Industry commercial pig-iron pressure pipes and connecting parts to them
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Cast iron pipe
In the 's No-Hub Couplings were the next best plumbing innovation to hit the market and transformed cast iron drainage pipe installations. This happened just before plastic piping became available and acceptable in the plumbing industry and transformed the industry all over again. In this article we hope to provide you not only a brief history but also useful information regarding the versatility of no-hub couplings and their ability to be used for plastic piping as well. No-hub couplings revolutionized cast iron drainage pipe installations from a hazardous, tedious, skilled craftsman trade, to a simpler, quicker, less tools needed, safer occupation.
Before no-hub couplings were invented, hub and spigot cast iron piping would be connected into fittings with hubs or bells by using lead, oakum , melting pots, burners, special clamps, cast iron ladles, joint runners and caulking irons. All of these tools were needed in order to ensure the plumber could pour the melted lead into the fitting and get the lead to evenly flow around the entire pipe and seal the fitting properly.
This technique was accepted as the best possible way to join and seal pipe. You not only had to be trained, you also had to have years of practice as first an apprentice and then as a journeyman, before you could be considered as a master plumber in this field. In the 's the residential housing boom surfaced. The Servicemen's Readjustment Act of , which came to be known as the G. Bill, gave military veterans access to affordable college education. This in turn led to highly-educated, productive employees entering the work force and American businesses were willing to pay top dollars for management and engineering skills.
Inexpensive oil from domestic wells was helping the engines of industry to move forward. New advances in science and technology increased work place productivity.
And since any would-be competitors in Asia and Europe were in the process of recovering from the effects of the devastation brought about by World War II, our economy flourished, the baby boom had begun and new housing was desperately needed.
With the housing boom in full swing, plumbing and building contractors came to the conclusion that connecting pipes with lead and oakum was no longer cost effective because it required too much time and labor. Builders realized they needed a much faster way to connect pipe and reduce their building costs.
The American pipe industry found and created a solution with the shielded no-hub coupling design. However, how could something so simple be better than lead and oakum? New ideas are not always readily acceptable because people tend to be skeptical until something proves to be better. By the late 's contractors began to realize the no-hub coupling was not just a "band-aid" but a viable quality product that was indeed solid and secure and was passing the test of time.
As you can see, the invention of no-hub couplings streamlined the drain pipe installation process tremendously, and with just a 15 minute training period needed, hub and spigot lead and oakum installations soon became a thing of the past. Cast iron piping is still used in most commercial buildings like hospitals, hotels, vehicle dealerships, banks, office buildings, schools, lube shops and countless other facilities.
Some codes limit plastic piping to no more than two story buildings. Some buildings may fall under local codes for health or safety and cast iron piping may be specified because it is not susceptible to burning like PVC or ABS piping, should a fire occur. Cast iron piping is often used in many residential multi-story housing projects because it provides a much quieter flow of waste water than either ABS or PVC plastics.
If you have ever been in a room on the first floor of a two story building where ABS or PVC was installed and someone flushes the upstairs toilet, you would know what we mean. They can be especially helpful when the piping is in a hard to reach spot or the pipe is unable to be moved in either direction to allow the repair to be made with a solvent glue-on coupling.
The pipe can be cut to remove the damaged area and a no-hub coupling can be installed along with the replacement piping. For these two smaller sizes you could use a no-hub coupling to connect ABS or PVC directly to cast iron piping without a problem.
Without the use of these special adapters, the inner gasket of a no-hub coupling will stretch too much and not provide the best seal possible. No-Hub couplings have an inner gasket made of a synthetic rubber compound, polychloroprene neoprene.
The inner gasket is surrounded by an outer stainless steel shield or band with stainless steel worm clamps strategically riveted to the shield to keep them in place. Series stainless is used for corrosion resistance. No-Hub Couplings are often confused with Flexible Rubber couplings which are a much thicker walled rubber coupling with two stainless steel clamps but do not normally include a stainless steel shield.
As defined in the Uniform Plumbing Code section Flexible rubber couplings with stainless steel clamps, without a shield, are designed for use below ground. The no-hub coupling shield is designed to adjust to variations in diameters of pipes to be connected. As the stainless steel worm clamps are tightened, the corrugated shield interlocks with itself. As further tightening occurs, pressure is exerted both parallel and crossways against the inner gasket, tightening it against the pipe and providing a solid reliable seal.
The shield keeps the pipes aligned with each other, preventing sagging or shifting, which could cut or break the inner gasket. The gasket creates the seal between the pipes or pipe to fitting and also helps prevent the pipes or fittings from pulling out of the coupling.
We hope we've provided you answers to any questions you may have had about no-hub couplings and if not, please do let us know. As you can see, there are many uses for no-hub couplings that can make your plumbing experience a little easier and possibly more enjoyable yet still provide a sound, solid connection. Plumbing Terms. View Cart. Toggle navigation Help View Cart Contact.
The History of No-Hub Couplings. Step 1: Simply slide the outer stainless steel shield over and down the pipe first. Then put the inner gasket onto the pipe.
Step 2: The inner gasket can then be placed on the end of the pipe and folded down in order to align the pipe back in place close enough to be folded back over and onto the pipe. Step 4: And finally, slide the shield back over the gasket and tighten the clamps.
For proper tightening use a 60 inch-pounds torque wrench. No-Hub Coupling. Flexible Coupling. All Rights Reserved.
Cast Iron Venturi
One of the most crucial aspects of home maintenance is drain upkeep. When drains and water pipes fail to work properly, it's impossible to cook, clean or do much of anything. Therefore, it's important to care for your water pipes and know when to call for home drain maintenance.
Miscellaneous Publication - National Bureau of Standards. United States. National Bureau of Standards. Classified list of specifications.
Pressure Reducing Valves
The application of the referenced standards shall be limited and as prescribed in section The provisions of this chapter shall govern the general regulations regarding the design and installation of plumbing not specific to other chapters. Plumbing shall be installed with due regard to preservation of the strength of structural members and prevention of damage to walls and other surfaces through fixture usage. Plumbing fixtures, drains, appurtenances and appliances used to receive or discharge liquid waste or sewage shall be directly connected to the sanitary drainage system of the building or premises, in accordance with the requirements of this code and the requirements of the department of the city engineer, in cities having such departments, the boards of health of health districts, or the sewer purveyor, as appropriate see division D of section This section shall not be construed to prevent indirect waste systems required by Chapter 8. Bathtubs, showers, lavatories, clothes washers and laundry trays shall not be required to discharge to the sanitary drainage system where such fixtures discharge to a recycled water system approved by the "Ohio Environmental Protection Agency" in accordance with Chapter of the Administrative Code or approved by the "Ohio Department of Health" in accordance with Chapter of the Administrative Code. Wastes from dental or cuspidor fountains, drinking fountains, bar sinks, soda fountains, floor drains or shower drains may be indirectly connected by means of an air break to the sanitary drainage system.
Pipe Sleeve Seal
It can also be used for structural applications; hollow pipe is far stiffer per unit weight than solid members. In common usage the words pipe and tube are usually interchangeable, but in industry and engineering, the terms are uniquely defined. Depending on the applicable standard to which it is manufactured, pipe is generally specified by a nominal diameter with a constant outside diameter OD and a schedule that defines the thickness. Tube is most often specified by the OD and wall thickness, but may be specified by any two of OD, inside diameter ID , and wall thickness. Pipe is generally manufactured to one of several international and national industrial standards.
The height of the venturi with an orifice is approximately 3". The oil will help protect the porcelain coating, decrease sticking, and protect damaged or worn. Dependable and durable jet pumps for supplying water to residential, agriculture or light commercial water transfer. The coatings used were generally in the hydrocarbon family of coal tar and the thicknesses varied depending on the application method.
There are many types of plumbing pipes for residential or commercial buildings. Plumbing pipes such as PEX, Copper, and PVC are normally used depending on their application and the location in which they are installed. Also, there are some other plumbing pipe types such as black, galvanized and brass.
Gi Grooved Pipe. The Series grooved-end ball valve line consists of a 2" to 6", two-piece design, and is available in configurations to address a broad spectrum of application requirements. Grooved piping is a well-respected and proven pipe assembly process and method with decades of success. Petrofac Qatar has one of the largest stocks of process pipes, line pipes, fittings and flanges in Qatar. This data is collected so that we can provide an accurate quote or refer you to a Dixon distributor for a quote.
Polyvinyl Chloride (PVC)
Piping for industrial plants and marine applications. This code prescribes minimum requirements for the design, materials, fabrication, erection, test, and inspection of power and auxiliary service piping systems for electric generation stations, industrial institutional plants, central and district heating plants. Design of chemical and petroleum plants and refineries processing chemicals and hydrocarbons, water and steam. This Code contains rules for piping typically found in petroleum refineries; chemical, pharmaceutical, textile, paper, semiconductor, and cryogenic plants; and related processing plants and terminals. This Code prescribes requirements for materials and components, design, fabrication, assembly, erection, examination, inspection, and testing of piping. This Code applies to piping for all fluids including: 1 raw, intermediate, and finished chemicals; 2 petroleum products; 3 gas, steam, air and water; 4 fluidized solids; 5 refrigerants; and 6 cryogenic fluids. Also included is piping which interconnects pieces or stages within a packaged equipment assembly.
Pipe Sleeve Seal. More info Drain Seal. The proposed system will perform repairs while the pipe remains in service by traveling through the pipe, cleaning each joint surface, and attaching a stainless-steel sleeve lined with an epoxy-impregnated felt across the joint. A The Manchette Tube. Simple and easily repeatable installation process.
Everything You Ever Wanted To Know About Home Drain Pipes
Cast iron pipe is a pipe which has had historic use 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. It comprises predominantly a gray cast iron tube and was frequently used uncoated, although later coatings and linings reduced corrosion and improved hydraulics. In cast iron pipe, the graphite forms flakes during the casting process, when examined under a microscope.
Occupational outlook handbook. United States. Bureau of Labor Statistics. Describes occupations which cover approximately million jobs.
American and English WagesEconomist. BarrowinFurness 11 35 59 83 Clayton R H and othersPistons Railway Axle Boxes.
Create a new project. Project name. Please enter a search query. Upgrade to premium. Print chapters, sections, and subsections for frequently used code. Project pages allow you to export groupings of code across different chapters and publications.
Designed for shallow well and deep well applications the will work with wells up to 80 ft. Mixing zone 7. These Inspirators are used to pull atmospheric air to be used for the mixture of gas and air. Single straight Venturi cast iron H shaped burner was made to fit an older El Patio barbecue grill model.