A&A Material - Plastics

Non-metallic Expansion Joint
AP Connector

AAMNo.

• 9550

AP Connector is a non-metallic expansion joint used for the expansion part of bellows employing cloth and resin materials.
It combines the elasticity of nonmetal with a free range of materials to produce a variety of results, and can insulate duct piping against displacement, vibration, and/or stress.

Features

• Used with cloth or resin in flexible areas to absorb complex displacement and ensure superior flex resistance
• Handles corrosive exhaust gas resulting from usage of PTFE film
• Shows greater absorption of displacement than metal expansion joints, reducing the number required in individual (single) equipment lines, allowing narrower installation widths (interface)
• As the basic component is cloth or resin, less reaction occurs in the equipment line, easing duct layout including supporting positions of duct.
• Available in any shape, such as round, square, and atypical, with large bore

Usage

• Exhaust gas systems in boilers and gas turbines
• Ventilator systems
• A wide variety of smoke and exhaust gas systems
• Openings or duct systems of flue gas desulfurization and denitrator equipment
• Air-exhaust ventilator and dust collector openings

Maintenance

• Expansion joints absorb expansion and contraction of ducts and peripheral equipment, easily allowing the load to be concentrated; however, as deterioration occurs over time, they must be changed regularly.
• A&AM conducts the following maintenance inspections:
  • 1)
    Visual exterior checks, palpation, noise checks (in operation and under suspension)
  • 2)
    Surface temperature observation via infrared camera (in operation)
  • 3)
    Inspection of internal heat-insulating materials via borescope (under suspension)
  • 4)
    Sampling analysis
  • 5)
    Other (wall thickness inspection of fluid contact metals, etc.)
• Timely repair / replacement of parts showing deterioration prevents any damage from progressing to a serious stage.
• Please inquire with any further questions concerning maintenance.

Other

• Further information on handling precautions and safety issues is contained in the safety data sheet (SDS) of each respective material.