What this document is: DREHMO i-maticEx flameproof intelligent actuator literature (Chinese, 28 pages) with company background, series positioning and technical data. i-maticEx is the Ex version of the i-matic intelligent series for oil & gas and other hazardous areas, with a fire-proof option. Per the manufacturer: DREHMO was founded in 1946 (formerly part of Germany’s EMG group), holds roughly 30% of the European power market, has delivered over one million actuators worldwide and more than 200,000 in China — including nearly 1,000 units on the Waigaoqiao 2×900 MW ultrasupercritical units.
| Item | i-matic Ex (flameproof series) |
|---|---|
| Positioning | Ex-special version of the i-matic series for oil & gas and other hazardous areas; fire-proof option |
| Protection | IP68 (IEC 60529); corrosion class C3 (EN ISO 12944-2) |
| Ambient temperature | −25…+60 °C (Ex series); medium temperature up to +85 °C (Ex) / +100 °C (standard) |
| Applications | Oil, petrochemical, natural gas, pipeline service |
| Family | Output & applications |
|---|---|
| Multi-turn | Multiple 360° output turns, travel 2–1,450 turns; high-torque = basic + gearbox; flange per standard, custom on request |
| Part-turn | Output < 360°, for butterfly valves, ball valves, damper and louver dampers; special strokes 120°/180° with geared output |
| Linear | Multi-turn actuator + linear thrust unit, mainly for control valves; sized by thrust |
DREHMO_imaticEx智能型电动执行机构.pdf (Chinese, 28 pages; company and selection data per the manufacturer’s latest literature)
An industry resource for electric & pneumatic actuators, dampers and heaters: brand manuals, sizing guides and maintenance know-how. Global brands in, China manufacturing out.
