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SAE O-ring Face Seal end
Metric O-ring port, SAE O-ring port, JIS BSPP O-ring port, BSPP flat face port, Metric flat face port, Four bolt split flange, NPTF taper thread, BSPT taper thread
Straight, Elbow, 45 Degree Elbow, Tee, Run Tee, Branch Tee, Cross, Banjo, Plug and Cap, Nut and Sleeve
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In critical hydraulic applications where even a minor leak is unacceptable, Stainless Steel ORFS (O-Ring Face Seal) Fittings deliver unmatched sealing integrity. Unlike traditional flare fittings, the ORFS design utilizes a soft seal combined with a rigid mechanical connection to achieve a true zero-leak hydraulic connection, even under extreme pressure pulsation and vibration. Engineered from premium AISI 304 or 316 stainless steel and manufactured to meet SAE J1453 and ISO 8434-3 standards, our stainless steel SAE J1453 fittings provide superior corrosion resistance for harsh environments, making them the definitive choice for the most demanding industrial and mobile applications.
The exceptional reliability of stainless steel ORFS hydraulic fittings stems from their unique two-part sealing mechanism. The connection features a flat-faced fitting with an O-ring groove and a companion flange with a smooth sealing surface. When assembled, the O-ring is compressed within the groove, creating a highly reliable static seal. This design effectively prevents hydraulic fluid leaks caused by vibration, thermal cycling, and system pressure spikes, outperforming traditional metal-to-metal seals.
Key Engineering & Performance Benefits:
Guaranteed Zero-Leak Performance: The elastomeric O-ring provides a superior seal that remains leak-free under the toughest conditions, a critical advantage when choosing ORFS vs JIC fittings for high-vibration equipment.
Exceptional Durability in Corrosive Environments: Made from AISI 304 or 316 stainless steel, these fittings are ideal for use in chemical processing, marine (saltwater), and offshore applications where corrosion resistance is paramount.
Full Standard Compliance & Safety: Conforms to ISO 8434-3 and SAE J1453 dimensional and performance standards, ensuring safety, reliability, and global interchangeability for high-pressure hydraulic systems.
Reusable & Maintenance-Friendly: The O-ring can be easily replaced during maintenance without compromising the fitting body, reducing long-term system costs.
The leak-proof guarantee and corrosion resistance of stainless steel ORFS fittings make them indispensable in industries where environmental compliance, safety, and uptime are critical. They are the preferred solution for hydraulic fittings for construction equipment, agricultural machinery, and mining vehicles that face constant shock and vibration. Furthermore, their cleanability and material integrity make them suitable for stainless steel fittings for the food and pharmaceutical industry, where hygiene and fluid containment are non-negotiable.
Primary Applications Include:
Mobile Heavy Equipment: Excavators, loaders, and forestry machinery requiring reliable seals under high vibration.
Chemical & Industrial Processing: Handling aggressive solvents, acids, and process fluids in pump and valve connections.
Marine & Offshore: Hydraulic systems on ships and platforms exposed to saltwater corrosion.
Energy & Transportation: Fuel injection lines, hydraulic systems in renewable energy equipment, and transportation.
Choosing Stainless Steel ORFS Hydraulic Fittings means investing in peak system performance, safety, and environmental protection. By combining the corrosion resistance of stainless steel with the zero-leak reliability of the ORFS seal, you eliminate a major source of system failure and maintenance cost.
Ready to upgrade your hydraulic system to zero-leak reliability? Contact our engineering team today to request a quote, download detailed 3D CAD models, and receive expert application support for your specific project needs.
Below is the technical data for our standard Stainless Steel ORFS Straight Fittings. All fittings are machined from AISI 316 Stainless Steel and comply with SAE J1453 and ISO 8434-3 for guaranteed performance and interchangeability.
| Nominal Size | ORFS Thread (SAE J1926) | Tube/Hose I.D. (Approx.) | Max. Working Pressure | Seal O-Ring (Standard) | Compliant Standards |
|---|---|---|---|---|---|
| 1/4" | 7/16"-20 UNF | 6.4 mm (1/4") | 6000 PSI | AS568A-009 | SAE J1453, ISO 8434-3 |
| 3/8" | 9/16"-18 UNF | 9.5 mm (3/8") | 6000 PSI | AS568A-012 | SAE J1453, ISO 8434-3 |
| 1/2" | 3/4"-16 UNF | 12.7 mm (1/2") | 6000 PSI | AS568A-015 | SAE J1453, ISO 8434-3 |
| 3/4" | 1-1/16"-12 UNF | 19.0 mm (3/4") | 6000 PSI | AS568A-018 | SAE J1453, ISO 8434-3 |
| 1" | 1-5/16"-12 UNF | 25.4 mm (1") | 5000 PSI | AS568A-021 | SAE J1453, ISO 8434-3 |
| 1-1/4" | 1-5/8"-12 UNF | 31.8 mm (1-1/4") | 4000 PSI | AS568A-024 | SAE J1453, ISO 8434-3 |
| 1-1/2" | 1-7/8"-12 UNF | 38.1 mm (1-1/2") | 3500 PSI | AS568A-027 | SAE J1453, ISO 8434-3 |
| 2" | 2-1/2"-12 UNF | 50.8 mm (2") | 3000 PSI | AS568A-031 | SAE J1453, ISO 8434-3 |
Key Selection Notes:
Zero-Leak Seal: The O-ring face seal is the key to leak-free performance. Always use the specified O-ring (e.g., AS568A-012 for 3/8") and ensure the sealing surfaces are clean and undamaged.
Pressure Ratings: Ratings are for standard hydraulic fluid. Consult our engineering team for applications with pulsating pressure or alternative media.
Material Advantage: AISI 316 stainless steel provides superior resistance to pitting and corrosion in chloride environments, making these fittings ideal for marine and offshore applications.
Thread Compatibility: ORFS threads follow the SAE J1926 standard. The straight threads require a separate O-ring to seal, unlike tapered thread fittings.
The combination of a leak-proof seal and stainless steel construction makes ORFS fittings essential for industries where safety and reliability are paramount. They are the preferred hydraulic fittings for construction and mining equipment subjected to constant vibration. Their cleanability and material safety also make them suitable for stainless steel fittings for food and beverage processing.
In critical hydraulic applications where even a minor leak is unacceptable, Stainless Steel ORFS (O-Ring Face Seal) Fittings deliver unmatched sealing integrity. Unlike traditional flare fittings, the ORFS design utilizes a soft seal combined with a rigid mechanical connection to achieve a true zero-leak hydraulic connection, even under extreme pressure pulsation and vibration. Engineered from premium AISI 304 or 316 stainless steel and manufactured to meet SAE J1453 and ISO 8434-3 standards, our stainless steel SAE J1453 fittings provide superior corrosion resistance for harsh environments, making them the definitive choice for the most demanding industrial and mobile applications.
The exceptional reliability of stainless steel ORFS hydraulic fittings stems from their unique two-part sealing mechanism. The connection features a flat-faced fitting with an O-ring groove and a companion flange with a smooth sealing surface. When assembled, the O-ring is compressed within the groove, creating a highly reliable static seal. This design effectively prevents hydraulic fluid leaks caused by vibration, thermal cycling, and system pressure spikes, outperforming traditional metal-to-metal seals.
Key Engineering & Performance Benefits:
Guaranteed Zero-Leak Performance: The elastomeric O-ring provides a superior seal that remains leak-free under the toughest conditions, a critical advantage when choosing ORFS vs JIC fittings for high-vibration equipment.
Exceptional Durability in Corrosive Environments: Made from AISI 304 or 316 stainless steel, these fittings are ideal for use in chemical processing, marine (saltwater), and offshore applications where corrosion resistance is paramount.
Full Standard Compliance & Safety: Conforms to ISO 8434-3 and SAE J1453 dimensional and performance standards, ensuring safety, reliability, and global interchangeability for high-pressure hydraulic systems.
Reusable & Maintenance-Friendly: The O-ring can be easily replaced during maintenance without compromising the fitting body, reducing long-term system costs.
The leak-proof guarantee and corrosion resistance of stainless steel ORFS fittings make them indispensable in industries where environmental compliance, safety, and uptime are critical. They are the preferred solution for hydraulic fittings for construction equipment, agricultural machinery, and mining vehicles that face constant shock and vibration. Furthermore, their cleanability and material integrity make them suitable for stainless steel fittings for the food and pharmaceutical industry, where hygiene and fluid containment are non-negotiable.
Primary Applications Include:
Mobile Heavy Equipment: Excavators, loaders, and forestry machinery requiring reliable seals under high vibration.
Chemical & Industrial Processing: Handling aggressive solvents, acids, and process fluids in pump and valve connections.
Marine & Offshore: Hydraulic systems on ships and platforms exposed to saltwater corrosion.
Energy & Transportation: Fuel injection lines, hydraulic systems in renewable energy equipment, and transportation.
Choosing Stainless Steel ORFS Hydraulic Fittings means investing in peak system performance, safety, and environmental protection. By combining the corrosion resistance of stainless steel with the zero-leak reliability of the ORFS seal, you eliminate a major source of system failure and maintenance cost.
Ready to upgrade your hydraulic system to zero-leak reliability? Contact our engineering team today to request a quote, download detailed 3D CAD models, and receive expert application support for your specific project needs.
Below is the technical data for our standard Stainless Steel ORFS Straight Fittings. All fittings are machined from AISI 316 Stainless Steel and comply with SAE J1453 and ISO 8434-3 for guaranteed performance and interchangeability.
| Nominal Size | ORFS Thread (SAE J1926) | Tube/Hose I.D. (Approx.) | Max. Working Pressure | Seal O-Ring (Standard) | Compliant Standards |
|---|---|---|---|---|---|
| 1/4" | 7/16"-20 UNF | 6.4 mm (1/4") | 6000 PSI | AS568A-009 | SAE J1453, ISO 8434-3 |
| 3/8" | 9/16"-18 UNF | 9.5 mm (3/8") | 6000 PSI | AS568A-012 | SAE J1453, ISO 8434-3 |
| 1/2" | 3/4"-16 UNF | 12.7 mm (1/2") | 6000 PSI | AS568A-015 | SAE J1453, ISO 8434-3 |
| 3/4" | 1-1/16"-12 UNF | 19.0 mm (3/4") | 6000 PSI | AS568A-018 | SAE J1453, ISO 8434-3 |
| 1" | 1-5/16"-12 UNF | 25.4 mm (1") | 5000 PSI | AS568A-021 | SAE J1453, ISO 8434-3 |
| 1-1/4" | 1-5/8"-12 UNF | 31.8 mm (1-1/4") | 4000 PSI | AS568A-024 | SAE J1453, ISO 8434-3 |
| 1-1/2" | 1-7/8"-12 UNF | 38.1 mm (1-1/2") | 3500 PSI | AS568A-027 | SAE J1453, ISO 8434-3 |
| 2" | 2-1/2"-12 UNF | 50.8 mm (2") | 3000 PSI | AS568A-031 | SAE J1453, ISO 8434-3 |
Key Selection Notes:
Zero-Leak Seal: The O-ring face seal is the key to leak-free performance. Always use the specified O-ring (e.g., AS568A-012 for 3/8") and ensure the sealing surfaces are clean and undamaged.
Pressure Ratings: Ratings are for standard hydraulic fluid. Consult our engineering team for applications with pulsating pressure or alternative media.
Material Advantage: AISI 316 stainless steel provides superior resistance to pitting and corrosion in chloride environments, making these fittings ideal for marine and offshore applications.
Thread Compatibility: ORFS threads follow the SAE J1926 standard. The straight threads require a separate O-ring to seal, unlike tapered thread fittings.
The combination of a leak-proof seal and stainless steel construction makes ORFS fittings essential for industries where safety and reliability are paramount. They are the preferred hydraulic fittings for construction and mining equipment subjected to constant vibration. Their cleanability and material safety also make them suitable for stainless steel fittings for food and beverage processing.
