Maintenance training of pilot-operated safety valves - Face-to-face training

Training modules

T01 - Function of safety valves in the plant

• Basics of overpressure protection with safety devices
• Overpressure scenarios, terms and definitions according to codes and standards  
• Practical introduction to the parts on the safety valve 
• Function of spring-loaded and pilot-operated safety valves as well as the supplemantery loading system
• Set pressure and cold differntial test pressure
• Tightness
• Back pressure
• Inlet pressure loss
• Installation and installation position
• Materials
• Regulations, codes and standards
• Basics of safety valve sizing
• General procedure for sizing safety valves 
• Introduction to the sizing program VALVESTAR
• Simple case scenario for sizing, selection and configuration

T02 - LESER Chatroom Demonstration

Demonstration with air  

• Safety valve funtion based on the lift-presure diagram of spring-loaded and pilot-operated safety valves and the supplementary loading system
• Effects of built-up and superimposed backpressure and introduction of product solutions
• Effect of exceeding the 3% inlet pressure loss criteria

Demonstrations with water

• Safety valve function using the spring-loaded safety valve lift-pressure diagram

T05 – Basics of maintenance

• Maintenance intervals 
• Function test in the plant 
• Informationen, instructions and guidance on maintenance  
• Maintenance process
• Workshops and necessary equipment  
• Troubleshooting and fixing
• Web services: Spare part finder, pressure change and certificates

T06 – Maintenance of spring- loaded safety valves

• Disassembly and cleaning of the parts 
• Spare parts ordering including spare parts kits
• Rework disc and seat
• Selection of the correct spring for pressure change   
• Assembly with torque consideration
• Adjustment of the cold differential test pressure
• Various tightness tests according to international standards

T09 – The Company

• The Company - You entry into the world of  LESER
• LESER Kontor Tour
• LESER Museum 1818 
• Chatroom, the demonstration facility
• Product exhibition
• Presentation of the test lab
• Production in Hohenwestedt 

• Presentations
• Hands-On Training
• Live demonstrations