Horizontal Flow - Model 24A T/S
Flowrate: 10 MGD (37,800m3/day)

Specifications - Model 24A T/S

1.0 General Specifications

There shall be furnished one (1) one only Grind Hog™ Model 24A T/S Comminutor as manufactured by G.E.T. Industries, Inc. Rotation shall be in a clockwise direction.

1.1 Design Criteria

The comminutor shall be designed to handle the flows indicated below, within the head loss noted.
  • a) hydraulic capacity 10 MGD (37,800m3/day)
  • b) satisfactory operation shall occur under conditions of zero flow
  • c) head loss at peak flow shall not exceed 20 inches (508 mm)
  • d) design shall be such that the flow enters the size reduction and screening device horizontally and exits vertically downward to facilitate the flushing of solids

1.2 Cover Plate

Shall be:
  • a) fitted with 4 position lock down arrangement, and 2 alignment holes for repositioning following service
  • b) located on, and positioned by wall mounted supports allowing for ease of removal for inspection and maintenance.

1.3 Rotating Drum Screen

  • a) heavy-duty Cast Ductile Iron ASTM 536, grade 60-45-18

1.4 Cutting Elements

  • a) replaceable shear bars constructed of high-quality A2 tool-steel shall be attached to the rotating drum. Each shear bar shall be machined from solid bar stock, surface ground to establish exact tolerances
  • b) stationary cutting bar shall be of high-quality 01 tool steel hardened to a minimum of 56 Rockwell C, and shall be reversible, allowing for four (4) sets of cutting edges prior to sharpening or replacement
  • c) all submerged fasteners shall be of stainless steel

1.5 Motor

TEFC 3 Hp. Motor suited to outdoor weatherproof service (IP55) on _____ volt, ____ phase, ____ cycle service. Close-coupled

1.6 Drive Arrangement

  • a) the motor shall be close-coupled to a speed reducer drive, a heavy duty planetary gear of the totally enclosed non-vented type suitable for total submergence during emergencies
  • b) double seals on the output shaft shall ensure flood-proof operation through a reduction ratio of 59:1
  • c) the cycloidal reducer shall be capable of withstanding shock loads to 500% of its mechanical rating of 11.1 Hp. and be warranted for two (2) years
  • d) the drive shall have a minimum full load efficiency of 90% and be pre-lubricated with grease, requiring routine maintenance every 500 to 1,000 hours

1.7 “Toilet Seat” Channel Mounting System

Shall consist of a box style structure fabricated of 304 stainless steel dimensioned to suit the existing channel and supported from above for ease of installation

G.E.T. Industries Inc.