How to make the pipe fittings more resistant

When a piping project not works well, the steel pipes and pipe fittings are always facing the wear resistant problem ,especially when some impurity, sands,slurry in the flowing liquid .  Some technical measures should be taken to reduce wear and tear about pipe and fittings .

1.We should assess the liquid condition when choose the steel material of the pipe fittings . Should we use the common steel material?  or the wear resistant steel ? or should we arrange the wear resistant coating or lining materials? cement lining or ceramic lining?

2. The special treatment for pipes or pipe fittings. For example , the steel elbows. The outer radius of the elbow is grinded most seriously,  we can add some thickness to this part of the elbows.  This is also happened to other pipe fittings, like tees , reducers.

3. To the steel pipes , concentric reducers and caps ,  they can rotate in any degree and piping system . When they are in the horizontal direction ,  due to wear of the maximum bottom, on both sides, followed by the top of the minimum, therefore, the pipes an fittings could periodically inverted, it will extend the life of the piping system .

4.The position, direction and the angle of the pipe fittings also will effect the abrasion situation . If the position is not suitable , the flowing liquid will cause cavitation. The cavitation will speed up the abrasion of the pipings

How to Properly Stack Spiral Pipe

Spiral pipe stacked right help protect the quality of spiral steel pipe, spiral steel pipe prolong life, prevent deformation, erosion, so orderly stacking spiral steel pipe, but also conducive to late spiral pipe loading, inventory. Spiral Pipe buyers should also strictly in accordance with the requirements of spiral steel pipe pile.

1) Spiral pipe open dumps, following necessary pad with wood or stone, stack surface needs slightly tilted to facilitate drainage, and pay attention to the material placed flat to prevent the causing bending.

2) Spiral pipe principle requires stacking under palletizing firm to ensure the safety of the premise, to do according to species, palletizing specifications, different varieties of materials to palletizing respectively, to prevent muddy and mutual erosion, but also easy to install a library car.

3) Prohibit storage of steel aggressive action items in spiral steel pipe pile position around.

4) Spiral steel pipe pile bottom should be padded, strong, smooth, prevent moisture or material deformation,

5) The same material by successively respectively stacking storage.

6) Sspiral steel stacking height, artificial homework does not exceed 1.2m, mechanical homework does not exceed 1.5m, stack no larger than 2.5m,

7) Be left between the stacks and stacks of certain passages, check road is generally O. 5m, of access depending on the size and material transport machinery, generally is 1.5 ~ 2.0m,

8) Open dumps angles and channels should stoop to put that mouth down, beam shall stand up, you can not be up and groove steel to avoid rusting water.

9) The end of booster stack, if the warehouse sunny cement floor, to elevate O.1m, if the mud shall booster O.2 ~ 0.5m. If it is open space, concrete floor booster 0.3 to 0.5 m, the surface mud booster 0.5 ~ 0.7m.

Size Deviation of SSAW Steel Pipe

Size deviation mainly in the SSAW steel pipe is straightness, roundness, aspects of uneven thickness.

In most cases, straightness tolerance for the use of spiral steel pipe under large, but the manufacturing standards for spiral pipe straightness requests, if the predetermined value is exceeded, would constitute a reason to return, and therefore, spiral pipe plant should still be noted.

Roundness tolerance will affect the use of spiral steel pipe, mainly in the group of the wrong side of the welding head. Roundness tolerance has led to the wrong side of the welded joint will not only reduce the pressure capability, but also stress concentration. When the site Group, roundness some pipe can be corrected. Outside diameter deviation and the impact on the spiral steel pipe used roundness tolerance fairly.

Non-uniform wall thickness generally easy to be ignored, and many spiral steel pipe standards are not clearly defined. If the wall thickness Uneven, it will not only result set to the wrong side of the joint, but also the secondary deformation processing (such as steel pipe manufacturing pipe) adversely affected.

Design Conditions of Spiral Pressure Pipeline

On engineering, process operating parameters should not be used directly as a pressure pipeline design conditions, factors to consider process operating fluctuations, the impact of connected devices, environmental impact, etc., and on the basis of operating parameters of the process are given a certain amount as a design safety margin condition. Design conditions mentioned here mainly refers to the design pressure and design temperature.

SSAW steel pipe design pressure: when should not be less than the normal operating pressure under the most demanding conditions by the internal pressure (or external pressure) and temperature constituted.

The most severe conditions: is the lead pipe and piping components maximum wall thickness or the maximum nominal pressure rating conditions.

Design pressure determination: consider the medium hydrostatic pressure and other factors, the design pressure should generally be slightly higher than the maximum working pressure under the most demanding conditions by (or on) the external pressure and temperature constituted.

Seamless Tee Manufacturing Method : Hot-drawing Forming

The hot-extrusion process consists of enclosing a piece of metal, heated to forging temperature, in a chamber called a “container” having a die at one end with an opening of the shape of the desired finished section, and applying pressure to the metal through the opposite end of the container. The metal is forced through the opening, the shape of which it assumes in cross-section, as the metal flows plastically under the great pressures used.

Tees using raw material with a bigger diameter than the finished product, the branch outlet is extruded from pipe while the main body is being pressed. The outlet’s wall thickness can also be adjusted as needed. Applied to Tees with large diameters, heavy wall thickness and/or special material with challenging workability that cannot be manufactured using the hydraulic bulge method.

Requirements and Measures of Scaffolding Fireproof

Various types of scaffolding fire should work closely with the construction site fire protection and measures should primarily do the following: 

1) scaffolding should be placed near a number of fire extinguishers and fire-fighting equipment, should understand the basic usage and basic knowledge of fire extinguishers. 2) must be cleared up on the scaffolding and Lee carried away construction debris around 3) on the temporary scaffolding or scaffolding near the hot work must be handled in the hot work permit, prior to clean hot work site or non-combustible materials are separated, fire-fighting equipment configuration, and a personal supervision, with the flare types of cooperation, coordination. 4) no smoking on the scaffolding. Strictly prohibited foot rack or store near combustible, flammable and explosive chemical materials and building materials. 5) manage the power supply and electrical equipment, power production must be stopped to prevent short circuits, maintenance or operation of electrical equipment under power to prevent arcing or spark damage scaffolding, or even cause a fire burned down the scaffolding.  

6) use of fire (welding, gas welding, torch, etc.) according to the Fire Services Ordinance and construction unit, construction units apply the provisions of the use of fire and approval procedures, approval and taken certain security measures before being allowed to work.

More about seamless pipe sizes

Seamless Piping are popular in everywhere, commercial buildings, industrial plants and even homes. They have a large range of sizes and can be seen to occur in several forms. With such

an extensive range of use for the products, it is quite beneficial to the suppliers as they have a constant demand. When they are used in the different kinds of constructions, it becomes imperative to have the right kind of material used to build them. Instead of that, it is better to use the products from reputed manufacturers. 

Basic information about tubes There are no right and wrong materials for the piping among the commonly used products. The major difference comes from the use they are put into. When the right material is used for a wrong process, it could be a disaster. ASTM A53, A106, A179, A500 and A501 are some of the popular standards which are used in the manufacture of the seamless pipes made from carbon steel.