Table of Contents
Advertisement
1. Description ................................................................................................................. 3
2. Installation ................................................................................................................. 3
3. Operation ................................................................................................................... 4
4. Special Conditions for Safe Use ................................................................................. 5
5. Hazardous Location Usage ......................................................................................... 5
6. Servicing and Maintenance ........................................................................................ 5
6.1. Servicing Main Valve Assembly .............................................................................. 6
6.1.1. Accessing the Main Valve Assembly (MVA) ........................................... 6
6.1.2. Accessing the Sensing Assembly (SA) - Dome Top ................................ 7
6.1.3. Figure 1 - Section view of the LF-792 - Domed SA/Unbalanced MVA ... 9
6.2.1. Accessing the Balanced Main Valve Assembly (MVA) .......................... 10
6.2.2. Accessing a Threaded Sensing Assembly (SA) - Threaded ................... 11
6.2.3 Figure 2 - Section view of the LF-792 - Threaded SA/Balanced MVA ... 12
7. Technical Data .......................................................................................................... 13
8. Warranty Statement ................................................................................................ 15
2
TABLE OF CONTENTS
Advertisement
Table of Contents
