Intrinsically Safe Valve Positioner | Ex ia IIC T4~T6 Gb | HART/Profibus | IP66 | LCD Display & Auto-tuning
This intrinsically safe valve positioner features an Ex ia IIC T4~T6 Gb rating and IP66 protection. It is equipped with LCD display and auto-tuning function for convenient on-site setup. It supports 4-20mA DC input with HART, Profibus PA, or FF bus communication. Built with a magnetic induction contact sensor and integrated encapsulated circuit module, it offers precise valve control algorithms. Its 3-off position function (power-off, air-off, signal-off) eliminates the need for external solenoid valves. Static air consumption is less than 36L/h, making it highly energy-efficient.
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Air-efficient
Using one MVP positioner can help you:
Annual air saved = (0.4 – 0.036) × 24 hours × 365 days = 3200 Nm³
Annual energy saved = 3200 Nm³ × 0.44 kWh = 1408 kWh
(128 kg standard oil, 160 kg standard coal)
Fail-safe hold
The MVP positioner comes with a built-in three-break (power failure, air failure, signal failure) position retention function. It can achieve position retention in the event of power failure, air failure, or signal loss without the need for any external accessories such as solenoid valves or lock-up valves.
Key parameters
| parameter catalog | Value | parameter catalog | Value |
| Explosion-proof rating | Exia IIC T4~T6 Ga |
Steady-state air consumption | <36 L/h |
| Vibration resistance | 15~150Hz / 2g | Feedback output | 4~20 mA DC |
| Ambient temperature | non-intrinsically safe (-40~+80)°C |
Dead band | Adjustable 0.1~10% |
| intrinsically safe T6: (-30~+50)°C T5: (-30~+65)°C T4: (-40~+80)°C |
Linearity | 0.5% FS | |
| Ingress protection | IP66 | Sensitivity | 0.1% FS |
| Ambient humidity | 5~95% RH | Repeatability | 0.2% FS |
| Response time | Line-line: 4ns, Line-ground: <20ns | More Parameters | More Parameters |
FAQ
We are a manufacturer with our own factory and independent R&D team. Our intrinsically safe valve positioners are designed and produced in-house.
Yes, we support customized housing material (aluminum alloy or stainless steel), communication protocol (HART/Profibus/FF), and valve characteristic curves to meet your specific requirements.
The intrinsically safe model features Ex ia IIC T4~T6 Gb certification with IP66 protection. It requires an external safety barrier for power supply.
The static air consumption is less than 36L/h, and the positioning accuracy is up to 0.5% F.S., ensuring energy-efficient and precise operation.
Yes, it features a 3-off position function (power-off, air-off, signal-off) that eliminates the need for external solenoid valves, simplifying system design.
It is widely used in chemical, petroleum, and pharmaceutical industries requiring intrinsically safe control in hazardous gas environments.
