Exam Question
Describe the procedure for overhauling a boiler safety valve and explain using sketches where necessary those parts, which require close attention. Also describe the procedure setting of boiler safety valves.
(16)
Class 2 (2nd Engineer)
MEP
📅 Feb 2026
Reference Answer
### Introduction
A boiler safety valve is a critical safety device designed to protect the boiler from over-pressurization. It is a spring-loaded, non-return type valve that automatically opens when the boiler pressure exceeds a pre-determined safe limit, releasing excess steam to the atmosphere. It must close automatically when the pressure drops to a safe level. Regular overhauling and correct setting are mandated by SOLAS and Class regulations to ensure its reliability and functionality.
### Procedure for Overhauling a Boiler Safety Valve
**1. Preparation and Safety Precautions:**
A boiler safety valve is a critical safety device designed to protect the boiler from over-pressurization. It is a spring-loaded, non-return type valve that automatically opens when the boiler pressure exceeds a pre-determined safe limit, releasing excess steam to the atmosphere. It must close automatically when the pressure drops to a safe level. Regular overhauling and correct setting are mandated by SOLAS and Class regulations to ensure its reliability and functionality.
### Procedure for Overhauling a Boiler Safety Valve
**1. Preparation and Safety Precautions:**
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