Driven by dry, filtered compressed air
Min/ max air pressure: 2bar/ 8bar
Min/ max working temperature: -20C to 90C
Air to open, air to close (double acting) or spring to close (spring return)
Sizing
Torque output dependant upon air supply pressure or quantity of springs.
Allow a safety factor when sizing.
Valve torque increases when idle for long periods.
Valve torque increases in dry duty applications.
Description
PRISMA pneumatic actuator with rilsan and epoxy coated aluminum housing, rack and pinion design. External stroke adjustment. Driven by compressed air with air to open, air to close, double acting function or spring to close, single acting function. Conforms to ISO5211 for mounting of valves, and Namur plus VDI-VDE3845 for mounting of solenoid valves, limit switch boxes and positioners. CE marked. ATEX Zone I and II certified, SIL 2 and 3 rated. Buy PRISMA actuators and actuated valves online at AVS.
Problem Solving Compact Industrial Electric Actuators
Failsafe electric actuators divide engineers and specifiers as the more popular system over the
last 15 years of a trickle charged industrial battery back-up system, is falling out of favour due
to the security issues around transporting battery operated systems by air. Mechanical failsafe
actuators using springs are an expensive and heavy alternative. The AVA failsafe actuator
employs internal capacitors to store the energy needed to create the failsafe movement, these
simple electronic components are light, are free of security issues, and very cost effective.
Problem solved.
5 J+J B35 on-off electric valve actuators have been dispatched. Pre-assembled with brass ball valves, they were shipped from stock today to one of our European customers.
