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fabric reinforced diaphragm shuttle

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Fabric Reinforced Diaphragms] [All-Rubber Diaphragms for Low-Pressure Applications]

Description of Driving Event

fabric reinforced diaphragm shuttle
A dual suit pressure controller failed to pressurize a crew coverall during manned suit testing and the shuttle flight STS-37 Terminal Countdown Demonstration Test (TCDT). The coverall is donned by an orbiter crew member during launch and entry. No previous failures of this type had occurred before. Upon disassembly of the suit, a small piece of fabric reinforced elastomer material (from a seal called a neck dam that separates the head and torso parts of the coverall) was found lodged inside the controller on the primary diaphragm assembly seat. Before the TCDT, a rapid replacement of the neck dam was performed. The usual, but undocumented, step in the replacement procedure that called for component removal before changing the neck dam did not occur. The piece of elastomer from the old neck dam remained in the suit as debris and migrated to the diaphragm during the pressure cycling. The corrective actions included: (1) documenting the procedural steps to require component removal, (2) protecting the component area from debris by adding plastic sheeting, and (3) vacuuming the inner volume of the coverall and inspecting it following all maintenance work. A failure of a coverall of this type during flight could result in the loss of the crew member if cabin pressurization failed.

fabric reinforced diaphragm shuttle

Fabric-Reinforced Diaphragms Offer:

  • Positive Seal
  • Low Spring Rate
  • No Lubrication
  • No Breakaway Force
  • No Friction
  • High Strength
  • Functionality Over Wide Pressure Ranges
  • Low Cost
  • Simple Design
  • Versatility
  • Therefore, fabric reinforced diaphragm shuttle is widely used for many applications.

 

 

 

 

 

Dia•Com is a leading international provider of innovative, cost-effective molded diaphragm and fabric reinforced diaphragm shuttle solutions critical to the operation of essential systems and equipment in industrial, automotive, aerospace, medical instrumentation, and food and water processing applications. The company's reputation for excellence is based on superior quality in the design, manufacture and application of its high-performance, state-of-the-art, fabric-reinforced and homogeneous elastomeric diaphragm seals.

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