Scope; General - Argus AEF User Manual

PRESSURE
SWITCH
1.0

Scope

Argus manufactures pressure switches (automatic or manual reset) used to make or break an electrical circuit (an
electric motor, a gas engine, etc.) upon sensing either 'high' or 'low' flow line pressure. This manual details the
procedures for installation, operation and maintenance of Argus Pressure Switch Models 'AEF' and 'MBF' which
are certified and marked for "Dual Seal" applications (September 2007).
2.0

General

The Pressure Switch (automatic or manual reset) is designed to make or break an electrical circuit (an electric
motor, a gas engine, etc.) upon sensing either 'high' or 'low' flow line pressure. Installation, operation, and
maintenance of Argus Pressure Switches shall comply with procedures as described in this manual. The Pressure
Switch (automatic or manual reset) is designed for:
•
Rated Maximum Operating Pressure of 5000 PSI (34,475 kPa).
•
Allowable Temperature Ranges:
•
Ambient:
•
Switch Housing:
•
Continuous Process Media:
•
Intermittent Process Media:
Caution: Remove Pressure Switch from process line if Switch Housing temperature exceeds +275 °F during
steaming operations.
2
Figure 1.0: Pressure Switch (Automatic Reset – Model AEF)
Table 1.0: Pressure Switch Parts – Model AEF
Item Description
1 Cap
2 Switch Housing
3 Main Stem
4 Access Collar
5 Bottom Sub
-50 °F (- 46 °C) to +104 °F (+40 °C)
-50 °F (-46 °C) to +275 °F (+135 °C)
-50 °F (-46 °C) to +400 °F (+204 °C)
+675 °F (+357 °C) Max.
Item Description
6 Adjusting Screw, Leaf Spring
7 Spring Adjustment Nut
8 Microswitch
9 Leaf Spring
10 Locking Screw, Switch Block