Tube Fittings and Adapters

Parker manufactures a broad line of steel and stainless steel tube fittings and adapters. Available sizes range from 1/8” through 2” with working pressures up to 7500 PSI. Steel fittings come standard with corrosion-resistant plating that lasts up to 1,000 hours, which exceeds SAE corrosion requirements.

  • Pipe Fittings and Port Adapters, including reducers, expanders, and conversion adapters
  • Pipe Swivel Adapters
  • O-Ring Face Seal Fittings (Seal Lok ™ and FastSeal ™)
  • 37° Flare Fittings (Triple-Lok ®)
  • Flareless Fittings (Ferulok ®)
  • EO Progressive Ring Fitting (metric flareless)
  • EO-2 Progressive Ring Fitting (metric flareless with elastomeric seal)

Parker Tube Fittings & Adapters

Pipe Fittings and Port Adapters

Reducer, Expander, Conversion

Parker’s steel and stainless steel pipe and port adapters are available in thread types including NPT, NPTF, NPSM, BSPT, BSPP, SAE O-ring Boss (ORB), ISO 6149 and Metric

View catalog pages for Parker Pipe Fittings and Port Adapters

Buy Online

Pipe Swivel Adapters

As one of the most traditional type of hydraulic connections, pipe swivel adapters add versatility to male NPT hose and adapter connections. You can use Parker’s pipe swivels with male NPT/NPTF hose fittings and adapters with a 30° machined seat.

View catalog pages for Parker Pipe Swivel Adapters

Buy Online

Seal-Lok ™ O-Ring Face Seal (ORFS)

Seal-Lok ORFS fittings are the most reliable leak-free connections available on the market today. Connections conform to SAE J518 and ISO 6162-1 and -2. They are especially suited for larger sizes, higher pressures and assembly in tight quarters.

View catalog pages for Parker Seal-Lok ORFS Fittings

Learn More

37° Flare Triple-Lok ® Tube Fittings

Triple-Lok® fittings are Parker’s 37° Flare tube fittings and adapters. They meet the requirements of both SAE J514 and ISO 8434-2 and offer the industry’s broadest offering of port ends. The compact Triple-Lok® design has a small metal to metal seal area. This results in a low assembly torque as well as high temperature and high pressure capability.

View catalog pages for Parker Triple-Lok 37° Flare Tube Fittings

Buy Online

Ferulok ® Flareless Bite Type Fittings

On a Ferulok assembly, the ferrule bites into the outer surface of the tube with enough strength to ensure its hold and seal the fluid. The quality of the bite is visible upon inspection, which minimizes the risk of improper assembly. Ferulok fittings are well-suited for use with tube wall thickness ranging from medium to extra heavy.

View catalog pages for Parker Ferulok ® Flareless Bite Type Fittings

Buy Online

EO / EO-2 Metric Flareless Bite Type

Parker EO and EO-2 metric flareless bite type tube fittings are considered the “world standard’ for many industrial manufacturers requiring dependable, leak-free hydraulic tube fittings.

The EO progressive ring fitting consists of a body, a progressive ring (ferrule) and a nut. The progressive ring has two cutting edges that bite into the outer surface of the tube to ensure its hold and its seal at high operating pressures. Presently, EO fittings are the most widely used bite type fittings in the world.

EO-2 high pressure tube fittings are a more recent development. They include an elastomeric seal on all joints in order to eliminate leaks.

View catalog pages for Parker EO and EO-2 Metric Bite Type Fittings

Buy Online