Vulkan Lokring Tool And Fitting

5.00 out of 5
(33 customer reviews)


Supply Vulkan Lokring Tool And Fitting,exported by China manufacturer,widely on sale in US,Europe,India,Middle east and other zones.Vulkan lokring is specially designed for HVACR project work to connect copper pipe or aluminium pipe with non-welding or free-soldering method,can remove the risk of fire welding and save cost of employing professional welding workers.Used as must-have service tools in refrigerating project.For lokring tool and fitting price,please send enquiry message to us.


  • Vulkan Lokring provides a way for solderless connecting metal pipes in refrigeration project;
  • Equips with jaws of 1/4″, 3/8″, 1/2″, 5/8″, 3/4″,7/8″,1″ and 1-1/8″ to work on pipes with different diameter;
  • Place of Origin: China
  • Sell to worldwide, Ship by air plane or by sea boat;

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Smartclima is a professional manufacturer known for producing high-quality “Vulkan Lokring Tool And Fitting” products.

Our factory is dedicated to providing revolutionary solutions for cold-pressed-joining and repairing HVAC and refrigeration systems withour fire soldering.With our advanced manufacturing facilities and technology, we have perfected the production of Vulkan Lokring tools and fittings. These products use cold-connecting technology, offering a fast, efficient, and reliable alternative to traditional welding and brazing methods.

We offer a wide range lokring fittings with many sizes, catering to various applications and system requirements. Our team of highly skilled professionals is also available to provide technical support and guidance to ensure seamless integration of our products into your projects.We can supply following tools and fittings:

Model A “Vulkan Lokring Tool And Fitting”,working for Air Conditioner System installation and repairing

Assembly tool:

Model A is divided into Model A-1  and Model A-2,they always apply to tube which diameter form 6.35mm (1/4″) to 28.6mm (1-1/8″), the wall thickness of pipe ≤1.5mm.They are commonly used on the project of air conditioner installing or repairing.

Has 8 pairs of jaws with size 1/4″, 3/8″, 1/2″, 5/8″, 3/4″,7/8″,1″ and 1-1/8″ to connect different diameters pipe or tube.

In order to solve the corner problem that not easy to operate,Smartclima develpoed two models as following: one hand curved  (Model A-1) and two hands curved (Model A-2)  as following to solve the corner problem.

Vulkan Lokring Assembly Tool model A-1

Vulkan Lokring Assembly Tool model A-2.double handles can be surved.

Assembly jaws for lokring tool Model A-1 & Model A-2:

The tools above (Model A-1 and Model A-2) require jaws to work together. The jaws has the following sizes:1/4″(6.35mm), 3/8″(9.52mm), 1/2″(12.7mm), 5/8″(15.8mm),3/4″(19.05mm),7/8″(22.2mm),1″(25.4mm),1-1/8″(28.5mm) for you to choose.

If you don`t have special requirement,you can require the following options which can meet your most of demands:

Option 1 with 5 kits jaws: 1/4″, 3/8″, 1/2″, 5/8″,3/4″;
Option 2 with 6 kits jaws: 1/4″, 3/8″, 1/2″, 5/8″,3/4″ and one kit for freezer(fridge) use;
Option 3 with 8 kits jaws: 1/4″, 3/8″, 1/2″, 5/8″,3/4″,7/8″,1″,1-1/8″;

Notice: If you want model A can also work for assembling and repairing freezer,fridge and refrigerator,you can require for extra “Special Jaw For Freezer”.

Vulkan Lokring jaws

Model B “Vulkan Lokring Tool And Fitting”,working for Freezer,Fridge,and Refrigerator assembling and repairing.

Model B(FRK8) is specially developed for refrigerator&freezer repairing and assembling where you often meet the prolem of small operation space.

Model B is total long 27cm only,can work in narrow space;As compact size,it is easy to carry.

Suit for tube diameter ≤8mm or 5/16mm, and wall thickness ≤1mm ,can work for small diameter copper pipe,aluminum pipe or other material pipes.

Must-have tools to connect copper dry filter and copper capillary tube.No risk of burning or explosion.High efficiency for connection,all done in few seconds.

Vulkan Lokring Tool for Freezer,Fridge,and Refrigerator assembling and repairing

More details of Model B:

Vulkan Lokring Tool for repairing Freezer,Fridge,and Refrigerator also names FRK8 lokring assembly tool

freezer lorking tool suits for connecting small metal tubes in small space like fridge and refrigerator system.

Freezer lokring kit refrigerator repairing manual tool

Consumable material–Lokring fitting and Sealant

As you know,if want to crimp tubes together,besides lokring assembly tool,another important consumable material is lokring nut fittings (or we name it “lokring connector”) and sealing liquid.You can choose these materials from the following links:

Copper-steel Lokring Fittings For Metal Tube Connecting same as vulkan lokring fitting
Copper-steel Lokring Fittings
Aluminium Lorking Tube Connecter Fitting
Aluminium Lorking Fitting
Aluminum Lokring Fittings For Refrigerator And Freezer Repairing vulkan lorking fittings
Aluminum Lokring Fittings For Refrigerator And Freezer Special Use
Lorking Stopper End Cap To Seal Refrigeration Pipe
Lorking Stopper End Cap (For Sealing Refrigeration Pipe End)
Lokring Connector Sealant Sealing liquid
Lokring Sealant

Remarks 1:All ring connectors above can be used to connect the following tubes.

The tool kit introduced in the web can process the following tubes` connection:

The lorking tool kit introduced in the web can process the following tubes` connection

Remarks 2: Lokring sealant isn`t glue.

Sealing is a liquid used to fill in scratches and fine bunkers on the surface of the pipe instead of sticking the two pipes that need to be connected together.The sealing liquid has been widely recognized in almost all refrigeration industries. It has a good sealing effect and will not react chemically with the refrigerant. The molecular structure is stable, it will not dry and brittle into a powder, and it will always maintain a soft and symmetrical film shape. It adapts to a wide temperature range and meets the requirements of most refrigeration products for ambient temperature. Store at an ambient temperature of 5-25℃, in a ventilated place, do not expose to the sun, and open the bottle often to check.

The curing time of the sealing liquid varies with the metal material in contact and the ambient temperature on site. Specifically, as long as one end is a copper tube, the curing time is about 2-4 minutes.If both ends are aluminum tubes, the curing time is about 15 minutes at 20-25℃.If the ambient temperature is too low (below 10℃), the curing time is longer. If necessary, the crimped joint can be properly heated to accelerate the curing. The heating temperature should not exceed 48 degrees Celsius.

If the sealing liquid drops on the refrigerator liner, it needs to be cleaned with a rag or paper towel.

How to operate connect pipes by Vulkan Lokring Tool And Fitting

It`s very easy to connect pipes by lokring assembly tools.We take Model A-1 tool as example to show you how to use this tool.

How to connect refrigeration pipes by Vulkan Lokring assembly Tools And Fittings without fire brazing or soldering

  • Step 1, Choose the right size for lokring fitting according to the target pipes.;
  • Step 2, Trimming the surface of copper pipe,and make sure the surface of tube is flat.
  • Step 3, Insert the inner nest,connecting ring, connecting sleeve on the right place of copper pipes;
  • Step 4, Draw a mark line on the tube wall at the port of the connecting sleeve;
  • Step 5, Take the connecting sleeve as the reference line, and pull out the length of 1/3 – 1/2 from the pipe end;
  • Step 6, Dropping the sealing liquid on the copper pipe
  • Step 7, Push the connecting ring towards to the connecting sleeve;
  • Step 8, Hold the lockring tool in the middle of the connecting ring and the outer end of the connecting sleeve;
  • Step 9, Shake the handle and stop when the connecting ring moves to the shoulder position of the connecting.

How to purchase “Vulkan Lokring Tool And Fitting”

  • The Vulkan Lokring Tool And Fittings are available for retail and wholesale;
  • The place of origin is in China,when you buy one or two,please consider freight(by air or by sea) into the cost;
  • Accept bulk order with Container delivery;
  • Please contact us online (click here) Or send inquiry message to our email: or

Some HVAC project samples using for “Vulkan Lokring Tool And Fitting”

Lokring technology are widely used in the field of HVAC project,including installing,repairing and maintenance of air conditioner system,freezer&fridge,and other refrigeration and heating project.The following pictures show some sample projects which are adpoted with lokring technology:

lokring technology used in condensing units lokring fittings used in VRF system,for copper branch connecting vulkan lokring technology can connect VRF copper pipe system withour fire soldering or welding vulkan lokring connects freezer compressor copper pipes lokring can also connect aluminium pipes in fridge and other refrigeration system equipments. Use lokring fittings to connect drier filters withour fire welding

Why use “Vulkan Lokring”?

Because the high temperature will be generated during the torch welding ,and the high temperature is easy to burn the plastic parts and other electrical parts in air conditioner or freezer system, and especially,aluminum tube will be slowly oxidized after a period of time because of the high temperature from the welding torch, it results in recurrence of trachoma leaks. It not only wastes time to repair,but also is not easy to weld again.

How to solve the problem mentioned above?A good news is that there is a welding-free (non-welding) tool named lokring with which, the high temperature from torch fire welding could be avoid, and vacuum and fluorine can be added immediately after crimping completely, no need to wait.

With this professional tool kit, welding/soldering is not required when repair the refrigerator or replace the refrigerated evaporator or deal with problems such as internal leakage of the machine’s refrigerated back,also includes to repair the air conditioner pipe system,which way can avoid damages other parts because of the inappropriate using welding torch or the high temperature from torch welding. Just use this lokring/crimping pliers with lokring fittings to directly press the copper, aluminum or iron connectors, which is suitable for all brands of refrigerator or air conditioners repairs. The repair speed with this welding-free tools is at least 2 times faster than that with traditional torch welding,also is more safe because no producing high temperature. After all, it is most important to improve working efficiency and safety quality. Lokring tools adopts the technology of leak-free sealing by cold extrusion,it not only let working effiency improves much,but also having more excellent sealing quality than that by traditional torch soldering welding,is becoming the new technology in the field of HVAC project.

[Advantage List of Vulkan Lokring]:

  • Free welding,high reliability, lower leakage rate than the traditional fire solderinging and any other welding ways.
  • No impurity and pollutant produced. Due to cold processing, no carbide produced.
  • No need professional welder, simple training can be operated, simple construction.
  • [Functions & Application] Designed for connecting copper pipes, aluminium pipes, steel pipes by using the technology of cold extrusion,free of welding,a mush-have tool for repairing in HVAC field.

General Knowledge on “Vulkan Lokring”

Vulkan Lokring tools can do cold-connection between metal tubesVulkan lokring is specially designed for HVACR project work,to connect copper pipe or aliminium pipe,using as installation and Service Tools in refrigerating field. It save your trouble to take welding tools and save your cost of employ prfessional welding workers by using only one vulkan lokring tool + glue + connector. Compare it with conventional tube connection methods for yourself, and you will see that lokringing  has the potential to become a classic. Where DIY experts have their rawl plugs or flex-cut materials, you and your customers could be lokringing in all sorts of situations.

They are very effective and 99% leak proof,and can improve 300% quicker than welding without potential issues and leaks. You just need to insert into each pipe, glue the outside of the pipe and use the tool to tighten both sides together, this makes a seal and the “weld” is done by the glue and tool. It ensures we use less 90 degree joints in the system to ensure better flow through,and can stand for gas and high pressure without leak. Vulkan lokring complex ring is key unit of tubes connection in refrigeration system.Easy to use,high efficient,safe,reliable and has been widely used in refrigerators, airconditioning installation and maintenance, seafood machine of installation and maintenance, dryer repair, refrigerator installation, locomotive airconditioning repair, installation of flat panel solar energy, installation of heat pump. vulkan lokring complex ring can completely replace the traditional flame welding,improve the efficiency , simplify work process,reduce the equipment that need to carry,and improve the quality of connection in refrigeration system installation/repair. Particularly in complex tubes connection with commercial airconditioning,the suhring complex ring can achieve the perfect standard work,high efficiency,high quality,nice engineering.

In the supermarket,about the maintenance of commercial facilities, the traditional flame welding can not match the suhring complex ring,because the complex ring is convenience,fast,and no-fire connection,,and do the connection work anytime,not until the supermarket closed,not affect the business,just need a simple tool,some suhrings, a bottle sealing liquid,finish the tubes connection of commercial facilities within 10 minutes. Note: The maximum thickness of tube wall is 2mm The maximum working pressure PN = 50bar The maximum burst pressure testing Pp = 4PN = 200bar The temperature range is -50 ° C ~ +150 ° C (or 220 ° C) The suhring complex ring can be used in round tube with any material. Application aera: Airconditioning installation: save time, improve efficiency, reduce leakage rate of welding, to avoid electrochemical corrosion 1,Seafood machine production/installation: lower costs, reduce the leakage rate of welding, to avoid electrochemical corrosion 2,Automotive airconditioning: lower costs, reduce weight, reduce leakage rate of welding 3,Motor-car airconditioning: lower costs, reduce weight, reduce leakage rate of welding 4,Refrigerator (freezer) Maintenance: To improve service quality, simplify operations, to avoid electrochemical corrosion 5,Commercial Display Cases maintenance : no need to wait,any time can to do, improve efficiency, and create benefit 6,Multi-line commercial airconditioning installation, maintenance: save time, lower costs, reduce the leakage rate of welding Other: Be used specialized tubes connetor in HVAC, domestic water, drinking water with aluminium,plastic、PPR tubes. the method to connect refrigeration pipes by vulkan lokring tools and fittings


  • Refrigerator manufacturing
  • Compressor replacement
  • Repairs to the charging tube (with or without schrader valve)
  • A/C Installation
  • Water heating project
  • Automotive Service
  • Repairs to leaking tubes:
    • Tube connectors
    • Tube reducing connectors
    • Capillary tube T-reducer for insertion into the suction pipe
    • Tube T-connector
    • Tube elbow connector
    • Couplers and reducing connectors
    • Y-branches
    • Header
    • Euro flare-fittings
    • Long radius elbows
    • Elbows and elbow reducers
    • T-connectors and T-reducing connectors

the HVAC engineer is connecting air conditioner pipes by using vulkan lokring technology,use sealant liquid to fill small gaps on tube surface working on roof to connect copper pipes without fire soldering use vulkan lokring tools and fittings to connect cold-connecting technology,no leakage. technology of vulkan lokring is widely used in the HVAC project to connect copper pipes,no need fire to braze or solder manual tool for copper pipe connecting with good performance vulkan-lokring is used technology cold-connection,no leaking vulkan-lokring are widely used in air conditioner,freezer and other refrigeration system

Order  “Vulkan Lokring Tool And Fitting” today in Smartclima!

The Vulkan Lokring Tool and Fitting is designed to streamline the installation process,improve efficiency,reduce labor time and costs. With its unique cold forming technique, it eliminates the need for hot work permits, open flames, or brazing equipment. This not only enhances safety but also minimizes downtime and increases productivity on the job site.

The Vulkan Lokring Tool and Fitting manufactured by Smartclima can ensure a leak-proof and permanent connection, making it ideal for critical applications. With its ability to withstand high temperatures, pressure, and vibration, it guarantees flawless performance in even the most demanding environments. Say goodbye to costly repairs and leaks, and hello to a long-lasting and efficient HVAC system.

Choosing our Smartclima ensures you receive the highest level of service and support. With years of experience in the HVAC industry, we have built a reputation for excellence and reliability. Our team of experts is always available to provide technical assistance, answer any questions, and guide you in choosing the right product for your specific needs. We are dedicated to building long-term relationships with our clients and ensuring their success.

So,Order  “Vulkan Lokring Tool And Fitting” today in Smartclima!

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Reviewed by 33 customer(s)

  • Milanio De Castro Santos jr

    How much lokring for refrigeration tools

  • Allan Nunag

    How much the price for
    Model A and Model B
    Where I can buy it?






  • Allan

    Where i can buy this in the philippines?

  • Inderpreet

    Best tool for brazing

  • Chandan Debnath

    How can I buy this product

  • Chris

    I need this tool kit how much in UAE price

  • Joseph

    Kindly share me the price of the whole set with the fitting and the like

  • Ernest Baptist

    Am interested in the tool and accessories.. would like to purchase..

  • Thomas

    Hi price? Thx

  • John Babcock

    We are a small HVAC repairing service company in Italy here.We need your lokring tools and fitting to equip our service team.We need to repair air conditioner and freezer.Could you send us price?

  • Charle

    price please


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