AVF234S/AVM234S
6Pages

Catalog excerpts

ADCA LINEAR ELECTRIC ACTUATORS AVF234S and AVM234S DESCRIPTION The AVM234S / AVF234S valve actuators offer automatic adaptation to the stroke of the valve, precision activation and high energy efficiency with minimal operating noise. Ideal for use with any DSH series direct steam injection humidifier and in TDS (Total Dissolved Solids) control systems VCP blowdown valves. In case of power failure/interruption, the AVF234S actuator runs, spring driven, into its respective fail-safe position (thrust rod extended). In modulating duty, the end position seating is made via limit switches. MAIN FEATURES IP 66 protection. Automatic detection of control signal with LED indications. Adjustable characteristic curve (linear, quadratic and equalpercentage) and running time via DIP switch. Automatic adaptation to valve stroke. Manual operation with disengagement of the actuator motor. Mechanical stroke indication. Spring-return feature (AVF234S). Switching input (2-point or 3-point-step control) or analog input (0...10 V or 4...20 mA). OPTIONS AND ACCESSORIES: Split-range unit for adjusting sequences. 230 V AC and 100 V AC power supply modules. Auxiliary change over contacts. Potentiometers, e.g. for 3-point-step in closed loop. Adapters for high temperature conditions. Actuation of V series ADCATrol control valves, or others on request. AVM234S. AVF234S - Fail-safe with spring-return. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice. Produced in accordance with Sound Engineering Practices of the European PED - Pressure Equipment Directive.

Open the catalog to page 1

ADCA TECHNICAL DATA ACTUATOR MODEL Power supply Running time of motor mm/min (mm/s) Running time of spring b) Actuating power Response time for 3-point-step Number of spring returns Actuator stroke Housing material Fire-retardant plastic a) Choose transformer for this value, otherwise malfunctions may occur. b) Return time equates to stroke of 14...40 mm and does not depend on set running time. POSITIONER Control signal 1 Admissible ambient temperature Admissible ambient humidity Temperature of medium c) -10…55 ºC < 95% rh, no condensation Max. 130 ºC (180 ºC or 200 ºC with accessories) c)...

Open the catalog to page 2

ADCA OPTIONS AND ACCESSORIES OPTIONS AND ACCESSORIES Split-range unit for adjusting sequences, fitted in separate junction box Module for 2-point/3-point and analogue activation; additional power 2 VA; 230 V AC ± 15% supply voltage Module for 2-point/3-point and analogue activation; additional power 2 VA; 100 V AC ± 15% supply voltage Aux. change-over contacts 12...250 V ac; Infinitely variable, min. 100 mA and 12 V permissible load 6(2) a) Aux. change-over contacts 12...250 V ac; Gold plated, from 1 mA, to max. 30 V, wider range 3(1) a) Adapter required when the temperature of the medium...

Open the catalog to page 3

ADCA OPTIONS AND ACCESSORIES WIRING DIAGRAMS AVM234S 2-POINT / 3-POINT STEP SWITCHING INPUT WITH 230 V AC POWER SUPPLY a) AUXILIARY CONTACTS AND POTENTIOMETERS b) HIGH TEMPERATURE ADAPTERS c) VALSTEAM ADCA We reserve the right to change the design and material of this product without notice. Produced in accordance with Sound Engineering Practices of the European PED - Pressure Equipment Directive.

Open the catalog to page 4

ADCA OPTIONS AND ACCESSORIES WIRING DIAGRAMS AVM234S AVF234S SPLIT RANGE UNIT d) a) Using accessory type 372332 001. Same connections apply for the 100 V AC modules (type 372332 002). b) Accessories type 372333 001, 372333 002, 372334 001, 372334 002 and 372334 006. c) Accessories type 372336 180 and 372336 240. d) Accessory type 313529 001. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice. Produced in accordance with Sound Engineering Practices of the European PED - Pressure Equipment Directive.

Open the catalog to page 5

ADCA TYPE OF CHARACTERISTIC CURVES MOTOR RUNNING TIME SELECTION GUIDE VALSTEAM ADCA We reserve the right to change the design and material of this product without notice. Produced in accordance with Sound Engineering Practices of the European PED - Pressure Equipment Directive.

Open the catalog to page 6

AVF234S/AVM234S 6Pages

Catalog excerpts

All VALSTEAM ADCA Engineering S.A. catalogs and technical brochures

AVF234S/AVM234S
6Pages