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Midland A-1075 User Manual

Midland A-1075
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P/N: A-1000, Rev. 3.2
Issue Date: April 10, 2018
Supersedes: A-1000, Rev. 3.1
Internal-Style Pressure Relief Valve
A-1000 Series
Installation, Operation & Maintenance (IOM) Manual
Manual content is subject to change.
Visit www.midlandmfg.com for latest manual revision and revision history.
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Midland A-1075 Specifications

General IconGeneral
BrandMidland
ModelA-1075
CategoryControl Unit
LanguageEnglish

Summary

Regulations and Safety Requirements

Regulations

Details regulatory compliance for Midland internal-style pressure relief valves.

Safety Warnings and Precautions

Provides essential safety warnings and precautions for handling and operating the valve.

Introduction to Midland Pressure Relief Valves

Valve Details – Tongue-and-Groove Series

Details components and specifications for the Tongue-and-Groove series valves.

Valve Details – Flat-Face Series

Details components and specifications for the Flat-Face series valves.

Valve Installation Procedures

Installation Procedure and Recommended Tools

Outlines the steps and tools required for proper valve installation on a tank car.

Leak Inspection

Procedure for testing newly installed valves to ensure they are leak-free.

Valve Operation Notes and Precautions

Provides key notes and precautions for operating the valve safely and correctly.

Valve Qualification Process

Valve Disassembly and Recommended Tools

Lists the tools and steps necessary for disassembling the valve for qualification.

Component Inspection Guidelines

Detailed inspection guidelines for critical valve components during qualification.

Valve Reassembly and Recommended Tools

Lists the tools and steps for reassembling the valve after qualification.

Testing Process

Procedure for testing the valve's start-to-discharge and vapor-tight pressures.

Valve-Setting Adjustment Procedure

Step-by-step guide to adjust the valve's pressure settings.

Post-Test Procedure

Steps to follow after valve testing, including sealing and storage.

Routine Maintenance and Repair

Repair Procedure

Procedure for performing repairs on the valve, including recommended tools.

Emergency Response for Leaking Valves

Follow All Routine Maintenance Procedures

Guidance on following routine maintenance procedures for emergency response.

Appendix A: Elastomer Options

O-Rings

Lists commonly used O-ring part numbers and their material options for A-1000 valves.

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