DESCRIPTION

Technical Description

The trainer was designed for heating and plumbing trainees.

A three-way mixing valve in a heating system controls the circulation and feed flow temperature of the water flowing in the heating system. A pump circulates the water in the pipe system. The differential pressure across the pipe system is limited using a relief valve. Bimetallic thermometers indicate the temperatures at all relevant points in the heating circuit.

Learning Objectives / Experiments

- function and operating behaviour of a three-way mixing valve
- effect of mixing ratio on feed flow or circulating flow temperature
- effect of mixer setting on the flow rate
In conjunction with other training panels in the HL 100 series, it is possible to set up a complete heating system.