Explosion Proof Valve Positioner with LCD Display & Auto-tuning | Ex db IIC T4~T6 Gb, HART/Profibus, IP66
This explosion-proof valve positioner features an Ex db IIC T4~T6 Gb rating and IP66 protection. It comes with LCD display and auto-tuning function for convenient on-site configuration. 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 delivers precise valve control algorithms. The 3-off position function (power-off, air-off, signal-off) eliminates the need for external solenoid valves. With static air consumption below 36L/h, it ensures energy-efficient operation in harsh environments.
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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 | Ex db IIC T4~T6 Gb |
Feedback output | 4~20 mA DC |
| Vibration resistance | 15~150Hz / 2g | Dead band | Adjustable 0.1~10% |
| Ambient temperature | T6: (-30~+65)°C T5: (-30~+70)°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 |
| Steady-state air consumption | <36 L/h | - Response time | Line-line: 4ns, Line-ground: <20ns |
FAQ
We are a manufacturer with our own factory and independent R&D team. Our explosion-proof 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 explosion-proof model features Ex db IIC T4~T6 Gb certification with IP66 protection, suitable for direct use in hazardous gas environments.
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 natural gas industries requiring flameproof control in hazardous environments.
