Glossary; Symbols; Terms - Siemens Acvatix SAX Series Basic Documentation

DIL switches
DN
Forced control
HEX switches
kPa
k
vs
LED
PN
Position feedback
Spring return facility
Δp Δp
max / maxV
Δp
s
Siemens
Building Technologies
8

Glossary

8.1

Symbols

Caution, general danger – read the notes!
Caution, hot surface – read the notes!
Condition as supplied to costumer
Crosstip screwdriver (Pozidriv)
Slotted screwdriver
Screw wrench
Allen key
8.2

Terms

A DIL switch shows the switching choices in the form of a place value system (dual
in line) in relation to basis 2 (on and off).
Nominal size: Characteristic for matching parts of the piping system.
Forced control serves for overriding automatic mode and is implemented in the
structure.
A HEX switch shows the switching choices in the form of a place value system
(hexadecimal system) in relation to basis 16 (0...9 and A...F).
Unit of pressure: 100 kPa = 1 bar = 10 mWS.
Nominal flow rate: Nominal flow rate of cold water (5...30 °C) through the fully
open valve (H ) at a differential pressure of 100 kPa (1 bar).
100
Light emitting diode.
PN class: Characteristic relating to the combination of mechanical und dimensional
properties of a component in the piping system.
Signal used to acquire the position, fed back via an input.
Refer "fail safe function".
Maximum permissible differential pressure across the valve's control path, valid for
the entire actuating range of the motorized valve (V = diverting mode).
Maximum permissible differential pressure at which the motorized valve will close
securely against the pressure (close off pressure).
Actuators SAX.., SAL.. for valves
Glossary
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CE1P4040en
22.12.2010