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About us

Over 20 years rich experiences in casting valve industry.

A high-tech enterprise which is integrated with valve design, R&D, processing, casting, manufacturing, marketing, sales and after-sale service.

Have TS certificate of “Production License of Special Equipment People’s Republic of China”, ISO9001:2015, ISO14001:2015, ISO45001:2018 and other certifications.

The factory covers an area of 30,000 square meters with modern standard workshops.

More than 100 sets of high precision CNC machines, machining centers, various machining and processing equipment, full set of advanced testing & inspection equipment and instruments.

Annual output 12,000 tons of valves.

Major manufacturing base of large size butterfly valves from DN 50 to 4500 mm.

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Streamlined Disc Design

Water transmission pipelines under various working conditions often have very high unstable pressure, which requires the butterfly valve to withstand the destructive force caused by pressure fluctuations to ensure safe operation. There are usually two solutions: one is to use a robust disc, which can resist these unstable pressures when the valve is opened and closed; the other is to design the shape of the valve disc and the internal contour of the valve body to conform to the flow characteristics of the fluid, so that the pressure loss can be minimized when the valve is fully open to ensure efficient and energy-saving operation.


Good Fit of Precision Parts

The workshop is equipped with many CNC lathes, machining centers, gantry processing centers and other intelligent equipment. It not only greatly improves labor productivity and reduces manufacturing cost, but also has the following characteristics:
▪ A high degree of repeatability and consistency product quality, a very low unqualified rate.
▪ The products have high precision. All kinds of high-precision guidance, positioning, feeding, adjustment, detection, vision systems or components are adopted on the machine, which can ensure the high precision of product assembly and production.


Highly Efficient Energy Transfer

The valve disc and stem use a reliable and firm polygonal connection, which will not shake during operation and can transmit more energy.
In order for the driving torque to be reliably transmitted to the valve disc, the connection between the valve disc and the valve stem needs to be reliable and firm. We adopted this reliable polygonal valve shaft connection method to ensure reliable torque transmission and at the same time to ensure zero clearance between the valve disc and stem.


Suitable for Various Working Conditions

Advanced valve spraying technology enables the valve to be well protected in any working conditions.
The valve surface is treated by sand blasting process, and then by plastic spraying or painting process according to the valve size.


High Quality and Easy to Maintain

The seals and bearings of TVG Butterfly Valve can be used safely for many years and are easy to maintain. TVG Valve has established a new standard in this field.
Plasma arc welding is used to heat and connect the surface material and the base material to the metal.


One Product Covers All Specifications

As the most common used valves, butterfly valves can be used in many applications. TVG butterfly valve is the best choice: complete specifications, wide application range, and can be used in indoor, pipe network and other working conditions.