Masoneilan SVI2-21113111 SVI2-21123121 Smart Digital Valve Positioner with ASCO Solenoid Spool Valves

The Masoneilan SVI II AP (Smart Valve Interface, Advanced Performance) is a 32-bit microprocessor-based digital valve positioner that controls single- or double-acting pneumatic actuators using a two-wire 4-20 mA control signal. It features bi-directional HART communication, non-contact Hall-effect position sensing, modular construction, and local explosion-proof display options. Designed for easy retrofit on Masoneilan or third-party actuators, it delivers high positioning accuracy, fast response, and extensive diagnostics while surviving harsh industrial environments.

• Non-contact magnetic position sensor (no mechanical wear parts) with 0.0015 % resolution
• Two-stage pneumatic amplification for high flow capacity and fast response
• Auto-stop (zero/span) and auto-tune functions for rapid commissioning
• Built-in position transmitter (4-20 mA) and two configurable solid-state switches
• Modular electronics, I/P, and relay for quick field replacement
• Optional external LCD + pushbuttons (explosion-proof)
• Supports eDDL, DTM, ValVue software, and major DCS/asset management systems
• Aluminum (low-copper) or 316L stainless steel housing; positively pressurized electronics compartment
• SIL 2 capable per IEC 61508

Process control valves in oil & gas, refining, chemical, power generation, and general industrial plants. Suitable for both linear and rotary actuators, remote-mount installations up to 90 m, and environments requiring vibration, temperature, and corrosion resistance.

• Masoneilan ValVue software suite
• VECTOR wireless HART adaptor
• 21000 Series control valves
• severe-service and steam-conditioning valves
• High-Flow SVI II AP variant.