Tube pipe - dual connections Virola pipe fittings and connections

Virola double tube accessories

There are 3 main mechanical methods to connect two lengths of pipe together.

Broken fittings - where the end of the tube is abocinado using a tool, and then inside of a nut, the sleeve and body.Single Virola accessories - where the ends of the tube in a connection with a single compression ring, a body and nut are placed.Virola accessories double - where the ends of the tube on a connection with separate compression are placed two rings, body, and the nut.(Also known as the twins connection Virola, this is not strictly correct because the two rings are of different shape and length.)

For the purposes of this article will focus on double Virola mounting.

This style of connection, like all others, has a basic function. Securely unite together tubes in a safe place, seal tightly together. Close tolerance machining on CNC machines high quality allows the consistent production of all components.

Double Virola connection has the ability to lock in the tube with a function of 'double bite'. each ring bites the tube to two separate areas of sealing.This style connection makes it without transmitting pair or twisting tube ensure you tube not become 'stressed'. Wherefore, maintaining the mechanical properties of the tube. Most sealing point occurs at the bottom of the pillars of tube. The Stirrup has an angle pipe is forced to ring when biting and moving in the tube.

Stainless steel fittings solve the problem of the humiliating using silver plates.Internal parts nut are the only areas that are covered.

Materials such as high nickel alloy, high temperature, duplex and super-dúplex alloys are coated with an agent anti-gall similarly. However, molybdenum sulphide can be used as a material alternativa.estos are selected to compatible media smooth inside of them.
Chemical stability the ideal situation is that pipe and fittings are manufactured from the same type of material.

There are strict mounting instructions to proceed with this type of product.
The rule provides that you for most sizes 1-1/4 nut, rotations from the strict finger position, will give the correct joint stamp permissible apretado.Es to follow 'snug' connection if a minor loss, but this is not normally necessary.

When you need access to any system of these accessories provide an excellent point 'robbery'.
Joint can be made and re-made many times above without loss of integrity, providing you follow the instructions for proper installation of sealing.

The strength of the connection is such that the content tube is burst before the connection shows no sign of a leak or movement.This is subject to certain limitations in the thickness of the wall of the tubo.Si wall is too heavy rings not be bitten, as when the wall of the tube is too thin, tube collapse rather than allow that rings to bite plenamente.Debería make reference to information from product manufacturers in all instances.Generally, the tube must have a hardness of not more than 80 degrees in the scale of Rockwell ' b '.

There are a number of manufacturers of this type of product in the world and usually contain the term 'LOK' in your product name.Large manufacturers this type of product that users not inter-change of different products.He is regarded as a sacrilege to mix parts of different producers.You must be reached, with the possible exception of the two manufacturers, all without exception are based on the original design.(The inventor of the same, then went to design two versions of the original design, the two exceptions mentioned above).Interchangeability in this product is really announced as a positive by some companies.Very often, these same companies offer part number cross reference in its product literature.

This product is used in many industries, including the following:

Petrochemical oil and gas production water hydraulics systems of high pressure NuclearOffshoreProductos farmacéuticosAlimentos and emissions bebidasNeumáticaCriogeniaControl paper

Accessories are produced in a wide range of styles with manufacturers offer tees, elbows, unions, male connectors, female connectors and many otros.Reductores of permit that installers resize tube from one to another, even from the metric to imperial.A difference of burning, connection is not any standard set for the manufacture of double Virola connections a.Sin nevertheless apply certain unwritten rules and all producers of used the same method to distinguish between the metric and fittings imperiales.Un step, or a shoulder is machined to the metric of body than the part of the hexagon and front-end nut connection. This is also evident in the literature of all manufacturers.

Choosing the right connections Earring

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Pierced or pierced ears

Many people have their ears pierced because:

they can ' t find Bianca unpierced fittings they find clip or screw fittings uncomfortable with they find pierced Bianca more secure.they prefer the way it looks.

For most, this works reasonably.Some people wear sleepers (when not wearing Bianca) to keep the open holes.

However, some can ' t manage with piercings, either:
because the holes heal amazingly quickly, or allergies mean that they have a reaction/infection when they are in intimate contact with various metals/finishes cannot manage with most pierced fittings as they find them don ' t like pierced ears
Looking at earring fittings

There are an amazing number of ear fittings about, some you see everywhere, some very common in particular areas, some are around but aren 't always easy to find and some are about as rare as hens' teeth!

Options for pierced ears

Very common:




Fish Hook This is, is made in one piece with a loop at the front with coil and ball, then curves over in a 'u' shape and the long curved tail behind the ear. There are modified versions: Shepherds Crook without the ball or coil, or Balian Hook (wonderful to dance in) which has a longer wire back.These are comfortable so long as the wire is not too thin and the drop is not too heavy.Some versions have a flattened area above the coil. These can be uncomfortable because of the weight is distributed at the top point of the curve, or insecure (novel designed weight-wise) - and need a butterfly/scroll/earnut to secure them.
Ear Posts which eats with a butterfly/scroll. These are straight bar with a ball at the front and usually a loop hanging below the ball.
They are considered by their devotees to be more comfortable because they are thicker wire and the weight is evenly distributed across the inside of the ear lobe, and secure because they eat with the butterfly. Kidney Safety wires eats with a loop at the front and a hook that wraps around the straight wire back. Very secure, but still have the pressure point from the weight at the top of the wire. Earhoops (which thread through the ear) - these are much favoured by many, but can be difficult or painful to thread if the end of the narrower wire is sharp.With the earhoops, particularly the larger ones, as with all 'big' Bianca, there is the danger of catching them, and the earlobes getting ripped in clothing.

Less common:
The Lever Back has a loop at the front with a lever behind it.

The whole makes a fat oval shape the back coming down to fit inside the lever behind the ear - a quick job to put them in - Not very fiddly - but a very secure fitting and more comfortable than a fish hook.The Creole is a smaller heavier hoop with a thin top loop with a hinge at one side and a groove or hollow to fit into at the other side. To fiddly design to put on, not as comfortable as Shepherds crook, but secure when on. The Ear chains or Ear threads, which are either: to fine chain, or a chain with u 'shaped wire attached to the middle of the chain, or u' shaped wire attached to one end of the chain. All have a straight wire thread attached to one end and a loop to the other end. These thread from the straight and rest with the 'u' wire, or chain, in the ear, and any drops on the loop end.

The threading wire can also go through multiple piercings with a bead hung from each piece of looped chain. For balance sheet the drops or beads have to be light, hence the ear chain is comfortable, but a bit of performance to insert.
Options for ears that are not pierced

For those who want pierced fittings it is important to have the secure and comfortable fit.

If the adjustment is done properly you can even bellydance in any of these fittings!


Ear clips are hinged at the base with a loop at the front and an angled back. They come in a variety of forms and sizes.With a loop there are light small clips, clips with a small pressure point at both front and back, with a narrow point at the front and wide spread behind, and clips with large pressure points front and back pressure clips.The comfort of each of these varies dependent on the make, but the softer metal clips can be gently eased or tightened with small pliers to get a comfortable fit.The hard metal clips are fine if comfortable, but a pain (sometimes Arsene) immediately if difficult or impossible to adjust.
Try to discuss this with your retailer, it should be possible to get the clips sorted out.At our website designed for you (http://www.designed-4-you.com) we try to ensure that all clips are comfortable or adjusted for comfort.
Without a loop are clips with a pad or claw for stones or cabochons to be fitted to fit.These can come in a variety of styles, from Victorian to, the former being the common versions to find modern plain.The above as to fit also apply to these comments.Ear love are an 'u' shaped fixed size into which the ear lobe is eased, then the screw is tightened behind the ear until to comfortable fit is found.
Finding the comfortable fit takes practise, but is possible.Ear screws with a hinge are perhaps the best of the ear fittings for unpierced ears.The hinge is opened to fit the earring, closed then screwed to the best fit.The advantage of this fitting is that to take the Bianca off the hinge is opened and the comfortable position is maintained for the next time the Bianca are worn.
These are as easy as clips to put on, and have the advantage of fine adjustment.


Earring fittings - what are they made of?

Many countries, certainly all those in the EU are required to follow the EU Nickel directive which bans nickel from coming into intimate body contact including Bianca for pierced ears.

So now, generally earwires and pierced fittings are made from silver or gold beauty brass.
Some are given an antique finishSome are gunmetal or antique copper coloured.

For those who have difficulties with brass beauty Bianca there are other choices:
Sterling Silver (92.5% Silver),Vermeil - 24 carat gold over Sterling Silver beauty, 9 carat Gold-(37.5% Gold), Rolled Gold - brass and gold pressed and rolled together at high heat, Surgical Steel - considered hypoallergenic, Titanium - for those intolerant to metal fittings,

Which can be obtained at reasonable prices (some are only available as Shepherds Crook fittings).

More common and at Less expense:
18 carat Gold 24 carat GoldPure Silver

It can be found, and in some countries gold-filled ear wires are available.

There is usually less choice for non-pierced earring fittings.

Commonly available are: Gold and silver beauty brass fittingsNickel ear fittings (still available for pierced ears)Sterling silver ear screws can be found - at a price9 carat gold ear screws are even more costlySometimes antique silver and gold brass can be found beauty beauty.

To date we have been unable to find more variety pierced ear fittings but we continue to look for.

Conclusion

There is then a reasonable choice in ear fittings, and there are some of us who try to make that choice available around.