Why Choose Our Stainless Steel Compression Fitting
- Owns Japanese Mazak CNC equipment, with thread tolerance of ISO 6H class.
- Repeatedly disassembling the test, their pressure level was 6000 PSI.
- Own CNC lathe machining precision of + / – 0.01 mm.
- The sealing contact surface roughness Ra is strictly controlled below 0.8μm.
- Perform component analysis of the raw materials using a PMI spectrometer.
- Control card sets of compressed highly consistent deviation ≤ 0.05 mm.
Your Reliable Stainless Steel Compression Fitting Supplier
Our stainless steel compression fitting uses 304 and 316L stainless steel materials while providing protection against corrosion and high-pressure conditions, and allowing for installation without welding. With a surface roughness of ≤0.8 µm at the sealing surface combined with the elimination of bacterial residue, it meets the basic hygiene standard. we delivers continuous product availability while ensuring product quality. We invite you to contact us for potential business partnerships.
Products By Connection Method
The two caps connect to each other through their tight grip on the pipe wall, which makes it suitable for high-pressure and vibration environments.
It has a basic design that enables fast installation, and it works properly in medium-pressure and low-pressure operations.
uses a 37° conical surface, which creates a pipe end seal that contacts the joint, thus providing exceptional high-pressure resistance.
It provides simple assembly and disassembly functions while maintaining reliable sealing performance in pipelines that need regular maintenance.
It can create a permanent seal between the two elements. The construction process achieves exceptional efficiency.
The most fundamental type of pipeline connection involves linking two pipes. This joint design permits straight pipeline extensions.
Products By Functional Form
It allows for pipeline turns at both 90-degree and 45-degree angles, which provides space-saving benefits for requiring pipeline direction alterations.
It enables fast disassembly and reassembly of pipelines, which makes it appropriate for use at pipeline nodes that need ongoing maintenance.
It functions as a connector between multiple interface standards and different pipe diameter sizes to enable smooth connections between various pipe fittings.
It is designed to pass through the panels, bulkheads, or equipment casing and thereby find use in the context where pipe laying through the panels.
Features of Stainless Steel Compression Fitting
The compression fitting allows you to perform multiple disassemblies and restorations without harming the pipe material.
The compression or crimp structure creates a mechanical self-locking seal that does not depend on adhesive or packing materials.
The Stainless steel compression fitting functions reliably between the temperatures of -20℃ and 200℃.It is
The inner wall contains no dead corners, which allows you to perform direct cleaning operations and maintain sanitary pipeline standards.
The stainless steel compression joints that we offer deliver pressure resistance that exceeds 60 MPa based on the specific structural requirements.
We offer you standard pipe fittings with stainless steel compression components, helping you shorten the project duration.
The fitting enables connections with multiple piping systems, which include stainless steel pipes, copper pipes and nylon pipes.
The all-metal structure maintains its original condition for more than 20 years because it shows no signs of aging under standard operational conditions.
No Welding Required
The installation process requires neither welding tools nor specialized welding personnel. The pipeline connection just needs your manual tightening to reach completion. The installation process needs more than 50% less time to finish. Your team can start work immediately on both new pipeline projects and existing site renovations, which will result in lower labor expenses and construction costs. Enable your pipeline system to operate smoothly and quickly, without delaying the production schedule.
Corrosion Resistance
The 304/316L stainless steel compression fitting provides protection against both corrosion and erosion for extended periods of time in any operating environment, which includes acidic and alkaline media, salt spray, and humid conditions. Compared to ordinary carbon steel joints, you don’t need to frequently replace them, and the maintenance cost is significantly reduced. The service life can exceed 20 years. During its usage period, it can maintain sanitary and mechanical performance, thus relieving you of the trouble of maintenance.
Sealing Reliable
The ferrule compression structure creates a mechanical self-locking seal that does not depend on adhesive substances or packing materials. So, guarantee stainless steel compression fitting sealing performance remains consistent throughout an extended period. The Stainless Steel Compression Fitting system protects all high-pressure gas and liquid pipelines from potential leakage issues. Even under high pressure of up to 60 MPa, it can still ensure the normal and stable operation of your pipeline system.
Applications of Stainless Steel Compression Fitting
The Petrochemical industry needs protection for its pipelines because they will experience extended exposure to corrosive materials. The 316L compression joints we provide protect your pipeline system from acids and alkalis under high-pressure.
Your production line needs to meet stringent hygienic standards for its food and beverage operations. Our sanitary-grade compression joints have smooth inner walls without dead corners, which meet food-grade standards.
The medical and pharmaceutical industry requires your pipelines to maintain complete clean. Our compression joints undergo ultrasonic cleaning while we install them without welding to guarantee that your conveyed medium stays pure and contamination-free.
Your ultrapure water and special gas pipelines need to maintain exceptional cleanliness standards. Our compression joints provide complete cleanroom compliance through their sealed design, which prevents both leaks and particle emissions.
Your ship’s pipelines face ongoing challenges from salt spray and high-humidity conditions present in marine environments. Our stainless steel compression joints provide outstanding protection against corrosion.
The gas path of your instrument needs to achieve maximum sealing performance. Our compression joint mechanical self-locking seal enables your instrument to deliver accurate signal transmission while preventing any gas path leakage.
The building pipeline construction process needs to be completed within a short time period. Our compression joints provide quick installation through their no-welding design, which reduces overall construction complexity.
Your hydrogen pipeline needs to achieve the highest level of safety through its sealing requirements. The high-pressure compression connectors we offer can handle pressures exceeding 60 MPa, which ensures dependable operation of your hydrogen system.
- Certificate of Compliance
Customer Reviews
We have strict requirements for surface finish and hygiene standards in pharmaceutical equipment. OMSS stainless steel fittings showed excellent workmanship, with smooth surfaces and precise machining. Their products helped us meet our equipment assembly requirements and maintain reliable production performance.
MichaelOMSS has become one of our trusted stainless steel component suppliers. We appreciate their fast communication, clear order updates, and careful packaging. Even for customized parts with different specifications, they maintain good consistency between samples and mass production.
SarahWe ordered stainless steel tank accessories and pipe fittings from OMSS for industrial fluid handling applications. The products arrived on time with proper protection, and the installation process was smooth. Their team was responsive whenever we needed technical information before and after delivery.
Thomas
The stainless steel compression joint shows perfect compatibility because it works with stainless steel pipes and copper pipes, nylon pipes and PA pipes, and all other types of plastic pipes. All you need to pay attention to is the selection of the adapter. The adapter type required for use depends on the type of pipe material hardness you have selected. The design of copper pipes and plastic pipes requires a built-in support sleeve to prevent pipe wall deformation during compression and to maintain proper sealing performance.
The stainless steel compression fitting allows for multiple disassembly and reassembly operations. The ferrule has already engaged the pipe after its first installation, so you must replace the old ferrule with a new one during reinstallation to achieve proper sealing results. However, the fitting structure will sustain permanent damage from continuous disassembly and reassembly throughout extended time periods. Therefore, the number of disassembly and assembly operations is also limited.
You should pay attention to the following points.
- The pipe opening must be cut with a smooth edge before installation, which needs to be done through ultrasonic cleaning or cleaning cloths that remove all metal chips and impurities inside the pipe.
- The adapter will develop deformations, which will cause pipe diameter blockages when you use excessive tightening during installation.
The single-ring type adapter relies solely on the single-point interlocking seal of the front ring to achieve sealing and is suitable for medium and low-pressure applications. The double-ring type, through the coordinated interlocking of the front and rear rings, has a larger sealing contact area and stronger resistance to vibration and pull-out force, and is suitable for harsh conditions such as high pressure and strong vibration. The double-ring type provides better sealing reliability compared to the single-ring type.
The 316L stainless steel compression joint contains at least 2% Mo and has strong resistance to acidic gases and general sulfide corrosion. The material is appropriate for use in environments with medium and low concentration acidic substances and sulfur compounds. The connection should use nickel-based alloy material if your pipe system has a high concentration of hydrogen sulfide (H₂S) or strong acid conditions to achieve safety.
- Electrolytic polishing (can reduce the surface Ra value to below 0.4 μm, which results in better corrosion resistance)
- Passivation treatment (removes surface free iron while it strengthens the oxide film)
- PVD coating
Of course, you can combine different processing methods, such as electrolytic polishing and passivation. This can double the corrosion resistance effect.
What Are Stainless Steel Compression Fittings
Are you still troubled by the time-consuming process of pipeline welding and the difficulty in troubleshooting leaks? The stainless steel compression joint can achieve a sealed connection through manual tightening. It functions without the need for welding or specialized equipment. And offers three essential characteristics, which include protection against corrosion and the ability to maintain high-pressure seals and to achieve hygienic cleanliness. Thanks to these advantages, it has become the favorite choice for many industrial pipeline companies when it comes to Compression Fittings.
What Is the Sealing Principle of the Compression Fitting, and Why Is It Reliable
When the nut is tightened by you:
- The rear ring functions as both a hinge and a driving mechanism, which moves the front ring forward.
- The front ring connects with the outer pipe wall to create a mechanical clamping effect while it establishes the primary metal-to-metal seal.
- The nut seals the rear ring, which creates an additional seal. The nut seals the rear ring, which creates an additional seal.
With this dual sealing effect, it can offer you more convenience:
- This fitting maintains its integrity through vibration and pressure changes while undergoing thermal cycles.
- The joint assembly can be performed don’t need you to replace the collar or disassemble the system to install a new collar.
- During assembly, you do not need to use thread sealant, polytetrafluoroethylene tape, or special lubricant (but anti-adhesive lubricant is recommended for stainless steel connections to stainless steel).
What Are the Common Quality Issues to Avoid When Purchasing Stainless Steel Compression Fitting
Improper Ring Hardness
The fitting fails to fit the pipe because its hardness level does not match the required hardness for the selected pipe material. When you choose The hardness of the sealing ring must be considered.
Ineligible Thread Dimensions
Slight deviations from the tolerance range of NPT and BSP thread dimensions can lead to improper connection and leakage. So you’d better obtain the thread gauge inspection report.
Counterfeit Fittings
Authentic joints will be marked with dimensions, material grade, pressure grade, and the manufacturer’s logo. You can eliminate potential safety hazards by purchasing from a legitimate manufacturer.
How to Correctly Install the Stainless Steel Compression Fittings
Step-1
The first step requires you to prepare the pipe material. The pipe opening requires filing to achieve smoothness because any roughness will result in sealing problems.
Step-2
The second step requires you to insert the parts. The truss and bushing need to be put into the pipe material through one by one insertion process. The bushing should be installed with its front conical end facing forward because backward installation is not allowed.
Step-3
This step requires you to insert the connector. The pipe material needs to be inserted into the socket body. The solution pipe end should be pushed to the bottom limit position to ensure the insertion stops.
Step-4
You need to do manual pre-tightening. positioning through this process. The body requires you to secure it with a wrench, after which you must rotate the bolt in a clockwise direction for 1.25 turns.
Step-5
Finally, you can introduce pressure through the medium after installation. At the compressed joint, if the leak detection fluid is normal, it indicates that your sealing process has been successful.
Stainless Steel vs Brass Compression Fittings
| Stainless steel compression fitting | Bronze compression fitting | |
| Material | 304 / 316L stainless steel | Copper-zinc alloy |
| Corrosion resistance | Strong | Not resistant to acidic and chloride ion environments |
| Pressure resistance rating | High | Medium |
| Hygiene cleanliness | High | Lower |
| Temperature tolerance range | -20℃ to 200℃ | -20℃ to 120℃ Lower |
| Hardness and strength | High, with strong resistance to pulling and vibration capabilities | Lower |
| Processing performance | Difficult to process | Easy to process |
| Price | Higher | Lower |
| Weight | Heavier | Lower |
