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You are here: Home1 > Blog2 > Application Notes3 > Hazardous Location4 > 1220701 Single Seal Pressure Transducers

Single Seal Pressure Transducers

Core Sensors Receives ANSI/UL 122701 Single Seal Approval for Hazardous Location Products

Core Sensors is proud to announce that its complete line of hazardous location products has received ANSI/UL 122701 single seal approval for pressures up to 30,000 PSI. This approval marks an important milestone for customers who need dependable pressure measurement solutions in demanding hazardous environments.

By expanding single seal approval, Core Sensors can better support applications where compliance, safety, and high-pressure performance are critical. The approval helps simplify product selection for customers operating in hazardous locations while maintaining the rugged performance expected from Core Sensors products.

What Single Seal Approval Means

ANSI/UL 122701 Single Seal certification is a hazardous-location safety standard for equipment that uses a single process seal between electrical components and flammable or combustible process fluids. It helps reduce the risk that a seal failure could allow those fluids to migrate into the electrical system, which is especially important in environments where ignition hazards may exist.

Single Seal approval is an important certification for pressure sensors used in hazardous locations. In practical terms, it helps support safer installation and use in environments where flammable gases, vapors, or other explosive atmospheres may be present.

For customers, this can reduce complexity during specification and qualification. It also helps reinforce confidence that Core Sensors hazardous location products are designed for demanding applications where safety and reliability cannot be compromised.

Built for hazardous environments

Core Sensors’ hazardous location product line includes solutions designed for applications where durable construction and certified performance are essential. With single seal approval now covering pressures from less than 1 PSI up to 30,000 PSI, the product family is positioned to serve a wider range of high-pressure systems.

Intrinsically safe pressure transducer with mating cable assembly

This expanded approval supports use in tough industrial settings where pressure measurement must remain stable, repeatable, and compliant. Whether the application involves process monitoring, control systems, or test equipment, the certification helps customers select a solution with greater confidence.

Applications for high-pressure hazardous locations

The ANSI/UL 122701 single seal approval is especially valuable in industries where hazardous location compliance and high-pressure operation overlap. Common applications include:

  • Oil and gas production
  • Wellhead monitoring
  • Drilling and completions equipment
  • Refining and downstream processing
  • Chemical processing and petrochemical systems

Why this matters to customers

For engineers, OEMs, and maintenance teams, certification can be just as important as performance. A broader single seal approval range gives customers more flexibility when designing systems that need to operate safely in hazardous areas.

It can also help reduce the need to evaluate multiple sensor configurations for different pressure ranges. That means simpler specification, easier integration, and fewer constraints when building or upgrading equipment.

CS54 Class I Div 2 DP Transmitter with Conduit
CS80 Intrinsically Safe Pressure Transmitter

Core Sensors’ hazardous location expertise

Core Sensors has long supported industrial customers with pressure measurement solutions designed for demanding environments. This approval reinforces that commitment and expands the company’s ability to serve customers who need hazardous location products with high-pressure capability.

For applications that require specialized mechanical, material, or electrical configurations, Core Sensors also designs custom pressure transducers. That flexibility allows the company to support both standard and highly specific application needs.

Hazardous Location Pressure Transducers

Our team is committed to manufacturing solutions with standard, semi-custom, and custom sensor designs. Our team consists of some of the most creative, experienced sensor engineers in the industry. For more information or to request a quote, please call us at 862-245-2673 or email [email protected].


About Core Sensors:
Core Sensors designs, manufactures and distributes high quality sensors for measuring pressure and temperature properties for industrial and hazardous applications worldwide. Core offers solutions for industrial, submersible, differential and hazardous applications in both standard and custom packaging. In-house design and manufacturing capabilities along with strategic manufacturing partners allows Core to create solutions to some of the most complex sensor requirements.

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