"Established in the 2005, we, Shivshakti engineering , are among the prominent manufacturers, suppliers, traders and importers of a wide range of optimum quality Industrial Fittings. The stainless steel, which is best in the market, is manufacturing of the offered industrial fittings. Offered product range is comprises Pipe Fittings, Industrial Valves and Industrial Balusters. Due to their longer functional life, accurate dimension, resistance to corrosion, high tensile strength and sturdy construction, these industrial fittings are highly demanded in the market. Offered by us at industry leading prices, these products can be customized as per the specification provided by our customers."

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ALL TYPE MANUFACTURING S.S PIPE FITTING AND SUPPLIER

An elbow is a pipe fitting installed between two lengths of pipe or tubing to allow a change of direction, usually a 90° or 45° angle, though 22.5° elbows are also made.

The ends of pipe elbows may be machined for butt welding , threaded , or socketed , so the elbows are consist of butt weld,thread elbow, socket elbow and other series.

LR or SR elbow to use?

L/R - Long radius, S/R - Short radius

• The short radius elbow is used in tight areas, while the long radius is used under normal working conditions.

• The long radius elbow is better than short radius elbow when it is scoured and worn.

• The position of the two elbows should be determined according to the practical conditions, because the positions are necessary.

• The reducing elbow eliminates one pipe fitting and reduces the welding by more than one-third.

Elbows are design features as below

• 90 Degree Elbow – where change in direction required is 90°

• 45 Degree Elbow – where change in direction required is 45°

ELL & ELLS

• A wing of a building at right angles to the main structure.

• A right-angled bend in a pipe or conduit; an elbow.

A typical elbow with elbow angle

” All bends are elbows but all elbows are not bends.”

Infact, the pipe is bent to form an elbow.

Elbows are pre-fabricated and are firm in design.

There are issues with bends since the tickness at the bend radius reduces as we bend the pipe.

Bends typically have a minimum bending radius of 1.5 times pipe radius (R). If this bending radius is less than 1.5R, it is called Elbow. Reference to any international / industry standard need to be traced. 1.5, 3 and 4.5 R are the most common bending radii in industry.

An elbow is also typically a sharp 90 degrees and often is a separate piece.

Sharp bends are normally called Elbows.

An elbow is also typically a sharp 90 degrees and often is a separate piece.

A bend is typically of the same material and typically a more gentle bend to prevent kinking.

A bend typically flows smoother since there are not irregular surfaces on the inside of the pipe, nor does the fluid have to change direction abruptly.

The most basic difference of them is the elbow relatively short than bend, R = 1D to 2 D is elbow More than 2D is bend. In the production process, cold bends can use Bending Machine to bend by ready-made straight bend. One-time completed also don’t need second corrosion. But elbow need manufacturers make to order, to do anti-corrosion, order cycle is long. Elbow price is higher than bend. But cost performance is much higher than bend. It is well-known that bend do not have anticorrosive processing is easy damaged, but the price is cheap so are used very much in some demand which not very high engineering.

In the west-east gas transmission of course, cold bends cost is low. elbow need manufacturers make to order, needs corrosion, order cycle is long,but cold bends can use ready-made straight bend by Bending Machine to bend. One-time completed also don’t need second corrosion. The cold bend construction technology need follow oil standard .west-east gas transmission have the enterprise standard,but we can use either elbow nor bend in open area. Sunny Steel Enterprise warn broad customers betweenness elbow and bend performance price is differ ,please carefully choose after consider it.

Elbow angle can be easily calculated using simple geometrical technique of mathematics.

Elbow Radius:

Elbows or bends are available in various radii for a smooth change in direction which are expressed in terms of pipe nominal size expressed in inches. Elbows or bends are available in three radii,

a. Long radius elbows (Radius = 1.5D): used most frequently where there is a need to keep the frictional fluid pressure loss down to a minimum, there is ample space and volume to allow for a wider turn and generate less pressure drop.

b. Long radius elbows (Radius > 1.5D): Used sometimes for specific applications for transporting high viscous fluids likes slurry, low polymer etc. For radius more than 1.5D pipe bends are usually used and these can be made to any radius.However, 3D & 5D pipe bends are most commonly used

b. Short radius elbows (Radius = 1.0D): to be used only in locations where space does not permit use of long radies elbow and there is a need to reduce the cost of elbows. In jacketed piping the short radius elbow is used for the core pipe.

Here D is nominal pipe size in inches.

There are three major parameters which dictates the radius selection for elbow. Space availability, cost and pressure drop.

Pipe bends are preferred where pressure drop is of a major consideration.

Use of short radius elbows should be avoided as far as possible due to abrupt change in direction causing high pressure drop.