Valves - diaphragms

PTFE diaphragms

Overview

PTFE diaphragms

Polytetrafluoroethylene (PTFE) offer the ultimate chemical resistance and purity. Our PTFE diaphragms are extremely chemically resistant, often used with heptane and methyl chloride.

All our diaphragms are laser-etched with cure dates and batch numbers, ensuring that they are completely traceable.

Features and benefits

  • Not really an elastomer; has cold flow issues that can result in leaking
  • Relatively higher cost to other materials
  • Currently only available for our tank valves
  • All our diaphragms are laser-etched with cure dates and batch numbers, ensuring that they are completely traceable
  • Extremely chemically resistant
  • 极耐蒸汽
  • Only available for tank valves

Technical summary

Diaphragm variant(s) Bellows
Compatible actuators AJS, AKS (0.5", 1", 1.5")
Material specification Polytetrafluoroethylene
Standards ASME BPE, USP VI

Technical Summary table lists features available within the range. See ‘Specifications’ tab for model specific information.

Specifications

Technical specifications

PTFE diaphragms
Sizes 0.5", 1.0", 1.5", 2.0", 3.0"
Colour White
Diaphragm variant(s) Bellows
Parylene treatment No
Operating temperature range 4 to 260 °C
Operating temperature range 39 to 500 °F
Compatible actuators AJS, AKS (0.5", 1", 1.5")
Material specification Polytetrafluoroethylene
Standards ASME BPE, USP VI

Materials of construction

Material PTFE

Literature

Brochures

  1. ASEPCO weirless radial diaphragm valves (EN).pdf
    PDF - 600.3kb

Datasheet

  1. ASEPCO diaphragms datasheet (EN).pdf
    PDF - 234.5kb

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