Various lines such as cargo, bunker, ballast, fire, and foam lines onboard tankers are required to be pressure tested once in a year to the prescribed pressures.
165. l Marine Insight A hydraulic pump is provided with a flexible hose having an operating lever for compressing the hydraulic fluid, a three-way valve connection, and a pressure gauge. Procedure for Pressure Testing
• Fill
the required line with water • Open the discharge side valves of the pump
• Open the cargo sea chest and take suction
• Start the pump and open the main deck crossover valve
• Let
the water reach the manifold • Keep the manifold valve closed
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