Applications and definitions of Bachmann fabric type joints
BELTED OR MOLDED SINGLE LAYER EXPANSION JOINTS; FOR APPLICATIONS AT AND BELLOW 550° F WITH SHORT EXCURSIONS HIGHER.
The two most common materials for Belted or Molded single layered fabric expansion joints are reinforced Viton & Fluorel* Fluoroelastomers, and Chlorobutyl. These materials have excellent acid resisting properties and are used in gas applications. Glass fabric is used extensively as the reinforcement.
HIGH TEMPERATURE MULTI-LAYERED FABRIC EXPANSION JOINTS
Generally, Multi-Layered fabric type expansion joints are used for higher temperature media than indicated for single layered belted expansion joints (above 550° F).
All types of corrosive gases can be handled, as flow liners can be furnished in a full range of materials such as A36, A242, Stainless Steel, Nickel Alloy, Teflon, etc. The maximum temperature limitation of Bachmann Multi-Layered expansion joints is 2300° F. Each expansion joint is supplied in built up layers to meet your temperature requirements.
The outer coatings of these expansion joints come in a variety of elastomers and fluoropolymers and are insulated from the high temperatures in a manner such as is illustrated.
TYPICAL COMPOSITION OF A BACHMANN MULTI LAYERED EXPENSION JOINT UP TO 2300 °F TEMPERATURES