collected or recovered from solid waste and reprocessed to become a source of raw
materials , as opposed to virgin raw materials. None of the above shall be
interpreted to mean that the use of used or rebuilt products is allowed under this
specification unless otherwise specifically specified.
3.2.2 Pr ohibited material. The following materials shall be prohibited for
use in purifiers covered by this specification:
(a)
Magnesium and its alloys.
(b)
Cast iron (except nodular iron).
(c)
Semi-steel.
(d)
Cadium plating.
(e)
Asbestos.
3.2.3 Mercury. The purifier shall be free of mercury contamination. During
the manufacturing process, tests, and examination the product to be offered for
acceptance shall not come in direct contact. with mercury or any of its components,
nor with any mercury containing device employing a single boundary of containment
(see 6.3).
3.2.4 Ancillary components . Materials for ancillary components, such as
motors and controllers, shall be in accordance with the specification for those
components.
3,3 Construction. Purifiers shall be constructed to separate contaminants
and water from jet fuel and discharge purified fuel under pressure through closed
piping to the ship's fuel system (see 6.3 and 6.4). Water separated from the fuel
shall be continuously discharged to the ship's oily water drain collection system.
Separated solids shall collect within the bowl until they are removed by manual
cleaning.
The purifier shall be constructed for simplicity of operation and
repair and shall perform in accordance with design characteristics (see 3.5.1)
under all shipboard conditions (see 3.6).
Purifiers shall have the following characteristics:
3.3.1 General.
(a) Manual push-button motor start (control panel characteristic).
(b) Electric motor drive through gears.
(c) Speed indicator or counter for measurement of bowl speed.
3.3.2 Mounts. Unless otherwise specified (see 6.2), purifiers shall be
vertical and hard-mounted on a base plate and provided complete, ready for
mounting directly to the deck of the ship without the use of a pedestal.
3.3,2.1 Resilient mounts. When specified (see 6.2), resilient mounts shall
be in accordance with MIL-M-17508.
7
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