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Manufacturers of hydraulic tubing joints introduce four common hydraulic pipe connection methods

Author: Huatai Hydraulic Source: creapax.com Time: 2017-5-31 Views: Baidu

Manufacturers of hydraulic tubing joints introduce four common hydraulic pipe connection methods


In addition to the three connection methods of the pressure connection, ring pressure connection and card convex connection, there are four commonly used pipeline connection methods, which are the following four:
The principle of mutual connection using flange connection method: use bolts to fasten, connect the two connecting pieces carrying the flange piece together, and use plane sealing piece to achieve the sealing effect and obtain good connection effect.
The advantages and disadvantages of this connection method are: 1. it can be disassembled; 2. the strength of the interconnection is relatively high; 3. the installation is simple and convenient, and the weight is stable; 4. the cost of using the flange is too high.
Adopt groove connection method The connection principle of this method is: use the nut that fixes the pipe fittings tightly, press the pipe and pipe fittings carrying the convex ring in the direction of the bearing, and use a tapered closed ring to stop the water to obtain Good connection effect.
The advantages and disadvantages of the groove connection are: 1. it can be disassembled; 2. the pipeline has a processing process of rolling the concave ring at the end of the pipeline when it is installed; 3. the cast clamp costs more money; 4. it cannot Use this connection method in pipelines with negative pressure.
Adopt the welding connection method to connect the principle: the hot-melt treatment process is used to fusion-weld the two connectors to obtain a good connection effect.
The advantages and disadvantages of this connection method are: 1. The strength of the interconnection is high; 2. The gas maintenance of the weld seams at the actual work place is difficult to meet the standard, which causes the weld gap to be easily rusted, which directly reduces the service life of the pipeline. ; 3, the installation quality is relatively technically dependent on the welding personnel, and the quality is difficult to reach a stable state.
The connection principle using a conical thread connection method is: use a pipe fitting or a pipe that is directly screwed tightly to tighten the two connection parts carrying the inner and outer joints of the conical pipe thread, and use the pressure of the connection port thread to seal to obtain a good connection effect.
The advantages and disadvantages of this connection method are: 1. It can be disassembled; 2. The strength of the connection mouth meets the strength required by the pipe body; 3. The installation is simple and convenient, and the quality is stable and reliable.
There are many ways to connect pipes and tubes. Different connection methods have different advantages and disadvantages. When choosing to use, you must choose the most appropriate connection method according to actual needs. You cannot blindly trust others. The following are the advantages and disadvantages of the three connection methods of stainless steel pipes and their connection principles:
The connection principle of the compression type connection method: use the contraction external force in the diameter direction to clamp the pipe on the pipe, and use an O-shaped closed ring to stop the water to obtain a better connection effect.
Advantages and disadvantages of this connection method: 1. It can meet the requirements of thinning of pipes and fittings and save the original material; 2. The connection strength is relatively low, and the strength at the connection is less than one-third of the strength of the main body of the pipe wall; 3 2. The pipeline cannot be disassembled; 4. The rough barbed and unsmoothed burrs of the pipeline port will damage the rubber ring and cause water leakage in the future.
The connection principle of the ring pressure type connection method: use the contraction external force in the diameter direction to clamp the pipe on the pipe, and use a wide-band rubber closed ring to stop the water to obtain a better connection effect. The advantages and disadvantages of this connection method are: 1. It can meet the requirements of thin walling of pipes and fittings and save the original material; 2.Because there is one more pressure pit than the compression type, the strength of the connection is superior to the connection type of the compression type; 3.The pipeline cannot be disassembled; 4. Because the crater is in the shape of a ring, the pipe is easy to rotate, which results in an unsatisfactory sealing effect; 5. Rough barbs and unclean flashing at the pipe port will damage the rubber ring and cause water leakage in the future.
The connection principle of the connection type of the card convex type is the same as the connection method of the ring pressure type.
The advantages and disadvantages of this connection method are: 1. the pipeline can be disassembled; 2. the pipeline has more processing processes for rolling convex rings on the pipe end; 3. the cost of the cast pipeline is relatively large; 4. the strength of the interface and the type of compression Compared, it is more superior.
Although the three connection methods of stainless steel pipes are similar in principle, each has its own advantages and disadvantages. Pay special attention when using it.
Our company specializes in manufacturing transition joints , hose joints, hose joints , tubing joints, engineering hydraulic joints , coal mine K-type joints , stainless steel joints
The crimping hose joints produced by our company are all made of high-quality 45 # steel, the sleeves are all high-quality 10 # steel, the finish is above Ra3.2, the dimensions are accurate to the level of 0.02 mm, and the hose joint nuts are 45 # high quality carbon steel and Q235 steel

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