Midland A-22075 Series User Manual

P/N: A-22075/6, Rev. 1.1
Page 2 of 45
Table of Contents
1.0! Introduction .......................................................................................................................... 3!
1.1! Technical Specifications .................................................................................................. 3!
1.2! Valve Perspectives .......................................................................................................... 5!
1.3! Pre-Installation Regulations/Requirements ..................................................................... 8!
2.0! Valve Installation ............................................................................................................... 10!
2.1! Preliminary Considerations ............................................................................................ 10!
2.2! Procedure ...................................................................................................................... 10!
2.3! Leak Inspection ............................................................................................................. 12!
2.4! Valve Operation Notes and Precautions ....................................................................... 12!
3.0! Valve Disassembly ............................................................................................................ 13!
3.1! Procedure ...................................................................................................................... 13!
4.0! Valve Inspection ................................................................................................................ 19!
4.1! Inspection Procedure ..................................................................................................... 20!
5.0! Valve Assembly ................................................................................................................. 28!
6.0! Special Guidelines and Precautions on Pressure-Testing and Adjustment ...................... 29!
7.0! Valve-Pressure Testing Procedure .................................................................................... 30!
7.1! Initial Setup .................................................................................................................... 30!
7.2! Testing ........................................................................................................................... 32!
8.0! Valve-Adjustment Procedure ............................................................................................. 33!
8.1! Valve-Setting Adjustment .............................................................................................. 33!
8.2! Post-Test Procedure ...................................................................................................... 37!
9.0! Maintenance ...................................................................................................................... 39!
9.1! Prior to Maintenance Tasks Performed ......................................................................... 39!
9.2! Leak Repair on a Mounted Valve .................................................................................. 39!
10.0! Warranty .......................................................................................................................... 44!

Midland A-22075 Series Specifications

General

Brand	Midland
Model	A-22075 Series
Category	Control Unit
Language	English