
Tianjin Baili Ertong Machinery designs and manufactures valve electric actuators, backed by decades of in-house testing and advanced machining capabilities.
Tianjin Baili Ertong Machinery Co., Ltd. manufactures valve electric actuators for a wide range of piping systems, serving demanding industrial and municipal applications. The company has a long track record in actuator design, manufacturing, and testing, with products used across petrochemical, metallurgy, power generation, military, water and sewage treatment, civil gas, light industry, and food sectors.
With roots as the former Tianjin Second General Machinery Factory, the company began developing and producing valve electric actuators in 1964 and is recognized for early achievements in China’s actuator industry. It has introduced U.S. Limitorque technology and has participated in proposing and drafting national standards for valve electric actuators, contributing to valve selection theory.
Manufacturing capabilities include advanced equipment and processes such as housing machining centres, CNC worm whirling machines, CNC gear machines, and vacuum carburising heat treatment. A dedicated actuator laboratory has been confirmed as a Tianjin technical supervision station for product quality supervision and inspection. Quality management is supported by ISO 9001 certification, and the “TET” and “天二通” trademarks are recognized as famous in Tianjin.

Established in Tianjin as the foundation of today’s actuator manufacturing business.
Began development and production of valve electric actuators; produced an early electric actuator in China.
The company introduced U.S. Limitorque technology and took a leading role in proposing and drafting national standards for valve electric actuators, while contributing to the improvement of valve selection theory.
An in-house valve actuator laboratory has been confirmed as Tianjin Technical Supervision 57th Station, supporting product quality supervision and inspection for valve actuator products.
The company is the sole trademark owner of “TET”, “天二通”, and “天二通TET”, and has not authorized any other organization or individual to use its registered trademarks or manufacture products outside the company.
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