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  • Machining Valves and Fittings with a US25 Beveler for the Nuclear Industry
Usinage-US25-1.jpg

Machining Valves and Fittings with a US25 Beveler for the Nuclear Industry

Publications presse 01/11/2017

Machining a by-pass connection welded on a valve located in a nuclear facility.

Machininga by-pass connection weldedon a valve located in a nuclear facility.

Description of Needs:

Machining a by-pass connection welded on a valve located in a nuclear facility.

The angle and the root face of the connection failed to meet the specifications for the welding operation.

The installation of the valve on a lathe is very complicated.

SERCO has, therefore, been requested to machine this connection directly on-site while respecting the dimensions and the tolerances of the drawing (0.1 mm (.004”).

ID of the connection: 25 mm (1”).

OD of the connection: 34 mm (1.339”).

Tolerance of the root face dimension: 0.1 mm (.004”).

Equipment Used:

PROTEM US25 pipe beveling machine with pneumatic drive.

Mandrel - Ø 18 mm (.709”).

Specific tool bits.

Protective collet for the ID of the connection.

Response Time:

Assembly of the machine.
+ adjustment of the machine in the connection.
+ machining of the connection.
+ disassembly of the machine.

TOTAL : 20 minutes

Result:

The customer performed a control with the use of a wax molding.

The result was verified to the tolerances requested.

The use of a portable machine avoided the need to install the valve on a conventional lathe.

The adjustment on a lathe would have required a great deal of time. In addition, the accuracy would not have been guaranteed.

Only the PROTEM machine was rigid and accurate enough to perform such a machining.

Pictures of the Operation:

  • Usinage-US25-1.jpg
    PROTEM US25 pipe beveling machine with pneumatic drive. Machining Valves and Fittings with a US25 Beveler for the Nuclear Industry
  • Usinage-US25-2.jpg
    PROTEM US25 pipe beveling machine with pneumatic drive. Machining Valves and Fittings with a US25 Beveler for the Nuclear Industry
  • Usinage-US25-3.jpg
    PROTEM US25 pipe beveling machine with pneumatic drive. Machining Valves and Fittings with a US25 Beveler for the Nuclear Industry