Hydraulic fitting – metric and imperial sizes

Discover our hydraulic fittings in OEM quality for secure, leak-proof and pressure-resistant connections in hydraulic systems. Learn more...
 
  

Hydraulic component DIN cutting ring 08L/S
Cutting ring 08L/S

  • Cutting ring

  • pipe-Ø: 8 mm

  • max. working pressure 315 bar

0,37 EUR
0,32 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
0,32 EUR excl. 17% tax
Straight union 08L
Straight union 08L

  • straight unoin, L-series

  • pipe-Ø: 8 mm

  • thread: M14x1,5

  • max. working pressure 315 bar

  • SW: 14

0,94 EUR
0,80 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
0,80 EUR excl. 17% tax
Straight reducer union 10L/06L
Straight reducer union 10L/06L

  • straight reducer union, L-series

  • S1: pipe-Ø 10 mm

  • S1: thread M16x1,5

  • S2: pipe-Ø 6 mm

  • S2: thread M12x1,5

  • max. working pressure: 315 bar

  • SW: 17
3,77 EUR
3,22 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
3,22 EUR excl. 17% tax
Straight reducer union 10S/06S
Straight reducer union 10S/06S

  • straight reducer union, S-series

  • S1: pipe-Ø 10 mm

  • S1: thread M18x1,5

  • S2: pipe-Ø 6 mm

  • S2: thread M14x1,5

  • max. working pressure: 630 bar

  • SW: 19
7,68 EUR
6,56 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
6,56 EUR excl. 17% tax
Elbow union 08L
Elbow union 08L

  • elbow unoin, L-series

  • pipe-Ø: 8 mm

  • thread: M14x1,5

  • max. working pressure 315 bar

4,05 EUR
3,46 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
3,46 EUR excl. 17% tax
Tee union 08L
Tee union 08L

  • tee unoin, L-series

  • pipe-Ø: 8 mm

  • thread: M14x1,5

  • max. working pressure 315 bar

4,70 EUR
4,02 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
4,02 EUR excl. 17% tax
Product image Straight bulkhead union 08L
Straight bulkhead union 08L

  • straight bulkhead unoin, L-series

  • pipe-Ø: 8 mm

  • thread: M14x1,5

  • max. working pressure 315 bar

  • SW1: 19

  • SW2: 19

2,76 EUR
2,36 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
2,36 EUR excl. 17% tax
Swivel nut elbow 08L
Swivel nut elbow 08L

  • swivel nut elbow, L-series

  • pipe-Ø: 8 mm

  • thread: M14x1,5

  • max. working pressure 315 bar

  • SW: 17

4,31 EUR
3,68 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
3,68 EUR excl. 17% tax
Product image Swivel nut branch tee 08L
Swivel nut branch tee 08L

  • Swivel nut branch tee, L-series

  • pipe-Ø: 8 mm

  • thread: M14x1,5

  • max. working pressure 315 bar

  • SW: 17

7,18 EUR
6,14 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
6,14 EUR excl. 17% tax
Product image Swivel nut run tee 08L
Swivel nut run tee 08L

  • Swivel nut run tee, L-series

  • pipe-Ø: 8 mm

  • thread: M14x1,5

  • max. working pressure 315 bar

  • SW: 17

7,04 EUR
6,02 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
6,02 EUR excl. 17% tax
Swivel union 08L
Swivel union 08L

  • swivel unoin, L-series

  • pipe-Ø: 8 mm

  • thread: M14x1,5

  • max. working pressure 315 bar

  • SW: 17

4,91 EUR
4,20 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
4,20 EUR excl. 17% tax
Product image Swivel reducer 06L/08S
Swivel reducer 06L/08S

  • swivel reducer, L-series / S-series

  • S1: pipe-Ø 6 mm

  • S1: thread M12x1,5

  • S2: pipe-Ø 8 mm

  • S2: thread M16x1,5

  • max. working pressure: 315 bar

  • SW 1: 14

  • SW 2: 19

16,08 EUR
13,74 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
13,74 EUR excl. 17% tax
Product image Swivel reducer 06L/10L
Swivel reducer 06L/10L

  • swivel reducer, L-series

  • S1: pipe-Ø 6 mm

  • S1: thread M12x1,5

  • S2: pipe-Ø 10 mm

  • S2: thread M16x1,5

  • max. working pressure: 315 bar

  • SW 1: 14

  • SW 2: 19

10,83 EUR
9,26 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
9,26 EUR excl. 17% tax
Product image Swivel reducer 10S/10L
Swivel reducer 10S/10L

  • swivel reducer, S-series / L-series

  • S1: pipe-Ø 10 mm

  • S1: thread M18x1,5

  • S2: pipe-Ø 10 mm

  • S2: thread M16x1,5

  • max. working pressure: 315 bar

  • SW 1: 22

  • SW 2: 19

12,10 EUR
10,34 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
10,34 EUR excl. 17% tax
Product image Swivel reducer 10S/12S
Swivel reducer 10S/12S

  • swivel reducer, S-series

  • S1: pipe-Ø 10 mm

  • S1: thread M18x1,5

  • S2: pipe-Ø 12 mm

  • S2: thread M20x1,5

  • max. working pressure: 400 bar

  • SW 1: 22

  • SW 2: 24

13,03 EUR
11,14 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
11,14 EUR excl. 17% tax
Product image Straight reducer swivel union 10L/06L
Straight reducer swivel union 10L/06L

  • straight reducer swivel union, L-series

  • S1: pipe-Ø 10 mm

  • S1: thread M16x1,5

  • S2: pipe-Ø 6 mm

  • S2: thread M12x1,5

  • max. working pressure: 315 bar

  • SW: 19
5,36 EUR
4,58 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
4,58 EUR excl. 17% tax
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Whether cutting-ring fittings, elbow fittings, adapters or T-pieces – our range covers all common sizes, materials and connection types according to DIN, ISO and SAE standards. Ideal for mechanical engineering, vehicle technology, industrial and agricultural equipment, our fittings offer high load capacity, corrosion protection and easy installation.

 

Hydraulic Fittings – Frequently Asked Questions

What are hydraulic fittings and what are they used for?

Hydraulic fittings are connectors used to join tubes and hoses in hydraulic systems securely, pressure-resistant and leak-free. They serve as an interface between hydraulic power units, valves and consumers such as hydraulic motors or cylinders. Applications include mechanical engineering, vehicle technology, industrial systems, agricultural machinery and construction, even under high pressures and dynamic loads.

Which criteria are decisive for selecting the correct hydraulic fitting?

  • Tube or hose dimensions (outside diameter)
  • Operating pressure (often several hundred bar)
  • Medium and operating conditions (fluid, temperature, corrosion, vibration)
  • Material selection: steel, stainless steel, brass
  • Connection types and sealing methods (cutting ring, O-ring, flange)
  • Standards: DIN, ISO, SAE
  • Ease of installation and maintenance
  • Safety margin for pressure and load

What materials are hydraulic fittings typically made from?

  • Steel (often zinc-plated) – for high-pressure industrial applications
  • Stainless steel – corrosion-resistant, suitable for aggressive or hygienic environments
  • Brass – for mobile or lightweight applications with lower loads

The choice depends on pressure, medium, corrosion protection requirements and temperature resistance.

What different sizes and types of hydraulic fittings exist?

Available in sizes from 4 mm to 42 mm outer diameter, in both metric (DIN) and imperial (BSP, NPTF, UNF) versions.

Types:

  • Straight connectors
  • Elbow fittings
  • Bulkhead fittings
  • T-pieces, connectors, adapters, screw-in fittings, reducers etc.

What advantages do hydraulic fittings offer in hydraulic systems?

  • High pressure resistance (several hundred bar)
  • Leak-free connections thanks to precise sealing elements
  • Compact design for space-saving installation
  • Wide range of materials for different media and environments

What must be considered when installing and assembling hydraulic fittings?

  • Observe tightening torques according to manufacturer specifications
  • Use reinforcement sleeves for thin-walled tubes
  • Sealing function through cutting ring or sealing element
  • Before assembly: clean and inspect threads, seals and sealing surfaces

How is the maintenance of hydraulic fittings carried out and which factors influence their service life?

  • Regular visual inspection
  • Retightening if vibrations occur
  • Inspect/replace seals and cutting rings during disassembly

Factors influencing service life:

  • Material quality
  • Operating pressure
  • Fluid compatibility
  • Temperature exposure
  • Maintenance intervals
  • Environmental conditions (corrosion, mechanical stress)

Where can hydraulic fittings be purchased, and which quality features should be considered?

Hydraulic fittings are available from specialist suppliers such as the Hydromot Hydraulic Shop. Purchasing in OEM quality is recommended to ensure the highest product standards.

Important quality features:

  • Compliance with international standards (DIN, ISO, SAE)
  • Maximum operating pressure
  • Material specifications
  • Compatibility with tube/hose dimensions and medium
  • Professional consultation for special requirements