RING JOINT FLAG (RTJ) A ring junction flange has a circular groove for a ring joint gasket (oval, or rectangular). The applied bolting force deforms the gaskets inside the flange groove when the two ring joint flanges are bolted together and tightened, resulting in an extremely tight metal-to-metal seal. Deformation of the gaskets also forces them into contact with each other, creating an additional seal.
There are three basic types of ring joint flanges: single-bolt, double-bolt, and tri-bolt. Double-bolted flanges are the most common type used on trucks and heavy machinery. They provide extra security against leakage by using two bolts to attach the two halves of the flange together. Tri-bolted flanges are used on smaller vehicles such as tractors because they are more compact than double-bolted flanges. Single-bolted flanges are used only on special applications where the third bolt is not needed for structural integrity reasons. They are less common but can be found on older equipment.
Ring joint flanges are manufactured from steel plate and include holes for mounting the flange to an axle or hub assembly. The shape of the plate determines which type of joint it will create when bolted together. Ring joints are commonly used on wheeled vehicles such as trucks and tractors to connect two pieces of rotating equipment together.
RING JOINT FLANGE. This is the part of a ring gear that fits inside the hub shell and engages the teeth on the inner circumference of the tire. It is usually made of steel or aluminum, but some are now made of plastic too. The term comes from the fact that it resembles the rim of a wheel (with holes in it) called a "ring", hence the name "ring-shaped joint".
RTJ means "right-hand drive". In other words, it is for the British market only. The RTJ ring gear is designed like this: 1st hole is for locking the gear to the axle, 2nd hole is for locking the gear to the casing, 3rd hole is for locking the gear to the opposite side casing element.
Ring gears have several advantages over helical gears: they require less space, are lighter, and are more rigid. They also have fewer parts, which makes them easier to manufacture and repair.
The first automobiles had ring gears. These were wooden wheels with metal rims attached. The hubs were held together with ball joints that allowed the wheels to turn smoothly.
The most prevalent flange types in ASME B16.5 are, as previously stated, Welding Neck, Slip On, Socket Weld, Lap Joint, Threaded, and Blind Flange. Each kind is described briefly and defined in depth below, along with an illustration.
Welding neck flanges have one flat surface that faces outwards and another flat surface that faces inwards to form a channel for welding. These flanges are used when it is not desirable or possible to make the entire circumference of the pipe or vessel accessible for welding.
Slip on flanges have two parts: a female part that fits over the end of the pipe or vessel and a male part that fits into the hole in the other side. They can be used instead of welding for connecting pipes and vessels together without using metal-to-metal contact. Because slip on flanges only clamp the ends of the pipes or vessels together, they are not considered strong enough for high pressure applications.
Socket weld flanges have two parts: a female part that fits over the end of the pipe or vessel and a male part with a socket that fits into the hole on the other side. They are used when welding is not feasible or convenient around the whole periphery of the connection due to space limitations. The socket allows for insertion of a welding rod from within the joint to join the two ends together.
(First of two entries.) A rib or rim for strength, guidance, or connection to another item; a pipe flange; a wheel flange 2: a protruding edge of cloth used for embellishment on clothes, such as flange shoulders on a jacket. 3a: the upper part of a shaft, especially one at right angles to the lower part and supporting it: as a flanged axle rod. 4a: a raised area like a ledge or band: a flanged wall. 5a: a curved piece with a hole in the middle, used as a handle or to hold things: a key ring/fob chain, a lampshade clamp. 6a: a small flat plate or sheet metal strip bent back on itself: a bushing (or washer) for securing a ball-and-socket joint.
Flange is a common word that comes from the Latin flectare, meaning to bend. So, a flange is a kind of bending thing. Take a look at these images of objects with and without flanges:
Without flange: a shaft, spindle, or axle without a flange on which to mount a wheel or pair of wheels.
With flange: a shaft having a flange attached to its outer surface for support or attachment purposes.
That's all. Have fun learning!
Three stainless steel nuts tightened in uniform rotation seal this flange. This compresses the gasket between the flange tail piece's outside and the cast iron drain's interior. Remember that the flange's bottom must be placed on top of the finished flooring before being screwed into the subfloor. This keeps dirt from getting under the flange when it is mounted on the wall.
A set-and-twist flange has two parts: A threaded shaft with a square cross section, and a nut with a square internal thread. The shaft and nut are usually made of stainless steel for durability. They fit together like a key and lock, with space between them to allow for some movement.
When the flange is installed, the shaft is first driven into the wall until it reaches a drop of about 1/4 inch below the finished floor. Then the nut is turned so that its threads catch the sides of the shaft hole, holding the flange in place.
The advantage of this type of flange is that the depth of the shaft hole can be adjusted after the nut has been turned several times to match the thickness of the wall material. So if wood is used as the wall material, the shaft hole can be enlarged or reduced to accommodate changes in the wood's thickness. If the shaft hole is too large, water may leak behind the wall material into the room below.
Flange Mechanical, pneumatic, or hydraulic actuation is used for boss flange spreaders. The spinning Cam-Wedge design with a flexible hex drive attaches to the flanges through the bolt holes, locking flange spreaders to the pipe and preventing them from slipping out. This type of spreader is commonly used on water pipes because they are easy to install and remove.
Boss flange spreaders are used when it is necessary to spread large flanges apart so that you can work on either side of the pipe. These spreaders have two parts: a hub that fits over the ends of the pipes and a wedge that is driven into the hub to spread it open. The boss spreader has many applications such as spreading radiator caps, valve stems, steam traps, and other large metal objects.
These spreaders are available in different sizes so they can fit objects of varying dimensions. In addition, the type of actuator used (pneumatic, mechanical, or hydraulic) determines how the spreader is activated.