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CES M52X2 38S Plug

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CES M52x2 38S Plug – heavy series hydraulic blanking plug

The CES M52x2 38S plug is a hydraulic blanking plug designed for sealing hydraulic hose ends and other compatible connectors terminated with a nut. The product belongs to the heavy series S and is intended for connections with an M52x2 metric thread. Sealing occurs through the compression of appropriately matched conical surfaces when tightening the nut.

The blanking plug belongs to the TN 296 product group, referred to in English documentation as Blanking Plug for Tube Ends. It is used in power hydraulics for agricultural, orchard, forestry, construction machinery, and industrial equipment. It allows for sealing the appropriate end of a line during assembly, repair, maintenance, or modernization of the hydraulic system.

Technical parameters of the CES M52x2 38S plug

Product type: hydraulic plug for blanking hose ends.
Product type: CES.
Connection size: 38S.
Connection series: S – heavy.
Mating nut thread: M52x2.
Nominal thread diameter: 52 mm.
Thread pitch: 2 mm.
Sealing type: conical, compression during tightening.
Part number according to Rastelli Raccordi: TS296-38S.
Part number according to Cast: 108023.1.
Part number according to Vitillo: ATME38S.1.
Catalog type: TN 296.
English name: Blanking plug for tube ends.
Purpose: blanking hydraulic hose ends and appropriate connectors terminated with a nut.

Application of the CES 38S plug in power hydraulics

The CES M52x2 38S plug is used to close appropriately prepared hydraulic hose ends. It can be used during system disassembly, disconnecting hydraulic receivers, replacing components, and securing unused pipe connections.

The product is used in hydraulic systems of agricultural machines, orchard equipment, forestry equipment, construction machinery, and industrial installations. The plug allows for blanking a hose end equipped with a compatible nut without the need for permanent closure of the hose. Proper selection of the element should take into account the design of the entire connection and its operating conditions.

Heavy series S – connection size 38S

The 38S designation identifies the connection size belonging to the heavy series S. The CES M52x2 38S variant is designed to work with appropriately selected fittings of this series. When assembling components, the compatibility of the nut, the hose end, and the sealing surfaces must be checked.

The size 38S should not be identified with any connection with an M52x2 thread. The possibility of using the blanking plug is also determined by the cone geometry and the design of the mating hose end. Heavy series S elements should not be replaced with parts from another series without confirming their compatibility.

Conical compression seal – how does the CES plug work?

The CES plug uses a seal achieved by the pressure of appropriately matched conical surfaces. The blanking element is placed in the hose end and then pressed by a mating nut. During tightening, a clamping force is created that allows the connection to be closed.

Tightness depends on the compatibility of the plug and hose end dimensions, the condition of the mating surfaces, and correct installation. Dirt, scratches, or deformation of the conical surfaces can make it difficult to achieve a tight connection. The CES plug is not a universal plug intended for screwing into any threaded hole.

M52x2 thread – meaning of the designation

The M52x2 designation specifies a metric thread with a nominal diameter of 52 mm and a pitch of 2 mm. In the case of the CES plug, this dimension refers to the thread of the mating nut, which is responsible for pressing the blanking plug against the hydraulic hose end.

When selecting an M52x2 38S plug, the full connection designation should be verified. The thread size alone is not enough to confirm compatibility. The heavy series S, the sealing surface profile, and the design of the fittings used are also important.

Catalog designations for Rastelli Raccordi, Cast, and Vitillo

The CES M52x2 38S plug has catalog designations that allow the identification of the appropriate variant in the documentation of hydraulic fitting manufacturers. According to Rastelli Raccordi, the product appears under the designation TS296-38S, according to Cast as 108023.1, and according to Vitillo as ATME38S.1.

Knowledge of these symbols facilitates part search, comparing technical catalogs, and selecting the blanking plug during repairs of existing hydraulic systems. Before using a replacement element, ensure that its dimensions, geometry, and operational parameters meet the requirements of the specific connection.

Blanking plug for hydraulic tube ends TN 296

The TN 296 designation refers to the type of blanking plug intended for tube ends. The English name Blanking Plug for Tube Ends describes the product's function as an element closing the end of a line. The plug works with an appropriately selected nut that allows for achieving pressure on the conical surfaces.

Blanking plugs of this type should be distinguished from plugs mounted directly in threaded holes of hydraulic bodies. The CES design is intended for blanking hose ends or compatible connectors terminated with a nut.

Securing hoses during service

During the repair of a hydraulic system, it may be necessary to disconnect a hose from an actuator, distributor, or other system component. An appropriately selected CES 38S plug allows closing a free end equipped with a compatible nut. It helps limit the entry of contaminants and the outflow of residual oil during work carried out on a safely depressurized system.

If the blanking plug is to remain installed while the system is under pressure, the permissible parameters of the complete connection must be confirmed. The heavy series S designation itself does not define the maximum working pressure of a specific assembly.

Selection of the CES M52x2 plug for a hydraulic hose

Before purchasing, check the hose end size, the nut thread, and the connection series. For the CES M52x2 38S plug, an appropriate heavy series end equipped with an M52x2 nut and compatible conical surfaces is required.

When replacing a previously used blanking plug, the designations TS296-38S, 108023.1, and ATME38S.1 are helpful. They allow for more accurate identification of the correct plug type and reduce the risk of confusing it with products of other sizes or connection series.

Assembly and leak check of the CES 38S plug

Before starting assembly, turn off the device and safely depressurize the hydraulic system. Then, clean the hose end, check the condition of the conical surfaces and the thread of the mating nut. The plug should be correctly placed and pressed by the nut according to the requirements of the connection system used.

Do not attempt to fix leaks by over-tightening damaged components. After assembly, check for leaks and ensure that the complete connection is suitable for the operating conditions of the installation.

Key features of the CES M52x2 38S plug

Blanking plug for hydraulic hose ends.
Connection size 38S.
Heavy version – S series.
Compatible with M52x2 nut.
Conical compression seal.
Rastelli Raccordi designation: TS296-38S.
Cast designation: 108023.1.
Vitillo designation: ATME38S.1.
Catalog type: TN 296.
Application in agricultural, orchard, forestry, construction, and industrial hydraulics.

Technical specification

Parameter	Value
Product name	CES M52x2 38S Plug
Type	CES / TN 296
Nut thread	M52x2
Nominal thread diameter	52 mm
Thread pitch	2 mm
Series	38S – heavy
Sealing type	Conical, compression
Rastelli Raccordi	TS296-38S
Cast	108023.1
Vitillo	ATME38S.1
English name	Blanking plug for tube ends
Purpose	Blanking of hydraulic hose ends

Frequently Asked Questions (FAQ)

What is the CES M52x2 38S plug used for?

It is used for blanking hydraulic hose ends and other compatible connectors terminated with a nut. Connection tightness is achieved by the pressure of conical surfaces.