The Casing spacer shall be constructed of a circular, 8-inch or 12-inch wide, 14-gauge carbon steel fusion bonded band, which bolt together forming a shell around the carrier pipe.

The spacers shall have a combination of 10-gauge risers MIG welded to the bands and 2-inch wide high strength glass filled polymer runners. The runners and risers shall be placed in position to properly support the carrier pipe within the casing and maintain a minimum clearance of ¾-inch between the casing ID and the spacer OD. All runners shall be attached with stainless steel nuts, to stainless studs, which are permanently MIG welded to the risers.

The runners will have a recess in which the nuts are placed; the recess shall remain open to accommodated removal if required to adjust.

The liner shall be a ribbed PVC extrusion, with a thickness of .090-inch, with hardness of Durometer “A” 85-90. The runners shall be of high pressure molded glass reinforced polymer, 2-inches wide. The ends of the runners shall be beveled to facilitate installation over rough weld beads or deformed casing pipe. All hardware shall be 304 stainless steel.

The casing spacers shall be model BWM-FB-8 for up to 24-inch diameters and model BWM-FB-12 for larger sizes as manufactured by the BWM Company, Forest City, NC.

Product Catalog

Casing spacers shall be a two piece shell made from 14 gauge mild steel. Each shell section shall have a flange with a minimum of three 5/16-inch steel bolts for eight inch wide and four for twelve inch wide spacers.

Each shell shall be lined with a ribbed PVC extrusion with a retaining ridge that overlaps the shell to prevent slippage.  Runner surface shall be UHMW polymer for abrasion resistance and a low coefficient of friction.

The runners and risers shall be attached at appropriate positions to properly support the carrier pipe within the casing and to ease installation.  The runners shall be attached mechanically with bolts and the bolt heads TIG welded for strength.

The spacers shall be galvanized, painted, or epoxy coated depending on specific job specifications.

Standard positioning within the casing will require the height of the runners and risers to be sufficient to provide clearance between the casing and the outside diameter of the bell or restrainer.  Centered positioning within the casing will require the runners and risers to place the carrier pipe in the center of the casing and to provide a maximum clearance of 1-inch to the top of the casing.