46-624 Series 3 Liquid Level Switches ASME B31.1 Construction
Table of Contents
1.0 Introduction
1.1 Principle of Operation ..............................................4
1.2 Operating Cycle ........................................................4
2.0 Installation
2.1 Unpacking ................................................................4
2.2 Critical Alarm Function ............................................5
2.3 Piping .......................................................................5
2.4 Mounting..................................................................5
2.5 Wiring ......................................................................6
3.0 Switch Differential Adjustment
3.1 Low Level Controls ...................................................8
3.2 High Level Controls..................................................9
4.0 Preventive Maintenance
4.1 What To Do — Every 6 Months (minimum) .........10
4.1.1 Switch Corrosion Inspection ........................10
4.1.2 Switch and Wiring Inspection ......................11
4.1.3 Functional Test of Unit ................................12
4.2 What To Do — Every 12 Months (minimum) .......13
4.2.1 Switch Corrosion Inspection ........................13
4.2.2 Switch and Wiring Inspection ......................14
4.2.3 Control Head Removal and Installation .......15
4.2.4 Functional Test of Unit ................................17
4.3 Troubleshooting ......................................................17
4.3.1 Check Switch Mechanism ............................18
4.3.2 Check Sensing Unit......................................18
4.4 What To Avoid........................................................19
5.0 Reference Information
5.1 Agency Approvals....................................................20
5.2 Specifications ..........................................................21
5.2.1 Dimensional Data — Sealed Cage Models....21
5.2.2 Dimensional Specifications — Sealed
Cage Models ................................................22
5.2.3 Dimensional Data — Flanged Cage Models...24
5.2.4 Dimensional Specifications — Flanged
Cage Models ................................................25
5.2.4.1 150# & 300# ANSI Pressure Ratings......25
5.2.4.2 600# & 900# ANSI Pressure Ratings......26
5.2.5 Actuating Levels, Steam Service Ratings
and Specific Gravities ...................................27
5.3 Replacement Parts...................................................28
5.3.1 Sealed Cage Float Models B35, C35, G35,
V35 and Z35 Parts Identification.................28
5.3.2 Sealed Cage Float Models B35, C35, G35,
V35 and Z35 Part Numbers.........................28
5.3.3 Flanged Cage Float Models B3F, G3F, K3F
and Z3F Parts Identification ........................29
5.3.4 Flanged Cage Float Models B3F, G3F, K3F
and Z3F Part Numbers ................................29
5.4 Model Numbers......................................................30
5.4.1 Sealed Cage Models......................................30
5.4.2 Flanged Cage Models ...................................32
Series 3
Liquid Level Switches
ASME B31.1 Construction
