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  • 1. product introduction

    1.1 screw sticking stainless steel pipe system

    The thread connecting pressure grouted pipe (Patent No.: 201320821792.X) as a utility model patent technology, provides a threaded compression of stainless steel tube joint, combined with the characteristics of anaerobic adhesive, mechanical and adhesive type two connection combination way, no longer rely on the rubber ring seal, making up for the deficiency of the traditional card the pressure connection technology existing in the use of.

    Screw stick type connection only in pipe inside or outside of the connecting pipe is provided with anaerobic sealant coating, the thread groove extrusion forming several seal gap, eventually forming a plurality of sealing line, safety, high reliability, aging resistance, corrosion resistance, long service life, with the ideal current stainless steel pipe.

    The threaded compression type stainless steel pipeline is suitable for urban low and medium pressure gas transportation, building water supply, industrial bulk gas transportation, industrial cooling water circulation system, urban water business, water mist fire protection, solar energy, electronics, food and medicine, etc.


    A schematic diagram of a threaded bonding structure


    产品介绍.jpg


    1.2 characteristics and advantages

    1.2.1 is more secure and never leaks

    Never leaked, due to excellent sealing performance. The threaded compression bonded stainless steel pipe forms a threaded compression section due to extrusion phenomenon when pressing, and makes anaerobic adhesive solidified under anoxic environment, forming four sealing barriers. It can play a role of sealing and plugging.

    1.2.2 is more secure with superior anti destructive ability

    The test shows that the screw - bonded stainless steel pipe has more excellent physical properties.

    The tensile strength is 23.35KN, which is 6.7 times the national standard and 7.3 times the compression connection. The burst strength is 31.OMPa, which is more than 5 times that of the card type connection (national standard 6.OMPa).

    Compression flat test: 7.5KN

    Impact test: the 0.3MPa pressure is injected into the module and the 15J impact is used. The pipe fittings are not damaged and leak after the experiment.

    Lightning test: the contact resistance of the pipe fittings and the pipe is 0.0024 omega (national standard<0.03 omega)

    1.2.3 is more simple, environmental protection, installation speed

    The installation process of threaded compression pipe is simple, and the 15 second card pressure is formed at one time. The installation speed is faster than that of galvanized pipe and aluminum plastic composite pipe, and it can double the installation efficiency.

    There is no need for power supply, no cutting fluid, flux, paint and other pollutants in the field construction of the threaded pipe, so it is clean and environmentally friendly.

    1.2.4 is more economical, one installation, and permanent use of real "zero" maintenance

    Screw stick type stainless steel pipe without the use of rubber seals, the complete elimination of the traditional press joint late due to the close circle of aging maintenance problem, save the cost of maintenance, truly zero maintenance, once and for all, the ultimate life of lower cost, more comprehensive economic benefits.

    1.2.5 is longer, and the service life is at least 70 years with the same life span.

    The screwed stainless steel pipes have the characteristics of corrosion resistance, aging resistance, high and low temperature resistance, long service life and so on. By the state professional inspection inspection agency 150C, 120*C, 100*C in high temperature and low temperature -50 C different temperature aging test, according to Arrhenius map projections, screw stick type stainless steel pipe service life of 70 years.

    L.2.6 is more hygienic, clean and non-toxic, and it meets the health requirements

    Stainless steel pipe has no heavy metal precipitation, no odor, no scaling, no harmful substances, keeps water quality pure, and human health is harmless. It is a clean material popularized by the state.

    The stainless steel pipe has eliminated the "blue and green water" phenomenon of copper pipe, and the "Stinky water" of the plastic pipe, "environmental hormone" "plasticizer" and so on.

    The screw thread pressure type pipeline is sealed by anaerobic adhesive, and is certified by the Canadian food inspection department (CFIA) and the China national quality inspection station. It is fully qualified for food, drinking water and medical and health safety requirements.

    1.3 anaerobes

    Anaerobic adhesive is also known as anaerobic adhesive, gas gel, thread glue and mechanical adhesive. It is in contact with oxygen or air

    Not solidified, and quickly polymerized into a crosslinking with excellent sealing and locking characteristics once the air is cut off.

    Solid polymer, and thermosetting plastics. Anaerobic adhesive is developed by using oxygen for the principle of free radical polymerization

    One component adhesive sealing, which can be used for bonding and can be used for sealing up. Thread lock for main purpose

    Solid structure, adhesion and infiltration of porous swords.

    Anaerobes for stainless steel pipes used in screwed stainless steel pipes through national professional testing

    It is proved that the aging performance of the test mechanism is far superior to the rubber material, and it is finished in the stainless steel pipe connection.

    It can play the role of sticking and blocking leakage and is allowed to be used in the drinking water pipe system. work

    After assembly, 4~8 hours are put into use at a temperature of -60~150C. At ambient temperature 23 "C,"

    23~0*C between 8~16 hours and low ambient temperature (below 0C) for 24~28 hours.


    产品介绍3.jpg

    Note: (1) long erect threaded stainless steel pipes must be bonded with a specified number of anaerobic adhesives.

    Unauthorized use of other brands or brands of viscose, the company is not liable.

    (2) no test pressure is strictly prohibited when anaerobic adhesive is not cured.


  • 2. Product specification and size

    2.1 Pipe number

    NONLEAK uses the stainless steel pipe material provided by Jinguang group.

    2.2 Pipe size

    2.3  Structure and size of pipe fittings

    2.4  Pipe structure type and size

    Equal path through

    Straight through path

    Straight wire

    Straight through wire

    90 degree equal diameter elbow (A type)

    90 degree equal diameter elbow (A type)

    Faucet elbow

    产品规格及尺寸4.1.jpg

    Male elbow

    产品规格及尺寸4.2.jpg

    Equal diameter three pass

    产品规格及尺寸4.3.jpg

    Small and medium size three links

    产品规格及尺寸5.jpg

  • 3. Installation and construction

    3.1 Installation steps

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    Pressure gauge

    安装施工2.jpg

    Matters needing attention:

    (1) not to exceed the maximum pressure of the tool when working, and the pressure valve shall not be transferred at will.

    (2) if the card stick connection is not in place, should be returned to the factory repair tool.

    (3) when connecting the long tube, the pipes at both ends must be on a horizontal line, and the card can be pressed.

    No radial rotation is prohibited at the post pressure pipe connection.

    (4) the installation staff must be trained by professional and technical skills, and can be laid off after being qualified.

    3.2 stainless steel pipe connection with other pipes

    (1) the pipe system with the nominal size DN15~50 should be connected with the other pipes to use a special conversion connection.

    Connector, threaded connection or flange connection.

    (2) the pipe system with the nominal size DN65~100 should be connected with the flange when it is connected with other pipes.

    (3) it is necessary to pay attention to the tendency of electrochemical corrosion when connecting with other material pipes.


  • 4. test and acceptance

    4.1 acceptance items

    (1) after the installation of the indoor gas pipeline, the strength and tightness test must be carried out according to the requirements.

    (2) the conditions that the indoor gas pipeline should have before the test:

    A. test plan and safety measures approved by the technician of the construction party and the supervisor of the supervisor

    The installation of pipeline within the scope of 

    B. has been installed according to design documents and drawings. The quality of installation shall be checked by the self inspection and supervision (construction) unit of the construction unit and corresponding to the corresponding regulations.

    C. has been strengthened as required by the test.

    D. the gas pipeline to be tested should be partitioned from other systems, equipment and meters that do not participate in the test, and there are obvious signs and records. Before the intensity test, the safety relief device should be removed or partitioned.

    (3) the test medium should adopt air and strictly prohibit water to be used as the test medium.

    (4) the test pressure meter should be in the validity period of the check, its range should be I.5~2 times the maximum pressure measured. The precision of the spring pressure gauge should be 0.4, and the U type pressure gauge should not be more than 1MM

    (5) the test should be carried out by the construction unit, the gas management enterprise, the project supervision unit and the construction Unit participation.

    (6) the completion and acceptance of the project shall be checked and accepted by the relevant departments, gas management enterprises and related units according to the relevant regulations of the state according to the nature of the project.

    (7) the strength test and tightness test of the buried gas pipeline system should be carried out before being concealed.

    (8) the chloride ion content in the foaming agent used for the strength test and tightness test of stainless steel metal pipe should not be more than 25X10-6.


    4.2 strength test

    (1) the scope of the test shall be in conformity with the following provisions

    A. residents are pipes between valves and valves (including valves) imported from the tube valve to the meter

    B. industrial and commercial users for the introduction of pipe valve before the valve to the appliance (including valve) between the pipeline

     C. pipeline before the pipe valve should be connected to the buried pipe for testing.

    (2) the gas pipeline should be swept clean before the strength test, air and nitrogen should be used in the blowing medium, and the combustible gas should not be used.

    (3) the test pressure should be 1.5 times of the design pressure and should not be less than 0.1MPa

    (4) when designing the gas pipeline with pressure greater than or equal to 10KPa, the stability test pressure is not less than 30 minutes, and all the joints are coated with blowing agent. The gas is qualified, or the stable test pressure is 60 minutes. The pressure is not reduced to qualified. When designing a gas pipeline with a pressure less than 10KPa, the stability test pressure is not less than 30 minutes. When the strength test is carried out, all the joints can be smeared with foaming agent, and no pressure is released, and the pressure gauge device does not drop to qualified.

    (5) when the strength test pressure is 0.4MPa (industrial and commercial), it should stop for 15 minutes at the 1/2 of test pressure. After checking all joints of the pipeline without leakage, it can continue to step up to the test pressure and stabilize for 60 minutes. No pressure drop is qualified for the pressure gauge.

    (6) the foaming agent should be cleaned in time after the test.


    4.3 tightness test

    (1) tightness test range of residents, commercial and industrial users of pipeline project, for the introduction of all the pipeline between the pipe valve before the valve to the appliance, also deal with the pipeline between appliancesgasutensils before the valve to the appliance before ventilation by check.

    (2) the tightness test should be carried out after the temperature test.

    (3) the pressure of the medium pressure pipeline is the design pressure, and it should not be less than 0.1MPa. The stability time is not less than 2h, all connection points are checked with foaming agent, no leakage and pressure drop of pressure metering device is not qualified.

    (4) the pressure of the low pressure pipeline is the design pressure and should not be less than 5KPa. Steady pressure time: the resident user is not less than 15 minutes, commercial and industrial users are not less than 30 minutes. There is no leakage and no pressure drop to be qualified with the foaming agent. When there are stainless steel corrugated hose and stainless steel pipe in the test, under the test pressure, the stabilizing time should not be less than 1h. Besides checking the sealing points carefully, we should check the leakage of the outer cladding end.

    (5) when the tightness test of low pressure pipes is carried out, the U pressure gauge should be used for pressure measurement.

    (6) after the completion of the project, the construction unit should first examine the gas pipeline and the equipment and make the tightness test, and notify the relevant departments for acceptance after being qualified. The new project should be checked for all the equipment, and the expansion or reconstruction of the project can only be checked for the expansion or reconstruction parts.


  • 5. construction technical requirements


    5.1 Minimum space size for pipe fittings

    When the clamping connection is made, the inevitable small deformation is produced in the connection part of the pipe. There must be a certain distance between the joint and the joint. The reference value of the minimum distance between the pipe joints is shown in table one or two and three below.

    Table 1: minimum spacing table for straight pipe joint

    施工技术要求1.1.jpg

    Table 2: 45 ", 90. Joint joint safety dimension table

    施工技术要求1.2.jpg

    5.2 Pipe support

    (1) Type of scaffold

    施工技术要求1.3.jpg

    5.3 Compensation for gas-fired stainless steel pipe

    Taking into account the temperature limit at work environment, the ultimate deformation will cause thermal expansion, resulting in stress, resulting in damage to pipe supports, deformation of pipes or the damage of connecting appliances. Pipeline compensation should be paid attention to when designing and constructing.

    施工技术要求2.1.jpg

    (1) Gas level dry pipe and high rise building stainless steel pipe. When natural compensation can't meet the requirement, compensator should be set up, and the compensator should first adopt II or bellows type.

    (2) Free wall natural compensation, II type compensation, Z type compensation can be erected vertically and erected vertically.

    (3) For the stainless steel pipe including DN32 above DN32, other compensators can be used for compensation.

    施工技术要求2.2.jpg

    Pipe laying

    (1) When gas pipelines cross pipe trenches, building foundations, walls and floors, the following requirements should be met.

    ① The gas pipeline must be placed in the casing and should be coaxial with the casing.

    ② Gas pipes in the casing shall not have any type of joint joint; the wall, floor and buried part should be coated or coated with anticorrosion measures.

    ③ The gap between the casing and the gas pipeline should be sealed with flexible anti-corrosion, good performance of waterproof material is filled, the gap is filled between the casing and the application of waterproof material of buildings;

    (2) The diameter of the casing involved in the gas pipeline passing through the foundation, wall and floor of the building should not be less than the regulation of the lower table

    施工技术要求3.jpg

  • 6. Product transportation, storage and protection

    ① should be taken carefully in the process of handling, not to throw, roll and drag, to avoid the damage of the pipe (parts) and to affect the normal use of the product.

    ②  the stainless steel pipe should be packed in a dry and clean environment without corrosive gas after packing, avoiding disorderly stacking and mixing with other objects. Storage should be protected, stacking layers not more than 5 and can not open storage, not with other metals, dirt mixed pile. Improper storage and contact with other metals and corrosive mediums lead to chemical or electrochemical corrosion of stainless steel.

    ③ Pipe and fittings should be protected during installation. Plastic film protection should be covered during pipeline installation, so that stainless steel pipes should not be directly contacted with cement, mortar, underground soil or building detergent.

    ④  When the pipe and pipe are inadvertently stained with oil, wipe clean. Especially in pipe end and pipe fittings, it should be confirmed whether there is a foreign object attached to it, and if there are foreign objects, it will cause bad installation.


  • 7. Tools and accessories

    Clamping tools and accessories: manual pipe cutter, clamp head, module, automatic pressing tool (manual hydraulic clamp)

    工具及配件1.jpg

    7.1. Maintenance of tools

    ①. strictly abide by the safe use.

    ②.The valve of the tool and all the parts of the embolism should be kept clean, and there shall be no dust or oil.

    ③. when the rubber tube is removed, the mouth and thread parts of the joint should be quickly protected so as to avoid damage and sticky dirt to lead to oil leakage.

    ④. use light and light, no collision phenomenon, the handle is in place, so as not to damage the screw.

    ⑤. working fluid is more than YB-N32 hydraulic oil, and it is strictly forbidden to use alcohol, water, glycerin, brake fluid or ordinary engine oil as working fluid.

    ⑥. working fluid must be used for filtering and cleaning 120--160 mesh filter oil.

    ⑦. the no load operation is strictly prohibited, so as to avoid damage to the oil cylinder or accident.

    ⑧. the tools should be placed in the packing box, stored in a dry, suitable temperature environment, and coated with antirust oil on the surface of the jaw.

    ⑨. long term use of rubber hose is easy to produce aging, should be regularly checked and replaced regularly.

    ⑩. tools should be regular maintenance tools, host use more than 6 months should be sent to the factory inspection and maintenance of the jaw, use more than 20000 times should be sent to the factory calibration size.

    7.2Common tools and troubleshooting of tools

    工具及配件2.jpg

  • Technical advantages: ring pressure stainless steel pipe, thread compression bonding, anaerobic adhesive dense peak bond, thread compression stainless steel pipe
  • Adhering to the spirit of "never leak pipeline", we will create the most dynamic leading brand of the international stainless steel pipe industry with the most leading technology, the best quality product and the most competitive price.
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