Gotesco Marketing, Inc., a part of Gotesco Group of Companies, supplied, delivered and installed 4 units of FLYGT dewatering pumps N3153.181HT 20Hp for The Magat Hydroelectric Power Plant.
Customer: SN Aboitiz Power-Magat, Inc. (SNAP-Magat)
Location: Ramon, Isabela and Alfonso Lista, Ifugao
Project: Replacement of existing dewatering pumps
Scope of Supply: Submersible dewatering pumps by Flygt (Xylem), 4 units
Scope of Works: Delivery and installation with testing and commissioning
Commissioning: September 2015
Project Description
The Magat Hydroelectric Power Plant is one of the largest hydro facilities in Luzon, with a maximum output of 380 megawatts (MW). It draws water from the Magat river through the multi-purpose Magat dam.
The project included replacement of the vertical turbine pumps used in the 60 feet deep sump pit for dewatering/transfer of clean water to the river.
According to the end user, they we’re having difficult times with their existing vertical turbine pumps due to misalignment (long shaft), dismantling and re-installation takes a lot of time during problems and maintenance and unit is very noisy during operation.
Challenge
Gotesco specialists were supposed to provide a sustainable alternative to the vertical turbine pump type, that would be characterized by serviceability, energy efficiency and low level of noise.
Solution
We replaced their existing pumps and installed 2 units of Flygt in 2012. We also did the same thing in 2015. For three years of Flygt pumps operation the customer was able to evaluate the performance of submersible Flygt pumps in comparison with vertical turbine pumps.
Here are the key features of submersible pump vs vertical turbine pump
– No alignment problems : with a short shaft, time-consuming alignment and realignment problems are eliminated.
– Minimized downtime : sub pumps can be replaced in minutes without the tank having to be emptied.
Using lifting chain, it can be maintained easily by lifting the pump in case of maintenance or clogging.
– Flood-proof : a submersible is by definition flood-proof, so there’s no risk of downtime and damaged equipment due to flooding.
– No noise or heat problems: a submersible operates almost silently, with the liquid in the tank acting as a sound buffer.
– No motor cooling equipment is required, as heat is transferred by the contents of the tank.
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