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Pipeline Liquid Level Sensor Category Overview

Our Pipeline Liquid Level Sensor range detects fluid presence and point levels on pipes and tubes without breaching the line. Using capacitive and photoelectric/infrared principles, these sensors offer fast response, clamp-on installation, and reliable performance on plastic, glass, and composite pipes. They help automate filling, prevent pump dry-run, and trigger leak or overflow alarms. Pair them with compatible controllers for closed-loop control.

Applications and Industries

Our solutions serve industrial automation, medical equipment, agricultural machinery, smart appliances, EV charging coolant lines, and smart city water networks. They support precise level monitoring and event-based control along non-metallic pipes and composite tubing. Integrating with controllers enables pump protection, overflow prevention, and real-time alarms.

Selection Guide

• Sensing principle: Choose capacitive for most non-metallic pipes and varied fluids; select photoelectric/IR for clean lines where optical detection of interfaces or bubbles is beneficial.

• Pipe attributes: Match to pipe material, wall thickness, and outer diameter. Verify sensitivity for thick walls and small ODs.

• Outputs and control: Pick digital high/low or relay outputs to suit PLCs, relays, or dedicated controllers.

• Mounting: Use clamp-on or card-tube styles for quick setup. Choose wall-mount for fixed detection points.

• Response needs: For rapid switching in dynamic flow, favor fast-response variants and confirm under actual process conditions.

Technologies & Working Principles

Capacitive Sensing

This method measures dielectric changes through the pipe wall to detect liquid presence without contact. It suits small to medium OD non-metallic pipes and supports sensitivity and hysteresis tuning.

• Clamp-on alignment for quick installation

• 5–24 V options; digital or relay outputs

• Works with plastic, glass, and composite pipes

Photoelectric/IR Sensing

Optical variants detect liquid interfaces or bubbles by transmission or reflection through the pipe wall. Designs resist ambient light for stable operation.

• Fast switching for dynamic flow

• Compact housings for tight spaces

• Multiple wiring and output options

Contact Probes (Special Cases)

When non-contact is not feasible, contact sensors provide precise point-level detection inside the line.

• Direct liquid contact for definitive switching

• Media-compatible wetted materials

• Configurable outputs for integration

Models, Controllers & Tools

Clamp-On and Wall-Mount Options

• XKC-Y29D: Card-tube/clamp-on model for rapid deployment on small to medium OD non-metallic pipes

• XKC-Y29A: Wall-mounted variant for fixed detection points

• XKC-Y23A: Compact sensor suited to small ODs and dense layouts

Controllers and Displays

• XKC-C383: Automatic pipeline/tube start–stop control

• CY10: Multi-point display for distributed sensing

• C382: Controller option for broader non-contact automatic control

Field Verification Tool

• E700 portable liquid level detector: Speeds on-site checks and maintenance verification

Advantages

Engineering and Reliability

Over 10 years of R&D and manufacturing with 30+ patents support accuracy, stability, and long-term performance. Robust materials and anti-interference circuitry handle temperature swings, vibration, and varied wall thicknesses.

Key Features

• Non-contact installation (clamp-on, wall-mount, card-tube) minimizes downtime and avoids contamination

• Fast response with tight hysteresis for stable detection

• Digital high/low or relay outputs; easy pairing with XKC-C383 or CY10

• Options for higher protection levels and wide temperature ranges

• Compatible with non-metallic pipes; sensitivity tuning supports thick walls and different fluids

Customization and Integration

Geometry, mounting, sensitivity profiles, outputs, wiring, and controller pairing can be tailored to pipe size, material, and process needs.

Broader Sensing Portfolio

Complementary products include non-contact liquid level sensors, infrared, laser ranging, millimeter-wave/microwave presence, ultrasonic devices, and WiFi controllers for integrated sensing and control.

Installation, Calibration, and Maintenance

Align the sensing area to the target point, secure the clamp or bracket, and route cables away from strong EMI sources. Adjust sensitivity for pipe material, wall thickness, and fluid, then verify switching under static and flowing conditions. Perform periodic visual checks and use the E700 tool for quick functional confirmation.

Contact us to discuss your application, request samples, or obtain an engineering quotation.