Salient characteristics.docx

Salient characteristics:

For JML’s: 2087-3757 thru 2087-3760

JML: 2087-3757 (item CLIN 0001)

DESCRIPTION:

Has to be Portable Boring Bars, capable of boring and re-facing ball valves in-line, for removing porosity, cuts, or corrosion and/or reboring and re-facing after weld build-up. The machine have to able to be used for shipboard in-line work or work in the shop. The machine has to be able to have a fast set up makes, having the required angle of degree built in. Has to be equipped with a micrometer fitting, making it possible to adjust the cut to any amount necessary from .001” to as much as required. The machine must be capable of boring metals surfaces and /or epoxy, stainless steel seats, holding dimensions within .001” of an inch. Need machine to be able to work on valves 2-1/2” Top Loading Straight Line.

JML: 2087-3758 (item CLIN 0002)

DESCRIPTION:

This Machine permits removal of one or more nozzles (Poppet Valves) from steam chest installed. A portable cutting tool is mounted on the top of a governor chest after the chest cover and valving mechanisms have been removed from chest. The cutting tool rotates and axially advances a cutting head to cut away the weld material which welds a nozzle to a wall of the governor chest. This permits removal and replacement of the nozzle. The cutting tool is mounted on a mounting plate so as to permit selection of one of several locations as cutting site thus permitting use of a single cutting tool to effect the removal of all the nozzles within a governor chest. The cutting head carries two tool bits which cut in angular overlapping paths and the cutting head is recessed so it may pass over a nozzle as a weld is cut. A second cutter head is provided for refinishing the nozzle to seat after the nozzles have been removed. Different interchangeable mounting plates permit the cutting tool to be utilized on the chest of different sizes or having different spacing between nozzles.

JML: 2087-3759 and 2087-3760 (item CLIN 0003 & 0004)

DESCRIPTION:

These are mounting plates that are made to adapt the new VBB-850 machine. These plates are being bought at the same time to allow us to use the machine on the different poppet valves on the submarines. Giving it the versatility that we require from a machine.