What is PTFE Diaphragms?

Kurwa Rubber & Valves | 3rd May, 2018

PolyTetraFluoroEthylene (PTFE) is a form of thermoplastic resin that is resistant to practically most of corrosive services. It is one of the best materials for diaphragm because of its chemical stability and resistance.

PTFE diaphragms have been one of the most thriving components that have lead to a breakthrough in the pump industry. They have been widely produced and are extremely successful in various industries across the globe.

Applications or Uses of PTFE Diaphragm

The PTFE diaphragm has been widely accepted by all the consumers because of its stability and resistance. However, the most common consumers of the diaphragm are:

  • Food processing industry
  • Sanitary application industry
  • Chemicals and refineries
  • Pharmaceutical industry
  • Chemical production industry
  • Electronic industry
  • Water and waste processing industries

Benefits of PTFE Diaphragm Over Other Materials Are

  • Intense heat resistance
  • Intense chemical resistance
  • Intense steam resistance
  • Lowest coefficient of friction
  • Partially Flexible
  • Non-toxic
  • Odorless and tasteless
  • Can be sterilized
  • Steam-proof
  • FDA approved for food applications

Kurwa specializes in PTFE lined Rubber Diaphragms (0.25mm, 0.5mm, 1.00mm lining thickness) as well as Pure PTFE Rigid (up to 3mm thickness) Diaphragms for all kind of Valves, pumps, and actuators used in critical corrosive applications. The Rubber used with PTFE Linings are Neoprene, EPDM, Butyl, and Hypalon.

Kurwa’s PTFE Lined Diaphragms are made from size ranging from 12mm to 600mm Diameter in various shapes. The diaphragms have been tested up to 6kg/cm2 and operated up to a 1000 cycles. These diaphragms are not suitable for vacuum service and high pressures.

The company designs, develops, prototypes PTFE Diaphragms as per customers’ requirements/service conditions.

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