Anti-Corrosion Explosion-Proof Electromagnetic Flowmeter For Hazardous Environments
The anti-corrosion and explosion-proof electromagnetic flowmeter is a specially designed pipeline electromagnetic flowmeter for measuring corrosive media and can operate safely in flammable and explosive hazardous environments.
| Lining material | Resistant to pH range | Maximum temperature resistance | Applicable media | Limitations |
|---|---|---|---|---|
| PFA (Perfluoroalkoxy resin) | pH 0-14 (strong acids, strong bases, organic solvents) | 260℃ | Sulfuric acid, sodium hydroxide | Weak wear resistance, be cautious when solid content > 5% |
| PTFE (Polytetrafluoroethylene) | pH 0-14 (resistant to strong corrosion, non-stick to media) | 250℃ | Fluorine acid, aqua regia, concentrated nitric acid | Insulation slightly decreases at high temperatures (> 200℃) |
| Ceramic (Al₂O₃) | Resistant to acids and alkalis, wear-resistant, oxidation-resistant | 1800℃ | Corrosive media with high solid content (such as slurry, salt slurry) | Brittle, avoid severe impact |
| Polyurethane rubber | Resistant to weak acids and alkalis, highly wear-resistant | 80℃ | Seawater, slurry, weak acids and alkalis |
| Explosion-proof Type | Structural Principle | Explosion-proof Grade (Typical) | Aplicable Environment |
|---|---|---|---|
| Flameproof Type (Ex d) | Outer casing withstands internal explosion pressure to prevent flame leakage | Ex d IIC T6 | Chemical workshops, petrochemical plant areas (Class II C gases such as hydrogen and acetylene) |
| Intrinsically Safe Type (Ex ia) | Limit circuit energy to prevent ignition of explosive mixtures | Ex ia IIC T4 | Instrument control rooms, internal junction boxes in explosion-proof areas |
| Increased Safety Type (Ex e) | Optimize structural design to reduce ignition risk | Ex e IIB T5 | Non-direct explosion zones (such as auxiliary workshops in petrochemical plants) |
| Dust Explosion-proof Type (Ex tD) | Prevent dust from entering the casing to avoid explosion | Ex tD A21 T135℃ | Flour mills, chemical dust workshops |
The anti-corrosion and explosion-proof electromagnetic flowmeter is a high-tech and highly specialized instrument. Its core features are as follows:
When making a selection, it is essential to provide detailed working conditions and choose qualified products with corresponding explosion-proof certification certificates to ensure the safety, reliability, and compliance of the entire measurement system.