1, card convex features:
The installation is simple and the connection is not deformed inside or outside. It belongs to live connection and is easy to maintain. Scope of application: cold water system, drinking water pipe system, water treatment equipment system. The surface mount is more applicable, mainly considering the replacement of the sealing ring, and the hot water system should be avoided as much as possible. The advantage of this type of connection is that the installation is simple, convenient, and easy to maintain. It is relatively simple and convenient to replace the sealing ring in the pipe when it is aged. It can be replaced by simply unscrewing the nut. The disadvantage is that the application is single, and the aging of the sealing ring in the hot water system is more prominent and the cost is higher. Concealed piping and hot water systems are generally not recommended.
2, press-type features:
The installation is simple, the external pipe at the joint and the internal rubber ring are pressed into a hexagon. Scope of application: cold water system, direct drinking water system, surface mounted pipeline is more applicable. The advantages are: simple and convenient connection, short working hours and moderate cost. The disadvantage is that the application is single and maintenance is troublesome. The aging of the sealing ring in the pipe needs to be replaced when it is aged. The connection is already stuck because the connection needs to be replaced after sawing the two ends of the pipe. The hot water system should also be avoided as much as possible, mainly because of the uncertainty of the service life of the seal ring in the hot water system. Therefore, it is generally not recommended to use concealed pipes and hot water systems.
3, socket welding characteristics:
The installation is slightly more troublesome than the above two, but it is a joint-less connection, more secure and reliable, there is no seal inside, is dead. The scope of application is wide, both surface and concealed installations are available. In cold water systems and hot water systems, they are all suitable for use. Once installed, they can be used once and for all. Basically no need to consider maintenance. This type of connection has been used on copper pipes for many years and the connection between the Ministry of Construction and stainless steel is now also recommended for this connectionless connection.
(1) The order of cost price and sales price from high to low is: Order 1> Order 2> Order 3.
(2) Sequences 1-2 are on-site assembly type (need to use special tools) to install, fast and simple, suitable for surface mounting. When the function of the rubber ring is lost, the nuts of the order 1 can be replaced and the replacement of the order 2 due to the dead connection should be sawn. Order 3 is suitable for buried burial and inlay walls, but of course it can also be installed.
(3) The installation of the card 1 projecting type is simple: The installation requires a special installation tool. The installation scope of the pipe DN15-50 (DN15-20) is installed on the outer wall of the pipe with a special tool ring. The sleeve, (DN25-50) caliber pipe is installed on the inner wall of the pipe with a tool to form a ring-shaped step.
(4) Sequential 2 press-type installation simple introduction: installation requires special installation tools, installation range DN15-100, the pipe inserted into the pipe with a special tool to press the pipe wall into a hexagonal type, the internal seal The circle also became hexagonal.
(5) Order 3 Welded (slotted argon arc welding type): Installation range DN15-100, insert the pipe into the pipe fitting during installation, use the argon arc welder to weld the original slope extension reserved on the melting pipe fitting, no need Other solders, belonging to body welding, are simple to construct. (butt-argon welding type) Installation range DN125-200, align the ports of the pipe and pipe fittings during installation, and weld them with argon arc welding machine, but stainless steel welding rod is required as solder. There is a certain degree of difficulty in construction.
(6) The buried pipe shall meet the requirements of the same life as the building as much as possible. Therefore, the pipe shall be connected with the joint without connection.
The service life of the stainless steel pipe can reach 70-100 years, referring to a pure stainless steel pipe that does not contain other rubber rings and other materials. At the same time, the buried pipe requires the joints to be reduced as much as possible (more than one leakage risk for one joint), and most of the high-grade construction uses metal pipes (stainless steel pipes, copper pipes) mostly welded.
The above information is issued by 51 steel pipe network, source URL:.
The installation is simple and the connection is not deformed inside or outside. It belongs to live connection and is easy to maintain. Scope of application: cold water system, drinking water pipe system, water treatment equipment system. The surface mount is more applicable, mainly considering the replacement of the sealing ring, and the hot water system should be avoided as much as possible. The advantage of this type of connection is that the installation is simple, convenient, and easy to maintain. It is relatively simple and convenient to replace the sealing ring in the pipe when it is aged. It can be replaced by simply unscrewing the nut. The disadvantage is that the application is single, and the aging of the sealing ring in the hot water system is more prominent and the cost is higher. Concealed piping and hot water systems are generally not recommended.
2, press-type features:
The installation is simple, the external pipe at the joint and the internal rubber ring are pressed into a hexagon. Scope of application: cold water system, direct drinking water system, surface mounted pipeline is more applicable. The advantages are: simple and convenient connection, short working hours and moderate cost. The disadvantage is that the application is single and maintenance is troublesome. The aging of the sealing ring in the pipe needs to be replaced when it is aged. The connection is already stuck because the connection needs to be replaced after sawing the two ends of the pipe. The hot water system should also be avoided as much as possible, mainly because of the uncertainty of the service life of the seal ring in the hot water system. Therefore, it is generally not recommended to use concealed pipes and hot water systems.
3, socket welding characteristics:
The installation is slightly more troublesome than the above two, but it is a joint-less connection, more secure and reliable, there is no seal inside, is dead. The scope of application is wide, both surface and concealed installations are available. In cold water systems and hot water systems, they are all suitable for use. Once installed, they can be used once and for all. Basically no need to consider maintenance. This type of connection has been used on copper pipes for many years and the connection between the Ministry of Construction and stainless steel is now also recommended for this connectionless connection.
(1) The order of cost price and sales price from high to low is: Order 1> Order 2> Order 3.
(2) Sequences 1-2 are on-site assembly type (need to use special tools) to install, fast and simple, suitable for surface mounting. When the function of the rubber ring is lost, the nuts of the order 1 can be replaced and the replacement of the order 2 due to the dead connection should be sawn. Order 3 is suitable for buried burial and inlay walls, but of course it can also be installed.
(3) The installation of the card 1 projecting type is simple: The installation requires a special installation tool. The installation scope of the pipe DN15-50 (DN15-20) is installed on the outer wall of the pipe with a special tool ring. The sleeve, (DN25-50) caliber pipe is installed on the inner wall of the pipe with a tool to form a ring-shaped step.
(4) Sequential 2 press-type installation simple introduction: installation requires special installation tools, installation range DN15-100, the pipe inserted into the pipe with a special tool to press the pipe wall into a hexagonal type, the internal seal The circle also became hexagonal.
(5) Order 3 Welded (slotted argon arc welding type): Installation range DN15-100, insert the pipe into the pipe fitting during installation, use the argon arc welder to weld the original slope extension reserved on the melting pipe fitting, no need Other solders, belonging to body welding, are simple to construct. (butt-argon welding type) Installation range DN125-200, align the ports of the pipe and pipe fittings during installation, and weld them with argon arc welding machine, but stainless steel welding rod is required as solder. There is a certain degree of difficulty in construction.
(6) The buried pipe shall meet the requirements of the same life as the building as much as possible. Therefore, the pipe shall be connected with the joint without connection.
The service life of the stainless steel pipe can reach 70-100 years, referring to a pure stainless steel pipe that does not contain other rubber rings and other materials. At the same time, the buried pipe requires the joints to be reduced as much as possible (more than one leakage risk for one joint), and most of the high-grade construction uses metal pipes (stainless steel pipes, copper pipes) mostly welded.
The above information is issued by 51 steel pipe network, source URL:.
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