

The manual cast iron diaphragm valve is a special type of valve that offers cutoff functionality for the medium within pipelines. Its closing mechanism consists of a diaphragm made from a combination of steel plate and soft materials such as rubber and plastic composites. This diaphragm serves as the valve's sealing component, effectively isolating the valve body cavity from the valve cover cavity to prevent any leakage or contamination of the fluid.
This design allows the manual cast iron diaphragm valve to maintain a high level of sealing efficiency during operation, ensuring that the fluid remains safely contained within the pipeline. Its simple yet effective structure also makes it a reliable choice in various challenging environments.
The manual cast iron diaphragm valve finds a broad range of applications. It is widely used in industries such as construction, chemical engineering, metallurgy, petroleum, pharmaceuticals, food and beverages, and environmental protection.

Precise screw gap alignment for smooth operation and maintenance-free performance
Consistent installation length with international valve connection standards
Integrated visual position feedback for easy observation
Ergonomic adjustment module
Handwheel with locking slots every 22.5° for precise opening and closing control
Welded valve seat for easy disassembly and reassembly
We can design and develop according to the needs of our customers to meet the requirements of different clients.
Precise screw gap alignment for smooth operation and maintenance-free performance
Consistent installation length with international valve connection standards
Integrated visual position feedback for easy observation
Ergonomic adjustment module
Handwheel with locking slots every 22.5° for precise opening and closing control
Welded valve seat for easy disassembly and reassembly
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.