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Intermediate sleeve 20mm (for flaring)

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Manufacturer: HYDRON hydraulika siłowa (go to products)

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Intermediate sleeve 20mm for flaring hydraulic pipes – 20 mm

The 20mm intermediate sleeve for flaring is a connection element designed for steel hydraulic pipes with an outer diameter of 20 mm. It works with a properly prepared pipe flare, a nut, and a matching pipe fitting. Its task is to provide support for the formed end and transfer the clamping force during the tightening of the connection. The sleeve is used in power hydraulics, machine installations, and systems utilizing rigid lines for transmitting hydraulic oil.

The 20mm size means the outer diameter of the mating pipe is 20 mm. This is an important selection parameter, but not the only one. To achieve a proper connection, it is also necessary to match the sleeve to the type of flare, nut, and connector design.

Technical parameters of the 20mm intermediate sleeve

Product type: intermediate sleeve for flaring.
Nominal size: 20mm.
Outer diameter of the mating pipe: 20 mm.
Connection type: tubular, flared.
Purpose: steel hydraulic pipes.
Function: flare support and transmission of nut clamping force.
Mating elements: 20mm pipe, matching nut, and connector.
Field of application: power hydraulics and machine pipe installations.

Application of the 20mm sleeve in power hydraulics systems

The 20mm intermediate sleeve is designed for making connections in rigid pipe lines used in hydraulic installations. Elements of this type are used in construction, agricultural, and industrial machinery, hydraulic power packs, technological devices, and installations supplying hydraulic components.

Steel pipes with an outer diameter of 20 mm can be used in supply, control, or return lines, depending on the design parameters of the installation. Selecting the appropriate connection requires considering working pressure, wall thickness, type of medium, and mechanical loads occurring during machine operation.

The role of the intermediate sleeve in a flared connection

In the flared system, the pipe end is properly flared using a forming tool. The resulting flare works with the sealing surface of the connector. An intermediate sleeve placed on the nut side acts as a thrust element that allows the clamping force to be transferred to the prepared pipe end.

A proper connection requires a precise fit of the mating surfaces. Excessive flare deformation, an asymmetrical shape, or incorrect sleeve selection can lead to uneven pressure and loss of tightness. Therefore, during assembly, elements belonging to a compatible connection system should be used.

Selection of 20mm sleeve for 20 mm steel pipe

The basis for selecting the 20mm sleeve is the pipe's outer diameter of 20 mm. However, it should be remembered that pipes with the same outer diameter may differ in wall thickness. This parameter affects the possibility of properly executing the flare and should comply with the requirements of the tool used and the applied connector system.

Before completing the connection, the size and type of the nut thread, the geometry of the sealing surface, and the compatibility of the connector with the prepared flare should also be checked. The 20mm designation specifies the pipe diameter but does not automatically define the thread type or all dimensions of the remaining elements.

Flaring sleeve vs. cutting ring

The 20mm intermediate sleeve is not a replacement for a cutting ring. In a flared connection, the pipe end is formed before the connector is screwed together. In a cutting ring system, the connection is created by appropriately clamping the ring onto the pipe surface. Both solutions use different elements and require proper assembly technology.

The 20mm sleeve should also not be confused with a crimping ferrule intended for crimping hydraulic hoses. The described product is an element of a rigid steel pipe connection, whereas crimping ferrules for flexible hoses are selected according to the hose construction and size and the fitting used.

Preparing the pipe for flaring

Before starting work, check the pipe diameter, wall thickness, and surface condition. The pipe end should be cut evenly, cleaned, and deburred. Next, install the appropriate nut and intermediate sleeve in the order required by the chosen connection system.

The flare should be made with a tool designed for the specific type of connection and pipe diameter. After forming, check its symmetry, proper shape, and lack of damage. Cracks, creases, and irregularities of the sealing surface are grounds for re-preparing the end.

Assembly and leak testing of the 20mm connection

When screwing the connection together, maintain the correct alignment of the pipe relative to the connector. Forcing its position with excessive tightening force is unacceptable. The nut should be tightened according to the manufacturer's requirements for the system used. Tighter tightening should not be treated as a way to correct a faulty flare.

The pipeline should be properly supported to limit connection loads resulting from vibrations and machine operation. After completing the assembly, a leak test should be carried out. All service work must be performed after safely decompressing the hydraulic system.

Key advantages of the 20mm intermediate sleeve

Intended for flared connections of steel pipes.
Size matched to the 20 mm outer diameter of the pipe.
Support for a properly formed pipe end.
Works with a matching nut and hydraulic connector.
Suitable for use in power hydraulics installations.
Useful for the installation of new pipe lines.
Can be used during repairs and modernization of installations.

Technical specification

Parameter	Value
Product name	Intermediate sleeve 20mm
Size	20mm
Pipe outer diameter	20 mm
Connection type	Flared
Purpose	Steel hydraulic pipes
Function	Flare support and interaction with the nut
Application	Pipe connections in power hydraulics

Frequently Asked Questions (FAQ)

Which pipe does the 20mm intermediate sleeve fit?

The 20mm sleeve is intended for flared connections of steel pipes with an outer diameter of 20 mm. You should also check the wall thickness and compatibility of the connection elements.