ORFS O-ring set ( thin o-rings ) 

In the following category, we present a set of thin o-rings, i.e., o-rings intended for ORFS American threads. ORFS O-rings are specific ( they are much thinner than metric o-rings and significantly thinner than inch o-rings. O-rings of this type are used to seal face connections used in ORFS threads. ORFS connections are designed to transmit very high pressures - they use a face connection, with a nut with a flat front surface on one side and an external thread with a flat surface and a thin ORFS o-ring in a specially machined groove on the flat front surface of the external thread on the other side. Our offer includes all types of hydraulic o-rings ( thin, thicker-metric, very thick -inch ) 

What are ORFS o-rings?

ORFS (O-Ring Face Seal) o-rings are seals designed for use in hydraulic fittings of the ORFStype, which ensure exceptionally high tightness in power hydraulic systems. They are an integral element used in systems requiring reliable sealing of connections exposed to high pressures and difficult operating conditions.

Features of thin ORFS o-rings

ORFS o-rings available at the Hydron store are distinguished by excellent technical parameters, thanks to which they meet the highest standards in the power hydraulics industry. Key features include: High quality materials – made of durable elastomers such as NBR or FKM (Viton), which guarantees resistance to hydraulic oils, greases, as well as high temperatures. Standard dimensions – compliant with SAE J1453 standards, enabling a match with ORFS hydraulic fittings. Pressure resistance – they provide effective tightness even in high-pressure applications. Ease of assembly – suitable for quick and reliable application in hydraulic systems.

Where are thin ORFS seals used? 

ORFS o-rings are used in various hydraulic systems where the highest standards of tightness and durability are required. They are particularly used in: Power hydraulics – sealing connections in construction, agricultural, and industrial machinery. High-pressure systems – reliable operation even at pressures up to 400 bar. Mobile applications – such as hydraulic systems in trucks or specialized equipment. Industrial production lines – sealing elements of hydraulic systems in industrial environments.

thin ORFS seals – reliable seals for hydraulic fittings

ORFS O-rings are specialized seals designed for hydraulic fittings of the ORFS (O-Ring Face Seal) type, used in installations where very high connection tightness is required. This solution is based on a face seal using an o-ring, which effectively eliminates leaks even at high operating pressures. ORFS o-ring sets are a practical addition to the equipment of workshops involved in power hydraulics, hose assembly, and machine service.

ORFS O-rings as a tightness standard in power hydraulics

ORFS o-rings are commonly used in modern power hydraulic systems, where traditional thread seals may prove insufficient. The face seal achieved by the ORFS o-ring allows for a very secure connection, resistant to vibrations, pressure pulsations, and repeated assembly and disassembly. This solution is perfectly suited for installations using hydraulic hoses, hydraulic fittings ORFS, elbows and other elements of high-pressure systems.

Practical ORFS thin rubber o-ring sets for service work

ORFS thin rubber seal sets allow for quick selection of the correct seal without having to order individual components each time. This is particularly important for services involved in crimping hydraulic lines, repairing high-pressure hydraulic hoses and installing systems based on ORFS connectors. Having a complete set of ORFS o-rings significantly shortens repair time and reduces machine downtime.

ORFS O-rings in connections with hydraulic hoses

ORFS o-rings are an integral part of face connections used in hydraulic hoses, especially in systems requiring maximum tightness. Thanks to the use of an ORFS o-ring, the connection does not require additional sealing with tape or paste, which simplifies assembly and increases the repeatability of the result. This solution is often used in connections for pumps, directional control valves, valves, and hydraulic blocks.

Practical application of ORFS seals

ORFS seals are used in construction, agricultural, and industrial machinery, where hydraulic systems operate under high pressure and are exposed to intense vibrations. They are commonly used in installations based on ORFShydraulic fittings, hydraulic lines, valves and directional control valves. Thanks to their design, they ensure long-term tightness even in demanding operating conditions.

Who are ORFS seal kits intended for

ORFS o-ring sets are intended for professional power hydraulics workshops, mobile services, and maintenance points. This solution is dedicated to fitters and mechanics who work daily with power hydraulics, hydraulic hoses, hydraulic fittings ORFS and high-pressure installations requiring secure and durable seals.

Why use ORFS o-rings instead of other seals

Using ORFS thin rubber o-rings helps reduce the risk of leaks, simplify assembly, and increase the durability of hydraulic connections. Face sealing eliminates the thread's influence on tightness, which is particularly important in systems operating under heavy loads. This solution works perfectly with high-pressure hydraulic hoses, crimping fittings  ORFS and modern power hydraulic systems.

Technical parameters

• Product type: ORFS o-rings

• Seal type: face (O-Ring Face Seal)

• Standard: ORFS

• Size range: matched to ORFS connectors

• Application: sealing hydraulic connections

• Intended use: power hydraulics, high-pressure installations

• Installation: in the front seat of the ORFS connector

• Packaging: set / box (depending on the variant)

ORFS o-rings are a proven and professional solution for hydraulic installations where high tightness, connection durability, and the safety of the entire system's operation are important.

• thin o-rings
• available in a box or individually 
• highest quality 
• intended for power hydraulics