2.
Technical data
Qualification
According to IEEE 382-1996.
Application
For motor operation or manual operation of valves (e.g. gate valves and globe valves) in nuclear power plants for inside and
outside containment in compliance with IEEE 381-1996
Features and functions
Type of duty
Open-close duty:
Short-time duty S2 - 15 min.
Restriction for GSTI 40.1 max. input speed
≤
90 rpm
Direction of rotation
Clockwise rotation at input shaft results in clockwise rotation at output shaft
Stages
Double stage
Input shaft
GSTI 25.1 – GSTI 40.1: For standard reduction ratios, the input shaft is made of stainless steel.
Exception:
GSTI 40.1 22 : 1 and 16 : 1
Standard:
Cylindrical with parallel key according to DIN 6885.1
Output torques
Operation
Motor operation
Directly via electric multi-turn actuator
Flanges for mounting the multi-turn actuator, also refer to separate Technical data sheets.
Manual operation
Directly via handwheel (not qualified)
Valve attachment
Mounting position
Any position
Output drive types
A, B1, B2, B3, B4 according to EN ISO 5210
A, B, E according to DIN 3210
Special output drive: AF
Service conditions
Enclosure protection EN 60529
IP 68-6 dust and water tight up to max. 6 m head of water.
Type-tested with 5.0 bar overpressure (with air) (also refer to page 12)
Corrosion protection
KI, aluminium-free version in combination with multi-turn actuator SAI (Inside Containment)
and in combination with multi-turn actuator SAN (Outside Containment)
Finish coating
Decontaminable
Colour
Standard:
Silver-grey (RAL 7001)
Option:
Other colours are possible on request
Ambient temperature
Standard:
–25 °C to +80 °C,
DBE conditions for a short time up to +185 °C
Lifetime
Open-close duty:
5,000 operating cycles with load profile accroding to KTA 3504-9/88
Further information
Reference documents
Product description Spur gearboxes GSTI 25.1 – GSTI 40.1
Dimensions GSTI 25.1 – GSTI 40.1
Technical data GSTI 25.1 – GSTI 40.1
Technical data SAI/SAN
Drawings indicating centre of gravity GSTI
3)
1) At max. output torque
2) Conversion factor for output torque to input torque
3) Note the permissible actuator weight and the centre of gravity of the actuator-gearbox combination.
For actuators by other manufacturers, please contact AUMA.
4
Multi-turn gearbox GSTI 25.1 – GSTI 40.1 qualified for use in nuclear power plants
(Inside and Outside Containment)
Operation instructions
Type
Output torque
Reduction ratio
Input torque
1)
Factor
2)
max. Nm
Nm
GSTI 25.1
2,000
4 : 1
556
3.6
5.6 : 1
397
5.0
8 : 1
278
7.2
GSTI 30.1
4,000
5.6 : 1
794
5.0
8 : 1
556
7.2
11 : 1
404
9.9
GSTI 35.1
8,000
8 : 1
1,111
7.2
11 : 1
808
9.9
16 : 1
556
14.4
GSTI 40.1
16,000
11 : 1
1,616
9.9
16 : 1
1,111
14.4
22 : 1
808
19.8
Type
GSTI 25.1
GSTI 30.1
GSTI 35.1
GSTI 40.1
Handwheel mm
500
500
500
500
