Positioners and Actuators
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Catalog excerpts

PETROSYSTEM Srl Via Gaspare Spontini, 29/4 - 00043 Ciampino (Roma) – Italy Tel:+39 06 7932.1621 Fax:+39 06 7932.1160 Email: [email protected] Web: www.petrosystem.it ACTUATORS Series RM, RMP DM, DMP LD, LDP 1] Diaphragm Type Spring Return Actuators [Linear & Rotary applications]: The Versatile and Simple, Low operating Air Pressure requirements and high level of reliability make these actuators most popular amongst users. Options available: Field Reversibility, Double Acting, Manual Override [Top mounted as well as Side mounted], Standard Yoke, Pillar type, Tandum Actuators. 2] High Power Linear Piston Cylinder [Single & Double Acting]: For applications where high power thrust is essential, this actuator offer better solution. Options: Manual Override.

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PETROSYSTEM Srl Via Gaspare Spontini, 29/4 - 00043 Ciampino (Roma) – Italy Tel:+39 06 7932.1621 Fax:+39 06 7932.1160 Email: [email protected] Web: www.petrosystem.it PNEUMATIC ACCESSORIES A] Pneumatic Valve Positioner: 1] Single Acting: DVP-DA, SP-45 2] Double Acting: SP-45 B] Air Look: It entraps the air pressure within the actuator and maintains the status co-position of the valve controlling elements. When supply air pressure starts declining beyond set point . C] Volume Booster: It just speeds up the operating time of valve as per requirement.

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