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E-Piping

addressHyogo/Nishinomiya-shi/8-12 Wajomachi
phone0798-38-1788
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last updated:May 18, 2024
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LOKRING fitting LOKRING fitting
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No welding required! LOKRING fittings <Information available & video now public>

No welding required, suitable for permanent piping connections. Can be installed in a short time without skilled techniques, contributing to heatstroke prevention.

The "LOKRING fitting" is a piping solution that achieves a high-strength and high-seal connection without welding by attaching the fitting body to the piping and tightening it with a special tool. You can watch the installation of Lokring fittings in a YouTube video. Since Lokring fittings do not use open flames, there is no need for protective measures around the area, reducing the risk of fire and explosion. They can be installed in confined spaces adjacent to walls and ceilings, repair existing piping, and work even when fluids are flowing, allowing for quick and easy installation, which contributes to reduced work time and alleviates labor shortages. 【Features】 ■ Improved safety by connecting piping with high strength through crimping without using open flames. ■ Reduced construction time due to quick installation, contributing to cost savings. ■ Easy installation helps alleviate labor shortages. *For more details, please refer to the materials available for download in the <Download Catalog> section. Installation videos are also available. Please check the <Basic Information> section.

  • Pipe Fittings

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What is the best method for leak prevention from flange joints? *Mechanical joints as an alternative to welding.

In coastal areas with many chemical plants and power stations affected by salt damage, we have numerous achievements as an alternative to flange joints! Technical documents using salt spray testing are also available!

In chemical plants and power stations, many "flanged joints" are used outdoors. Flanged joints are essential for connections with valves and equipment. However, there are many flammable fluid pipes in the surrounding area, and hot work such as welding poses risks, necessitating fire protection measures. Additionally, rainwater can infiltrate the gasket area, leading to corrosion and potential fluid leaks, which can be time-consuming and labor-intensive to inspect. This issue is particularly exacerbated in petrochemical plants and power stations located along the coast, where salt damage further complicates the problem. The 'Lokring joint' provided by E-Piping features a sealing structure (inboard seal and outboard seal) that isolates the main seal from external environments and internal fluids, thereby reducing the possibility of leaks. (Refer to the PDF for more details) **Features of Lokring Joints** - Reduces the possibility of leaks! - Can be installed easily and quickly without using fire! - Contributes to improved safety, reduced labor, and lower overall installation costs! - Usable in areas with risks of ignition or explosion, and can be installed underwater. *For more details, please download the PDF or contact us directly.*

  • Pipe Fittings

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Notice of Technical Seminar on November 1, 2023 (Wednesday)

This is a seminar on the Lokring joint, a fire-free piping method that replaces welding! We will present case studies and test results on the day.

We will hold a technical seminar on November 1st, Wednesday, at the Daihakata Building Reference Conference Room to reintroduce the technology and usefulness of lock ring joints, as well as to promote the fire-free piping method as an alternative to welding, so that many customers can become familiar with lock ring joints. We will present the construction methods, usage examples, and certification and test results demonstrating the performance of lock ring joints, and we will invite experts from the petroleum and electric power industries to give special lectures. We look forward to your attendance. 【Overview】 ■ Co-hosts: U.S. Embassy Commercial Service & E-Piping ■ Sponsors: Japan Petroleum Institute ■ Date and Time: November 1, 2023 (Wednesday) 14:00 - 17:00 (Registration starts at 13:30) ■ Venue: Daihakata Building, 11th Floor, Room 1123 ■ Address: 2-20-1 Hakataekimae, Hakata-ku, Fukuoka City, 812-0011 Phone: 092-292-5754 ■ Participation Fee: Free (Pre-registration required, first-come-first-served, capacity of 80 people; up to 3 participants per company) ■ Registration Deadline: October 20, 2023 (Friday) *For more details, please refer to the PDF document or feel free to contact us.

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Advantages of LOKRING fittings

Streamlining the work schedule! Compared to welding, the work time has been reduced to one-tenth.

We would like to introduce the advantages of the "LOKRING fittings" that we handle. There is no need for maintenance or repairs, and since there is no heating work involved, the accident rate related to OSHA decreases. The quick and easy installation improves productivity. Additionally, the fittings that use mechanical tightening comply with the API 607 Fire Test, and they are products that do not require screws, ferrules, or the use of wrenches. 【Advantages (partial)】 ■ Permanent connection ■ No heating work required ■ Safe prevention of construction mistakes ■ No need for purging or cleaning ■ Compliant with ANSI/ASME B31.1, B31.3, B31.4, B31.5, B31.8, B31.9 *For more details, please refer to the PDF materials or feel free to contact us.

  • Pipe Fittings

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Situations and places suitable for LOKRING fittings.

Small-scale/large-scale projects, etc.! Suitable for situations that require work under any weather or conditions.

We would like to introduce the situations and locations where our "LOKRING fittings" are suitable. They are ideal for places with limited space, underwater, in situations involving flammable or explosive hazards, when there are losses/problems due to plant downtime, and in any weather or conditions that require work. Additionally, ASME-certified welders are freed from welding small diameter pipes of 3 inches or less and can concentrate on welding large diameter pipes or pressure vessels. 【Suitable situations/locations (partial)】 ■ Places with limited space ■ Underwater ■ In situations involving flammable or explosive hazards ■ When there are losses/problems due to plant downtime ■ When work is required in medical gas systems *For more details, please refer to the PDF materials or feel free to contact us.

  • Pipe Fittings

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Technology of elastic strain preload

A permanent seal is formed between metals! With elastic load applied, the durability of the connection is improved.

Introducing the technology of "Elastic Strain Preload (ESP)." During installation, the axial movement of the LOKRING driver on the joint body compresses the body against the pipe surface, initially elastically and then plastically compressing the pipe wall. As resistance to the compressive force on the pipe wall occurs, significant compressive loads develop at the contact area between the narrow sealing section inside the joint body and the pipe surface. 【Features】 - The pipe wall is initially compressed elastically and then plastically. - Significant compressive loads occur at the contact area between the narrow sealing section and the pipe surface. - Plastic deformation occurs on the pipe surface beneath multiple sealing sections. - A permanent seal of metal is formed between the pipe and the joint body along a 360° circumference. - The durability of the connection is enhanced. *For more details, please refer to the PDF document or feel free to contact us.

  • Pipe Fittings

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【Usage】Railway

Air brake systems, auxiliary support systems, etc.! Introducing their applications in railways.

We would like to introduce the applications of "LOKRING fittings" that we handle in the railway sector. They can be used for applications such as air brake systems, auxiliary support systems, and AAR Unconditional Approval (2003). Please feel free to contact us if you have any inquiries. 【Applications】 ■ Air brake systems ■ Auxiliary support systems ■ AAR Unconditional Approval (2003) *For more details, please refer to the PDF materials or feel free to contact us.

  • Pipe Fittings

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[Usage] Medical gas/vacuum

Introducing applications of medical gases/vacuum for cooling, utilities, and fire-fighting water!

We would like to introduce the applications of "LOKRING fittings" for medical gas/vacuum handled by our company. Suitable for NFPA 99 (Para. 5.1.10.7(4)) 2005 certification, vacuum piping, and lines using nitrogen/oxygen/nitrous oxide. Please feel free to contact us if you have any inquiries. 【Applications】 ■ NFPA 99 (Para. 5.1.10.7(4)) 2005 certification ■ Lines using nitrogen/oxygen/nitrous oxide ■ Vacuum piping ■ Cooling/utility/fire water *For more details, please refer to the PDF materials or feel free to contact us.

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【Application】Chemical process industry

Introducing applications in the chemical process industry, including air breathing, cleaning solvents, and waste solvents!

We would like to introduce the applications of "LOKRING fittings" in the chemical process industry that our company handles. Products suitable for applications such as distillates/aromatic compounds, air sealing/air cooling, steam/condensate, hydrocarbons/liquefied petroleum gas, polymers/catalysts, flare headers, and VOCs (volatile organic compounds). Please feel free to contact us if you have any inquiries. 【Applications (partial)】 ■ Distillates/aromatic compounds ■ Air breathing ■ Cleaning solvents/waste solvents ■ Air sealing/air cooling ■ Steam/condensate ■ Hydrocarbons/liquefied petroleum gas *For more details, please refer to the PDF document or feel free to contact us.

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【Usage】Automobile

Suitable for applications such as solvent/water handling plants, tank farm services, and more!

We would like to introduce the automotive applications of the "LOKRING fittings" that we handle. They are suitable for plants and services dealing with solvents/water, as well as tank farm services. Additionally, these products can also be used for utility services and process industry applications. Please feel free to contact us if you have any inquiries. 【Applications】 ■ Plants dealing with solvents/water ■ Tank farm services ■ Utility services ■ Process industry applications *For more details, please refer to the PDF materials or feel free to contact us.

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【Purpose】Power generation

Carbon dioxide/hydrogen/nitrogen gas, sealed cooling water, etc.! Introducing their applications in power generation.

We would like to introduce the applications of "LOKRING fittings" in power generation that our company handles. They can be used for applications such as boiler discharge (without code), water desalination, fuel oil/lubricating oil, and water supply systems. Additionally, they can also be used for instrumentation air/plant air/utility air. Please feel free to contact us if you have any requests. 【Applications (partial)】 ■ Steam: Boiler discharge (without code) ■ Carbon dioxide/hydrogen/nitrogen gas ■ Sealed cooling water ■ Condensate: Water desalination ■ Fuel oil/lubricating oil *For more details, please refer to the PDF materials or feel free to contact us.

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[Usage] Shipbuilding/Repair

Can be used for applications such as fire hazard services and lubricants/hydraulic oil!

We would like to introduce the applications of "LOKRING fittings" in shipbuilding/repair that our company handles. They are suitable for fire hazard services, lubricants/hydraulic oil, and utility services. Additionally, they are applicable for steam/condensate, instrumentation/control applications, and have obtained Lloyd's/ABS type certification as well as certification from the U.S. Navy (NAVSEA). 【Applications】 ■ Fire hazard services ■ Lubricants/hydraulic oil ■ Utility services ■ Steam/condensate ■ Instrumentation/control applications *For more details, please refer to the PDF materials or feel free to contact us.

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[Usage] Marine production / Oil refining

Utilities, water, steam, etc.! Introducing applications in marine production/oil refining.

We would like to introduce the applications of "LOKRING fittings" in marine production and petroleum refining that our company handles. They can be used in applications such as instrumentation air, condensate/discharge lines, evaporated hydrogen discharge/flaring headers, and systems using propane/nitrogen. Please feel free to contact us if you have any inquiries. 【Applications (partial)】 ■ Utility/Water/Steam ■ Instrumentation Air ■ Condensate/Discharge Lines ■ Evaporated Hydrogen Discharge/Flaring Headers ■ Systems using Propane/Nitrogen *For more details, please refer to the PDF materials or feel free to contact us.

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[Application] Metal Industry

Lubricating oil/hydraulic oil, air breathing, etc.! Introducing applications in the metal industry.

We would like to introduce the applications of "LOKRING fittings" in the metal industry that our company handles. They can be used in utility services, instrumentation air/control applications, steam/condensate, and coolant/cooling water. Additionally, they are suitable for lubricating oil/hydraulic oil and air breathing. Please feel free to contact us if you have any inquiries. 【Applications】 ■ Lubricating oil/hydraulic oil ■ Air breathing ■ Utility services ■ Instrumentation air/control applications ■ Steam/condensate ■ Coolant/cooling water *For more details, please refer to the PDF document or feel free to contact us.

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【Usage】Pulp/Paper

Available for use in hydraulic oil, lubricants, and more! Introducing applications in pulp and paper.

We would like to introduce the applications of "LOKRING fittings" in pulp and paper that our company handles. They can be used in various applications including water wheels/hot water wheels, steam/condensate, cleaning solvents/waste solvents, instrumentation air/control applications, and steam trap stations. Please feel free to contact us if you have any inquiries. 【Applications (partial)】 ■ Hydraulic oil/lubricating oil ■ Water: portable, hot water shower, filtration ■ Water wheels/hot water wheels ■ Steam/condensate ■ Cleaning solvents/waste solvents *For more details, please refer to the PDF document or feel free to contact us.

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Twice the productivity compared to pipe welding construction.

Productivity improvement and reduction of man-hours achieved! Approximately 2.5 times more work related to fittings can be done in one hour.

The "LOKRING joint" allows for the assembly/preparation/installation of 50 to 60 units on-site in a single shift. In terms of assembly at typical job sites, it boasts double the productivity compared to pipe welding. The increase in productivity for general tasks enables cost reduction. By using LOKRING, productivity improvements and a decrease in man-hours are achieved, allowing for approximately 2.5 times more joint-related work to be done in an hour. 【Features of LOKRING Joint】 ■ Allows for the assembly/preparation/installation of 50 to 60 units on-site in a single shift ■ Boasts double the productivity compared to pipe welding ■ Enables cost reduction ■ Achieves productivity improvements and a decrease in man-hours ■ Allows for approximately 2.5 times more joint-related work to be done in an hour *For more details, please refer to the PDF document or feel free to contact us.

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No expenses related to welding are required.

Obtaining permits related to fire hazards, installing scaffolding and ventilation systems, etc.! There are various examples available.

If welding operations are eliminated, many indirect costs related to safety, labor, equipment, consumables, inspections, repairs, and monitoring will be unnecessary or significantly reduced. There are many examples, such as the installation of "sniff" areas, gas-free zones, rain shelters, fire monitoring systems, and the installation of equipment, electrical cables, and purge lines. Additionally, ASME-certified welders will be freed from welding small-diameter pipes of 3 inches or less, allowing them to focus on welding larger pipes or pressure vessels. 【Examples (partial)】 ■ Obtaining permits related to fire hazards ■ Installation of scaffolding and ventilation systems ■ Installation of "sniff" areas, gas-free zones, and rain shelters ■ Blank flanges/nozzles ■ Installation of fire monitoring systems ■ Installation of fire boxes/waterproof sheets *For more details, please refer to the PDF materials or feel free to contact us.

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Carbon steel pipe fittings

Introducing products compatible with carbon steel seamless pipes conforming to ASTM A106/A53S/A333!

We would like to introduce the "carbon steel pipe fittings" that we handle. The certified pipes are made of carbon steel that complies with standards such as JIS STPG370/STS370/STPT370, as well as carbon steel seamless and ERW carbon steel. Additionally, for schedule 80 compatible pipes, the products comply with ANSI B31.3 (at ambient temperature). 【Certified Compatible Pipes】 ■ Carbon Steel (compliant with JIS STPG370/STS370/STPT370, etc.) ■ Carbon Steel Seamless (compliant with ASTM A106/A53S/A333) ■ ERW Carbon Steel (compliant with ASTM A53E/A587) *For more details, please refer to the PDF materials or feel free to contact us.

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Stainless steel pipe fittings

Compatible with stainless steel and carbon steel pipes! Let us introduce our pipe fittings.

We would like to introduce our "stainless steel pipe fittings." These fittings are compatible with stainless steel (compliant with JIS SUS 304/304L/SUS316/316L) and carbon steel pipes (compliant with ASTM A106/A53S). The nominal diameter of the pipes is 1/2 inch, with schedules of 10/40/80, a maximum operating pressure of 34.8 MPa, and a temperature range of -50 to 425°C. 【Certified Compatible Pipes】 ■ Stainless steel (compliant with JIS SUS 304/304L/SUS316/316L) ■ Stainless steel (compliant with ASTM A312 Type 304/304L/316/316L) ■ Carbon steel pipes (compliant with JIS STPG370/STS370/STPT370, etc.) ■ Carbon steel pipes (compliant with ASTM A106/A53S) *For more details, please refer to the PDF document or feel free to contact us.

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Copper-nickel pipe fittings

Copper-nickel 90/10 class 200, compatible with MIL-T-16420 1.72Mpa products!

We would like to introduce the "copper-nickel pipe fittings" that we handle. These fittings are compatible with pipes such as copper-nickel MIL-T-24107 1.37Mpa, 1.65mm, and copper-nickel 70/30 class 200 and class 700 per MIL-T-16420. Additionally, for the CN-3300 with an outer diameter size of 1/4 inch, the maximum operating pressure is 22.8Mpa. 【Certified Compatible Pipes】 ■ Copper-nickel 90/10 class 200 ■ per MIL-T-16420 1.72Mpa ■ Copper-nickel MIL-T-24107 1.37Mpa, 1.65mm ■ Copper-nickel 70/30 class 200 and class 700 per MIL-T-16420 *For more details, please refer to the PDF document or feel free to contact us.

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Stainless steel tube fitting

Products compatible with seamless steel tubes conforming to ASTM A269 or A213!

We would like to introduce our "stainless steel tube fittings." We offer fittings compatible with seamless steel (compliant with ASTM A269 or A213), including unions, elbow fittings, and union tees. Additionally, when the wall thickness is at its minimum/maximum, the compatible tubes comply with ANSI B31.3 (at ambient temperature). Please feel free to contact us if you have any requests. 【Certified Compatible Tubes】 ■ Seamless steel (compliant with ASTM A269 or A213) ■ Unions ■ Elbow fittings ■ Union tees *For more details, please refer to the PDF document or feel free to contact us.

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Brass medical gas LOKRING fittings

Introducing non-flammable brass LOKRING fittings for medical gas compatible with copper pipes!

We would like to introduce our "brass medical gas LOKRING fittings." The compatible tubes are copper pipes for building plumbing JIS H 3300 and copper pipes for medical gas (K/L/M). Additionally, the certified wall thickness K for the 3/8 inch nominal fitting has a thickness of 1.25mm and a pressure rating of 13.4Mpa. Please feel free to contact us if you have any inquiries. 【Compatible Tubes】 ■ Copper pipes for building plumbing JIS H 3300 and copper pipes for medical gas (K/L/M) *For more details, please refer to the PDF document or feel free to contact us.

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About piping construction of Lokring fittings in a fluid outflow state.

Have you ever experienced trouble with a valve leaking at the seat? We will solve that problem!

When repairing aging pipes, it is common to close the upstream valve. However, have you ever experienced a situation where the valve has a seat leak just when you need to do this? Especially in welding cases, if there is a fluid leak, construction cannot proceed. The 'Lokring fitting', which can be installed easily and quickly without using fire, solves that problem. I believe you will find it easier to understand by watching the video at the (related link). Since Lokring fittings have a proven track record in major domestic oil refineries, chemical plants, and power plants since 2012, you can adopt them with confidence. If you would like to know more specific details, please feel free to contact our representative. *For more information, please download the PDF or contact us.*

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Alternative to pipe welding! A fitting that can solve labor shortages, reduce man-hours, and cut costs.

Solve issues such as "technology inheritance," "difficulty in securing veteran engineers," and "fire risk"! Enables anyone to easily and quickly carry out construction, improving safety.

The "LOKRING fitting" is a joint that can be installed without the use of fire, eliminating any costs associated with welding. In general assembly on-site, the installation time can be significantly reduced compared to pipe welding, allowing for substantial cost savings in total expenses, including labor costs. For those inquiring, we will introduce it with videos as well. Please feel free to contact us first. 【Benefits of Introduction】 ■ No use of fire: No need for protective measures, eliminating the risk of fire or explosion ■ Installation time is about 1/10 of welding: Shortened construction period ■ Can also be used for repairs of existing corroded piping ■ Simple and quick installation: Minimizes equipment downtime ■ Permanent connection: No maintenance or repairs needed after installation ■ No equipment, facilities, or procedures required for welding ■ No need for piping purging or cleaning ■ U-shaped dedicated tool: Allows for piping installation even in tight spaces *For more details, please download the PDF or contact us.

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[Example] I want to reduce welding preparation time, shorten the construction period, and keep costs down.

Utilized in major oil refineries, chemical plants, and (thermal/nuclear) power plants! Construction time is less than 1/10, allowing for shortened construction periods and cost reductions.

Generally, pipe welding in a plant requires welding permit applications, draining of piping, flushing and drying, installation of leak detectors, securing and scheduling of welders, and other tasks that can be time-consuming and costly. Additionally, the installation and dismantling of scaffolding, installation of ventilation equipment, fireproofing, and installation of fire extinguishing equipment are necessary, which can make rapid repairs difficult. The "LOKRING fitting" does not use fire, requires no preparation or procedures before and after installation, and can be easily and quickly installed by anyone after just a few hours of training, allowing for significant reductions in construction time and overall installation costs. For inquiries, we can provide case photos and videos for your reference. Please feel free to contact us. 【Benefits of Implementation】 ■ No use of fire: No need for fireproofing, eliminating the risk of fire or explosion ■ Installation time is about 1/10 that of welding: Shortened construction period ■ Can also be used for repairs of existing corroded piping ■ Simple and quick installation: Minimizes equipment downtime ■ Permanent connection: No maintenance or repairs needed after installation ■ No equipment, facilities, or procedures required for welding ■ No need for purging or cleaning of piping ■ U-shaped dedicated tools: Allows for piping installation in narrow spaces

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[Example] I want to improve the effects of weather, the welder's skill level, and the welding space, among others.

Due to the ability to carry out construction in any weather conditions, we have received positive feedback that it prevents delays in construction and reduces the waiting time for workers.

The "LOKRING fitting" is a fitting that can be installed in any weather and under any circumstances, preventing construction delays and reducing workers' waiting time, which has received positive feedback. Since it is installed using a dedicated hydraulic tool without the use of open flames, it is not affected by rain or wind. There are even cases where it has been used underwater. When piping is adjacent to walls, ceilings, or floors, the dedicated tool for the "LOKRING fitting" is U-shaped, allowing easy access from any direction without moving the pipes, even in tight spaces. This is particularly effective when dealing with steam trace piping that is in contact with the main pipe. Installation can be performed even when fluid is flowing. For example, when repairing downstream piping, the upstream stop valve is closed, but sometimes debris on the valve seat can cause a seat leak, resulting in a small amount of fluid flow. The "LOKRING fitting" can be installed even if there is some leakage from the fitting or piping, as long as it can be secured to the piping. *For more details, please download the PDF or contact us.*

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[Case Study] For those struggling to secure personnel for welding and piping construction.

In recent times, with the shortage of manpower in welding and piping construction being a concern, it has become easier to secure personnel since special skills are not required, and we have received many positive responses.

The "LOKRING fitting" does not require welding technology for installation, and anyone can perform the installation after receiving a short training session, making it easier to secure workers. As a result, welders can be freed from welding small-diameter pipes and can focus on larger diameter pipes and critical welding tasks. Additionally, the work time can be reduced to one-tenth compared to welding, ultimately helping to address labor shortages. This is expected to be beneficial for companies facing difficulties in securing technicians due to the decrease in experienced engineers with extensive knowledge and experience in welding and piping installation. For inquiries, we can provide case photos and videos as well. Please feel free to contact us. 【Benefits of Introduction】 ■ No equipment, facilities, or procedures required for welding ■ Installation time is about 1/10 of welding: shortened construction period ■ Can also be used for repairing existing corroded pipes ■ Simple and quick installation: minimizes equipment downtime ■ Permanent connection: no maintenance or repairs needed after installation ■ No need for pipe purging or cleaning ■ U-shaped dedicated tool: allows piping installation in narrow spaces ■ No use of fire: no need for protective measures, eliminating the risk of fire or explosion

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[Example] I want to carry out construction that considers safety and reduces the risk of fire from welding.

Welding uses fire, so safety is a concern. We provide peace of mind and address such worries.

The "LOKRING fitting" is a fitting that reduces fire risk and enhances safety because it does not use open flames. Since there is no heating work involved, it leads to a decrease in the accident rate related to the Occupational Safety and Health Administration (OSHA). We have also received positive feedback regarding the fact that there are no costs associated with welding. For those who inquire, we will introduce it with videos as well. Please feel free to contact us first. 【Benefits of Introduction】 ■ No equipment, facilities, or procedures required for welding ■ Construction time is about 1/10 of welding: shortened construction period ■ Can also be used for repairing existing corroded pipes ■ Simple and quick installation: minimizes equipment downtime ■ Permanent connection: no maintenance or repairs needed after installation ■ No purging or cleaning of pipes required ■ U-shaped dedicated tool: allows pipe installation in narrow spaces ■ No open flames used: no need for protective measures, eliminating the risk of fire or explosion *For more details, please download the PDF or contact us.

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[Example] I want to improve the on-site environment for welding.

Anyone can do it easily! Since no equipment or facilities necessary for welding are required, construction time can be shortened!

The "LOKRING fitting" can be installed without the use of fire, eliminating any costs associated with welding. In general assembly on site, productivity is improved compared to pipe welding, allowing for significant cost reductions in total expenses, including labor costs. For those inquiring, we will provide an introduction with videos. Please feel free to contact us. 【Benefits of Introduction】 ■ No use of fire: No need for protective measures, eliminating the risk of fire and explosion ■ Installation time is about 1/10 of welding: Shortened construction period ■ Can also be used for repairs of existing corroded piping ■ Simple and quick installation: Minimizes equipment downtime ■ Permanent connection: No maintenance or repairs needed after installation ■ No equipment, facilities, or procedures required for welding ■ No need for pipe purging or cleaning ■ U-shaped dedicated tool: Allows for piping installation even in narrow spaces *For more details, please download the PDF or contact us.

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[Example] I want to improve time and costs by securing welding applications and skilled workers.

Elimination of the need for equipment, facilities, and procedures required for welding, achieving a reduction in construction time!

The "LOKRING joint" is a joint that can be installed without the use of fire, eliminating any costs associated with welding. In general assembly at construction sites, productivity is improved compared to pipe welding, allowing for significant cost reductions in total expenses, including labor costs. For those inquiring, we will provide an introduction including videos. Please feel free to contact us. 【Benefits of Introduction】 ■ No use of fire: No need for protective measures, eliminating the risk of fire or explosion ■ Installation time is about 1/10 of welding: Shortened construction period ■ Can also be used for repairs of existing corroded piping ■ Simple and quick installation: Minimizes equipment downtime ■ Permanent connection: No maintenance or repairs needed after installation ■ No equipment, facilities, or procedures required for welding ■ No need for pipe purging or cleaning ■ U-shaped dedicated tool: Allows for piping installation in narrow spaces *For more details, please download the PDF or contact us.

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[Case] I want to improve the decline in quality caused by difficulties in inheriting technology.

Anyone can easily and quickly perform reliable construction equivalent to welding, contributing to quality improvement and maintenance.

The "LOKRING fitting" is a joint that allows anyone to easily and quickly perform installations at a level equivalent to welding. Therefore, it can solve the problem of "the lack of successors in an era where the inheritance of technology is not progressing as hoped, leading to a decline in technical skills (quality)." Since it does not require heating work, it is also expected to reduce the accident rate related to OSHA. For those who inquire, we will introduce it with videos as well. Please feel free to contact us first. 【Benefits of Implementation】 ■ No equipment, facilities, or procedures required for welding ■ Installation time is about 1/10 of welding: shortened construction period ■ Can also be used for repairing existing corroded pipes ■ Simple and quick installation: minimizes equipment downtime ■ Permanent connection: no maintenance or repairs needed after installation ■ No need for pipe purging or cleaning ■ U-shaped dedicated tool: allows pipe installation even in narrow spaces ■ No use of open flames: no need for protective measures, eliminating the risk of fire or explosion *For more details, please download the PDF or contact us.

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LOKRING fitting

Features and advantages such as being usable for repairs of existing corroded piping! No flame required mechanical joints.

This document is an overview of the "LOKRING joint," which serves as an alternative to welding in accordance with ASME B31. It includes "overview" information such as carbon steel (up to 100A) and stainless steel (up to 80A), as well as "features and benefits" such as no need for fire protection. Images of the "burst test (ASME B31)" and "bending fatigue test (ASME B31)" are also included, so please take a moment to read through it. [Contents] ■ Overview ■ Features and Benefits *For more details, please refer to the PDF document or feel free to contact us.

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[Information] LOKRING Fitting Installation Training

Easy and quick installation with performance equivalent to welding! Introducing the installation steps from Step 1 to Step 5.

In this document, we introduce the "LOKRING Joint Installation Procedure." We explain the process from "Cutting and Preparing the Pipe" to "Visual Inspection After Installation" using images and diagrams. Additionally, we also include information on "Features of LOKRING Joints" and "Seal Structure of LOKRING Joints," so please take a moment to read through it. 【Contents (Partial)】 ■ Features of LOKRING Joints ■ Seal Structure of LOKRING Joints ■ Couplings that do not penetrate the pipe and those that do ■ Pressure and temperature of carbon steel LOKRING joints and the wall thickness (Sch) of applicable pipes ■ Pressure and temperature of stainless steel LOKRING joints and the wall thickness (Sch) of applicable pipes *For more details, please refer to the PDF document or feel free to contact us.

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Installation Guidelines for Carbon Steel LOKRING Fittings

Set the fitting at the INSTALL mark! Here are the installation instructions for the carbon steel LOKRING fitting.

We will introduce the installation procedure for the 'MAS-3000 series' that we handle. First, cut the pipe at a right angle and use 120-grit sandpaper to polish the sealing surface in a circular manner, cleaning the surface to remove any scratches. Next, use a Multi-Purpose Gauge (MPG) to ensure that the outer diameter of the pipe is the correct size and mark the pipe. If the surface condition of the pipe is poor, apply a thin layer of PST sealant (liquid TFE) as an aid for sealing. Then, select the necessary LOKRING tools for installation, inspect the tools to ensure they operate correctly, set the fitting at the location marked "INSTALL," and securely install it while operating the tool. Finally, visually confirm that the installation has been done correctly. *For more details, please refer to the PDF materials or feel free to contact us.

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Installation Guidelines for Stainless Steel LOKRING Fittings

We will introduce the construction guidelines for LOKRING pipe fittings made of 316L stainless steel.

We will introduce the installation procedure for the 'SS40 and SS-3300 series' that we handle. First, cut the pipe at a right angle and use 120-grit sandpaper to polish the sealing surface in a circular manner, cleaning the surface to remove any scratches. Next, use a Multi-Purpose Gauge (MPG) to confirm that the outer diameter of the pipe is the appropriate size and mark the pipe. Then, select the necessary LOKRING tools for installation, inspect the tools, and ensure they operate correctly. After that, set the fitting at the location marked "INSTALL" and securely install it while operating the tool. Finally, visually confirm that the installation has been done correctly. *For more details, please refer to the PDF document or feel free to contact us.

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Installation Guidelines for Brass Medical Gas LOKRING Fittings

Introducing the installation procedure for LOKRING tube fittings from steps 1 to 5 with illustrations!

This document is the installation manual for the brass "LOKRING fittings" of the BR series. It introduces the installation steps from 1 to 5 using diagrams, including instructions such as "Before cutting the tube, clean the outer surface of the tube and remove any scratches with a low-abrasion pad as needed." Please take a moment to read it. [Contents (partial)] ■ Installation Steps ■ Step 1 ■ Step 2 ■ Step 3 ■ Step 4 ■ Step 5 *For more details, please refer to the PDF document or feel free to contact us.

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[Test Report] Carbon Steel LOKRING Fitting

Three types of pipes are used for the evaluation! Burst tests and bending fatigue tests are conducted.

Lokring Corporation has been asked to evaluate the performance of the joint line of the MAS-3000 product installed on Japanese Industrial Standards (JIS) carbon steel pipes. Therefore, burst tests and bending fatigue tests were conducted on Lokring MAS-3000 carbon steel products installed on JIS G 3454 STPG 370, G 3455 STS 370, and G 3456 STPT 370 carbon steel pipes. For more details, please refer to the related catalog. [Contents (partial)] ■ Background ■ Table 1: Pipe sizes, joint sizes, wall thickness ■ Purpose of the tests ■ Test details ■ Table 2: Pipe sizes, LOKRING joint sizes, wall thickness *For more details, please refer to the PDF materials or feel free to contact us.

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[Test Report] Stainless Steel LOKRING Fitting

Introduction to the evaluation of installing SS40 on JIS G 3459 SUS304TP pipe!

A performance evaluation of the SS40 fitting line installed on JIS stainless steel pipes is being requested. Therefore, pressure tests and bending fatigue tests were conducted on Lokring SS40 stainless steel products installed on JIS G 3459 SUS304TP stainless steel pipes. This test plan is based on ASME B31 regarding the quality of a series of fitting sizes. For more details, please refer to the related catalog. [Contents (partial)] ■ Purpose of the test ■ Test details ■ Results of the pressure test ■ Bending fatigue test *For more information, please refer to the PDF materials or feel free to contact us.

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