Floor flanges are fittings used in building and plumbing to attach fixtures. They can be made of metal or plastic and serve as mounting points for vertical elements and toilets. They are secured to floors with screws or bolts and locked into sockets with dowels, bolts, adhesive, or welds.
A floor flange is a term describing a fitting used in the building and plumbing industries to attach decorative, structural, and sanitary fixtures. In the case of building elements, floor flanges typically consist of a flat disc with a series of fixing holes and a shaped hollow socket. The disc is screwed or bolted to the floor via the mounting holes and the flange supported column or post is locked into the socket. Sanitary floor flanges serve as the mounting points for the toilet and as an interface fitting between the siphon outlet and the soil pipe. Floor flanges can be made of metal or plastic or a combination of both.
A commonly used construction and plumbing fitting, the floor flange secures posts, columns, beams, and plumbing fixtures to building floors. Construction flanges typically mount flush to the floor surface while plumbing flanges dig into the floor, thus forming mounting points for sanitary fittings and joins to each other and soil or wastewater piping systems. Building floor flanges provide floor mounting points for any number of vertical elements including handrails, flag and light poles, decorative columns, and structural beams. These flanges are usually made of one-piece flange and socket combinations. The flat flange is drilled with several mounting holes and the socket can also be drilled to accept lock bolts.
These flanges are locked into place on wood or concrete floors by screws, bolts or anchors that pass through the flange’s mounting holes. The post that supports the flange is then threaded into the socket and locked in place with dowels, bolts, adhesive, or even welds. In the case of structural steel beams, the slab flange can be nothing more than a flat, square metal plate welded to the end of an I-beam and then bolted to a concrete slab. Sockets on a construction floor flange can be shaped to support almost any stud profile, the most common types being round or square profiles.
The plumbing floor flange is used as a mounting point and union fitting for toilets. Also known as a closet flange, it typically consists of a one-piece or modular fitting/flange combination designed to connect the trap to the soil pipe line and provide mounting points for the toilet bowl. There is a wide variety of materials and finishes used in the construction of floor flanges. Most construction flanges are made from stainless steel, brass, or cast iron and are often finished with embellishments that complement the decorative plating and embellishments. Hydraulic floor flanges are usually made from ABS or PVC plastic with the frequent inclusion of metal flange elements.
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