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Cast Iron Pipe Fittings



Cast iron pipe fittings are specially designed for soil pipes. These pipe fittings are primarily used in building construction for sanitary and storm drain, waste and vent piping applications.

Why Cast Iron Pipe Fittings?
While selecting pipe fittings for drain or sewer system, buyer's mostly prefer materials that are resistant to abrasion. Cast iron pipe fittings are highly resistant to abrasion from sand, gravel, dishwasher discharge, garbage disposal residue and debris, which are carried in suspension along the lower portion of the sewer or drain. This makes cast iron the most sought after choice of buyers for pipe fittings.



Buyer's Consideration

Before buying cast iron pipe fittings, buyer's should concentrate on following points:
  • The strength and rigidity of the fittings should be ensured before buying cast iron pipe fittings.
  • Durability and resistant to abrasion and corrosion is another important factor to be considered before going for cast iron pipe fittings.
  • The size and shape of fittings is also an equally important consideration before buying cast iron pipe fittings.

Important Features:
Cast iron soil pipe fittings are classified either as Hub and Spigot and No Hub or Hubless. Hub coupling fittings comprise a ribbed steel sleeve, which is tightened and held in position by means of steel band clamps on both sides, lined with a rubber gasket. Cast iron couplings are designed to connect pipe to pipe as well as pipe to fitting.
  • Pipes made of no hub cast iron are never threaded or welded. These pipes are connected by means of no-hub couplings.
  • Hub and spigot pipe fittings come in two classes of thickness: Service (SV) and Extra Heavy (XH).
  • Hubless cast iron pipe fittings are usually manufactured without a hub, complying ASTM A 888 or CISP 301 and are available in 1 ½” through 15” sizes.
  • Hubless cast iron couplings are used for joining fittings like ells, wyes, and tees with the pipe.
Uses:
Cast iron pipe fittings are mostly used in building construction and are installed within the partitions. These fittings are best suited for lavatory, tub and water closet fixtures.
Cast Iron Pipe Fittings
Cast iron soil pipe fittings also find application for storm drainage from yards, roofs and courtyards in building construction. Most plumbers prefer cast iron soil pipe and fittings these days in high-rise structures for drain, waste and vent and sewer, irrespective of the height of the building.

Advantage of Cast Iron Pipe Fittings:
Cast iron pipe fittings have several advantages over other types of fittings. Some of the notable advantages are:
  • Performance: The performance and durability of cast iron pipe fittings are far better than other materials used for sanitary and storm drain, waste, and vent piping. Cast iron pipe fittings are extremely durable, nearly indestructible and does not react with most chemicals, and will not burn or melt except under the most extreme conditions. This decreases the hazard of poisonous gases in case of fire or other accidents. Cast iron fittings are also known for their unparalleled performance. These fittings are usually not preferred for pipes delivering water.
  • Soundproofing Qualities: In most installations, neoprene gaskets and hubless coupling are used with cast iron pipe & fittings. This in turn, minimises noise and vibration caused by the contact between pipe and pipe fittings to a great extent. The structure and composition of cast iron helps to dampen the sound rather than transmitting or amplifying it.
  • Versatility: Cast iron pipe fittings are known for their versatility as they come with a wide range of joining methods that allow efficient installation both above and below the floor and even underground. Because of this feature, cast iron is mostly preferred for sanitary and storm drain, waste, and vent piping material on the market. They are also suitable for use in all types of building construction.
  • Low Cost Installation: One of the significant advantages of cast iron fittings is that they ensure low-cost installation.
Types:
Quite a few variety of pipe fittings are made of cast iron like:

Pipe Adapters Pipe Elbow Pipe Reducer
Pipe Coupling Pipe Union Pipe Tee




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