Duplex J type Sensor 12mmx 4 inch probe and 3/4 inch thread connection

Heavy-Duty Duplex J-Type Thermocouple – 12mm x 4" SS Probe with 3/4" Threaded Connection

Product Description

Engineered for high-stress industrial environments where mechanical durability and continuous operation are critical, this heavy-duty Duplex J-Type Thermocouple delivers reliable thermal measurement. Housing two independent Iron-Constantan (Type J) sensing elements within a single, rugged 12mm stainless steel probe, this sensor provides essential built-in redundancy. The robust 4-inch (approx. 100mm) insertion length and standard 3/4-inch threaded process connection ensure a secure, direct mount into heavy plastics extruders, molding equipment, and industrial furnaces.

Technical Specifications

• Sensor Type: Duplex Thermocouple Type J (Iron-Constantan - Dual Independent Junctions)

• Probe Dimensions: 12mm (Outer Diameter) x 4 Inches (Length / approx. 100mm)

• Process Connection: 3/4" Thread (Standard for direct pressure-tight mounting)

• Material Construction: Heavy-duty Stainless Steel (SS-304 / SS-316) for superior mechanical and corrosion resistance.

• Operating Temperature Range: Optimized for industrial ranges from 0°C to 750°C (depending on junction configuration).

• Terminal Head: Available with standard weatherproof (IP67) or explosion-proof (Exd) aluminum connection heads.

Key Features

• Fail-Safe Redundancy: The duplex design ensures that if one thermocouple element fails due to thermal cycling, the secondary element continues to provide accurate data to your primary PID controller or PLC, preventing costly downtime.

• Extreme Mechanical Strength: The ultra-thick 12mm probe is built to withstand heavy physical impact, high vibration, and abrasive industrial flow that would easily snap standard 6mm sensors.

• Rapid Direct Mounting: The integrated 3/4-inch thread eliminates the need for extra compression fittings, allowing for an immediate, secure installation into heavy machinery and process tanks.

• Optimized for Heavy Industry: Type J calibration is the industry standard for plastics manufacturing, foundries, and resin processing due to its excellent stability in mid-to-high temperature ranges.

   

Common Applications

• Plastics & Molding: Essential for heavy-duty injection molding machines and thick-walled extrusion barrels.

• Foundries & Metal Processing: Ideal for monitoring mid-range furnaces and heat-treatment ovens.

• Chemical & Resin Tanks: Provides the ruggedness needed for direct insertion into mixing vats where mechanical stress is high.