Rubber Diaphragm

Rubber diaphragms are essential in sealing, actuation, and sensing devices. Their performance depends on optimized geometry (flat, convoluted, rolling), elastomer selection (NBR, EPDM, Silicone, etc.), and manufacturing quality. Proper material choice and design ensure reliable operation in high-cycle, pressure-sensitive, and chemically aggressive environments.

• Flat diaphragms: Simple rings or sheets excellent for low-pressure sealing or static barriers .

• Molded (dish‑shaped): Pre-formed into a cup or dome for precise motion or sealing in valves and pumps .

• Convoluted diaphragms: Feature folds for large deflections with minimal stress—ideal for pressure regulators and metering devices
  
  Rolling diaphragms: "Top hat"-like, allowing frictionless, long-stroke piston motion, often used in actuators and hygienic applications
  
  
  Superior sealing: Leaks are prevented even under large pressure changes
  Durable flexibility: Handles repeated flexing without tearing
  
  Chemical & thermal resistance: Customizable elastomers meet specific fluids and temperatures
  

• Low friction & no lubrication: Especially rolling and molded types .

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• Fast response: Ideal for precise control and sensing applications
  
  

  Applications

   

  • Pumps (diaphragm pumps, peristaltic, metering)
    

  • Valves & regulators for fluid control systems
    
    
    

  • Automotive (engine control, braking, fuel systems)