GEA ECOVENT, Operating Instructions Manual

Page: 126 / 128

Abbreviation Explanation
NC Normally Closed; actuator is spring-to-close, valve is closed in idle position
Nm Unit of measurement of work [newton metre]
SPECIFICATION FOR THE TORQUE: 1 Nm = 0.737 lbft
Pound-Force (lb) + Feet (ft)
NO Normally Open; actuator is spring-to-open, valve is open in idle position
PA Polyamide
PE-LD Low-density polyethylene
PPE Polytetrafluoroethylene
psi Anglo-American unit of measurement for pressure [pound-force per square inch]
All pressure data expressed in [bar/psi] is assumed to be gauge pressure [barg/psig]
unless explicitly specified otherwise.
PTFE Polytetrafluoroethylene
SET-UP Self-learning installation
During commissioning and maintenance, the SET-UP procedure carries out all the
necessary settings for the generation of messages.
AF Indicates the size of spanners [width across flats]
T.VIS Tuchenhagen valve information system
V AC Volt alternating current
V DC Volt direct current
W Unit of measurement of power [Watt]
TIG Welding method
Tungsten inert gas welding
Inch Unit of measurement of length in the Anglo-American language area
Inch OD Tube measurement according to British Standard (BS), outside diameter
Inch IPS American pipe measurement, iron pipe size
126 / 128 - 13.2 List of abbreviations
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