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Explosion Flame Proof Nipple Type Temperature Sensors | Okazaki Manufacturing

Writer: Luis Alberto Fing
Luis Alberto Fing
Aug 13, 2025
2 min read

Updated: Sep 28

Welcome to Nichiboku's industrial Blog

Introduction

For industries requiring safe, reliable temperature measurement in hazardous areas, Okazaki Manufacturing introduces the Explosion Flame Proof Nipple Type Temperature Sensors. Featuring Aeropak® and Resiopak® models, these sensors are optimized for seamless integration with certified terminal boxes or transmitters, offering flexibility and safety across complex environments.


Okazaki Manufacturing temperature sensors image with products labeled Aeropak and Resiopak. Text details specifications and features.
Explosion Flame Proof Nipple Type Temperature Sensors by Okazaki Manufacturing: Featuring Aeropak® Sheathed Thermocouples and Resiopak® Sheath Resistance Thermometer Sensors for enhanced safety and precision.

Intrinsic Safety Meets Global Certification & Compatibility

  • Explosion and Flame Proof DesignCertified to conform with major global standards—IECEx, ATEX (Baseefa), NEPSI, TR CU, PESO, FM/UL, and more.

  • Activates with Certified TerminationsConfigurable with terminal boxes from leading providers like Yokogawa, Emerson, Azbil, and Honeywell—simplifying compliance and installation.

Sensor Series Overview: Explosion Flame Proof Nipple Type Temperature Sensors

Aeropak® Nipple Series – T39N / T49N & T39U / T49U

  • Sheathed thermocouples with flexible nipple and union options.

  • Supports a variety of thermocouple types (N, K, E, J, T) and sheath materials including 316SS, 310S SS, and high-strength alloys.

  • Excellent protection class rating: IP66.

  • Ambient temperature range: –50 °C to +60 °C (T6), –50 °C to +75 °C (T5).

Resiopak® Nipple RTD Series – R39N / R49N & R39U / R49U

  • Platinum resistance thermometer sensors (e.g., Pt100) available in various accuracy classes.

  • Designed for the same robust safety and environmental protection as Aeropak®.

Technical & Configuration Highlights

  • Certification-Matched ConfigurationsSensors must be paired with terminal boxes or transmitters with the same agency certification to maintain compliance.

  • Robust and Flexible DesignFeatures nipple types with optional spring or support pipe structures for enhanced mechanical resilience and adaptability.

  • Wide Ambient Range & Environmental RatingBuilt to withstand extreme temperatures and sealed environments.

Ideal Applications & Advantages

These Explosion Flame Proof Nipple Type Temperature Sensors are built for:

  • Petrochemical, LNG, and Hazardous FacilitiesWhere explosion-proof integrity and temperature monitoring are mission-critical.

  • Seamless System IntegrationCompatible with a wide array of certified enclosures and components, easing procurement and maintenance.

  • Global DeploymentFully tested for compliance with safety regulations across key markets like Europe, North America, Russia, India, China, and more.

Technical Business Value

  • Certified Safety – Compliant with international explosion-proof codes.

  • Modular & Flexible Design – Supports various sensor types and installation configurations.

  • Streamlined Integration – Compatible with global certified systems and enclosures.

For additional Japanese industrial manufacturers and equipment categories:

Nichiboku Tech — Virtual Product Catalogue  https://www.nichiboku.com/japanese-industrial-products

For replacement or procurement evaluation, provide the manufacturer, exact model number, copy of the original drawing or nameplate, technical specifications, quantity and required quotation deadline.



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