Level indicators
Liquid Level Indicator
Direct Readout / No Signal Required
Visual liquid level indicator designed to display level directly in atmospheric vessels without the need for signal conversion. Uses a cantilever spring and diaphragm system to provide accurate level indication with simple calibration. Available with an optional single switch configuration for electrical signaling and alarm integration.
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Highlights
- Direct-reading scale in feet and inches; vessel height range 6-30 feet; 90 PSIG max head pressure
- Two-knob calibration (zero and span) achievable without changing liquid level in vessel
- Sealed cast aluminum housing; Teflon dry-film lubricated bearings require no oiling
- Diaphragm material options: Buna-N, fluorocarbon, Compound W, and Teflon
- Connection options: NPT, grooved, and 150RF flange in iron, steel, 316SS, and PVC
- Single Switch variant adds SPDT microswitch (5A @ 125/250/480 VAC) with adjustable high and low set points
- Snubber option available for turbulent or unstable process fluid conditions
Application
- Continuous liquid level indication on atmospheric storage and process tanks
- High and low level alarms on atmospheric vessels (Single Switch variant)
- Production, water disposal, and storage tank liquid level monitoring
SUBMERSIBLE LEVEL TRANSMITTER
Hydrostatic / 4–20 Ma Output
Submersible hydrostatic level probes designed for continuous liquid level measurement in tanks, vessels, and industrial applications. Supports measurement up to 500 mH₂O with 4–20 mA and voltage outputs for reliable signal transmission. Available with corrosion-resistant materials and ATEX-certified configurations.
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Highlights
- Measuring range: 1 to 500 mH2O
- Output signal: 4...20 mA, 0...10 V, 0...2.5 V
- Accuracy: 0.2%
- Hastelloy or 316L stainless steel diaphragm
- ATEX certified
- Marine certificate: DNV GL
Application
- Continuous hydrostatic level measurement in tanks and vessels
- Industrial liquid level monitoring in oil and gas production
- Hazardous area level measurement requiring ATEX certification
- Marine and offshore liquid level applications
- Submersible level measurement in aggressive media
SMART SUBMERSIBLE LEVEL TRANSMITTER
Hart / Modbus Communication
Smart submersible hydrostatic level probes designed for continuous liquid level measurement in tanks and industrial applications. Supports measurement from 1 to 100 mH₂O with HART and Modbus communication for enhanced data integration and accuracy. Available in corrosion-resistant materials, including full titanium construction, with marine-certified configurations.
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Highlights
- Measuring range: 1 to 100 mH2O
- Output signal: 4...20 mA + HART
- Modbus RTU communication protocol
- Accuracy: 0.1%
- Hastelloy or 316L stainless steel diaphragm
- Titanium construction available (SGE-25S.Smart)
- ATEX certified
- Marine certificate: DNV GL
Application
- Smart hydrostatic level measurement with HART or Modbus integration
- Level monitoring in oil and gas production tanks and vessels
- Hazardous area installations requiring ATEX certification
- Highly corrosive liquid applications requiring titanium wetted parts
- Marine and offshore level measurement
Hydrostatic Level Probes
Tank & Vessel Measurement
Submersible hydrostatic level probes designed for tank and vessel level measurement across a wide range of industrial applications. Supports measurement from 200 to 3000 mmH₂O with 4–20 mA and HART output for reliable signal transmission and control integration. Available with optional local display and marine-certified configurations for demanding environments.
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Highlights
- Measuring range: 200 to 3000 mmH2O (up to 20m for APC-2000ALW/L)
- Output signal: 4...20 mA + HART
- Accuracy: 0.16%
- Local display option available
- ATEX certified
- Marine certificates: DNV GL, BV
Application
- Hydrostatic level measurement in storage tanks and process vessels
- Oil and gas production level monitoring with HART integration
- Deep tank or sump level measurement requiring extended range
- Marine and offshore liquid level applications
- Applications requiring local level indication at the probe
SUPERIOR DRUM GAUGE
VOLUME MEASUREMENT / CHEMICAL DRUMS & TANKSDrum gauge that reads treatment volume directly in both quarts and liters. Carbon or stainless heads and an Aflas seal suit chemical service and drums. Two marking clips and a vented design support accurate metering.
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Highlights
- Carbon steel or stainless steel heads
- Aflas seal for chemical resistance
- Vented design
- Two marking clips
- Pumping scale in quarts or liters
- 3/4" NPT connection
Application
- Chemical drum level measurement
- Tank volume monitoring
- Metered fill and draw
- Chemical injection supply monitoring
- Treatment inventory tracking
ENVIRONMENTAL SEALED GAUGE GLASS
SEALED LEVEL INDICATION / EXPOSED SERVICESealed gauge glass built to replace unprotected glass in exposed service. Its design eliminates the two most common breakage points on standard gauges. Stainless steel nozzles resist corrosion in outdoor and sensitive locations.
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Highlights
- Replaces unprotected gauge glass
- Eliminates two common breakage points
- Stainless steel nozzles
- Reduced spill and leak risk
- 5/8" and 3/4" nozzles
- Standard and custom lengths available
Application
- Exposed and outdoor tank service
- Environmentally sensitive locations
- Sealed level indication
- Spill-prevention installs
- Tank and vessel gauging
GAUGE GLASS
VISUAL LEVEL INDICATION / TANKS & VESSELSVisual reading element for level gauge assemblies in red line or transparent styles. Wall thickness options cover standard, high pressure, and heavy wall service. Stocked lengths and custom sizing suit most vessel and tank installs.
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Highlights
- Red line or transparent
- Standard, high pressure, or heavy wall
- 5/8" and 3/4" OD
- Stocking lengths from 12" to 72"
- Custom lengths available
- Fits standard gauge valve assemblies
Application
- Tank and vessel level gauging
- High-pressure gauge assemblies
- Gauge glass replacement
- Separator and treater level indication
- Direct visual level reading
GAUGE GUARDS
GAUGE GLASS PROTECTION / EXPOSED SERVICEProtective guard that shields gauge glass from impact and breakage in service. Zinc plated steel construction resists corrosion in outdoor and exposed installs. Standard and custom lengths fit common gauge glass assemblies.
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Highlights
- Prevents gauge glass breakage
- Zinc plated steel
- Corrosion-resistant finish
- Standard 48" length
- Custom lengths available
- Fits standard gauge glass assemblies
Application
- Gauge glass protection
- Exposed and high-traffic installs
- Tank and vessel gauge assemblies
- Outdoor and weather-exposed service
- Impact-prone locations