air brake tubes end- fittings champions for mohan
DESCRIPTION
Air brake tubes End- FittingsTRANSCRIPT
1
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
8
• 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
11
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
12
•Dismantling and reassembling
Assembly process
To disconnect male nut and plug…
...pull off retaining clip…
…and detach connection