entry into the vacuum producer. The lower part of the separator enclosure
shall contain an easily accessible and serviceable debris container. The
container shall lock into operating position to form a positive seal
between the removable container and the separator enclosure, to prevent
leakage of the vacuum system. The debris container shall be removable and
reinstallable without use of tools. The container shall be equipped with
casters to facilitate moving for emptying and reinstallation alignment, and
shall have a pivoting handle to facilitate handling. The separator shall
be equipped with a filter-shaker mechanism actuated by an electric motor
operating through mechanical linkage to the shaker mechanism. An
electrical switch to control the shaker motor shall be on or adjacent to
the separator and shall conform to appropriate electrical code. The
separator shall be equipped with an easily removed, screw- or bolt-fastened
access panel to provide easy access for filter inspection and service.
2.22.3.3
Piping
Pipes shall be of corrosion-resistant material with a smooth internal
surface, and shall not collapse when installed in an evacuation system
evaluated to 27 kPa 8 inch Hg gauge. Plastic pipe shall be
acrylonitrile-butadiene-styrene (ABS) conforming to ASTM D 1527 or
polyvinyl chloride (PVC) conforming to ASTM D 1785. Solvent cement for ABS
plastic pipe fittings shall conform to ASTM D 2235. PVC plastic pipe
fittings shall conform to ASTM D 2466, and solvent cement shall conform to
ASTM D 2564. Fittings, supports, and joint assembly shall be of approved
type. The assembled piping system shall be suitable to support 27 kPa 8
inch Hg vacuum gauge requirement. Fittings shall be of DWV long-radius
type. Coupling, union, and other disconnecting fittings shall be readily
accessible at all times.
2.22.3.4
Vacuum Inlets
User inlets shall be wall-mounted not more than 600 mm 24 inches nor less
than 300 mm 12 inches from inlet center to finished floor top and shall
project no more than 15 mm 1/2 inch from the wall. The inlet shall be of
heavy-duty construction with heavy-gauge stainless steel valve body and
door assembly. The external surfaces shall be a satin finish, with edges
and corners beveled. The cover door shall be self-closing and shall have a
neoprene or similar gasket on its inner surface that will provide a
vacuum-tight seal when closed. The valve shall be sized to 40 mm 1-1/2 inch
ID and shall receive a 40 mm 1-1/2 inch OD commercial hose cuff with
sufficient accuracy of fit to prevent vacuum leakage.
2.22.3.5
Mobile Wet-Pickup Caddy
The wet-pickup caddy shall be a cylindrical tank of 45 L 12 gallon minimum
capacity, mounted horizontally on wheels. The tank shall be constructed of
3.416 mm 10 gauge minimum thickness steel with welded joints. Nominal tank
dimensions shall be 300 mm 12 inch diameter and 675 mm 27 inches long. The
tank shall be designed with convex ends to prevent collapse under vacuum.
A 350 mm 14 inch nominal length axle shall be attached under one end of,
and perpendicular to, the long axis of the tank and shall be equipped with
175 mm 7 inch nominal diameter wheels. The opposite end of the tank shall
have a support leg or caster set under it to stabilize the tank in the
horizontal position while in use, and a push-handle on the top for easy
mobility. The top of the tank shall be equipped with inlet and outlet
ports. The inlet port shall be a swiveling, removable 90-degree elbow,
sized and equipped to receive a 40 mm 1-1/2 inch ID commercial vacuum hose
cuff. The outlet port shall be a fixed 90-degree elbow attached to an
SECTION 15405A
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