Suggestions for Installation and Maintenance

1. Clean all foreign matter and remove burrs or sharp edges from flanges.
2. All pipe lines should be properly supported. so that the expansion joints do not carry the pipe load.
3. Remove burrs or sharp edges from flanges.
4. Do not install joints on raised face flanges of more than 1/16".
5. All pipes are to be lined up accurately before installing expansion joints. Offset joints should be installed where misalignment is greater than the lateral movement allowed by the joint
construction,
6. Bolts should be on the inside of the joint flange. Metal washer must be placed at the facing of the split retaining ring.
7. Bolts should be tightened by alternating around the flange and all tightened equally.
8. Slight gouges or abraded areas caused by tools or bolts during installation should be sealed with rubber cement and painted to prevent deterioration of the carcass.
9. Bolt tightness should be checked one week after going on
stream and periodically thereafter.
10. If system is not anchored to insure against movement beyond maximum stated limits, a control unit must be used

Control Units

Control Units- Excess elongation, caused by shifting of pipe lines may seriously damage rubber expansion joints. This damage can occur when: necessary support is not provided for the weight of the pipe line; low temperatures in the line are encountered; the lines on the pressure side of the air compressors are not anchored properly. Such destructive elongation can be controlled with UNAFLEX® control units.
In general, control units are always recommended as an additional safety factor, preventing damage to the connector and associated equipment. Our experts will recommend the units appropriate for your installation.

PTFE more commonly known by the Brand name Teflon^© by DuPont™ is poly(tetrafluoroethylene). PTFE is a synthetic fluoropolymer which finds numerous applications.

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Construction Details (Styles 150, 200, and 200XL)

1). Tube: The tube is a single molded PTFE leak proof lining extending flange to flange. The outside of the PTFE tube is etched to adhere to the elastomeric overlay.
2). Carcass: This is a high strength woven polyester or Kevlar rein forcing fabric between the PTFE tube and the cover.
3). Steel Reinforcements: These are the chemically treated solid round endless rings or high tensile strength helical wire embedded in the carcass. The steel reinforcement provides additional strength for pressure and vacuum service.
4). Cover: This is the exterior elastomeric overlay designed to
protect the carcass from external elements.

Options:

• Flow liners are available in PTFE, Metallic, or Elastomeric type

Special Constructions:

• Hinged, Gimbal, Dual, pressure balanced. Consult Factory)