Level switch for liquid control up to 120 °C - side installation

SIMPLE B77

Level switch for lateral liquid control with 1 or 2 SPDT microswitches, adjustable float rod and DN 25 process connection. It supports 10 bar pressure, 120 °C process temperature and IP65 electrical housing.

Introduction

Side-mounted liquid level control is often the practical choice when tank access or space is limited. This compact level switch is designed for lateral installation and offers simple mounting for applications that require reliable liquid switching up to 120 °C.
 
The adjustable rod supporting the float allows the switch point to be matched to the tank and required level. Depending on the configuration, the switch can be supplied with one or two SPDT microswitches, with separately wired independent contacts for clear switching control.
 
Process compatibility is supported by brass or AISI-316 executions, a B77 SPANSIL float and AISI-303 rod. With 10 bar maximum working pressure, IP65 protection and operating ambient temperature from -30 /+55 °C at 90% RH, it is suited to industrial liquid level applications where a reduced-size lateral switch is needed.

Side-mounting design
Side-mounting design
Reduced dimensions support lateral installation in liquid level applications.
Adjustable switching
Adjustable switching
Float rod offers 3 positions to match the tank and switch point.
Dual contact option
Dual contact option
1 or 2 SPDT microswitches support independent switching signals.
120 °C process use
120 °C process use
Handles liquids up to 120 °C and working pressure up to 10 bar.

Features

Rod types

 Type C and Type D rod versions define different switch point positions relative to the mechanical axis of the instrument.

Electrical contacts

The switch uses SPDT microswitch contacts rated for 250V AC, 48V DC and 3A. L1 provides one microswitch and L2 provides two.

Electrical output

The IP65 housing is made from PA6 with glass fiber and includes 6 terminals with a polyamide PG9 cable gland.

Process connection

The level switch uses a DN 25 process connection with Ø 1" male thread and Parallel UNI 228/1 thread type.

Float and rod materials

 The float is B77 SPANSIL - Butadiene Acrylonitrile Copolymer with S.G. 0,4. The supporting rod is AISI-303.

Installation guidance

 The float can be placed in 3 positions. A PTFE sealing gasket must be inserted between the level control and the tank.