Description

QC Hydraulics ORB (O-ring Boss) fittings or SAE fittings are similar to a JIC fittings without the 37 degree flare. They also have an o-ring for additional sealing.

This fitting is also known as O-Ring Boss (ORB) Recommended by the NFPA for optimal leakage control in medium and high pressure hydraulic systems. The male fitting has a straight thread and O-ring. The female port has a straight thread, a machined surface (minimum spotface) and a chamfer to accept the O-ring.

ORB Hydraulic Adapters available thread configurations:

  • ORB JIC Straight Adapters
  • ORB JIC Swivel Fittings
  • ORB Male Plug
  • ORB Hollow Plug
  • ORB Elbow
  • ORB Tee

Size Range:

1/8”-2”

Material:

Stainless Steel(SS 304, SS 316, SS 316L, SS 316Ti)

O-Ring Boss Hydraulic Tube Fitting, Pressure Ratings

Pressure Ratings For Fittings With JIC 37° Flare Swivels, O-ring Port Plugs and Straight Thread Stud Ends(Inch)
Nominal Pipe Size Threads Size (Notes 1&2) Working Pressure(Mpa)
Nom SAE Dash Size Nom Inch Tube O.D SAE J514 Flare & SAE J1926/ISO 11926-3 O-ring Port Thread Size 37° Flare Tube End, Union and Bulkheads 37° Female Swivels Port Plugs/Non Adjustable Stud Adjustable Stud
-2 1/8 5/16-24 UNF 34.5 34.5 34.5 34.5
-3 3/16 3/8-24 UNF 34.5 34.5 34.5 34.5
-4 1/4 7/16-20 UNF 34.5 31 34.5 31
-5 5/16 1/2-20 UNF 34.5 27.5 34.5 27.5
-6 3/8 9/16-18 UNF 34.5 27.5 34.5 27.5
-8 1/2 3/4-16 UNF 31 27.5 31 27.5
-10 5/8 7/8-14 UNF 24 21 24 21
-12 3/4 1 1/16-12 UNF 24 21 24 21
-14 7/8 1 3/16-12 UNF 21 17 21 17
-16 1 1 5/16-12 UNF 21 17 21 17
-20 1 1/4 1 5/8-12 UNF 17 14 17 14
-24 1 1/2 1 7/8-12 UNF 14 10.5 14 10.5
-32 2 2 1/2-12 UNF 10.5 8 10.5 8
  1. Threads per SAE J475 Class 2A ext. Class 2B int.(Ref。ISO-263/ISO-R725)
  2. Unified class 2B threads apply to swivel nuts and with minor diameter modified to class 3B limits for locknuts.

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