High Volume Dewatering Pump

Pumps must have a solid construction, operate safely and easily, yet be compact and lightweight. Now, you'll have to top each of these attributes.

Features Application
1. Enclosed high chrome cast iron impeller with field adjustable/replaceable wear plate provides for high wear resistance when the pumpage contains abrasive particles. 1. Commercial, industrial wastewater and site drainage
2. Highly efficient, continuous duty air filled, copper wound motor with class F or E insulation minimizes the cost of operation. The motor is equipped with a water cooling jacket allowing for low water level operation for extended periods of time. 2. Sand & Gravel pit drainage.
3. Built in thermal protection prevents motor failure due to overloading, accidental run-dry and single phasing in three phase units. 3. Fly Ash water return.
4. Double inside mechanical seals with silicon carbide faces, (both top and bottom) running in an oil filled chamber, further protected by a labyrinth seal, running against a replaceable, 420 stainless steel shaft sleeve and seal pressure relief ports, providing for most durable seal design available. 4. Raw water supply from lakes or rivers.
5. Double shielded, permanently lubricated, high temperature C3 ball bearings rated for a B-10 life of 60,000 hours provide for extended operation life.  
GSZ Pump

Performance Curves
Specifications Standard Options
Discharge Size 6", 8", 10" Npt (50, 200 and 250 mm) Available in all Stainless Steel
Horsepower Range 30 Hp. - 100 Hp (22Kw - 75 Kw)
Performance Range
  Capacity 350-3500 Gpm (1.33 - 13.3 cubic metre/ min)
Head 175 Ft. - 12Ft. (53.34m - 3.65m)
Maximum Water Temperature 104F. (40C)
Materials of Construction
  Casing Cast Iron
Impeller High Chrome Iron / Stainless Steel
Shaft 420 Stainless Steel
Motor Frame Cast Iron / Steel Jacket
Fastners 304 Stainless Steel
Mechanical Seal
  Upper Seal Silicon Carbide / Silicon Carbide
Lower Seal Silicon Carbide / Silicon Carbide
Elastomers NBR (Nitril Buna Rubber)
Impeller Type Enclosed, solids handling
Solid Handling Capability 1" (0.4" on the GSZ2-37-4H)
Motor Nomenclature
  Type, Speed, Hz Air Filled, 1800 Rpm, 60 Hz
Voltage, Phase 208/230/460/575 V.., 3 Phase
Insulation Class F (50 Hp.), E (60-100 Hp.)
Bearings Pre-lubricated, Double Shielded
Accessories Submersible Power Cable 49' (15 m) Length as Required
Operational Mode Manual