Why Choose Magnetic Level Gauge for Boiler & Power Plant
Common magnetic level gauges adopt ordinary sealing structure, easily fail seal leakage under boiler saturated steam high temperature & pressure, and scale buildup inside the cylinder leads to float sticking, causing inaccurate drum liquid level measurement and hidden safety hazards for boiler operation.
Our power plant dedicated magnetic level gauge is optimized for boiler drum, deaerator, steam-water separator and thermal system high-temperature water working conditions. It uses metal high-temperature sealing components to resist saturated steam erosion, inner wall polishing + blowdown structure prevents calcium & magnesium scaling. Focus on high temperature & high pressure resistance, steam erosion resistance, different from chemical anti-corrosion type, LNG cryogenic type and oil&gas explosion-proof type. Position differentiation: Core highlights high temperature steam resistance, anti-scaling, long-term continuous power plant operating stability, no redundant anti-corrosion or low-temperature structure design. Supports high-temperature transmitter expansion, matched thermal power DCS system, becomes standard level instrument for thermal power, cogeneration boiler systems.
Key Features and Benefits
- High-Pressure High-Temperature Sealing System Metal hard seal structure adapts boiler saturated steam environment, effectively prevent steam leakage under long-term high temperature & pressure.
- Anti-Scaling & Self-Cleaning Design Ultra-smooth inner wall + multiple blowdown ports, regularly drain boiler water scale to avoid float blockage caused by scaling.
- Steam Erosion Resistant Material 316L, 310S high-temperature alloy barrel and float resist high-temperature steam scouring & oxidation.
- All-metal high-temperature flip assembly All-metal indicator flaps withstand long-term radiant heat near boiler drums, never aging or deforming.
- Boiler automatic control matching Support high-temperature resistant 4-20mA transmitters, realize remote level interlock protection for boiler drum water level.
- Power station standard flange size GB/T / ASME power standard flanges, directly match boiler drum reserved interfaces.
Technical Specifications
Power plant boiler magnetic level gauge targets high-temperature steam scaling and steam leakage pain points, adopts high-pressure metal sealing and anti-scaling structure. Technical parameters are listed below:
|
Item |
Specification |
|
Chamber Outer Diameter |
51, 55, 57, 60.3, 65, 76mm; thickened wall for boiler pressure customized |
|
Chamber & Flange Wetted Material |
304SS, 316L, 310S, Inconel 625 |
|
Float Material |
316L, 310S high-temperature alloy |
|
Indicator Flap Temperature Resistance |
All-metal flap: ≤400℃ (standard configuration for power plant); nylon aluminum flap optional for low-temperature auxiliary equipment |
|
Working Pressure |
Vacuum ~ 16MPa (Class 900); Max customized design pressure: 32MPa @100℃ |
|
Medium Operating Temperature |
-40℃ ~ 400℃ (adapt boiler saturated steam & high temperature feedwater) |
|
Minimum Medium Density |
≥0.4g/cm³ |
|
Medium Viscosity |
≤10⁻⁴ ㎡/s |
|
Measuring Range |
200mm ~ 5500mm; standard tube length 6000mm |
|
Installation Mode |
Power station standard flange, welding |
|
Drain Port |
Multiple blowdown ports for regular scale cleaning |
|
Vent Port |
Steam exhaust port customizable |
|
Optional Supporting Accessories |
High temperature magnetic transmitter, magnetostrictive transmitter, high temperature limit switches |
Applications
- Thermal Power Plant Boiler Steam Drum Level Measurement
- Deaerator, feedwater tank, condenser of power stations
- Cogeneration heating boiler systems
- Waste heat boiler (HRSG) drainage & blowdown tanks
- Industrial steam boiler water level monitoring
FAQ
Q1: What distinguishes boiler dedicated level gauge from high-temperature general magnetic level gauge?
A: Boiler version upgrades metal hard seal and multi-blowdown anti-scaling structure aiming at boiler steam scaling & leakage problems, more suitable for 24-hour continuous boiler operation.
Q2: Can it replace traditional boiler glass level gauge?
A: Completely replace glass level gauge, no risk of glass breakage, safer for boiler workshop.
Q3: Does scaling cause float stuck during long running?
A: Multi blowdown ports allow regular sewage discharge and scale cleaning to avoid scaling accumulation effectively.
Tell us boiler pressure, steam temperature, drum connection size and control system type. Our power instrument engineers provide anti-scaling configuration plans free of charge, deliver quotation and drawings within 24-48 hours. Click contact to start consultation.
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