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Trunnion Ball Valve
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Trunnion Ball Valve

We are a reliable manufacturer of high-quality trunnion ball valves in China. Our products are designed to meet the highest standards of quality and reliability. As a professional supplier, we are committed to providing our customers with the best products and services. Whether you're looking for a standard or customized trunnion ball valve, you can trust us to meet your needs. We take pride in our excellent after-sale service and timely delivery. Our experienced team is always ready to assist you with any inquiries or concerns you may have. We welcome both new and old customers to cooperate with us to create a better future. Rest assured that you can rely on us to be your trusted partner for all your trunnion ball valve needs.

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Product Description

Zhejiang Chengyuan trunnion ball valve Introduction

A "trunnion ball valve" is a type of ball valve in which the ball is supported and its movement direction is restricted by a bearing. It has the characteristics of a large ball diameter, strong pressure capacity, reliable sealing, and low operating torque, making it suitable for high pressure and large diameter pipelines. Trunnion ball valves are commonly used in industries such as petroleum, natural gas, chemical, and water treatment.

Zhejiang Chengyuan trunnion ball valve Parameter (Specification)

1. Material

A351 CF8M/CF8/CF3, A216 WCB, A352 LCB/LCC

2. Size

1/2''~10'' ( DN15~DN250)


ISO9001 & CE

4. Port

Full Port

5. Working Pressure


6. Connection Ends


7. Working Temp.


8. Suitable Medium

Water, Steam, Oil and natural gas etc.

9. Seal


10. Locking


11. Inspection & Testing

According to API598

Zhejiang Chengyuan trunnion ball valve Feature And Application

The fixed ball valve is a modern high-performance ball valve designed for long-distance transmission pipelines and general industrial pipelines. Its special design ensures strength, safety, and resistance to harsh environments, making it suitable for a wide range of corrosive and non-corrosive media.


Compared to floating ball valves, the fixed ball valve uses a design that passes the fluid pressure in front of the ball to the bearing force, preventing the ball from moving and reducing pressure on the seat. This results in a valve with lower torque, minimal seat deformation, stable sealing performance, and a longer service life. The fixed ball valve is suitable for use in high-pressure and large-diameter pipelines.


The valve has an advanced spring pre-seat assembly with self-tightening characteristics, enabling upstream sealing. It also has two seats that can be sealed in each direction, allowing for unrestricted installation and bi-directional flow. The fixed ball valve is typically installed horizontally.

Zhejiang Chengyuan trunnion ball valve Details

Zhejiang Chengyuan trunnion ball valve PROCESS flow

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