GH Series - High Head - 50Hz

FEATURES

• Discharge is designed to locate in the center of pump top as well as it's slime configuration, which makes easy to install in the pipe (except GH-311)

• An epoch-making SiC (Silicon Carbide) mechanical seal doubles the pump life

• Built in motor protector prevents the motor from burn-out

APPLICATIONS

• Deep well pre-dewatering

• Tunnel and dam construction sites

• Coffer-dams, casissons

• Mining and quarries

• Removal of large volume of water in hard-to-reach areas

• Medium-Duty Drainage Pumps
• Remarkably increased maximum submersible depth by a high pressue-endurance mechanical seal.
• Efficient motor cooling by a one-way channel; Space economy by a top outlet.

WELL-POINT DEWATERING - The WP-150L
is suitable for lowering of Ground Water Control, for Open Excavation in high permeable and especially in Non-Cohesive Soil from Sandy to fine clayey silt. Open Excavation, without proper dewatering, results in massive slope failure and damages, due to seepage flow-line appearing along the surface of the slope. Fine clayey silts, with a high natural water content, close to liquid limit, may pose a great danger from sudden collapse, boiling, and uplift from the bottom of excavation. At their natural water content, they have properties of softness and weakness.

These situations can be effectively pre-drained by Swift-Flow Dewatering Pump. In the early period of pumping, huge discharge flow is encountered, as water is rapidly released from storage, thus creating apparent cohesion, resulting in increase effective stress.

Gravity drainage is no effective, acceleration of water movement by the application of vacuum in well-point dewatering is advisable. When unstable, the soil material can act as liquid with high specific gravity, lateral loading on sheet-piling can be large, and bracing failure will occur.

The results achieved, by effective well-point dewatering of these material can be quite remarkable, without which even heavily braced sheet piling could not control. After dewatering, with reduced water contents, open cuts is possible with slope 1:1 or steeper.