GAS & GEAR SOLUTIONS CO., LTD. > Products > Lerwick

Cathodic Protection Systems
Cathodic protection ( CP ) is a technique used to control the corrosion of steel structure buried either under water or soil ( Electrolyte ). Corrosion of the metal will cease once the applied cathodic protection current equals or exceeds the corrosion current.

Types Cathodic Protection Systems Service Ranges Benefits
  • Galvanic Anode
  • Impressed Current
  • Supply anodes and equipment.
  • System design
  • Installation
  • Commissioning
  • Surveys
  • Turn-key
  • Proven electrochemical technique to stop corrosion
  • Used for over 50 years according to design
  • Used extensively in the oil and gas industry
  • Applied to new or existing structures
  • Extends the useful life of expensive assets
  • Cost effective
  • Minimum maintenance and easy to test

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Splash Zone Systems
The Splash Zone System secured with a bolted system prevents corrosion in harsh marine environments by using a uniquely formulated combination of petrolatum-based marine primer, marine petrolatum tape and protected by HDPE outer cover. It is ideal for the corrosion protection of offshore risers, steel and concrete wharf piles in the splash and tidal zones.

h5SPLASHZONE area corrosion happened

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  • Allow application above and under water
  • Able to displace water (oxygen) from substrate
  • Surface tolerance
  • Fill up pits and surface irregularities
  • Water resistance
  • Resist mircobiological action
  • Good resistance against weather and seawater environment
  • Resist displacement by seawater

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Electro Chlorination Systems
The electrolytic process of electrolyzing seawater type sodium hypochlorite generator is a process of electrochemical reaction. The only raw elements needed is seawater, no additional element is needed. The sodium hypochlorite solution produced from Seawater is very pure. Chlorine produced are generally use as Biofouling control for Cooling Water System in Power Stations, Oil-Rigs,VLCC and many others. StoneChlor-S is designed with full consideration of energy-saving operation, cost saving, high reliability, long service life, easy operation, etc.

PRINCIPE OF CHLORINE ELECTROLYSIS
Using electrolysis principle, chlorine is produced directly from seawater by injecting controlled amount of electricity.

Application Benefits
  • Power plant
  • Oil & gas plant
  • LNG Terminal plant
  • Cooling water
  • Industrial sewage treatment
  • Resist displacement by seawater
  • Small pump station
  • Electrolyzer over 30 years’ service
  • Safety
  • Self-cleaning & Acid washing
  • Full Output Availability
  • Process automation

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