Reducer is a kind of pipe fittings used in pipe size

Seamless reducer

Reducer is a kind of pipe fittings used in pipe size. Usually adopted for reducing the forming process of pressing, expanding to suppress or reducing and expanding, to certain specifications of the reducer and stamping can be applied.

Reducing diameter

Size reducing forming technology of the head is with the head big end diameter equal to the size of the pipe into the forming die, along the axial direction of tube billet by pressing, shrink along the cavity movement and metal forming. According to the size of the reducer, divided into the one of pressing or more press forming.

stamping

Besides using steel as raw material to produce the size of the head, on the part of the specifications of the size of the head can also be used steel plate stamping forming technology is adopted to improve the production. Used by stretching die shape inner surface size design with reference to the size of the head, use after blanking punching die, stamping steel stretch forming.

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steel elbow

Long-term storage of stainless steel elbow, should be regularly checked, often on the exposed surface must be kept clean, remove dirt, neatly stored in a dry and ventilated indoor place, is strictly prohibited stacking or open storage.Often keep the stainless steel elbow dry and Ventilate, keep the clean and tidy, according to the correct storage method of storage

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Welding neck flanges

The heavy welding neck flanges are also named heavy WN flanges, which are

hot formed from a circular section of steel plate having a very small co-axial

hole in the flange center. The steel around the hole is shear-formed downward

and outward by a tapered die plug which is forced by the small hole forming an

integral neck on the weld neck flange. A supporting ring die is radiused at its

inner corner to form a suitable fillet radius at the junction of the neck with

the flange proper. A suitable pre-forming or post-forming operation may be

required to compensate for any deflection in the work piece out of planar

configuration.

Tianjin skyline Group is pipe and fittings manufacture

Tianjin skyline Group is a famous pipe and fittings manufacture. In order to explore the market in abroad, we decided to recruit foreign trade sales manager 10 persons to sell pipe fittings, flanges, fluid pipes and oil pipes etc to all over the world.
Request:
1. English grade, No less than grade four.
2. Love sales business and better have a related steel pipe or seamless pipe sales experience.
3. Working hard. Because the time zones, we need the sales manager should be on work anytime that clients need him.
4. Salary is base on carbon steel seamless pipe and steel pipe fittings field rule.
If you are interested in this work please contact with us.

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Manhole flange

FLANGEManhole flange according to the division it can be divided into

through-hole, three holes, four holes and oblique through-hole man, specifically

in Table 1 below. Among them, oblique through the hole is divided into 15 °, 30

°, 45 °, 60 °, 75 ° total of five. The angle of each oblique through hole can be

applied within ± 7.5

skylinepipes is a famous pipe and fittings manufacture

skylinepipes  is a famous pipe and fittings manufacture. In order to explore the market in abroad, we decided to recruit foreign trade sales manager 10 persons to sell pipe fittings, flanges, fluid pipes and oil pipes etc to all over the world.

Request:

1. English grade, No less than grade four.

2. Love sales business and better have a related steel pipe or seamless pipe sales experience.

3. Working hard. Because the time zones, we need the sales manager should be on work anytime that clients need him.

4. Salary is base on carbon steel seamless pipe and steel pipe fittings field rule.

If you are interested in this work please contact with us.

Bend Pipe

The flow in centrifugal fan and 90° bend pipe was simulated numerically by the RNG k-turbulent model in software Fluent, and obtained the distribution diagram of the pressure and velocity. From the distribution diagram of the pressure and velocity, for measurement, three measurement points must be chosen, and two of them should be closed to the wall of pipe. However, in order to insure the measure accuracy, five or six measure points should be chosen. In addition, the velocity distribution of pipe bending reaches well-distibuted at the 1000 mm away from pipe exports. That is fluid flowing after through the flow field of bending section tends to uniform soon, so for the greater curvature bend pipe, measurement is more convenient.

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Welded Steel Pipe fittings

As the development of pipe industry, pipe and pipe fittings, including pipe coupling, pipe tee, pipe elbow are more and more widely use in industrial area. There are four types of welded steel pipe that are mostly used:
1. Welded steel pipe: it is also called welded pipe. It is shaped by steel plate or steel strip through bending and then welding. It is divided into seam welded pipe and spiral welded pipe. According to the application, it is divided into general welded pipe, galvanized welded pipe, oxygen blowing metric welded pipe, welded pipe, wire casing, roller tube, deep well pump pipe, auto tube, transformer, electric welding thin wall pipe, welded pipe and spiral welded pipe.

2. General welded pipe: general welding work for low pressure liquid. It uses Q195A, Q215A, Q235A steel and adopt other mild steel welding for manufacturing. Steel pipe needs to be tested through pipe pressure, bending, flattening and some experiments, and there are some specific requirements for the surface quality. Usually the delivery length is for 4 to 10m. Welded pipe wall thickness is divided into two kinds: thread steel pipe and threadless steel pipe.

3. Seamless pipe: with increasing tube welding technology and simple processing, now seamless pipe has been replaced by welded pipe. Welded pipe producing capacity has been more than 219 mm (8 inches).

4. Oxygen tube welding: it is used for steelmaking oxygen tube. It generally uses small diameter welding pipe. Its specifications range from 3/8 inch to 2 inch. The welding is made of With 8, 10, 15, 20, or Q195 steel strip. For corrosion protection, some of them need aluminized processing.

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Rotary Draw Bending

For accuracy work, rotary draw bending controls television bending landscape, specifically for those applications including tight radii– in some cases to a CLR that’s simply 0.7 times television OD (or as tube processors call it, less than 1 × D). This procedure offers you optimal control over wall thinning and ovality. Rotary draw bending supports the circulation of the product throughout bending utilizing a mandrel in television ID and accuracy tooling on the outside (see Figure 8).tube-and-pipe-basics-how-to-achieve-the-perfect-bend-2

A rotary draw setup involves a pressure pass away that holds the straight area (in some cases called the tangent) of television; a clamp pass away that turns the workpiece around a round bend die; a mandrel, often with a series of articulating balls on completion to support television interior around the bend; and a wiper pass away that contacts the workpiece prior to the tangent point of the within radius, cleaning versus the product to prevent wrinkles that can form on the bend’s within radius.

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Important to Take Care of While Welding Steel Pipes

Some precautions to be taken while welding pipes, otherwise it will hazard the welding process and pipes as well. Welding process differs significantly depending upon the shape, material specification of steel pipe. Some kinds of steel necessitate pre-heating and pre-cooling in order to ensure crack and burst. MIG and TIG are the most reliable and effective tools for welding pipes besides propane torch. As we know that heat forms quickly on steel pipe, so the pipe gets hot enough to spawn burns in a short while. Purging with argon gas is the most critical part of welding steel pipes, this method is conducive to safeguarding the backside and inside of the pipes.
You make sure that there should not be even a small amount of water else it will thwart purging.
Make a vent into the upper part of the pipe and fill it with argon gas that will dispel water that accumulates in the pipe.
It is tremendously important to check the flow of argon gas, because the higher flow of purge gas does not mean that welding process gets quicker than a lower flow rate. More gas flow is not always useful, it sometimes devastates the purging work. So much gas is as bad as little gas. Set the rate of gas flow about 15 to 20 cfh, that actually depends on nozzle diameter.
Leaving the gap of 1/16th inch for weld between the two pipes is recommendable. Checking the quality of weld is the most important factors. If the weld gets oxidized, it gets infirm and may contaminate the product, and the repair of the oxidized pipe is expensive. Therefore stop oxidation by eliminating oxygen in the first place with the help of purging gas that is heavier than air. Purging gas not only removes oxygen but also protects the welded joint unless it cools off. It is crucial to keep oxygen below 70ppm in order to avoid damage to the weld.
It is advisable to heat up the end of the pipe, that will facilitate the welding process. Welding rods and solders are essential materials, generally used to bond during welding. Make sure that you should melt the welding rod onto the joint of the pipe. Propane torch is effective method to solder the joint. The entire area of the pipe joint should be covered during welding. Let the welded joint cool up. Eventually check out the soundness of the joint by exerting pressure on welded area of the pipe. Welding stainless steel pipe requires heat control that needs patience.

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