ball valve's mechanism allows for quick and efficient shutoff and flow control in a variety of environments, making them the go-to choice for many industrial applications.
2024-10-23

01/07

About Us

Featured Products

INQUIRY NOW

New Products

Female Threaded Vertical Check Valve

Ductile Iron Threaded End Ball Check Valve

Threaded Spring Check Valve

Bronze Threaded Check Valve

Threaded Ball Check Valve

Threaded Swing Check Valve

API 6D Wafer Swing Check Valve

API 6D Flanged Swing Check Valve

News