General Overview:
Pneumatic actuators made of stainless steel are designed for highly corrosive environments and are silicon-free. They operate between -32ºC and 90ºC, suitable for marine and underwater applications. These actuators can be powered by air or non-aggressive fluids up to 8 bar, with an option for up to 15 bar. Available in single and double-acting models, they provide torques up to 470 Nm at 6 bar.
Specifications:The actuators comply with ISO-5211, DIN-3337, VDE-3845, and NAMUR norms. They meet PED Directive 97-23-EC, ATEX Directive 94-9-EC, and SIL-2 requirements. They can be equipped with
limit switches,
solenoid valves, positioners, and manual overrides. Various couplings are available for different valves.
Applications:
These actuators are used in petrochemical, pharmaceutical, food, sanitary, dairy industries, offshore plants, and shipyards.
Models and Performance:
Models such as PI00, PI10, PI20, and PI30 are detailed, each with specific features and performance metrics. The PI00 model offers double and single-acting options with specific torque values at different pressures. Cycle time and consumption calculations are provided, emphasizing real working pressure for performance.
Materials and Construction:
Constructed with high-quality materials like AISI-316 stainless steel for screws and caps, CF8M stainless steel for cylinders, and polyamide for washers and indicators. Detailed disassembly instructions and material specifications are included.
Torque and Pressure Data:
Tables illustrate torque values for double-acting and spring return models at various pressures, crucial for understanding performance capabilities under different conditions.
Additional Features:
Customizable with options like preloaded spring sets and different shaft materials. Covered by cataphoresis for enhanced durability.
Specifications:
Key materials include N.B.R. for O-rings, stainless steel (AISI-316 and CF8M) for shafts, and aluminum alloy for gears. Some components are coated by cataphoresis or ball burnishing for durability.
Procedures:
Instructions for calculating cycle time and consumption based on working pressure are provided. Tables for double acting and spring return torques at various pressures are included.
Standards and Certifications:
Complies with ISO-TS-29001, ISO-9001-2000, IEC-61508 SIL-2, and European Directives like ATEX and PED, ensuring quality management and product safety.
Recommendations:
Consult torque charts for variable quantities of springs and adhere to specified pressures for optimal performance.
Key Data from Tables:
Tables provide detailed torque values for double acting and spring return actuators at different pressures, highlighting initial and final torque values and the number of springs required per side for different configurations.