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SOR
mechanical level switches
®
are rugged, industrial products specifically
designed for versatility of application. This catalog
contains application and ordering data for float and
displacer-operated level switches. Switches are
available with flanged or sealed chambers or
as insertion models.
Options available for each type of switch
include: switch type and number, housing type,
chamber material, process connections,
accessories, and more. Units may be
customized to suit customers' needs.
Inside this catalog you will find solutions to
your level sensing puzzles. SOR mechanical
level switches have many configurations
available. If you don't see what you need, we
will engineer a solution for your application.
• Five-year warranty
• ASME Section IX and AWS qualified
welding system
• Designed to ANSI/ASME B31.1 and
B31.3 guidelines
• Hermetically sealed switching
mechanisms available
• Stainless steel switching mechanisms
• High-temperature capability
• Wide variety of explosion-proof housings
• Versatile switching mechanisms which
retro-fit into other manufacturers' units
sorinc.com
Mechanical
Level Switches
Registered Quality System to ISO 9001:2008
200 Series
100 Series
• Worldwide listings and certifications
• Quick worldwide delivery
• Only ASTM grade materials with
certified mill test reports used
• Safety Certified to IEC 61508 (SIL)
SOR products are certified to IEC
61508 for non-redundant use in
SIL1 and SIL2 Safety Instrumented
Systems for most models. For more
details or values applicable to a
specific product, see the Safety
Integrity Level Quick Guide
(Form 1528).
Form 912
700 Series
913-888-2630

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Summarization of Contents

SOR Mechanical Level Switches
Features and Benefits
General advantages and quality aspects of SOR level switches.
Float-Operated Level Switches
Principles and types of float-operated level switches.
Displacer-Operated Level Switches
Principles and types of displacer-operated switches.
How to Order
Model Number System
Structure and explanation of the product model number.
100 Series
Model Series Selection
Choosing the specific 100 Series model based on pressure and gravity.
Chamber Material Selection
Selecting the chamber material for the 100 Series.
Process Connection Selection
Selecting the process connection for the 100 Series.
Trim Material Selection
Selecting the internal trim material for the 100 Series.
Calibration Dimensions
Set point dimensions for 100 Series models based on specific gravity.
200 Series
Model Series Selection
Choosing the specific 200 Series model based on pressure and gravity.
Chamber Material Selection
Selecting the chamber material for the 200 Series.
Process Connection Selection
Selecting the process connection for the 200 Series.
Trim Material Selection
Selecting the internal trim material for the 200 Series.
Calibration Dimensions
Set point dimensions for 200 Series models based on specific gravity.
108/208 Series
Model Series Selection
Choosing the specific 108/208 Series model based on pressure and gravity.
Chamber Material Selection
Selecting the chamber material for the 108/208 Series.
Process Connection Selection
Selecting the process connection for the 108/208 Series.
Trim Material Selection
Selecting the internal trim material for the 108/208 Series.
300 Series
Model Series Selection
Choosing the specific 300 Series model based on pressure and gravity.
Process Connection Material Selection
Selecting the process connection material for the 300 Series.
Process Connection Selection
Selecting the process connection for the 300 Series.
Trim Material Selection
Selecting the internal trim material for the 300 Series.
400 Series
Model Series Selection
Choosing the specific 400 Series model based on pressure and gravity.
Chamber Material Selection
Selecting the chamber material for the 400 Series.
Process Connection Selection
Selecting the process connection for the 400 Series.
Trim Material Selection
Selecting the internal trim material for the 400 Series.
741-743 and 802 Series
Model Series Selection
Choosing the specific 741-743/802 Series model based on pressure and gravity.
Chamber Material Selection
Selecting the chamber material for the 741-743/802 Series.
Process Connection Selection
Selecting the process connection for the 741-743/802 Series.
Trim Material Selection
Selecting the internal trim material for the 741-743/802 Series.
740 and 804 Series
Model Series Selection
Choosing the specific 740/804 Series model based on pressure and gravity.
Chamber Material Selection
Selecting the chamber material for the 740/804 Series.
Process Connection Selection
Selecting the process connection for the 740/804 Series.
Trim Material Selection
Selecting the internal trim material for the 740/804 Series.
700 Series
Model Series Selection
Choosing the specific 700 Series model based on pressure and gravity.
Process Connection Material Selection
Selecting the process connection material for the 700 Series.
Process Connection Selection
Selecting the process connection for the 700 Series.
Trim Material Selection
Choosing the internal trim material for the 700 Series.
730 Series
Model Series Selection
Choosing the specific 730 Series model based on pressure and gravity.
Process Connection Material Selection
Selecting the process connection material for the 730 Series.
Process Connection Selection
Selecting the process connection for the 730 Series.
Trim Material Selection
Choosing the internal trim material for the 730 Series.
750 Series
Model Series Selection
Choosing the specific 750 Series model based on pressure and gravity.
Process Connection Material Selection
Selecting the process connection material for the 750 Series.
Process Connection Selection
Selecting the process connection for the 750 Series.
Trim Material Selection
Choosing the internal trim material for the 750 Series.
Switching Mechanisms
Standard Dry-Contact Switches
Description of open contact switches.
Mini-Hermetically Sealed Switches
Description of sealed switches.
Anti-Vibration Switches
Switches with dual magnets for vibration.
Pneumatic Switch
Switches for applications without electricity.
Extra-High Temperature Switch
Switches designed for extreme temperatures.
Accessories
Accessory Compatibility Chart
Overview of available accessories and their compatibility.
High Temperature Selection
ET Accessory
Straight extension for dry heat applications.
FE Accessories
Finned extension for steam heat applications.
High Temperature Selection Chart
Guide for selecting materials for high temperatures.
Examination and Testing Requirements
Certificate of Conformance
Conformance to ASME/ANSI piping codes.
ANSI/ASME B31.3 Fluid Category
Fluid service classification for B31.3.
Weld Examination
Types of weld examinations performed.
Hydrostatic Testing
Pressure testing procedures for chambers.
ASTM Material Designations
Flange Face Finishes
Standards for flange surface finishes.

Table of Contents