hydraulic o ring fitting sizes

The size of hydraulic O-ring joints usually refers to the size of threaded joints used for connection and sealing in hydraulic systems. These joints are usually composed of threads, and their sizes and specifications can vary according to different standards and international manufacturers. The following are some common hydraulic O-ring joint sizes and standards:

UNF (Unified National Fine) thread:

Common UNF threads include 1/4-28, 3/8-24, 7/16-20, etc.

UNF threads are typically used in high-pressure hydraulic systems.

NPT (National Pipe Thread) Thread:

Common NPT threads include 1/8 NPT, 1/4 NPT, 1/2 NPT, etc.

NPT threads are commonly used in pipeline connections and hydraulic systems.

BSP (British Standard Pipe) Thread:

Common BSP threads include 1/8 BSP, 1/4 BSP, 3/8 BSP, etc.

BSP threads are commonly used for hydraulic systems and pipeline connections, particularly popular in Europe and other regions.

JIC (Joint Industry Council) Thread:

Common JIC threads include 3/8-24, 9/16-18, 3/4-16, etc.

JIC threads are typically used for high-pressure connections in hydraulic systems.

ORFS (O-Ring Face Seal) Thread:

ORFS joints are hydraulic joints with O-ring seals, which typically have special threads such as 9/16-18, 3/4-16, 7/8-14, etc.

ORFS threads are used in high-pressure hydraulic systems to provide reliable sealing performance.