

The pneumatic cast iron gate valve is a valve driven by compressed air. Its sealing mechanism when closed is unique. When the valve closes, the sealing surface relies solely on the pressure of the medium to achieve a seal. The medium pressure pushes the gate plate’s sealing surface against the valve seat on the opposite side, ensuring an effective seal, which is known as self-sealing.
In contrast, most traditional gate valves use forced sealing. Specifically, when these valves close, external force is required to press the gate plate tightly against the valve seat to ensure a tight contact between the sealing surfaces, thereby guaranteeing a reliable seal.
The self-sealing design of the pneumatic cast iron gate valve offers higher reliability and durability in many applications, particularly where the medium pressure is high or frequent valve operations are needed. This technology reduces reliance on external force, lowering mechanical wear and maintenance costs.

The pneumatic gate valve features reliable performance, easy operation switching, and convenient maintenance, making it widely used in industries such as petroleum, chemical, and marine transportation for controlling various types of media.
The pneumatic gate valve is equipped with both a pneumatic actuator and a manual control mechanism.
The actuator adopts a dual-cylinder structure, which doubles the lifting force compared to single-cylinder pneumatic gate valves.
It solves the problem of valve wedges getting stuck inside the valve body, a common issue with single-cylinder pneumatic gate valves.
It includes a buffering mechanism that effectively reduces wear on the sealing surfaces of both the valve plate and valve body caused by piston impact during valve closure. This also helps prevent the gate plate from jamming
We can design and develop according to the needs of our customers to meet the requirements of different clients.
The pneumatic gate valve features reliable performance, easy operation switching, and convenient maintenance, making it widely used in industries such as petroleum, chemical, and marine transportation for controlling various types of media.
The pneumatic gate valve is equipped with both a pneumatic actuator and a manual control mechanism.
The actuator adopts a dual-cylinder structure, which doubles the lifting force compared to single-cylinder pneumatic gate valves.
It solves the problem of valve wedges getting stuck inside the valve body, a common issue with single-cylinder pneumatic gate valves.
It includes a buffering mechanism that effectively reduces wear on the sealing surfaces of both the valve plate and valve body caused by piston impact during valve closure. This also helps prevent the gate plate from jamming
Vatten Valve Group, a globally renowned industrial automation valve enterprise originating from Saarland, Germany, specializes in the research, development, and manufacturing of core products such as automatic control ball valves, butterfly valves, and regulating valves. Leveraging our exceptional technological expertise, we deliver innovative valve solutions and professional technical support to critical industries including energy, chemical, water treatment, pharmaceutical, and food processing.
The Group operates four state-of-the-art manufacturing bases strategically located in Shanghai, Tianjin, Lishui, and Jiaxing, China. To better serve international markets, we have established branch offices in key strategic locations including the United Kingdom, Turkey, Belarus, Saudi Arabia, and Indonesia. The establishment of our Indonesian office significantly enhances our service capabilities in the Southeast Asian market, ensuring timely and efficient technical support and services for local partners and clients.
Rooted in the German tradition of precision manufacturing, Vatten Valve maintains its focus on automatic control valves while strictly adhering to international quality standards. We are committed to continuous innovation, providing customers with superior performance products, professional technical support, and comprehensive fluid control solutions, empowering them to address complex industrial fluid control challenges.