IMI STI FasTrak FT I00ASSA Valve Positioner for Thermal Power Plants Petrochemical Engineering Operation

The FT-I00ASSA is part of the FasTrak series from IMI STI (Italy), a high-capacity, high-precision digital-pneumatic valve controller designed to replace traditional analog positioners. Engineered for demanding industrial applications, it delivers exceptional dynamic performance with ultra-high flow capacity (Cv = 2), fast response times, and precise control. Configuration and calibration are simple via HART protocol or built-in self-calibration, making it compatible with both single-acting and double-acting actuators (diaphragm, piston, or spring-return types). Built to withstand harsh environments, the FT-I00ASSA ensures reliable, high-performance valve positioning in process automation systems.

• Ultra-high flow capacity with Cv = 2 for rapid actuator stroking and precise control
• Excellent dynamic response and stability for demanding control loops
• HART communication protocol for configuration, diagnostics, and advanced monitoring
• Built-in self-calibration for quick and accurate setup without external tools
• Compatible with single-acting and double-acting actuators (spring-return, piston, or diaphragm)
• Low air consumption and high energy efficiency
• Rugged aluminum housing with IP66 protection rating
• Wide configurable options including split-range input and position feedback (4-20 mA)
• Embedded digital inputs/outputs for limit switches, trips, and alarms
• Proven Italian engineering for long-term reliability in critical processes

• Input Signal: 4-20 mA with HART protocol (configurable split range)
• Supply Pressure: 2.5 to 10 bar (commonly 1.4–7 bar in applications)
• Air Consumption: 1.5 Nm³/h at 6 bar (Cv=2 version)
• Flow Capacity: Cv = 2 (high-flow model)
• Hysteresis + Deadband: ±0.15%
• Repeatability: ±0.15%
• Linearity: ±0.3%
• Sensitivity: ±0.1%
• Operating Temperature: -40°C to +80°C (extended -55°C to +80°C for certain certifications)
• Power Supply: 2-wire from signal loop (min 3.5 mA, 12–30 Vdc for Ex ia / 19–24 Vdc for Ex d)
• Pneumatic Connections: 1/2" NPTF
• Electrical Connections: 1/2" NPT (or M20*1.5 on request)
• Protection: IP66 / NEMA 4X
• Hazardous Area Approvals: Ex ia / Ex d options available
• Material: Aluminum body (other options on request)

The FT-I00ASSA is ideal for industries requiring fast, accurate, and reliable valve control in harsh or high-flow conditions, including:

• Oil & Gas (upstream, midstream, refining)
• Petrochemical and Chemical processing
• Power generation (conventional and combined cycle plants)
• Water & Wastewater treatment
• Pulp & Paper
• Heavy industrial automation where quick stroking and tight control are essential

It excels in applications with large actuators or high-volume pneumatic demands that exceed standard positioner capabilities.

Q: What makes the FT-I00ASSA different from a conventional positioner? A: It offers significantly higher flow (Cv=2), faster response, self-calibration, and HART-enabled diagnostics—replacing older models with superior performance and lower air usage.

Q: Is it compatible with both single- and double-acting actuators? A: Yes, fully compatible with single-acting (spring-return) and double-acting actuators, including diaphragm, piston, and rotary types.

Q: How is calibration performed? A: Via HART communicator/device or the built-in self-calibration function—no manual adjustments needed in most cases.

Q: What is the typical operating temperature range? A: -40°C to +80°C standard, with extended low-temperature versions available.

Q: Does it support hazardous area installations? A: Yes, available in Ex ia (intrinsically safe) and Ex d (flameproof) configurations.

For inquiries, quotations, technical support, or ordering the FT-I00ASSA, please reach out: WeChat / WhatsApp / Phone: +86 13472860702

We're ready to assist with product selection, customization, and fast delivery.

• IMI STI FasTrak series (other models: lower-flow Cv=0.3 versions)
• IMI STI Smart Valve Controllers (additional HART/Fieldbus options)
• IMI STI Pneumatic Actuators (linear and rotary for direct pairing)
• IMI STI Quick Exhaust Valves and Volume Boosters
• Compatible mounting kits and pressure gauge manifolds