Heavy Duty Double acting
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Catalog excerpts

Heavy Duty Double acting - 1

OMAL S.p.a. Via Ponte Nuovo, 11 - 25050 Rodengo Saiano (BS) ITALY Phone +39 0308900145 - Fax +39 0308900423 Booked in the Enterprise Register of: Brescia number 1661640175 Share capital completely deposited: € 500.000,00 PNEUMAT IC ACT UAT ORS Heavy Duty pneumatic actuators in carbon steel Heavy Duty Double acting featu res featu res and benefits paint specification central bod y – available config u rations torq u e tables components accessori per manovre d i emerg enza spool piece – stem extension mod u lar constu ction d esig n Features Technical Data: Nominal Torque : from 2000 Nm up to 30.000 Nm . Flange according to DIN / ISO 5211 , DIN 3337. Angle of rotation: 90° with stroke adjustment -5° +95°. Air supply pressure: from 3bar up to 8,5bar (for the Torque, see Tabs) For Double Acting version, the torque is directly proportional to the air supply pressure of the actuator For the Spring Return version the “return torque” (no air supply pressure in the actuator) depends only by the Spring and it’s not related to the air supply pressure Available versions: Double Acting, Spring Return Normally Closed (NC) , Spring Return Normally Open (NO). Cetral body versions: Scotch Yoke “Symmetrical” or Scotch Yoke “Canted Working Conditions: Temperature Range: Standard version: from -20° C a up to +80° C (Seals material: NBR) . High Temperature version: from -20° C up to +150° C (Seals material: FKM/Viton). Supply Media: Filtered compressed air, not necessarily lubricated, inert gases, technical gas For temperature lower than 0°C please use dry air In case of lubricate air, please use non detergent oil compatible with the seals. Design regulations Design according to EN 15714-3 , ISO 5211 , ISO 12490 . Be environmentally friendly...please don't print this document unless you really need to.

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FEATURES AND BENEFITS Less friction between piston and cylinder Slots, bushes and pins made i chromed steel with hardness about 200 HB It prevents the bonding of the seal to the cylinder even after long periods of inactivity Reduce the “stick-slip” effect 1 Energized and self-lubricated strips Higher corrosion’s resistance Less friction between stem, guide bar and sliding bushings with consequently less wear on the relevant parts System motion conversion from linear to rotary separated from the piloting fluid of the actuator. Ability to power the actuator with gases It prevents explosive...

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Guarantee of the high level of functional safety. Compliance with European Safety Standards for Pressure Equipment Be environmentally friendly...please don't print this document unless you really need to.

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Paint Specification Omal Standard Paint Specification The Painting of the Heavy Duty Actuqtors (Standard OMAL), mentioned in the Tab, allows th outdoor installation of the actuators; chemical plants, gas pipelines, refineries and Off-Shore applications. On request are available painting cycles according to customer’s specifications SURFACE PREPARATION Primer coat Inorganic zinc primer Iintermediate coat Final coat TOTAL DRY FILM THICKNESS Be environmentally friendly...please don't print this document unless you really need to.

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Central body – available configurations CANTED DESIGN Very high Break to Open Torque, with a huge drop during the final step of the opening operation (ETO). Break to Close Torque much lower than the Break to Open Torque. SYMMETRICAL DESIGN The curve of the Torque is more balanced; the BTO (break to open) – ETO (end to open) –BTC (break to close) – ETC (end to close) values are similar Be environmentally friendly...please don't print this document unless you really need to.

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CANTED SIMMETRICAL A Be environmentally friendly...please don't print this document unless you really need to. 6 / 29

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CANTED SIMMETRICAL ^ Be environmentally friendly...please don't print this document unless you really need to.

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Central body Carbon steel Carbon steel Yoke bushing Alloy steel (chromium plated) Sliding block Vent valve (not shown) Guide block Carbon steel Alloy steel Alloy steel (chromium plated) Carbon steel Carbon steel Cylinder tube Carbon steel (nickel-plated) Be environmentally friendly...please don't print this document unless you really need to.

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Sliding ring Stop setting screw Alloy steel Stop setting screw Alloy steel Be environmentally friendly...please don't print this document unless you really need to.

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