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Apr 22, 2023

END FITTINGS FOR

TML AIR BRAKE TUBINGS

CURRENT CONNECTORS FOR AIR BRAKE TUBING

All the tube suppliers are using the above type of End Fittings - Nuts Sleeve and Ferrules.

This requires manual torquing / tightening

ISSUES ASSOCIATED WITH CURRENT SYSTEM

Under tightening / Over tightening leading to leakage

Necessary multiple checks with soap solution on line

Next day check Repeated tightening in case of leak Vibration related loosening observed at PDI time. Loss of air pressure – overnight parking –

customer dissatisfaction.

NEED FOR A TECHNOLOGY CHANGE

To Break away from the nagging problemsand

To provide a superior system at par with best in the world.

Quick Connectors are a good way of solving our problems

VOSS SYSTEM 230 IS THE APPROPRIATE CHOICE OF END-FITTINGS FROM “COST / QUALITY” BENEFIT POINT OF VIEW.

VOSS 230 System Study

PLUG

HEX NUT OR COUPLING ELEMENT

RETAINING RING

RUBBER SPRING ELEMENT

VOSS 230 (Plug In) SYSTEM COMES IN TWO SIZES AS UNDER :1. NG8 TO BE USED FOR TUBE SIZES 6X4 AND 8X62. NG12 TO BE USED FOR TUBE SIZES 12X9 AND 15X12

VOSS 230 DETAILS

PLUG BODY (TUBE SIDE OF THE FITTING)

FIR TREE END ON WHICH THE NYLON TUBE IS FITTED

DIRT O-RING FOR DIRT PROTECTION

SEALING O-RING FOR PREVENTING AIR LEAKAGE

GROOVE FOR RETAINING

SEAT FOR RUBBER ELEMENT

VOSS 230 DETAILS

HEX NUT ASSEMBLY (BRAKE COMPONENT SIDE OF THE FITTING)

HEX NUT THREADED ONTO THE BRAKE COMPONENTTHE SEALING RING OF THE PLUG SITS AGAINST

THE ACCURATELY MACHINED INTERNAL HOLE OFTHE HEX NUT

O-RING TO PREVENT AIR LEAKAGE BETWEEN NUT AND BRAKE COMPONENT

RETAINING RING FOR LOCKING THE PLUG IN THE NUT

RUBBER SPRING ELEMENT – PROTECTION AGAINST VIBRATION

Apr 22, 2023

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• Plug-in process

Insertion of plug

Assembly process

Plug opens retaining clip

The retaining clip locks into the plug groove. The connection is now secured and leak-tight.

VOSS 230 STUDY OF QUALITY PARAMETERS

PARAMETER FEATUREFitment Process Simple Plug - In

Assembly Technology Latest - Less operator dependence

Proof of correct / complete Visual, Fork if reqd

Leakage Test required No

Insertion Force 60 - 70 Nm

Sealing to Brake Component O Ring

Male Nut / adaptor Assembly 2 Varieties -Only 12 Nm

Required Port Forms Special Voss Design

Modificas Reqd in Mating Parts Yes

Corrosion resistance Yes

No of parts to assemble - at Telco 4

Tube Connection Fir Tree

Plug Retention Single lock

VOSS SYSTEM 230 IN USE (SERVICE FEATURE)

When Brake Components have to be serviced the Quick Connectors can be easily disassembled using the following steps : Hold the tube and unscrew the Hex Nut. The whole assembly will come free

since the nut will rotate on the o-ring without damaging the o-ring If the nut and the plug have to be separated , simply expand the retaining

ring and remove it. The plug is now free to slide out of the Hex Nut. For reassembly it is very important that the rubber spring element, the

retaining ring and the hex nut be properly fited and then the tube pushed in.

Apr 22, 2023

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The line which has to be detached must be free of pressure.

Assembly process

•Dismantling and reassembling

Unscrew plug with tool as a unit without spring element. Before re-assembly check spring element for any damage.

Assemble the unit without spring element into the port again.

Apr 22, 2023

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•Dismantling and reassembling

Assembly process

To disconnect male nut and plug…

...pull off retaining clip…

…and detach connection