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  • Product Features of High Pressure Flange

    Product Features of High Pressure Flange

    High pressure flange is used to connect pipes or equipment with pressure higher than 10MPa. At present, it mainly includes traditional high-pressure flange and high-pressure self tightening flange. Traditional High Pressure Flange  Overview of Traditional High Pressure Flange  The traditional hig...
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  • Coloring method of stainless steel flange

    Coloring method of stainless steel flange

    There are five coloring methods for stainless steel flanges: 1. Chemical oxidation coloring method; 2. Electrochemical oxidation coloring method; 3. Ion deposition oxide coloring method; 4. High temperature oxidation coloring method; 5. Gas phase cracking coloring method. A brief overview of...
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  • Science popularization of Carbon Steel Elbow

    Science popularization of Carbon Steel Elbow

    Carbon steel elbow is a kind of prefabricated directly buried carbon steel elbow made of high-density polyethylene outer sheath polyurethane foam plastic, which is closely combined with the elbow conveying medium, high-density polyethylene outer sheath, and the polyurethane rigid foam carbon stee...
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  • Thread Tee Related Brief Introduction

    Thread Tee Related Brief Introduction

    Tee is a kind of pipe fitting used for branch of pipe, which can be divided into equal diameter and reducing diameter. The nozzle ends of equal diameter tees are of the same size; Reducing tee means that the size of main pipe nozzle is the same, while the size of branch pipe nozzle is smaller tha...
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  • Socket Weld Flanges and How They Are Welded?

    Socket Weld Flanges and How They Are Welded?

    Basic product explanation: Socket welding flange is a flange with one end welded to the steel pipe and the other end bolted. Sealing surface forms include raised face (RF), concave convex face (MFM), tenon and groove face (TG) and joint face (RJ) Materials are divided into: 1. Carbon Steel: ASTM ...
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  • Elbow size standard and wall thickness series grade

    Elbow size standard and wall thickness series grade

    Type Category Code 45 deg elbow long radius 45E(L) elbow long radius 90E(L) short radius 90E(S) long radius Reducing diameter 90E(L)R 180 deg elbow long radius 180E(L) short radius 180E(S) Reducing joint concentric R(C) Reducer eccentric R(E) Tee equal T(S) reducing dia...
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  • What is the difference between welded elbow and seamless elbow?

    What is the difference between welded elbow and seamless elbow?

    Welded elbow is made of pipe bending and can be welded, so it is called welded elbow, which does not mean that it has welds. In fact, on the contrary, welded elbow is made of straight pipe stamping and bending. Considering the structural stress, seamless pipe is generally used. Instead of welded ...
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  • What are the similarities and differences between long radius elbow and short radius elbow?

    What are the similarities and differences between long radius elbow and short radius elbow?

    Elbows are fittings used to change the direction of pipes in a piping system. Common elbow angles can be divided into 45 °, 90 ° and 180 °. In addition, according to the actual situation, there will be other angle elbows, such as 60 °; According to the material of elbow, it can be divided into st...
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  • Use and Maintenance of Stainless Steel Flange

    Use and Maintenance of Stainless Steel Flange

    Stainless steel flange is an important part of the pipe connection function, many kinds, the standard is complicated. Because of its strong rust resistance and corrosion resistance, it plays a connecting role in the pipeline. Therefore, the primary characteristic of stainless steel flange is the ...
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  • How to choose metal expansion joint and rubber expansion joint?

    How to choose metal expansion joint and rubber expansion joint?

    At present, there are two main types of expansion joints: rubber expansion joints and metal corrugated expansion joints. With reference to different working conditions and applications, the advantages and disadvantages of rubber expansion joints and metal corrugated expansion joints are compared ...
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  • Rubber Expansion Joint and Metal Expansion Joint.

    Rubber Expansion Joint and Metal Expansion Joint.

    The expansion joint is a connector that compensates for the size change caused by thermal expansion and cold contraction in pipe connection. There are two kinds of expansion joints most commonly used, one is metal expansion joint and the other is rubber expansion joint.  RUBBER EXPANSION JOINT Ru...
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  • Corrugated pipe compensator

    Corrugated pipe compensator

    Corrugated pipe compensator also known as expansion joint and expansion joint, is mainly used to ensure pipeline operation. Bellows compensator is a flexible, thin-walled, transversely corrugated device with expansion function, which is composed of metal bellows and components. The working princi...
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  • Rubber Expansion Joint

    Rubber Expansion Joint

    Rubber expansion joint, also known as rubber joint, is a form of expansion joint 1.Application occasions: The rubber expansion joint is a flexible coupling of metal pipes, which is composed of a rubber sphere reinforced with inner rubber layer, nylon cord fabric, outer rubber layer and loose meta...
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  • Differences, advantages and disadvantages between carbon steel and stainless steel.

    Differences, advantages and disadvantages between carbon steel and stainless steel.

    As we all know, there are many kinds of steel on the market at present, such as carbon steel and stainless steel, which are common to us, and their shapes are relatively similar, which makes many people unable to distinguish. What is the difference between carbon steel and stainless steel? 1. Di...
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  • What is the difference between Plate Welding Flange and Hubbed Slip on flange?

    What is the difference between Plate Welding Flange and Hubbed Slip on flange?

    Slip On Plate Flanges: the sealing surface is raised face, which can be used for general media, medium and low pressure occasions. Slip On Flanges:The sealing surface can be convex, concave and grooved. The pressure bearing strength varies withthe sealing effect. It is usually used in medium and...
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  • Differences between Welding neck flange and Slip on flange.

    Differences between Welding neck flange and Slip on flange.

    1. Different weld types: Slip On Flanges: fillet weld is used for welding between flange pipe and flange. Weld Neck Flanges: the welding seam between flange and pipe is circumferential weld.   2. Different materials: Slip On Flanges is machined from ordinary steel plate with thickness meeting...
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  • Common Delivery Methods in International Trade

    Common Delivery Methods in International Trade

         In foreign trade exports, different trade terms and delivery methods will be involved. In the “2000 Incoterms Interpretation General Principles”, 13 kinds of incoterms in international trade are uniformly explained, including the place of delivery, division of responsibilities, r...
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  • Correct installation Method of Rubber Expansion Joint

    Correct installation Method of Rubber Expansion Joint

       The rubber expansion joint can expand and contract axially within a certain range, and can also overcome the offset caused by the connection of pipes in different axial directions within a certain angle, which is convenient for the installation and disassembly of valve pipes. There is a detail...
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  • Air conditioning bellows

    Air conditioning bellows

    Air conditioning bellows: This bellows is a regular shape of the wave like pipe, made of high quality imported 304 stainless steel .  It is mainly used for non-concentric axial transmission with a small bending radius, or irregular turning, expansion, or absorption of thermal deformation of the p...
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  • The Threaded Flange

    The Threaded Flange

    Threaded flange refers to a flange connected to the pipe by thread. When designed, it can be treated by loose flange. The advantage is that no welding is required  and the additional torque to the cylinder or pipe is very small when the flange is deformed. The disadvantage is that the flange thic...
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  • The Packaging and Transportation of Products.

    The Packaging and Transportation of Products.

    In import and export trade, long-distance transportation is inevitable. Whether it is sea or land transportation, it must go through the link of product packaging. So for different goods, what kind of packaging method should be adopted? Today, taking our main products flanges and pipe fittings as...
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  • Stainless steel axial corrugated compensator

    Stainless steel axial corrugated compensator

    Stainless steel corrugated compensator is a flexible structure installed on the vessel shell or pipeline to compensate for the additional stress caused by temperature difference and mechanical vibration. Scope of application ◆ Copper valve series Gate valve, ball valve, globe valve, check valve,...
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  • High pressure flange sealing form

    High pressure flange sealing form

    Traditional high pressure flange is the use of sealing gaskets(oval gaskets, octagonal gaskets,lens gaskets, ect.) plastic deformation to achieve sealing effect,connected to the pipe end, so that the pipe is connected to the pipe parts, the flange has holes, double head bolts to make two flanges ...
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  • Purpose of flange

    Purpose of flange

    Flanges are the parts that connect pipes to each other and are used for the connection between pipe ends; they are also used for flanges on the inlet and outlet of equipment for the connection between two equipment, such as reducer flanges. Flange connection or flange joint refers to a detachabl...
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  • Carbon Steel Flexible Dismantling Joint

    Carbon Steel Flexible Dismantling Joint

    Flexible joint is a connector with flexible function, but in reality, it mostly refers to steel flexible joint, namely, clamp flexible joint and rubber flexible joint. Flexible joints, as the name implies, are connectors with flexible functions, but in reality, they mostly refer to steel flexible...
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  • The difference between RF flange and RTJ flange

    The difference between RF flange and RTJ flange

    1. Different sealing surfaces The RF flange sealing surface is convex. The RTJ flange sealing surface is a ring connection surface. 2. Different uses RF: It’s often used in conjunction with butt welding and plug-in welding. It’s mostly used in cases where the media conditions are rela...
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  • Metal  Bellows Compensator Expansion Joint

    Metal Bellows Compensator Expansion Joint

        Compensator is also named expansion joint, or  slip joint.It is made up of main body with  bellows, bracket structure, and end of flanges, pipe as well as other accessories.Under the effective influence of the  work subject bellows telescopic deformation, the size of the change of piping, pip...
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  • Talking about the heat treatment of elbows after forming

    Talking about the heat treatment of elbows after forming

    Carbon steel elbows are metal pipe fittings that change the direction of pipes on carbon steel pipes. The materials of elbows are cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics, etc.; 45° elbow, 90° elbow and 180° elbow Three kinds of e...
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  • Metal bellows – used in automatic control and measuring instruments

    Metal bellows – used in automatic control and measuring instruments

      Metal corrugated pipe refers to a metal pipe made of stainless steel material with a spiral folded bite and used for pre-tensioned prestressed concrete structural members.   Metal bellows are widely used in automatic control and measuring instruments, vacuum technology, machinery industry, elec...
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  • Double Sphere Rubber Expansion Joint-Good Damping “Expert”

    Double Sphere Rubber Expansion Joint-Good Damping “Expert”

    Rubber expansion joint, as it’s name, is mainly composed of rubber. It has various kinds of styles, and today I’m gonna to introduce one type, the “Double sphere” one. First of all, about the structure. Double ball rubber expansion joint is composed of two flanges and on...
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