Masoneilan 171 Series, Instruction Manual, Page: 2 / 12

Table of Contents Page
1. GENERAL INFORMATION ............................................................................................................ 2
2. TRANSPORT, STORAGE AND HANDLING ................................................................................. 2
3. INSTALLATION AND ASSEMBLY INSTRUCTIONS 171 & 172 SERIES
3.1. CROSS-SECTION DRAWING ............................................................................................... 3
3.2. INSTALLATION ...................................................................................................................... 4
3.3. START-UP AND CALIBRATION ............................................................................................ 4
3.4. MAINTENANCE ..................................................................................................................... 5
3.5. 171 & 172 VERSIONS WITH BALANCING SPRING ............................................................. 5
4. INSTALLATION AND ASSEMBLY INSTRUCTIONS – 172-50 DIFFERENTIAL PRESSURE
4.1. CROSS-SECTION DRAWING – 172-50 SINGLE DIAPHRAGM ........................................... 6
4.2. CROSS-SECTION DRAWING – 172-50 DOUBLE DIAPHRAGM CONSTRUCTION ........... 7
4.3. INSTALLATION ...................................................................................................................... 8
4.4. INSTALLATION DIAGRAMS .................................................................................................. 8
4.5. START-UP AND CALIBRATION ............................................................................................ 8
4.6 MAINTENANCE ..................................................................................................................... 8
Caution:
The instructions on the following pages should be thoroughly reviewed and understood prior to installing,
operating, or performing maintenance on this equipment. Throughout the text, safety and/or caution notes will appear
and must be strictly adhered to; otherwise, serious injury or equipment malfunction could result.
Copyright
Masoneilan
®
is a registered trademark of Dresser, Inc. All information contained herein is believed to be accurate at the time of publication and is subject to change without notice.
Copyright 2008 by Dresser, Inc. All rights reserved.
DV-215-171_172 series Inst-v13.indd 4 11/5/08 12:13:37 PM