definition kelly hose made in china
A rotary hose is also used as a means of permitting the kelly to be either raised or lowered through the drilling process while also allowing the drill bit to be raised with the drillstring. For this reason, it is also often referred to as a “kelly hose.”
Rotary hoses also function during the process that allows the drilling fluid to be pumped through the hose when the bit and drillstring are raised and lowered. This process is imperative in the completion of the drilling process.
These rotary vibrator hoses are made up of the Gates range of Black Gold hoses that meet the severe demands of today’s drilling methods including directional drilling, pressure pulses and elevated temperatures.
Flexible drilling rubber hoses play an important role in petroleum extraction. They should suffer high operating pressure, extreme operating temperature, abrasion and other inferior elements. Our special compounded synthetic rubber has been proven an effective and economical way to reject these problems. All our oilfield drill hoses are manufactured as API 7K or other related specifications.
Steel cable reinforcement loads most working pressure up to 15,000psi. The wires are usually zinc-plating or copper platting to improve steel wire resistant against rust and corrosion. Due to the thick reinforcement, the hoses should be handled or stored in correct way to avoid kicking or crushing. They will substantially decrease their rated operating pressure.
Rotary hose, Kelly hose, cement hose, mud hose, jumper hose and vibrator hose and choke & kill hoses are the most popular oilfield rubber hoses. They convey high-pressure drilling fluid from one place to another. Many end fittings are provided to satisfy different applications. Most end fittings are made according to API standards. Special order is also available.
A large-diameter (3- to 5-in inside diameter), high-pressure flexible line used to connect the standpipe to the swivel. This flexible piping arrangement permits the kelly (and, in turn, the drillstring and bit) to be raised or lowered while drilling fluid is pumped through the drillstring. The simultaneous lowering of the drillstring while pumping fluid is critical to the drilling operation.
The main advantage of a kelly hose is that it helps you move water from one point to another without much struggle. Hose pipes are also versatile and can be used for various activities in your home or at your workplace. Moreover, rubber horse pipes are durable since rubber is a strong material. This means that you won’t need to replace it often. Additionally, rubber hoses are less prone to cuts and abrasions. Another advantage of this hose pipe is that it absorbs shocks and vibrations. Also, there is no need for specialized bending or brazing since it can bend easily. Lastly, it reduces pressure surges and lubricates itself.
When buying a kelly hose, there are several factors that you need to consider, including length, couplings, thickness, and price. The length of the kelly hose is an important factor to consider. If you are taking the water to the furthest corner of your compound, consider getting a longer pipe for convenience. Also, if you are watering a large garden, a longer pipe will serve you better. Couplings or horse pipe fittings are also another important consideration. These are the accessories that help you connect your pipe to the water source. They can either be made from brass or plastic. Some people prefer plastic couplings since they are lightweight, but they can break easily. Brass fittings are heavier but long-lasting. Lastly, consider the thickness of the pipe. This refers to the number of layers used to make the kelly hose. Thickness determines the weight of the pipe and ease of bending.
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A device fitted to the rotary table through which the kelly passes. It is the means by which the torque of the rotary table is transmitted to the kelly and to the drill stem. Also called the drive bushing.†
A hole in the rig floor 30 to 35 feet deep, lined with casing that projects above the floor. The kelly is placed in the rathole when hoisting operations are in progress.†
The hose on a rotary drilling rig that conducts the drilling fluid from the mud pump and standpipe to the swivel and kelly; also called the mud hose or the kelly hose.†
A vertical pipe rising along the side of the derrick or mast. It joins the discharge line leading from the mud pump to the rotary hose and through which mud is pumped going into the hole.†
A rotary tool that is hung from the rotary hook and traveling block to suspend and permit free rotation of the drill stem. It also provides a connection for the rotary hose and a passageway for the flow of drilling fluid into the drill stem.†
The top drive rotates the drill string end bit without the use of a kelly and rotary table. The top drive is operated from a control console on the rig floor.†
SKIVING Skiving a hydraulic hose is the process of using special equipment and tooling to shave a predetermined depth of the OD and ID of the hose. Some medium pressure hose fittings require only external skiving (or single skive) in order for the ferrule and hose fitting to mate correctly.
Higher pressure hose applications may require internal and external skiving. Skiving a hydraulic hose ensures a metal to metal connection between the hose fitting and hose, resulting in a highly reliable connection.
Skiving lets the ferrule of the hose fitting assembly bite into the wire braiding of the hose instead of just crimping to the outside diameter (OD) of the hose cover. If the hose is not skived the thread of the ferrule is forced into the hose cover, biting into the rubber, which could result in a less reliable connection. Once the assembly has been set, it is essential to correctly crimp the fitting onto the hose using the hose fitting manufacturers’ crimp specifications. Look for fitting manufacturers that can provide crimp specifications for multiple hose manufacturers. If the fitting manufacturer does not provide the crimp specs for a specific hose the installer must make an adjustment. In these cases it is critical that high pressure hoses are pressure tested to ensure the installation is accurate and secure.
NON SKIVING Non-skiving is when the hose and fitting connection is designed ready to assemble without the skiving process, with no removal material from the hose. If the hose is not skived the thread of the ferrule is forced into the hose cover, biting into the rubber, which could result in a less reliable connection.
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This remarkable collection of alpha males repelled and fascinated contemporary observers. Journalists filled newspapers and magazines with accounts, some highly exaggerated, of warlord actions. Moviegoers gained a different perspective via films like Shanghai Express(1932) or The Bitter Tea of General Yen(1933). Even seasoned diplomats and “old China hands” were mesmerized by warlord avarice and audacity. Still, to most American and Western readers, Chinese warlords were exotic foreigners whose antics were far too complex for comprehension. S. J. Perlman provides a sense of this in his New Yorkersatire on the 1936 Xian Mutiny, in which warlord Zheng Xueliang kidnapped Guomindong leader Chiang Kai-shek:
Chinese, who suffered from their misrule, were all too familiar with the warlords. Sun Yat-sen, acclaimed “Father of the Republic,” denounced them as “a single den of badgers.”3 Progressives regarded these militarists as a malignant force whose collective actions factionalized the nation. Junfa, the Chinese word for warlord, soon became a loaded pejorative for misuse of authority. Modern historians share this view; Andrew Nathan accused warlords of creating “the darkest corner in twentieth-century Chinese history.” Fellow China expert Lucian Pye argued they “set back whatever chances there may have been for China to develop a more open, competitive, and democratic system of government.”4
As both men rose through the ranks, with the help of patrons, they became connected to warlord alliances, often called cliques. Feng joined the Zhili Clique, whose star was Wu Peifu, the “Jade Marshal.” A master tactician, Wu was that rare warlord with a classical education. Zhang followed a more circuitous route to the Fengtian Clique, whose chairman was the unrelated Zhang Zuolin, the so-called “Tiger of Manchuria.” These alignments guaranteed Feng and Zhang would become enemies, for both cliques sought to dominate Beijing, the weak but still valuable capital of China.
Preventing silver bullet attacks required trusted lieutenants and dedicated soldiers. These were rare commodities among warlord armies, which tended to recruit desperate men incapable of finding employment back home. Most warlord soldiers suffered from weak morale, often exacerbated by poor rations; pay sometimes months in arrears; and mercurial discipline. Feng partially avoided these problems by indoctrination, charisma, and by insisting his officers took good care of the rank and file. He pushed Christianity as glue that could bind soldiers together; his best units boasted 50–60 percent Christians across the board. Feng provided pastors and Chinese missionaries to encourage conversions, and there were cases where entire companies became Christian. Journalistic reports that Feng “baptized entire regiments with a fire hose” were false, but he was known for exhorting his men to sing hymns on a regular basis.
Zhang briefly enjoyed the pleasures of Shanghai, connecting his interests to the criminal gangs and their drug business. Driven out by another junfa, he was made governor of Shandong Province in 1925. Zhang helped defeat Feng a year later and, sadly for his home province, stayed in charge of Shandong until 1928. During those three very hard years, Zhang and his soldiers destroyed the local economy through graft, mismanagement, and outright destruction. Starved of funds, the entire provincial educational system collapsed by 1927; the provincial currency, issued as fast as printing allowed, was nearly valueless. Criticism could lead to imprisonment, and resistance produced more “split melons,” with severed heads hung from telegraph lines as a reminder to survivors. Peasants, already angry with warlord misrule, responded by forming the Red Spear militia. Known for their red-tasseled spears and not too many firearms, these were men and women angry enough to take on better-armed warlord troops. They made life difficult for Zhang’s smaller units, and woe betide any stragglers caught by the Red Spears.
Modern Chinese nationalists might prefer to cast Zhang as the wicked warlord but Feng as a patriot. Zhang was the poster boy for warlord excess, while Feng claimed he was a “chameleon,” because he stood with “anyone supporting China, and against anyone whose own interest came first.”10 Both men were key players in the era of the warlords, an era of hyper-militarism that supported the Chinese adage that “good iron is not made into nails, and good men are not made into soldiers.”
Author’s Note: Thanks to Dr. David Buck for providing a hard-to-find journal article, and to Y. C. Chen and Stephen Rynerson for providing online data. Three readers, whose names are correctly unknown via the “blind review process,” also deserve praise for corrections and new sources. If this article deserves merit, it is shared with all; if it retains flaws, those belong to the authors.
Of course, those do still exist. And they have their place too, in situations where you might need something that tough. We recommend one made from the traditional rubber, in fact, as well as the best in class for other situations.
Many people who have used a Flexilla garden hose swear it’s the greatest ever made. It also does well in expert testing, where it lives up to its kink-free claims.
The manufacturer says the material is lead-free and drinking water safe, although it’s not tested or certified by any of the agencies that verify those claims. They also say it can withstand temperatures from -40 to 150°F, and owners attest that it holds up well in hot temperatures.
Need a tough garden hose for washing your car, for powering a pressure washer, or that can live outside during the worst winters? Then the Craftsman Premium offering should be at the top of your list.
This is a popular pick for landscape professionals and those who need something that can stand up to light commercial applications, such as mixing cement.
This product is as durable as they come. We saw a number of comments from owners who ran theirs over with their car (accidentally, of course) and reported that the couplings didn’t crush, and the hose was oblivious.
If you’re looking for something that’s a little easier on the wallet, but still easy to wrangle in a small garden, we recommend the Gatorhyde Coiled Garden Hose.
This setup includes the reel, a 9/16-inch diameter, 82-foot hose with a seven function nozzle, and a 6.5-foot leader hose. Many owners like that 82-foot length, saying it’s a nice alternative to having to choose between that standard 50 or 100 feet.
The Hoselink is intended to be wall-mounted and, when mounted, the reel can swivel 180 degrees. You will need a drill for the installation, so keep that in mind.
Users say the reel is easy to install and use, and the hose retracts very easily with the automatic rewind. Many also note that they’ve had one for several years and it is holding up well. The whole setup weighs 30 pounds.
The hose and reel are made from PVC and polypropylene with brass couplers, and stainless steel and plastic fittings. It is not food grade, so it’s probably best to avoid filling the dog’s bowl with this one.
The hose in integral to the reel and cannot be replaced. One nice feature is that the reel keeps the hose protected even in extreme weather conditions.
It’s not as sturdy as a traditional model, and some users complain of leakage and deterioration. However, the latter issue seemed to be more of a problem when the hose was left out continually, rather than rolling it up and storing it after each use.
Ideal for watering delicate new grasses or long, narrow areas like the side of a house, the Gilmour Vinyl Sprinkler Hose is a very versatile choice that can also function as a soaker. Just position it with the white side up for sprinkling, and the white side down for soaking.
The fittings are nickel plated. It measures the standard 5/8 inch in diameter. It only comes in a 50-foot length, but you can attach up to three hoses. Gilmour offers a lifetime warranty.
From those early experiments and delivery methods came the modern anesthesia machine. The purpose of the machine is to mix the anesthetizing agents with other gases and air and deliver it to the patient and keep them under during surgery. The design of the machine has not changed much since it’s invention in the early 20th century. An anesthesia machine is a highly sophisticated piece of medical equipment that has transformed over the years into what we see today. It has hundreds of different parts, moving and otherwise, that make it run. This list comprises just a few of the more important features of a complicated machine that engineers have improved for decades.
Patient breathing circuit—This is how the anesthetic is delivered to the patient, usually a combination of a hose and face mask that fits over the patient’s nose and mouth.
Electronic air flow meters, like the ones that we make at Kelly Pneumatics, are integral to the function and accuracy of anesthesia machines. They are small component parts within the machine, but the work they do is important for the overall performance of the machine. Flow meters help keep the delivery of the gases consistent throughout the entire procedure. Without them, slight changes in the air flow can occur and have detrimental effects on the patient during surgery. Sophisticated pressure transducers and electronically controlled flow control valves make for better accuracy of the gas delivery. Electronic flow meters are much more accurate than their mechanical cousins. They aren’t prone to the problems mechanical ones have, like leaks and breaks. The flow information coming into the meter is shown in a digital format and is more accurate. Some machines will operate with conventional control valves and knobs, but the data is displayed electronically using electronic flow sensors rather than glass flow tubes. These allow for easier visualization and control of the flow as well as easier export of the electronic data.
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