Diaphragm Valve

Diaphragm Valve

African Valve is a reliable Diaphragm Valve Supplier in Egypt, offering corrosion-resistant and contamination-free flow control solutions. Designed with a flexible diaphragm as the flow control element, these valves are ideal for applications involving corrosive media, slurries, or where hygiene is critical.

Function & Working

Diaphragm valves use a rubber or elastomer diaphragm that is pressed against a solid dam or weir inside the valve body to stop or control flow. The diaphragm forms a tight seal, separating the process fluid from the valve body and internal components, making it perfect for processes requiring clean, leak-proof operation.

Advantages

  • Leak-proof sealing with zero gland leakage

  • Ideal for corrosive, viscous, and fibrous fluids

  • Smooth, crevice-free flow path to prevent contamination

  • Minimal maintenance due to non-contacting moving parts

  • Quick diaphragm replacement and simple construction

Types Offered

  • Cast Iron Diaphragm Valve

  • Ductile Iron Diaphragm Valve

Industries Served

  • Water and Wastewater Treatment

  • Mining and Slurry Handling

  • Chemical and Fertilizer Industry

  • HVAC and Utility Systems

  • Cement and Pulp Industries

Key Components

  • Valve Body – Made from corrosion-resistant cast iron or ductile iron

  • Diaphragm – Flexible elastomer (EPDM, PTFE, Neoprene) for tight shut-off

  • Bonnet Assembly – Isolates actuator from the process medium

  • Compressor – Transfers actuator force to the diaphragm

  • Handwheel or Actuator Interface – Manual or automatic operation

  • End Connectors – Flanged or screwed for easy pipeline integration

Technical Specifications

  • Design Standards: BS 5156, ISO 16138, EN 13397

  • Body Materials: Cast Iron, Ductile Iron

  • Diaphragm Materials: EPDM, PTFE, Neoprene, Nitrile

  • Pressure Ratings: PN10, PN16

  • Size Range: DN15 to DN350

  • End Connections:

    • Flanged (DIN, ANSI)

    • Threaded (NPT – For compact utility lines)

    • Socket Weld (SW – Space-saving applications)

  • Actuation Options: Manual, pneumatic, electric

  • Special Features:

    • Isolated working parts to extend service life

    • Easy maintenance without line removal

    • Reliable shut-off in slurry and chemical systems

    • Trusted by industries as a top Diaphragm Valve Supplier in Egypt

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