Selecting the proper refinery level instrumentation is one of the most consequential decisions a process facility makes. The right instruments protect personnel, maintain throughput, and keep operations within regulatory compliance, while the wrong choice introduces downtime, measurement error, and safety risk. Jogler, LLC manufactures a complete portfolio of level measurement technologies engineered to meet the demanding conditions found in refineries, from high-pressure separators to corrosive process vessels and large storage tanks. This guide explains how to match each application to the correct instrument so you can specify with confidence.
Why Refinery Applications Demand Specialized Instruments
Refineries present some of the harshest operating environments in industrial processing. Extreme temperatures, elevated pressures, corrosive media, and the constant presence of flammable hydrocarbons mean that level measurement in refineries cannot rely on general-purpose hardware. Equipment must perform reliably across years of continuous service while meeting strict safety and code requirements.
Effective instrument selection depends on several variables:
- Process pressure and temperature ranges
- Fluid characteristics such as specific gravity, viscosity, and corrosivity
- Interface measurement needs (oil and water, for example)
- Hazardous area classification at the installation point
- Maintenance access and the cost of process interruption
Understanding these factors up front helps you avoid over-specifying or, worse, under-specifying instrumentation that fails in the field.
Matching Jogler Products to Refinery Applications
Jogler’s product lineup covers the full spectrum of refinery requirements. Each technology serves a specific purpose, and many are designed to work together for redundant, layered control. The sections below outline where each instrument fits within refinery level instrumentation strategies.
Magnetic Level Gauges (JMG)
The JMG Magnetic Level Gauge is a safe, economical way to measure and control level across a wide range of process pressures, temperatures, and fluids. It handles pressures from full vacuum to 5,000 psig and temperatures from -320°F to 1,000°F, making it well suited for separators, surge drums, and process vessels. Because the JMG provides a clear visual indication without exposing glass to process media, it serves as a dependable refinery storage tank level gauge and process vessel indicator. The gauge can be coupled with a magnetostrictive transmitter or any Jogler level switch to deliver combined visual and electronic outputs.
Magnetostrictive Level Transmitters (MGT-6000/ILT-6000)
When continuous electronic output is required, magnetostrictive technology delivers high accuracy with no moving electronics in the process. The MGT-6000 mounts externally to a magnetic level gauge, while the ILT-6000 inserts directly into the vessel within an isolation well. Both provide 4-20 mA output with HART communication, dual level outputs for total and interface measurement, and the ability to be serviced without process interruption. These transmitters are a core component of accurate process tank level measurement refinery operations rely on for control and inventory management.
Point Level Switches
For high- and low-level alarms, dump and fill control, and overfill prevention, Jogler offers magnetically actuated point level switches. The JS-10 and JS-30 provide electrical switching in SPDT or DPDT configurations, while the JP-450 delivers a no-bleed pneumatic option for instrument-air applications. All units couple magnetically through the chamber wall, keeping the switch isolated from process fluid and pressure. These switches function as reliable oil refinery level sensors for alarm and control points where discrete actuation matters more than continuous measurement.
Direct-Reading Liquid Level/Flow Indicators
Jogler direct-reading indicators offer a simple, leak-proof way to observe liquid level and flow. Patented PTFE Teflon SuperSeal inserts seal on the outside diameter of the sight tube, eliminating gaskets and O-rings while accommodating thermal expansion. These indicators support refinery tank level monitoring with high visibility and minimal maintenance compared to traditional sight glasses.
ASME Compliance and Hazardous Location Certifications
Code compliance is non-negotiable in refinery service. Jogler products are custom-designed to meet customer specifications and manufactured to applicable ASME B31.1 and B31.3 code requirements, with ASME Code U and S stamping available on pressure-bearing components. This compliance assures reliable operation and supports facility-wide safety documentation.
Hazardous area level instrumentation must also carry the correct electrical classifications for the installation zone. Jogler instruments are certified for demanding classified environments, including:
- Magnetostrictive transmitters: Class I, Division 1, Groups A, B, C, D; Class II and Class III, Groups E, F, G; intrinsically safe ratings; NEMA 4X
- Magnetic point level switches: Class I, Division 1, Groups B, C, D; Class I, Division 2, Groups A, B, C, D; Class II and Class III, Groups E, F, G
- Laser level transmitters: Class I, Division 2, Groups A, B, C, D; Class II and Class III, Groups E, F, G; ATEX and IEC ratings
Specifying instruments with the proper certifications protects both personnel and the facility’s regulatory standing.
Built in Baton Rouge for the Gulf Coast Industry
Jogler manufactures its products at its Baton Rouge, Louisiana facility, placing it at the center of the Gulf Coast’s refining and petrochemical sector. Advanced in-house capabilities support consistent quality and reduced lead times, including:
- CNC machining and water jet machining
- Extruded process connections for full-bore, radiographable welds
- ASME Section XI welding and post-weld heat treatment
- X-ray inspection and PMI with and without carbon content
- Oxygen clean service, epoxy painting, and in-house powder painting
These capabilities allow Jogler to deliver industrial level measurement solutions oil and gas operators depend on, custom-built to exact specifications and shipped on time.
How To Choose the Best Instrument for Your Application
Use this quick reference to narrow your selection:
- Visual indication on a vessel: Magnetic Level Gauge (JMG) or direct-reading indicator
- Continuous electronic output and interface measurement: MGT-6000 or ILT-6000
- High/low alarms and pump control: JS-10, JS-30, or JP-450 point level switches
- Simple, leak-proof flow or level observation: Direct-Reading Liquid Level / Flow Indicators
Many refineries combine technologies on a single vessel, pairing a magnetic gauge with a transmitter and switches for redundant control. Determining the best level measurement technology for refinery tanks depends on the specific process conditions and the level of redundancy your safety case requires.
Need Quality Level Instrumentation for Refinery Applications? Request a Quote
If you’re specifying instruments for a new unit or upgrading existing assets, Jogler’s engineering team will help you select the correct refinery level instrumentation for each application. Contact us to discuss your process conditions or request detailed data sheets for any product in the lineup.