Flow switch for water lines with IP67 / M12 connection

HR2K2

Flow switch for water lines monitors H2O from 15...80 l/min, with DN 32/40/50 internal threads, reed switch output, IP67 protection and brass or stainless steel construction.

Introduction

Secure flow monitoring in water lines should be simple to install and dependable under pressure. The HR2K2 family uses a spring-supported piston with magnetic reed switch actuation to monitor H2O switching ranges from 15...80 l/min, with recommended Qmax. values up to 300 l/min.
 
The robust brass or stainless steel construction suits industrial water applications where stable switching and mechanical durability matter. DN 32, DN 40 and DN 50 internal thread versions cover G 1 1/4 to G 2 connections, while PS 200 pressure resistance and -20...+120 °C media temperature support use in demanding operating conditions.
 
Electrical integration is straightforward through the M12x1, 4-pole round connector. Ingress protection (IP67) supports reliable operation in protected industrial installations, and the switching head can be adjusted lengthwise when the switching value needs to be set on site.

Water flow control
Water flow control
Monitors H2O switching ranges from 15...80 l/min, with Qmax. up to 300 l/min.
Pressure resistant
Pressure resistant
PS 200 pressure resistance supports demanding industrial installations.
Protected connection
Protected connection
IP67 protection with M12x1, 4-pole connection supports robust electrical integration.

Features

Mechanical flow switch

A spring-supported piston moves with the liquid flow and magnetically actuates a reed switch at the set switching point.

Indication options

The family can be configured without mechanical indication, with side measuring indication O1 or with front measuring indication Z1.

Switching value setting

The switching head can be adjusted lengthwise when required and fixed with fastening screws after the switching value is reached.

Threaded connections

Internal thread versions cover DN 32, DN 40 and DN 50 with G 1 1/4, G 1 1/2 and G 2 connection sizes.

Housing materials

Versions are available in brass or stainless steel, with wetted materials specified for each construction.

Installation guidance

A straight inlet and outlet run of 5 x DN is recommended. Filters are recommended for contaminated media.