3D panoramic view of the factory

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Annual sales volume of USD 10,000,000+

30 years of experience in valve industry

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Tianjin Union Valve Co.,Ltd. is a professional valve manufacturer with a registered capital of 10 million yuan. Due to accurate market positioning, excellent product quality, standardized internal management, a new Chinese modern enterprise has now taken shape and enjoys a good reputation in China valve and casting industry. Our company has modern factories, manufacturing processing and testing equipment, strong technical force and over 200 employees including skilled assembly-line workers and experienced technical staffs in valve field. Now our company has passed the ISO9001: 2008 quality management system certification and CE certification.

We not only manufacture a variety of standard valves, but also design and produce valves according to customer requirements. Our main products include: flange center butterfly valve, eccentric butterfly valve, metal butterfly valve, gate valve, ball valve, check valve, filter, globe valve, soft joints and so on. These products are widely used in petroleum, chemical, urban water supply and drainage, paper, electronics, shipbuilding, medicine, construction, food and other industries. Tianjin Union Valve Co., Ltd enjoys a good fame in wide customers by virtue of its good product quality and perfect service system. Now our products sell well in Europe and America, Southeast Asia, the Middle East, Australia, North Africa, South Korea, Hong Kong,Taiwan and dozens of countries and regions.

Our company’s purpose is: professional and technical support, perfect after-sales service!

Was established in
Production capacity is over
Covering an area of

Industries That We Serve

As one of the best valve factories in China, IMGV has been serving various market sectors where pipes and valves play an integral role. These industries demand high-quality valves which, in turn, increases the productivity of their industrial plants.

● Wastewater Treatment、Urban water supply

● Petroleum Refinery Industry

● Chemical Refinery Industry

● Power Generation Industry

● Pipeline Transportation Industry

Quality Assurance Testing We Use

We know that part of being globally competitive is providing continuous quality control and oversight. Our supervisors and managers are always on the lookout for small problems so that our level of quality is maintained from start to finish. Our on-site plant is equipped with testing machines that will ensure that every valve we release is the best it can be.

● Material testing machines

● Hardness testing machines

● Thickness gauging machines

● Water pressure air pressure testing

Our Certificate

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Customer Satisfaction

Our manufacturing plant works round the clock to provide its customers forged and cast steel valves which can be customized to the preferences of the clients. We take pride in being able to meet production deadlines and provide our clients with what they need through the efficient production chain. Our technicians are experts in their fields and are committed to delivering the products in the allotted delivery schedules. Our focus is on customer satisfaction and we aim to deliver our products according to the specifications provided to us by our customers. Our employees understand that time is important. When we commit to a certain timeframe, rest assured that this would be done so.
Check out our customer testimonials below:

Because of Union excellent Job, help us get many project orders for water supply & drainage system. They are very professional as a valve factory. We always reply on their help.


We cooperate with Union for about 6 years, They helped us enlarged our Market. Our order amount more than 5 million dollar per year now. Union very stable for the valve quality and delivery time which is very important to us.


First cooperation since year 2008, Union offer us butterfly valve parts, and teach us how to assembling the whole valve, because their help and cooperation, Now we are a leading factory in local. They also improve their valve quality, package and other items time by time, which is very pleasant for us.


Union price is very competitive compare to other suppliers, base on the quality they supplied. They always give us best solution for some projects, such as the valve type, material and pressure the actual medium use, how to select the electric /pneumatic actuator, how can reduce the cost and so on, very Lucky for us to have Union as our supplier.