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Manifolds and Temperature Control Units - Product Guide

Tel. +39 0425 75 88 11

Additional bypass section

Code

Mod.

User connections

Pump connections

11 73 42

DN25

1" F

1"-1/2F

unit

Specifications

Kit consisting of by-pass + two 3-way valves equipped with handle with thermom-

eter-holder with red ring 0°C-120 °C (flow) and blue ring 0°C-120° C (return), re-

spectively. In brass CW617N (CW614N). Yellow brass finish Caps and gaskets not

included

Use

The by-pass section is used by systems that can work with significant flow

variations, i.e. those that largely use thermostatic valves or motorised valves, so

as to ensure recirculation with a flow proportional to the amount of valves which

close, limiting the maximum value of the differential pressure generated by the

circulator.

By-pass setting

To set the by-pass use the diagram above

as a reference.

Figure 1 The reference for the setting scale is

the cover surface /A)

Figure 2 By-pass setting example: pressure

set at 0,2 bar

Flow rate [l/h]

Circulator

characteristic curve

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