News
-
The main performance differences and similarities between metal hose and bellows compensator?
Only air tightness is better than metal hose. Because the bellows is made of integral material, and the metal hose is a flexible element wound by stainless steel tape, there is inevitably a slight air leakage problem. However, with the continuous progress of metal hose technology, its air tightne...Read more -
What is the difference between socket welding flange and butt welding flange?
Socket welding and butt welding are common welding connection forms of flange and pipe. Socket welding is to insert the pipe into the flange and then weld, while butt welding is to butt weld the pipe and the butt surface. The socket weld of the socket welding flange cannot be subject to radiograp...Read more -
An Introduction of Dismantling Joint
Introduction Dismantling Joint refers to the pipeline compensation joint, which is a new product connecting the pump, valve, pipeline and other equipment with the pipeline. It is connected by bolts to make it a whole and has a certain displacement. It is divided into AY type gland expansion joint...Read more -
What do you know about EPDM?
Introduction to EPDM EPDM is a terpolymer of ethylene, propylene and non-conjugated dienes, which began commercial production in 1963. The annual consumption of the world is 800000 tons. The main characteristic of EPDM is its superior oxidation resistance, ozone resistance and corrosion resistanc...Read more -
What do you know about PTFE?
What is PTFE? Polytetrafluoroethylene (PTFE) is a kind of polymer polymerized with tetrafluoroethylene as monomer. It has excellent heat and cold resistance and can be used for a long time at minus 180~260 º C. This material has the characteristics of acid resistance, alkali resistance and resist...Read more -
Several trade terms commonly used in trade
In the 2020 General Rules for the Interpretation of Trade Terms, trade terms are subdivided into 11 terms: EXW, FOB, FAS, FCA, CFR, CIF, CPT, CIP, DAP, DPU, DDP, etc. This article introduces several trade terms that are frequently used. FOB-Free on Board FOB is one of the commonly used trade ter...Read more -
Difference Between FF Flange and RF Flange Sealing Surface
There are seven types of flange sealing surfaces: full face FF, raised face RF, raised face M, concave face FM, tenon face T, groove face G, and ring joint face RJ. Among them, full plane FF and convex RF are widely used, so they are introduced and distinguished in detail. FF full face The cont...Read more -
An Introduction to Concentric Reducer
The reducer whose center is in a straight line is called concentric reducer. The commonly used forming process is reducing, expanding or reducing plus expanding, and stamping can also be used for reducing pipes of certain specifications. Product specification: 3/4 “X1/2″ — 48 &...Read more -
An Introduction to Eccentric Reducer
Eccentric reducer refers to the reducer whose center is not on the same straight line. Its function is to stick to the wall or stick to the ground to walk the pipeline without occupying space, and it is to connect two pipes with different diameters to change the flow. Product specification: 3/4...Read more -
What do you know about the Reducer?
Reducer is one of the chemical pipe fittings, which is used to connect two different pipe diameters. It can also be divided into concentric reducer and eccentric reducer. Reducer material: including stainless steel reducer reducer, alloy steel reducer reducer and carbon ...Read more -
Classification of expansion joints
Expansion joints include various forms: rubber expansion joints、metal expansion joints and Dismantling Joint Classification by structure. 1. Single type ordinary expansion joint (1) Single type ordinary expansion joint with tie rod: used to absorb lateral displacement and axial displacement i...Read more -
What do you know about the Spectacle Blind?
The spectacle blind plate is named for its shape like an "8", which can be used to isolate or connect the pipeline system. The spectacle blind is a steel plate with fixed thickness divided into two discs. Two discs are connected by flat steel, one of which is a solid dis...Read more -
Distinction between bellows and compensators
Product Description: Bellows Corrugated pipe（Bellows） refers to a tubular elastic sensing element connected by folding corrugated sheets along the folding direction, which is a pressure measuring elastic element in pressure measuring instruments. It is a cylindrical thin-walled corrugated ...Read more -
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...Read more -
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...Read more -
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...Read more -
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...Read more -
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 ...Read more -
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...Read more -
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 ...Read more -
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...Read more -
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 ...Read more -
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 ...Read more -
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...Read more -
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...Read more -
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...Read more -
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...Read more -
Socket Welding Flanges
Socket Welding Flanges refers to the flange where the pipe end is inserted into the flange ring ladder and welded at the pipe end and outside. There are two kinds: with neck and without neck. Necked pipe flange has good rigidity, small welding deformation and good sealing performance, and can be ...Read more -
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...Read more -
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...Read more
