WR series explosion-proof and intrinsic safety thermocouple

1Product Introduction

In chemical plants, the production site is often accompanied by various flammable, explosive and other chemical gases and vapors. Using ordinary thermocouples is very unsafe and can easily cause environmental gas explosions. Therefore, explosion-proof thermocouples must be used as temperature sensors in these situations. Explosion proof thermocouple products are suitable for use indIIBT4~dIICT6In places with explosive gas hazards within the temperature range.

The performance of explosion-proof thermocouple technology meets the requirementsZBN11002-87Technical conditions and specifications for industrial thermocouplesZBY300-85Industrial thermocouple calibration table and allowable error, and all products meet the general requirements for explosion-proof electrical equipment used in explosive environmentsGB3836.1-83Standard.

Industrial explosion-proof thermocouples with nickel chromium-Nickel silicon(.KType) and nickel chromium-Copper nickel（EThere are two types.

2、 Principle structure

The structure and principle of explosion-proof thermocouples and assembled thermocouples are basically the same. The difference is that the explosion-proof product junction box (housing) adopts a special explosion-proof structure in the design. The junction box is made of high-strength aluminum alloy die-casting and has sufficient internal space, wall thickness, and structural strength; The thermal stability of rubber sealing rings meets the national explosion-proof standards. So, when the explosive mixed gas inside the junction box explodes, its internal pressure will not damage the junction box, and the resulting heat energy cannot diffuse outward-Spread the word.

Due to the use of the above-mentioned explosion-proof special structure, the product fully complies with the requirements for use inWithin the explosion-proof category range of dIIBT4 to dIICT6, as long as users strictly follow the product usage rules, the product can achieve reliable explosion-proof effect.

IIITECHNICAL INDEX

4、 Model Definition

Explosion proof and intrinsic safety thermocouples:

Explosion proof and intrinsically safe armored thermocouple: