Hydraulic Fittings

Hydraulic fittings form part of a hydraulic system which connects hoses, pipes and tubes. There are various fittings which are used to connect the system together and help the hydraulic fluid to flow through. Hydraulic fittings, or hose fittings, are used to connect hydraulic hoses and pipes to other components such as valves and pumps.

Hydraulic fittings will usually have a male and/or female connection which join to other components. The connections are usually threaded and there are several thread standards available, such as JIC, BSP and BSPP. BSP male threads will seal with BSP female threads, for example. Popular materials include plastic, brass and stainless steel fittings.

Types of hydraulic fittings:

  • Plugs
  • Adapters
  • Couplings
  • Unions
  • Reducers
  • Elbows

How are hydraulic fittings attached?

There are several methods used to attach a hydraulic fitting. Examples include:

  • Compression fittings provide water tight connections by using pressure to seal the connection. They usually use a compression nut which, when tightened, removes space between the ferrule and the pipe.
  • Threaded fittings have screw threads on both sides of the connection. They accept connections with compatible threads and screw together for a secure connection. Not all threads provide a tight seal and may benefit from additional coatings or seals.
  • Crimped fittings require crimping of the hose to the fitting. You may require a crimping tool to achieve this.

Thread Types

Hydraulics machines are used all across the world and there are many components used in each system. Thread types are used to help make parts easily identifiable and easy to maintain and replace. Some examples of thread standards include:

  • NPT stands for National Pipe Thread where the threads are at a 60° angle. There is also NPT (National Pipe Taper) and NPS (National Pipe Straight).
  • BSP fittings stands for British Standard Pipe where the angle of the threads is 55°. This standard includes BSPT (British Standard Pipe Taper) and BSPP (British Standard Parallel Pipe).
  • Metric threads are specified by their diameter and pitch in millimetres (mm).

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Omschrijving Prijs Connector A Hydraulic Fitting Type Connector B Material Finish Connector A - Thread Size Connector A - Thread Standard Connector A - Gender Connector B - Thread Size Connector B - Gender Connector B - Thread Standard Maximum Operating Pressure Maximum Operating Temperature Minimum Operating Temperature
RS-stocknr. 871-2278
FabrikantnummerVSTI18x1.5EDCF
FabrikantParker
5,51 €
Each
Aantal stuks
- Hydraulic Blanking Plug - Steel Zinc Plated - Metric - - - - 400bar - -
RS-stocknr. 498-312
Fabrikantnummer6PNK4S
FabrikantParker
1,928 €
Each (In a Pack of 5)
Aantal stuks
- Hydraulic Blanking Plug - Steel Yellow Chromated, Zinc Plated 3/8in G - - - - 380bar +120°C -40°C
RS-stocknr. 110-501
FabrikantnummerRI1/4EDX3/8CF
FabrikantParker
2,96 €
Each (In a Pack of 2)
Aantal stuks
G 1/4 Male Hydraulic Straight Threaded Reducer G 3/8 Female Steel Zinc Plated 1/4in G Male 3/8in Female G 400bar +100°C -30°C
RS-stocknr. 283-1345
FabrikantnummerFZ1614
FabrikantEnerpac
15,85 €
Each
Aantal stuks
NPT 3/8-18 Female Hydraulic Straight Threaded Adaptor NPT 3/8-18 Female - - 3/8-18 NPT Female 3/8-18 Female NPT 700bar - -
RS-stocknr. 797-2003
Fabrikantnummer6C6MK4S
FabrikantParker
10,53 €
Each
Aantal stuks
G 3/8 Male Hydraulic Elbow Threaded Adaptor G 3/8 Female Steel Zinc Plated - G Male - Female G 350bar - -
RS-stocknr. 807-687
Fabrikantnummer4-4F6MK4S
FabrikantParker
3,32 €
Each (In a Pack of 2)
Aantal stuks
G 1/4 Male Hydraulic Straight Threaded Adaptor G 1/4 Female Steel Yellow Chromated, Zinc Plated 1/4in G Male 1/4in Female G 450bar +120°C -40°C
RS-stocknr. 797-1962
Fabrikantnummer4EMK4S
FabrikantParker
7,43 €
Each
Aantal stuks
G 1/4 Male Hydraulic Elbow Threaded Adaptor G 1/4 Male Steel Zinc Plated - G Male - Male G 350bar - -
RS-stocknr. 871-2253
FabrikantnummerVSTI10X1EDCF
FabrikantParker
3,24 €
Each
Aantal stuks
- Hydraulic Blanking Plug - Steel Zinc Plated - Metric - - - - 400bar - -
RS-stocknr. 914-9482
Fabrikantnummer58411
FabrikantElesa-Clayton
3,92 €
Each
Aantal stuks
- Hydraulic Blanking Plug - Polyamide Based Technopolymer Matte 1-1/4in G - - - - - +100°C -30°C
RS-stocknr. 302-8663
Fabrikantnummer16F3MXS
FabrikantParker
11,84 €
Each (In a Pack of 2)
Aantal stuks
- Hydraulic Male Stud - Steel Zinc Plated - R, UNF - - - - 160bar +120°C -40°C
RS-stocknr. 302-8590
Fabrikantnummer6F3MXS
FabrikantParker
2,605 €
Each (In a Pack of 2)
Aantal stuks
- Hydraulic Male Stud - Steel Zinc Plated - R, UNF - - - - 315bar +120°C -40°C
RS-stocknr. 871-2281
Fabrikantnummer6F42EDMXS
FabrikantParker
8,35 €
Each
Aantal stuks
- Hydraulic Straight Threaded Adaptor BSPP 1/4-19 Male Steel Zinc Chromium 6 - - - - Male BSPP 6000 psi - -
RS-stocknr. 367-5859
Fabrikantnummer0913 00 17
FabrikantLegris
3,37 €
Each (In a Pack of 3)
Aantal stuks
R 3/8 Male Hydraulic Elbow Threaded Adaptor G 3/8 Female Brass Nickel Plated 3/8in R Male 3/8in Female G 60bar +80°C -10°C
RS-stocknr. 283-3420
Fabrikantnummer58298
FabrikantElesa-Clayton
1,438 €
Each (In a Pack of 5)
Aantal stuks
- Hydraulic Blanking Plug - Glass Fibre Reinforced Plastic (GRP) Matte 3/4in G - - - - - +130°C -30°C
RS-stocknr. 367-5938
Fabrikantnummer0915 00 17
FabrikantLegris
4,853 €
Each (In a Pack of 3)
Aantal stuks
G 3/8 Female Hydraulic Tee Threaded Adaptor G 3/8 Female Brass Nickel Plated 3/8in G Female 3/8in Female G 20bar +120°C -20°C
RS-stocknr. 367-5865
Fabrikantnummer0913 00 21
FabrikantLegris
5,087 €
Each (In a Pack of 3)
Aantal stuks
R 1/2 Male Hydraulic Elbow Threaded Adaptor G 1/2 Female Brass Nickel Plated 1/2in R Male 1/2in Female G 60bar +80°C -10°C
RS-stocknr. 797-1980
Fabrikantnummer4JMK4S
FabrikantParker
8,55 €
Each
Aantal stuks
G 1/4 Male Hydraulic Tee Threaded Adaptor G 1/4 Male Steel Zinc Plated - G Male - Male G 350bar - -
RS-stocknr. 704-3108
FabrikantnummerPM450611E
FabrikantJohn Guest
9,91 €
1 Bag of 5
Bag(s)
G 1/8 Male Hydraulic Straight Compression Tube Fitting - Acetal - 1/8in G - - - - 16bar - -20°C
RS-stocknr. 807-520
FabrikantnummerWH15LRCF
FabrikantParker
22,73 €
Each
Aantal stuks
- Hydraulic Banjo Compression Tube Fitting - Mild Steel Zinc Plated 1/2in BSP - - - - 315bar +120°C -40°C
RS-stocknr. 498-182
Fabrikantnummer12H6K4S
FabrikantParker
4,445 €
Each (In a Pack of 2)
Aantal stuks
G 3/4 Female Hydraulic Straight Threaded Adaptor G 3/4 Female Steel Yellow Chromated, Zinc Plated 3/4in G Female 3/4in Female G 280bar +120°C -40°C