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SAE O-ring Face Seal end
SAE O-ring port, BSPP flat face port, Metric flat face port, NPTF taper thread, BSPT taper thread
Straight, Elbow, Tee
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Premium O-Ring Face Seal (ORFS) Fittings: Eliminating High-Pressure Leaks
Fitsch is a premier China ORFS stainless steel fittings manufacturer and factory, engineering high-precision fluid connectors strictly to ISO 8434-3 and SAE J1453 international standards. Recognized for its zero-leak performance, the O-Ring Face Seal (ORFS) design features a flat machined sealing face with an integrated elastomeric O-ring groove. When mated to a flat-faced female sleeve or swivel nut, it provides an unbeatable dual-barrier seal against extreme systemic pressures and high impulse shocks.
By utilizing high-grade 304, 316, and 316L stainless steel, our ORFS adapters provide exceptional corrosion resistance in harsh industrial, offshore marine, oil and gas, and mobile heavy equipment operations. The flat-face design also allows for "slip-in" installation, meaning you can replace components without springing or peeling back rigid tubing lines.
Comprehensive Geometric Shapes
Our CNC lines produce high-tolerance bodies to support diverse layout requirements:
Straight: Inline connectors to bridge fluid paths smoothly.
Elbow (90° and 45°): Forged heavy-duty bodies to smoothly route plumbing around tight constraints.
Tee: Three-way branch connections (including Union Tees, Run Tees, and Branch Tees) to split or blend process lines.
High-Demand Connection Type Interfaces
We engineer our ORFS ISO 8434-3 range to transition effortlessly across standard industrial ports and hose assemblies through these primary connection options:
1. Connection to SAE ORB (O-Ring Boss)
Bridges the flat-face ORFS system with heavy-duty straight-thread fluid ports. The male SAE ORB thread relies on an independent port O-ring, creating an ultra-reliable connection for hydraulic manifolds, cylinders, and control blocks.
2. Connection to Swivel ORFS
Equipped with a pre-assembled female ORFS swivel nut. This configuration couples directly to standard male ORFS adapter ends or tube sleeves, allowing technicians to lock down connections tightly without twisting or stress-cycling the attached hydraulic hose or rigid pipe.
3. Connection to NPT Male
Connects the precision flat-face ORFS style to traditional American National Standard Taper Pipe Threads (NPT). The tapered male thread forms a rugged physical bond via thread deformation, making it highly compatible with existing industrial industrial pump and pipe manifold frameworks.
4. Connection to Adjustable Locknut
Featured on our forged elbows and tees for port configurations. The Adjustable Locknut design uses a back-up washer and O-ring configuration, allowing operators to spin and align the body of the fitting in any 360-degree direction before locking down the seal tight against the manifold face.
Technical Data & Engineering Specifications
Our state-of-the-art CNC manufacturing facility ensures strict compliance with tolerance margins. Below are the baseline engineering metrics for our premium stainless steel ORFS line
ORFS Dash Size | Tube O.D. (inch) | ORFS Thread Size (UN/UNF) | Nominal Operating Pressure (316 Stainless Steel) |
-4 | 1/4" | 9/16-18 | Up to 630 Bar (9,100 PSI) |
-6 | 3/8" | 11/16-16 | Up to 630 Bar (9,100 PSI) |
-8 | 1/2" | 13/16-16 | Up to 630 Bar (9,100 PSI) |
-10 | 5/8" | 1-14 | Up to 420 Bar (6,000 PSI) |
-12 | 3/4" | 1-3/16-12 | Up to 420 Bar (6,000 PSI) |
-16 | 1" | 1-7/16-12 | Up to 420 Bar (6,000 PSI) |
-20 | 1-1/4" | 1-11/16-12 | Up to 280 Bar (4,000 PSI) |
-24 | 1-1/2" | 2-12 | Up to 280 Bar (4,000 PSI) |
Design Standards: ISO 8434-3, SAE J1453, SAE J514
Elastomer Compounds: Fluorocarbon (FKM / Viton) or Nitrile (NBR) for face groove O-rings and port seals.
Material Availability: AISI 304, AISI 316, AISI 316L, AISI 316Ti Stainless Steel
The Fitsch Advantage: Sourcing from Our China Factory
Purchasing your hydraulic components directly from Fitsch (Ningbo International Trade Co., Ltd.) provides distinct strategic benefits over standard distribution channels:
Over 20 Years of Rich Production Expertise: We deeply understand global precision requirements and standard certifications (ISO, DIN, SAE, JIS).
Massive Industrial Capacity: Armed with 200 advanced CNC machines, we comfortably handle scale orders with a maximum capacity of 1,500,000 fluid connectors per month.
Failproof Supply Chain Integration: We operate within our local industrial manufacturers union to lower overhead costs, passing those factory-direct savings straight to your procurement budget without compromising component tolerances.
Rigorous Quality Control Tracking: From raw material material-spectral testing to finalized thread go/no-go gauge validation, every batch is fully trackable.
Contact Us for Pricing & Catalogs
Ready to place a custom project order or request a full ORFS stainless catalog quote? Reach out to our technical support team:
Email: info@fitsch.cn
Factory Address: No.133-3 Anjiexi Road, Sanqishi Town, Yuyao 315412, China
Catalog of ORFS fittings O-RING FACE SEAL FITTING, O-RING FACE SEAL FITTING Products, O-RING FACE SEAL FITTING Manufacturers, O-RING FACE SEAL FITTING Suppliers and Exporters - FITSCH (Ningbo) International Trade Co., Ltd.
