Scales for Weighing Petroleum and Industrial Liquified Gasses

Precision, safety, and intrinsic reliability for weighing pressurized and liquefied gases.

In petroleum refining and industrial gas production, precise weight monitoring is essential for safe, efficient operations. Whether handling propane, ammonia, chlorine, or other liquefied gases, pressure alone cannot indicate remaining contents, especially as the liquid phase transitions to vapor. Weight-based measurement provides the only accurate method for tracking material usage, preventing process interruptions, and maintaining compliance with safety regulations.

Arlyn Scales designs and manufactures intrinsically safe weighing systems built to withstand corrosive environments, high pressures, and temperature fluctuations common to petroleum and gas facilities. Every system is engineered to perform with long-term stability and accuracy, even when installed near compressors, cylinders, or high-vibration process equipment.

Each model – floor, platform, or cylinder – is built in our Long Island, New York facility using stainless-steel load cells and Surface Acoustic Wave (SAW) technology for 20× greater readability than conventional strain-gauge designs.

Why Weight-Based Monitoring Is Critical for Gas and Petroleum Applications

In storage and bottling operations, liquefied gases remain at constant pressure until the final liquid evaporates. This means pressure readings provide no early warning of depletion—the gauge will stay steady until the cylinder or tank is nearly empty. When production depends on a consistent gas supply, this can lead to unplanned downtime, incomplete batches, or hazardous overdraws.

Weight-based monitoring eliminates these risks by providing a direct, continuous measure of product mass. With Arlyn Scales, operators can:

• Track gas usage in real time to maintain steady flow rates.
• Receive low-level alerts before cylinders are depleted.
• Record accurate data for compliance and inventory audits.
• Integrate readings with control systems for automated filling or changeover.

Arlyn’s intrinsically safe ArlynGuard series is approved for Class I, II, and III hazardous locations and includes models purpose-built for cylinder, ton-container, and platform weighing. Each system offers durable, corrosion-resistant construction for long service life in demanding petroleum and gas-handling environments.

Built for Safety, Accuracy, and Corrosion Resistance

Weighing equipment used in gas and petroleum environments must perform reliably under pressure, vibration, and exposure to corrosive compounds. Arlyn Scales are engineered from the ground up to meet these challenges.

Each model features stainless-steel load cells that resist corrosion from hydrocarbons, halogens, and refrigerants. Unlike aluminum alternatives that deform over time, Arlyn’s heat-treated stainless sensors maintain long-term calibration even under constant cylinder loading and unloading.

Platforms are low-profile for safe loading, minimizing strain and reducing the risk of cylinder tipping or line damage. Electronics are fully sealed and isolated to prevent contamination and withstand temperature fluctuations common in refineries, storage yards, and bottling facilities.

Every unit is built, calibrated, and tested at our Long Island, New York facility, ensuring consistent performance in Class I, II, and III hazardous environments.

Applications Across the Petroleum and Gas Industry

Arlyn Scales deliver dependable, weight-based monitoring for a range of liquefied gases and petroleum products. Each model integrates easily into production and safety systems to ensure compliance and efficiency in high-risk operations.

Common applications include:

• Liquefied Petroleum Gas (LPG): Continuous monitoring of cylinders and bulk tanks to prevent overfills and ensure safe dispensing.
• Ammonia and Chlorine: Corrosion-resistant weighing for feed and ton containers in fertilizer and water-treatment operations.
• Propane and Butane: Inventory tracking and bottling control in distribution and retail packaging.
• Refined Hydrocarbons and Solvents: Batch weighing and formulation control in blending and fuel processing lines.
• Industrial Gas Production: Monitoring argon, nitrogen, or carbon dioxide cylinders for accurate inventory and controlled delivery.

Using Arlyn’s ArlynGuard series, facilities can safely manage flammable or reactive gases with intrinsically safe, FM-approved systems that maintain accuracy even in explosion-prone areas.

Automation and Data Integration for Gas Weighing Systems

In gas production and petroleum handling, data accuracy is as important as physical stability. Arlyn Scales systems integrate seamlessly with existing control networks, allowing engineers to monitor weight, trigger automated processes, and record data for compliance and traceability.

Each model supports multiple output protocols — including 4–20 mA current loops, RS-485, Ethernet, USB, and Wi-Fi — enabling both analog and digital communication with process automation and safety systems. Modbus, Profinet and Ethernet IP are also available.

When paired with the Arlyn UpScale Touchscreen Indicator, operators can access enhanced control features such as:

• Real-time weight display with programmable alerts.
• Data logging to USB, internal memory, or cloud-based platforms.
• Wireless export to Google Sheets or local databases for audit-ready recordkeeping.
• Integration with programmable logic controllers (PLCs) for automated batching or refill operations.

These capabilities transform simple weighing devices into connected instrumentation that support safety, accountability, and operational efficiency across refinery and industrial gas environments.

Beyond monitoring and data logging, Arlyn Scales can also control your filling and dispensing systems directly—eliminating manual intervention and improving process precision.

Automated Filling, Dispensing, and Setpoint Control

Accurate fill management is essential for preventing overfills and ensuring consistent cylinder and tank weights. Arlyn’s Setpoint Controller provides programmable automation for pumping, dispensing, or cutoff operations:

• Configure up to eight target weights per scale for multi-stage fills.
• Use solid-state relays to control pumps, valves, or alarms.
• Automate cylinder changeovers and refilling with precision.
• Reduce operator involvement and minimize human error in hazardous environments.

This feature is especially valuable for LPG bottling, chlorine transfer, or ammonia blending, where even small miscalculations can result in costly spills or safety incidents. By automating fill cycles and alerts, operators maintain process accuracy and avoid downtime caused by manual oversight.

Scales Built for Continuous Operation

Every Arlyn system is manufactured and tested at our Long Island, New York facility, using materials and components designed to perform in explosive or corrosive environments. Stainless-steel frames, sealed electronics, and intrinsically safe load cells provide long-term reliability even under vibration, temperature variation, and continuous use.

From gas distribution terminals to refinery storage yards, Arlyn Scales deliver the precision, stability, and safety your process depends on. Our engineering team works directly with petroleum and gas producers to configure standard or custom systems suited to your capacity, communication, and environmental requirements.

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