Technical Data - GEM 638 Installation, Operating And Maintenance Instructions

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Technical data

Working medium
Corrosive, inert, gaseous and liquid media which have no
negative impact on the physical and chemical properties of
the body and diaphragm material.
Max. perm. temperature of working medium
(depending on medium, body and diaphragm material)
For the technical data of the AUMA actuator, the control or regulating unit and the linear thrust unit
Diaphragm size
40
65
100
150
All pressures are gauge pressures. Operating pressure values were determined with static operating pressure applied on one side of a closed
valve. Sealing at the valve seat and atmospheric sealing is ensured for the given values.
Information on operating pressures applied on both sides and for high purity media on request.
Kv values determined acc. to DIN EN 60534, inlet pressure 5 bar, Δp 1 bar, valve body material cast iron EN-GJL-250 and flanges EN 1092
length EN 558 series 7 and soft elastomer diaphragm.
The Kv values for other product configurations (e.g. other diaphragm or body materials) may differ. In general, all diaphragms are subject to
the influences of pressure, temperature, the process and their tightening torques. Therefore the Kv values may exceed the tolerance limits of
the standard.
The Kv value curve (Kv value dependent on valve stroke) can vary depending on the diaphragm material and duration of use.
Valve not suitable for vacuum applications
Coordination of actuator types, control and regulating units
Diaphragm size
40
65
100
150
LE 12.1 (50) = AUMA linear thrust unit with 50 mm stroke
LE 25.1 (100) = AUMA linear thrust unit with 100 mm stroke
Our standard motorised actuators are for On/Off duty the Auma AM01.1 and for Regulation duty the Auma AC01.2.
100 °C
please refer to AUMA's own technical data sheet.
Working pressure
DN
25
40
50
65
80
100
125
150
for the various nominal sizes
DN 638 Open / close actuator
25 LE12.1 (50) + SA07.2 + AM01.1
40 LE12.1 (50) + SA07.2 + AM01.1
50 LE12.1 (50) + SA07.2 + AM01.1
65 LE12.1 (50) + SA07.2 + AM01.1
80 LE25.1 (100) + SA07.6 + AM01.1
100 LE25.1 (100) + SA07.6 + AM01.1
125 LE25.1 (100) + SA07.6 + AM01.1
150 LE25.1 (100) + SA07.6 + AM01.1
Other motorised actuators available on request.
Ambient conditions
Ambient temperature
Weight, approx.
[bar]
0 - 7
0 - 7
0 - 6
0 - 3
21 / 36
Kv value
[kg] [m³/h]
39 35
41 38
61 108
62 114
79 284
88 298
131 650
139 680
638 Regulating actuator
LE12.1 (50) + SAR07.2 + AC01.2
LE12.1 (50) + SAR07.2 + AC01.2
LE12.1 (50) + SAR07.2 + AC01.2
LE12.1 (50) + SAR07.2 + AC01.2
LE25.1 (100) + SAR07.6 + AC01.2
LE25.1 (100) + SAR07.6 + AC01.2
LE25.1 (100) + SAR07.6 + AC01.2
LE25.1 (100) + SAR07.6 + AC01.2
max. 50 °C
638