What is a no hub pipe?
A no-hub drain has a lower end that is the same diameter as the drain pipe beneath it. This is essentially a short wide section of pipe that slips over both the end of the drain and the end of the drain pipe, connecting them together.
What is single hub cast iron pipe?
The cast-iron soil pipe used in plumbing installations comes in 5-foot and 10-foot lengths. Note that single-hub pipe has a hub at one end and a spigot at the other. The double- hub pipe has a hub at both ends. Hubs, or bells, of cast-iron soil pipe are enlarged sleeve-like fittings.
How is hubless cast iron joined?
Hubless cast iron soil pipe is joined by using the no-hub coupling. These couplings are manufactured using a stainless-steel shield-and-clamp assembly and an elastomeric seal- ing sleeve conforming to he requirements of ASTM C-564.
What is cast iron pipe made of?
Cast iron pipe is pipe made predominantly from gray cast iron It was historically used as a pressure pipe for transmission of water, gas and sewage, and as a water drainage pipe during the 17th, 18th, 19th and 20th centuries.
What is used to join the ends of to hubless cast iron pipes?
Also known as no-hub, hubless couplings connect hubless cast iron pipe with a rubber sleeve and a stainless steel band secured by hose clamps.
How big is a hubless cast iron pipe?
There are many varied configurations of fittings and both pipe and fittings range in size from 1 1/2″ to 15″. Metallic shielded couplings for use in joining hubless pipe and fittings are also available in these size ranges from the member companies of the Cast Iron Soil Pipe Institute.
What’s the difference between no hub and hubless pipe?
Hubless pipe and fittings are also referred to in the plumbing industry as no-hub. Hubless cast iron soil pipe and fittings are manufactured without a hub, in compliance with CISPI 301.
Can a no hub coupling be installed on cast iron pipe?
The pipe can be cut to remove the damaged area and a no-hub coupling can be installed along with the replacement piping. ABS and PVC schedule 40 piping have a slightly larger overall outside diameter than cast iron pipe.
What kind of hub does cast iron soil pipe need?
Hubless cast iron soil pipe and fittings are manufactured without a hub, in compliance with CISPI 301. The method of joining the pipe and fittings utilizes a metallic shielded hubless coupling, manufactured to CISPI 310, that telescopes over the plain ends of the pipe and fittings and is torqued to seal the joint.
What is hubless cast iron pipes?
Cast Iron Soil Pipe and Fittings are classified into two major types-hub and spigot and hubless. Hubless pipe and fittings are also referred to in the plumbing industry as no-hub. Hubless cast iron soil pipe and fittings are manufactured without a hub, in compliance with CISPI 301.
What is cast iron hub?
Cast Iron Caulking Hubs. Inlet hubs are of cast iron construction and custom designed to fit curvature of the basin. The inlet hubs include gasket, nuts, bolts, and washers. Cast Iron Caulking Hubs (PDF)
Are cast iron fittings used for gas?
Malleable cast iron parts are commonly used in machine construction, typically in the paper, printing and agricultural industries, where the material is used to make oil, cooling and lubrication pipes. The material is also used in the construction of industrial plants where it is used for pressured air pipe, emulsion and gas work .
What is a hub pipe fitting?
Hub pipe and fitting are older type of material that uses lead and oakum packed into the hub to make the seal. No-Hub is newer system that uses No-Hub couplings (aka Fernco couplings) to connect pipes and fittings.
