Pneumatic single acting actuators from ELFOR CONTROLS are equipped with scotch yoke mechanisms able to guarantee high torques, high reliability and efficiency. They are engineered and designed to ensure a long life in the toughest environmental conditions and the most demanding applications, provide a high ability to resist corrosion. These types of actuators are used in the automation of quarter turn valves, ball valves, plug and butterfly valves, mainly in the Oil & Gas, Chimical and petrochemical, LNG, water and power.
- Totally enclosed waterproof body in nodular cast iron ENGJS-400-15 IP 67 or carbon steel
- Pneumatic cylinder polished with electroless nickel plated internal in compliance with specifications ASTM-B733 and UNI ISO 4527
- Carbon steel piston with dynamic floating O-Ring seal (PARKER N 674-70) to reduce friction and to extend service life
- ISO 5211Mounting flange
- Position indicator complete with VDI/VDE 3845 NAMUR for mounting accessories
- Power supply instrument air, nitrogen, sweet gas or sour gas (materials pressure group requirements acc. to NACE MR 0173/93)
- Two independent external travel stops for precise angular stroke adjustment `7° in both directions.
- Yoke pin complete with hard grounds sliding bush in the body
- Painting sandblasting to grade SA2.1/2. First coat: epoxy zinc 50 microns Final coat: high build epoxy poliamide 100 microns RAL 9006
- Totally enclosed spring cartridge with additional safety feature in order to avoid injury during disassembly of the spring enclosure.
- Standard operating temperature range: -29 °C / +80 °C