ACTAIR NG
28Pages

Pneumatic Actuator Type Series Booklet

Legal information/Copyright Type Series Booklet ACTAIR NG All rights reserved. The contents provided herein must neither be distributed, copied, reproduced, edited or processed for any other purpose, nor otherwise transmitted, published or made available to a third party without the manufacturer's express written consent. Subject to technical modification without prior notice. © KSB S.A.S, Gennevilliers (Paris), France 10/07/2020

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Operating data Operating properties Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators ACTAIR NG Main applications ■ Water ■ Waste water ■ Energy ■ Industry ■ Shipbuilding ■ Oil and gas Design details Design ■ Double-acting pneumatic actuators of the ACTAIR NG type series are designed for actuating all types of quarter-turn valves (butterfly valves, ball valves). In conjunction with an AMTROBOX/AMTRONIC/SMARTRONIC control unit, they offer all the control and monitoring functions required by process control...

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators ■ Unlike rack-and-pinion kinematics, the actuator's scotch-yoke kinematics develops maximum torque at both valve opening and closure. - Reduced dimensions and actuating time - Reduced weight - Reduced control air consumption - Higher durability of piston seal rings - Versions with integral manual override - Actuator designed to require no lubricants, for long service life Product information Product information as per Regulation No. 1907/2006 (REACH) For information as per chemicals Regulation (EC) No. 1907/2006 (REACH), see...

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Technical data Function The scotch-yoke kinematics develop a variable torque that is ideally suited for actuating quarter-turn valves. Open Port 2 communicates with both the left-hand and the righthand cylinder chamber. When control air is supplied to port 2, the shaft of the double-acting pneumatic actuator rotates in anti-clockwise direction, causing the valve to open. Closed Port 4 communicates with the intermediate chamber. When control pressure is supplied, the shaft of the double-acting pneumatic actuator rotates in...

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Type series

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Output torques (in Nm) The output torque generated by the actuator depends on the control fluid pressure. The following tables specify the torques that can be achieved depending on the control pressure applied (8 bar on request). Force transmission: scotch yoke 1 Max. permissible output torqueACTAIR NG

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators A cycle corresponds to one opening/closing process of the valve.

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Materials Materials ACTAIR NG 2 - 160

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Fig. 2: Exploded view of size 240

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Fig. 3: Exploded view of size 340

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Fig. 4: Exploded view of size 500

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Fig. 5: Exploded view of size 700

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators 14 Parts are included in the spare parts kit. 15 Low-temperature version (-50 °C to +120 °C): O-ring = fluorosilicone (FVMQ) 16 High-temperature version (-20 °C to +150 °C): O-Ring = FKM (FVMQ)ACTAIR NG 19

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Variants Open/closed position signalling function AMTROBOX and all limit switch boxes with a VDI/VDE interface This limit switch box provides open/closed position signalling via electrical microswitches or inductive proximity sensors (1 for Open and 1 for Closed, 1 for one intermediate position on request).

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Control function Control by AMTRONIC positioner Positioner functions: ■ Control air supply via a monostable or bistable 4/2 or 4/3 directional control valve, power supply: alternating or direct current ■ Setting of actuating times Options ■ Open/closed position signalling (2 microswitches or inductive proximity sensors) ■ Proportional position signalling via 4-20 mA signal ■ Field bus AS-i, Profibus DP

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators The design of this manual override is based on the ACTAIR NG pneumatic actuator. The integral manual override comprises a steel handwheel for manual actuation in emergencies. This eliminates the need for a separate manual override to be mounted on the actuator, resulting in a compact, light-weight product. The actuator can be locked in open or closed position. It is irreversible. Like RMD manual gearboxes, the manual override must not be operated unless the control air has been completely evacuated from the actuator.

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Declutchable manual override A manual override via declutchable manual gearbox with handwheel can be mounted between the valve and the actuator. It overrides the pneumatic actuator and can be used in either clutched (engaged) or declutched (disengaged) position. A worm reduction gearbox is used. Contact KSB. The manual override must not be operated unless ▪ the control air has been completely evacuated from the actuator and ▪ all pressure has been released from the actuator's internal chambers Do not declutch the manual...

Pneumatic Actuators Double-acting Pneumatic Quarter-turn Actuators Mounting onto the valve The actuator can be mounted onto the valve in 4 different positions, offset by 90°. Unless otherwise specified, the actuator is mounted onto the valve according to mounting option N, position 1. Mounting option N Mounting option M Flow direction of fluid handled - Valve shown in closed position Interface A: pneumatic connection Every ACTAIR NG pneumatic actuator size is available in two non-interchangeable versions: - Version for mounting option N - Version for mounting option M Dimensions and weights...