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Pneumatic valve actuator DYNACTAIR EVO
manualquarter-turnrack-and-pinion

pneumatic valve actuator
pneumatic valve actuator
pneumatic valve actuator
pneumatic valve actuator
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Characteristics

Type
pneumatic, manual
Movement
quarter-turn
Technology
rack-and-pinion, Scotch yoke
Configuration
double-acting, single-acting
Norms
ISO
Other characteristics
ball, for butterfly valves, adjustable, VDI/VDE 3845, with indicator
Torque

4,000 Nm, 8,000 Nm
(2,950.25 ft.lb, 5,900.5 ft.lb)

Pressure

8 bar
(116 psi)

Description

Single-acting pneumatic actuator for mounting on quarter-turn valves with ISO 5211 compliant shaft ends (butterfly valves or ball valves). Actuator flange to ISO 5211. Control pressure up to 8 bar. Force transmission via scotch-yoke kinematics provides output torques of up to 4000 Nm which are ideal for actuating quarter-turn valves. Reset to fail-safe position in case of control air failure is effected by means of spring assemblies. Equipped with a visual position indicator and, depending on the actuator size, adjustable travel stops for closed position or open/closed position as standard. Optional separate or integrated emergency manual override. Suitable for mounting control unit type series AMTROBOX, AMTRONIC U, SMARTRONIC U or any other device with an interface to VDI/VDE 3845. Benefits Actuator for all types of quarter-turn valves (butterfly valves, ball/plug valves) Position indicator and one or several adjustable travel stops Unlike rack-and-pinion kinematics, the actuator’s scotch yoke mechanism delivers peak torque at both valve opening and closure.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.