Two-Ply Testable Bellows Expansion JointWhether you are installing an expansion joint in a refinery, power plant, or any critical application, downtime can be a costly affair. To prevent downtime and create a predictable environment, a two-ply testable bellows expansion joint can be installed to put you at ease.
A two-ply testable bellows expansion joint contains a bellows capable of allowing the flow of media between the two plies to be monitored by either a gauge or DME pop-up device. Wire mesh is placed between the two plies of bellows material to ensure a flow path between each ply. Two test ports are attached at opposite ends, 180 degrees apart. See Figure 1.
Unlike a common multiply bellows; each ply of the two-ply testable bellows can withstand the full line pressure. If the inner ply fails for any reason, the outer ply will compensate and withstand the full design criteria until future repair or replacement can be planned. Why not purchase a two-ply testable bellows expansion joint?
DME has become the leader in manufacturing Quality American Made Bellows Expansion Joints; contact us today to request more information regarding two-ply testable bellows expansion joints.