Your Leading Yuyao Yide Fluid Power Co, Ltd. Supplier
- Yuyao Yide Fluid Power Co., Ltd. is a professional manufacturer of hydraulic fittings. With more than 10 years of manufacturing and management experience in the hydraulic pipe fittings industry, we have become a major supplier of hydraulic adapters in manufacturing industry of China and a high-quality OEM manufacturer of international hydraulic components brands.
- The factory implements ISO9001 management system, advanced equipment manufacturing high quality hydraulic pipe fittings. Hydraulic pipe poducts are mainly exported to Europe, the United States, Japan and South Korea, while providing European brands with efficient OEM manufacturing of hydraulic pipe fittings. Our hydraulic pipe fittings include DIN2353/ISO8434-1 hydraulic fittings, hose fittings and hydraulic valves.
- Available in various thread sizes, ISO6149, Metric, BSP, NPT, NUF, SAE flanges, etc.
- Hydraulic components are available in materials of carbon steel, stainless steel, and brass.
- Provides zinc-nickel alloy and free chromium-6 coating.
- We are committed to providing high quality hydraulic fittings and service for field of engineering and fluid power.
Why Choose Us
Competitive price
We have a professional purchasing team and costing team,trying to reduce costs and profits,and provide you with a good price.
24h online service
You can contact us to inquire about pre-sales, sales, and after-sales services, and we will give you a very satisfactory.We are at your service online 24 hours a day.
Quality control
For each process,we have strict inspection standards,and we always insist that quality is life.
One-stop Solution
With rich experience and one-to-one service,we can help you choose products and answer technical questions.
Steel O-Ring Face Seal Fittings ( ORFS )
O-ring face seal adapter fittings use a straight thread and have a machined groove in the face of the male fitting to accept an O ring (of either Buna N or Viton material). This O-ring is compressed against the flat face of the female fitting for a leak proof connection.
Capacity to withstand high pressure
These ORFS fittings have proved their mettle in handling high hydraulic pressure. These are being used in places where hydraulic pressure of up to 6000 PSI is to be handled securely. All hail to the elastomeric sealing that offers an unmatched sealing to the entire assembly unit.
Easy to assemble and disassemble
Any fitting is said to be a worthy one if it facilitates easy assembling and disassembling. The best thing about these O ring face seal fittings is that these facilitate easy installation. With hassle-proof disassembling and reassembling, the entire unit can easily be replaced when required. The silver brazing supports connection and hence, once disassembled, a coat of silver brazing would render the surface as it is supposed to be.
Multi usage in different fields
Irrespective of whether it is any chemical plant, off-road construction, and agricultural equipment, wellheads in gas and oil sector, wind turbines, or auxiliary system in liquid fuel control- O ring face seal fittings find their usage. Companies like Dawsontech have done extremely well to provide equipment that not only provides a leak-proof surface but also monitor’s flow rate in several pneumatic industries.
Operating parameters
ORFS fittings can adapt to situations quite easily. That is, the product can be used in a wide range of places where factors affecting are diverse. Like as it can withstand a pressure of up to 6000 PSI, it can withstand a temperature of up to 210⁰C. This is what makes the entire fitting suitable to be used at a gas delivery system.
Zero tolerance and easy maintenance
For the smooth functioning of any unit, it is necessary to ensure regular maintenance. Being easy to assemble and disassemble, these O ring face seal fittings ascertain easy maintenance. It also offers easy installation because of the zero-tolerance to fitting. The unit needs not to be flexed or cut during installation.
Types of ORFS Fitting
01
Straight ORFS fittings
Straight thread with male ORFS connection point to male NPT, G or metric thread
02
Elbow ORFS fitting
Elbow screw connection, one ORFS female connection and another angled ORFS male connection
03
Tee ORFS fitting
T-threaded connection with one ORFS female connection port and two ORFS male connection ports
04
Cross ORFS connector
Four cross-directional male ORFS connection ports for distributing or combining media
Application of ORFS Fitting
ORFS fittings are hydraulic fittings used in high-pressure operations. These fittings are used to connect hoses or pipes in hydraulic systems. They are most commonly used in mobile and industrial hydraulics to provide leak-proof connections with high resistance to vibration and pressure. Here are some applications of ORFS fittings:
Industrial hydraulic systems
ORFS fittings are used in hydraulic power units, machine tools, and automation equipment. These fittings provide high-pressure seals and leak-resistant connections, which are critical factors in industrial hydraulic machinery.
Mobile hydraulic systems
ORFS fittings are used in vehicles such as tractors, construction equipment, and material handling equipment. They are used to connect hydraulic hoses and pipes that run hydraulically operated components like cylinders, motors, and valves.
Fluid transfer applications
ORFS fittings are used for various fluid transfer applications like fuel transfer, air conditioning lines, and refrigeration systems. They provide leak-resistant connections to ensure safe and reliable operations.
Agricultural applications
ORFS fittings are extensively used in agricultural machinery to connect hydraulic hoses and pipes. These fittings provide reliable connections that can withstand harsh operating conditions.
How to Maintain ORFS Fitting
Inspect fittings regularly
It's essential to keep an eye on the fittings and check them for any damage or wear regularly. Conducting regular inspections can help detect any damages such as cracks, deformations, or scratches.
Keep them clean
Clean fittings will work more efficiently and help prevent any damage or wear. Ensure that the fittings are free from dirt, debris, and moisture.
Lubrication
Apply a small amount of lubricant to the fitting threads and O-ring to maintain an effective seal and keep the thread from seizing.
Tighten fittings to the recommended torque
Over-tightening can cause damage to the fittings, and under-tightening can result in leaks.
Avoid mismatching fittings
Ensure that the connectors are compatible with the hydraulic hoses and tubing.
Proper installation
Follow the manufacturer's instructions and ensure that all the steps are accurately followed to prevent damage to the fittings.
Store them properly
Keep the fittings in a cool, dry place to prevent rust and corrosion.
Replace worn-out fittings
If fittings become damaged or worn-out, replace them immediately to prevent malfunctions and possible system failure.
O-Ring Face Seal Fittings Assembly Instructions
Proper assembly of the fittings is critical in all situations, but often in the field, short cuts are taken that can be a detriment to system performance. It is important to take the following steps:
Inspect the fitting for possible contamination or damage that may have occurred in shipping or storage. Confirm the O-ring is properly installed into the groove in the fitting’s face.
Using the system’s hydraulic fluid or a light lubricant, lubricate the threads and the O-ring.
Have the face seal flange mated against the O-ring and finger tighten the flange nut.
Use the properly rated torque value to tighten the flange nut.
The above procedure is known as “wet torquing”, which uses the system’s hydraulic fluid to lubricate the O-ring and fitting threads before installation. It is important to note that the coefficient of friction can vary significantly between assemblies because of differences in plating, material (stainless steel versus carbon steel), and thickness, as well as the thread quality between different components. There is less torque required on the threads by lubricating before installation which produces a more consistent coefficient of friction, ultimately increasing clamping force on the sealing area. Over tightening the fitting will make the threads deform and yield which will cause them to lose adequate clamping force or load on the seating area. Severe conditions and overextending operation of the system can cause additional yielding, resulting in unwanted leak points. If the fitting is not wet torqued it will compromise the efficiency and service life of the system.
The Intricacies of the ORFS Design
The O-Ring Face Seal (ORFS) design represents a pinnacle of engineering precision, meticulously crafted to ensure leak-free and reliable connections in hydraulic systems. Let’s delve deeper into the technical aspects that make this design stand out.
Thread form: ORFS fittings utilize UN/UNF (Unified National) threads, which are standard straight threads. This form provides uniform stress distribution and ensures that the O-ring doesn’t get pinched or twisted during connection.
O-ring location: The O-ring in ORFS fittings is located in a groove at the face of the fitting. When tightened, this face with the O-ring mates against a flat surface on the corresponding part. This metal-to-metal contact with an O-ring seal creates a nearly impermeable barrier to leaks.
Nose seat: The ORFS design features a nose seat, which serves as the primary sealing mechanism before the O-ring engages. It aids in ensuring initial alignment and guiding the fitting components during the connection process.
Seal compression: Upon tightening the fitting, the O-ring undergoes controlled compression between the two flat surfaces. This action provides an optimal and consistent sealing force across the connection, preventing any potential fluid bypass.
Material selection: The materials used for ORFS fittings typically include carbon steel, stainless steel, and occasionally brass. These materials are chosen for their strength, durability, and resistance to corrosion. The O-rings themselves are commonly made of materials like NBR (Nitrile), FKM (Viton), and EPDM, each selected based on specific application needs.
Backup rings: In some high-pressure applications, ORFS fittings might be equipped with backup rings. These rings prevent the O-ring from extruding out of its groove under high pressures, thereby extending the life of the seal.
Elimination of spiral leak paths: The smooth, flat sealing surface eliminates any spiral leak paths which might be present in tapered thread fittings. This design feature greatly reduces the likelihood of leaks.
In sum, the ORFS design capitalizes on precision engineering to offer a fitting that is both robust and leak-resistant, particularly suited for high-pressure hydraulic applications.
Selection criteria
Cosider the following criteria before selecting the correct hydraulic fitting types for your application:
Size: The internal and external diameter of the fittings are two important sizes to consider. These diameters of the fitting should be compatible with the hose diameter. Over or under-sized fittings can cause leakage or the connection to fail.
Material: The material of the hydraulic fitting should be compatible with the hydraulic fluid and with the operating environment. The most commonly used fitting materials are brass, aluminum, steel, or stainless steel. NBR (Nitrile) O-rings are the most widely used sealing materials.
Temperature: The hydraulic fittings should be suitable for your temperature range.
Pressure: The hydraulic fittings must be suitable for your pressure range, including the pressure spikes. Operating beyond this range can cause damage to the fittings.
Application: The type of application also determines the fitting type to be used. Tee or cross fittings are used for mixing or distribution application.
Assembly: If the hydraulic system requires frequent connecting and disconnecting of the hose or tube, the hydraulic quick-connect fittings can be used. Similarly, hydraulic compression fittings can be used to remove the need for welding or soldering of the fitting. It uses a compression nut to tighten against the ferrule creating a very tight seal. It can be used in areas with high temperatures as welded joints can leak in such environments.
What Is The Difference Between ORFS and ORB Fittings
Both face sealing and boss sealing fitting types utilize an encapsulated O-ring in order to create a seal. the difference is that face seal fittings have the O-ring located in the grooved area at the end of the male thread, while boss seal fittings have the O-ring located at the base of the male thread. The corresponding female Face Seal fitting has a flat sealing surface that engages the O-ring in the male fitting and compresses it as the fittings are threaded together and creates a seal. Boss Seal female fittings on the other hand have a grooved “boss” before the first thread that acts to encapsulate the O-ring on the male thread thereby creating a seal.
How Does ORFS Fitting Work
ORFS (O-ring face seal) fittings work by using a seating mechanism where an O-ring is compressed between flat metal surfaces to create a seal. The fitting has a male end with a tapered thread and a female end with a straight thread. The male end is inserted into the female end, and the threads are tightened until the two metal surfaces meet. This causes the O-ring to compress, creating a tight seal that prevents leakage. ORFS fittings are commonly used in hydraulic systems, as they are highly reliable and efficient.
What Are the Common Problems That May Arise with ORFS Fittings and How Can They Be Resolved
The common problems that may arise with ORFS fittings include:
Leakage：This may occur due to insufficient torque applied during installation. To resolve this, the fitting should be tightened properly to the recommended torque value.
Damage to the sealing surface：This may occur due to improper handling or contamination of the sealing surface. To resolve this, inspect and clean the sealing surface before installation.
Improper alignment：This may occur during installation, causing the fitting to be misaligned with the mating component. To resolve this, ensure proper alignment during installation.
Over-tightening：This may occur due to excessive torque applied during installation, causing damage to the fitting. To resolve this, follow the recommended torque values during installation.
Misapplication：This may occur due to using the wrong size or type of fitting for the application. To resolve this, ensure that the correct fitting is selected for the application.
Corrosion ：This may occur due to exposure to corrosive fluids or environments. To resolve this, select the appropriate material for the fitting based on the application.
Certifications
Yuyao Yide Fluid Power Co., Ltd. is located in Yuyao City, Ningbo, China. It is a well managed fluid-connectors manufacturing enterprise.
FAQ
Yuyao Yide Fluid Power Co., Ltd. is well-known as one of the leading orfs fitting manufacturers and suppliers in China. Please rest assured to buy or wholesale customized orfs fitting made in China here from our factory. Contact us for more details.