Foxboro SRD998 Smart Positioner

SRD998 Smart Valve Positioner

The Foxboro SRD998 is a digital, electro-pneumatic valve positioner engineered for high-precision control, modular customization, and advanced diagnostics across demanding industrial applications. Built to operate on both linear and rotary pneumatic actuators, it seamlessly integrates with modern DCS environments through HART communication.

Ideal for:

• Oil and Gas
• Chemical
• Power Generation
• Pulp and Paper
• Pharmaceutical
• Water/ Wastewater

Features:

• Electro-pneumatic flapper-nozzle
• Compatible with linear and rotary actuators
• Supports single and double-acting actuators
• Travel range of 8 to 260 mm or up to 120°
• Auto start and tuning
• Configurable fail-safes
• Partial stroke testing
• Built in diagnostics
• Real-time alerts
• FDT/DTM compatible
• HART 7 communications
• 3 inch backlit LCD screen
• Turn and push rotary knob
• Full text display
• Electronics and pneumatics separated
• Modular I/P converter
• Dual air filtration
• Easily replaceable parts
• Explosion-proof
• Intrinsically safe
• IP66/NEMA 4X
• –40 °C to +85 °C
• Aluminum housing

Optional Features:

• Stainless steel housing
• Analog position feedback
• Mechanical or proximity limit switches
• Booster relays
• Remote mounting kits

Document Downloads:

• SRD998-Data Sheet
• SRD998-User Guide
• SRD998-Instructions
• SRD998-Spec Sheet