Equipment:
Rack and pinion pneumatic actuators
Available in double-acting (DA) and spring return (SR) versions
Rotation configurations: 0°–90° (Series 82 and 84) and 0°–180° (Series 83
Suitable for industrial applications, ball valves, and butterfly valves
Designed for high reliability, performance, and durability thanks to Valbia’s patented design
Manufacturer:
Valbia, Italy
Range:
• Series 82: extruded aluminum body, 0°–90° rotation, 15 models, DA and 14 models SR
• Series 83: extruded aluminum body, 0°–180° rotation, 9 models, DA only
• Series 84: stainless steel body, caps, and pinion (A351 CF8M), 0°–90° rotation, 5 models DA or SR
Materials and treatments:
• Extruded aluminum body with 45–50 μm hard anodizing (standard)
• Options: nickel plating or PTFE coating for highly corrosive environments
Internal Features:
• FKM Viton® seals (optional)
• Concentric springs for SR versions, painted and corrosion-resistant, adjustable according to pressure
• Pinion compliant with NAMUR standard
• Stroke adjustment via cams and screws on caps (Series 83)
Operating Temperatures:
• Standard version: suitable for general industrial conditions
• Series 84: high temperature up to 150°C; low temperature down to –40°C
Value Added:
• Anodized body with high corrosion resistance
• PTFE coating option for chemical environments or aggressive washing
• Die-cast aluminum caps with polyester paint (standard), nickel plating, or PTFE on request
Safety and Durability:
• Anti-blowout piston system for increased safety
• Long screws for safe spring removal in SR versions
Options and Accessories:
• NAMUR solenoid valves
• Mechanical or magnetic limit switches
• 4–20 mA electro-pneumatic positioners
• Position indicators (switch boxes)
Housing Materials:
• Anodized aluminum (Series 82 and 83)
• A351 CF8M stainless steel (Series 84) for heavy-duty and corrosive applications
Certifications:
• CE
• ATEX (II 2GD T6…T3)
• SIL (IEC EN 61508 SIL3)
• ISO 9001, ISO 14001, ISO 50001, OHSAS 18001
• DNV-GL
Please contact us for additional information or your enquiries.

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