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General| Brand | Midland |
|---|---|
| Model | A-520 Series |
| Category | Control Unit |
| Language | English |
Details regulatory compliance for valve operation, including DOT and AAR standards.
Provides crucial safety warnings and precautions for handling hazardous materials and valve operations.
Lists components and part numbers for various A-520, A-522, and A-522A valve models.
Explains steam-jacket configurations for A-522 models, noting A-522A does not have this feature.
Step-by-step guide for installing the valve, including necessary tools and equipment.
Details the process for inspecting newly installed valves for leaks to ensure proper sealing.
Provides guidance on proper valve operation and outlines important precautions to follow.
Instructions for safely disassembling the valve and a list of required tools for the process.
Procedures for inspecting key valve components like the body, ball, and stem for defects.
Addresses unique conditions and responsibilities during inspection and evaluation.
Outlines the necessary requirements and conditions for valve assembly and testing.
Detailed steps for reassembling and testing the valve after qualification.
Describes the simple maintenance procedure for checking the valve for leaks in the field.
