Multi-turn actuators - Tri-State Technical Sales Corp.

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Valve attachment The actuator is mounted to the valve using a mounting flange standardised according to EN ISO 5210 or DIN 3210. The output drive types are also manufactured according to these standards. They establish the mechanical connection between the output drive of the actuator and the valve stem or the valve shaft. The torque is transmitted from the actuator to the valve using this connection. There are various output drive types for available different valve types. The most common output drive types are illustrated below. [1] [2] [3] [4] [1] Output drive types B1, B2 (EN ISO 5210), or B (DIN 3210) The output drive is integrated into the hollow shaft of the actuator. The torque is transmitted via a parallel key. Low radial loads can be accepted. [2] Output drive types B3 or B4 (EN ISO 5210), or E (3210) The torque is transmitted via a parallel key. By using a plug sleeve, output drive type B1 can easily be converted to output drive types B3 or B4. [3] Output drive type A (EN ISO 5210/DIN 3210) Stem nut for rising and non-rotating valve stems. The mounting flange together with the stem nut and thrust bearings form an assembly, which is suitable for accepting thrust. The unit is screwed to the actuator. Output drive type A cannot accept any radial loads. [4] Output drive type AF (EN ISO 5210/DIN 3210) Spring-loaded stem nut for rising and non-rotating valve stems. The springs compensate for dynamic thrust at high speeds or even for thermal expansion of the valve stem. This unit is screwed to the actuator which contains a hollow shaft with internal teeth. [5] Special output drive types (without illustration) Further output drive types are available besides those described: ■ Pendulum stem nut AK ■ Stem nut with plain bearings AG ■ Hexagon in hollow shaft ■ Insulated output drives IB1 and IB3 For detailed information on special output drive types refer to the separate data sheets and price lists. 24 |
Combinations with valve gearboxes The different valve gearboxes are an essential part of the modular AUMA product range. They can be combined with virtually any AUMA multi-turn actuator. Detailed information on gearboxes can be found in separate brochures and on separate technical data sheets. [1] [2] [3] [4] [5] [1] Multi-turn actuator with spur gearbox GST 10.1 – GST 40.1 ■ Torques up to 16,000 Nm The GST meets the following criteria: ■ Expansion of the torque range of an actuator size. The combination of a small actuator with gearbox is often more cost-effective than a large actuator. ■ Adaptations to special mounting conditions [2] Multi-turn actuator with bevel gearbox GK 10.2 – GK 40.2 ■ Torques up to 16,000 Nm The GK basically has the same functionality as the GST. Furthermore, so-called double-stem solutions can be provided by using two GK gearboxes and an SA actuator. [3] Multi-turn actuator with worm gearbox GS 50 – GS 500 ■ Torques up to 360,000 Nm The GS worm gearboxes convert the multi-turn movement at the output shaft of the multi-turn actuator into a part-turn movement, generally 90°. The combination of a multi-turn actuator and worm gearbox forms a part-turn actuator. Solutions are therefore available for large part-turn valves with high torque requirements. [4] Multi-turn actuator with lever gearbox GF 50.3 – GF 250.3 ■ Torques up to 32,000 Nm These combinations can be used to automate valves which are operated via a lever arrangement. [5] Multi-turn actuator with linear thrust unit LE 12.1 – LE 200.1 ■ Thrusts up to 217 kN ■ Strokes up to 500 mm The linear thrust unit converts the rotary movement of the actuator output shaft into a linear movement. The combination of a multi-turn actuator and linear thrust unit forms a linear actuator. | 25
Page 1 and 2: Multi-turn actuators for open-close
Page 3 and 4: Table of contents Applications/duty
Page 5 and 6: Modulating duty The most distinctiv
Page 7 and 8: [1] [2] [1] Multi-turn actuators SA
Page 9 and 10: Summary of applications, functions,
Page 11 and 12: Corrosion protection/colour Standar
Page 13 and 14: Manual operation Electric actuators
Page 15 and 16: Overload protection of the valve Th
Page 17 and 18: Anti-backdrive device By using an L
Page 19 and 20: Feedback signals Feedback Valve end
Page 21 and 22: Integral controls The integral cont
Page 23: Electrical connection for explosion
Page 27 and 28: Supply voltages/mains frequencies T
Page 29 and 30: Certificates EU directives Declarat
Page 31 and 32: The actuator specialist At AUMA, ev
Page 33 and 34: Index A Ambient temperatures 10 AUM
Page 35 and 36: America AUMA ACTUATORS INC. US-PA 1

Multi-turn actuators - Tri-State Technical Sales Corp.

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