A composite pipe including an internal liner and at least one external layer made of a fiber reinforced consolidated thermoplastic material. The compounds provided include polypeptides that contain at least one antigenic portion of one or more M. The layout table may include multiple extent entries, where each extent entry represents a mapping of an extent of block device storage to a virtual address range of the logical volume, including an indication of a stripe of the logical volume to which the extent is mapped. To prevent damage to the valve seat and to the valve closure member, an elastic damping element may be disposed behind the valve closure member so that the valve closure member can deform compliantly up impact against the valve seat.