Midland A-1165 Installation, Operation & Maintenance Manual

Midland A-1165 Installation, Operation & Maintenance Manual

A-1000 series internal-style pressure relief valve

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Internal-Style Pressure Relief Valve
A-1000 Series
Installation, Operation & Maintenance (IOM) Manual
P/N: A-1000, Rev. 3.2
Issue Date: April 10, 2018
Supersedes: A-1000, Rev. 3.1

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Summarization of Contents

Regulations and Safety Requirements
1.1 Regulations
Information regarding DOT, AAR, CTC, and Transport Canada regulations for product handling.
1.2 Safety Warnings and Precautions
Critical warnings for toxic hazards, spring-loaded assemblies, and valve leakage.
Introduction
2.1 Valve Details – Tongue-and-Groove Series
Detailed component breakdown and callouts for the tongue-and-groove valve series.
2.2 Valve Details – Flat-Face Series
Detailed component breakdown and callouts for the flat-face valve series.
Valve Installation
3.1 Installation Procedure and Recommended Tools
Step-by-step instructions and necessary tools for installing new valves.
3.2 Leak Inspection
Procedures for testing newly installed valves for leaks and conformance to specifications.
3.3 Valve Operation Notes and Precautions
Important operational notes and precautions, particularly regarding spring settings.
Valve Qualification
4.1 Valve Disassembly and Recommended Tools
Recommended tools and procedures for disassembling valves for qualification.
4.2 Component Inspection
Thorough inspection of critical components like stem, retainer, body, spring, and guide tube.
4.3 Valve Reassembly and Recommended Tools
Recommended tools and procedures for reassembling the valve after qualification.
4.4 Testing Process
Procedures for performing valve pressure testing, including gauge and stand requirements.
4.5 Valve-Setting Adjustment Procedure
Procedure for adjusting valve settings to meet start-to-discharge and vapor-tight pressure requirements.
Routine Maintenance
5.1 Repair Procedure
Steps for performing basic repairs on the valve, including component replacement.
Emergency Response for Leaking Valve
6.1 Follow All Routine Maintenance Procedures
Guidance on emergency response, emphasizing trained personnel and temporary remediation.
Appendix A Elastomer Options
A.1 O-Rings
List of commonly used O-rings for A-1000 series valves and their part number suffixes.

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