Maintenance of API Safety Valve

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Maintenance_Wartung_API_Sicherheitsventile_Pressure_Relief_Valves

Guidance for the repair or maintenance of LESER API safety valves type 526. This MAINTENANCE TOOLBOX provides comprehensive information, guidance, and instructions you need to meet LESER’s quality standards.

Maintenance Toolbox

Overview Maintenance and Repair [EN]
Standard Tool-Kit Specifications
Specification of the API Tool Kit

Process of Safety Valves to Repair
LESER Repair Traveler

Dismantling instructions for type 526 API
Cleaning repaired valves

Paint touch-up and painting repaired valves
Reworking repaired valves
Refinishing of seats and discs

Online Service: Spare Part Finder
Operating materials and supplies for repaired valves

Spring Data List type 526
Online Service: Pressure Change

Assembly instructions for type 526 API
Torques ranges for screws and bolts
Torque ranges for O-Ring-Disc and bellows fittings

Testing procedures for valve repair shops
Checking for freedom from oil and grease
Marking of Safety Valves after Repair or 3rd party Assembly
Final visual inspection of repaired valves
Function test

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Maintenance of API Safety Valve

Maintenance Toolbox

01 General

02 Documentation

03 Disassembly and cleaning

04 Rework critical parts

05 Spare parts

06 Spring data

07 Assembly and torques

08 Testing and final inspection

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