Industrial Thermocouple, WR Series

Assembly thermocouple with protective tube · K / N / E / J / T / S / R / B

Spu:

IC-ITC-WR

Introduction

Product Overview

The WR series industrial thermocouple is a permanent installation sensor for measuring furnace, pipe, ladle and heat-treatment equipment temperatures up to 1800 °C. The model code defines the wire type, number of pairs, mounting fitting, junction box, protective tube diameter, accuracy class and insertion length.

Key Features

Nine protective tube materials graded A to I, from 20# carbon steel to tantalum for up to 2300 °C
Metal tubes Φ16 mm and Φ20 mm, non-metal tubes Φ16 mm and Φ20 mm
Total length 225 – 2650 mm; insertion depth l = L − L0
Junction box options: simple, splash-proof and waterproof
Fixing devices 1–6 incl. fixed thread, movable flange, fixed flange, 90° angle flange and tapered thread
Manufactured to JB/T9238-1999 with class I / II / III tolerances

Technical Data

Item	Specification
Model code	WR □□□□□□□ – wire type, pairs, fitting, junction box, tube OD, accuracy class, L/l, material
Tube materials	A 20# carbon steel (-100~500 °C); B 1Cr18Ni9Ti (-200~900 °C); C Cr25Ti (-400~1000 °C); D high-alumina (0~1300 °C); R corundum CT1 (0~1600 °C); F MoSi2 MS (0~1600 °C); G tantalum tube (0~2300 °C); H heat-resistant alloy; I corrosion-resistant alloy
Standard length range	L 225 – 2650 mm (OD code 0 = Φ16, 1 = Φ20, 2 = Φ25, 3 = tapered)
Response time	Metal tube < 60 s; non-metal tube < 120 s; double-layer non-metal < 210 s
External exposure L0	100 / 150 / 200 / 250 mm (150 standard); socket box 30 / 50 / 100 mm; tapered welded L0 = 230 mm
Working pressure of fittings	Carbon steel: atmospheric for codes 1/3/5, ≤1.0 MPa for 2/4
Standard	JB/T9238-1999, class I / II / III tolerances

Applications

Heat treatment furnaces, annealing and tempering lines, non-ferrous melting, kilns, ladles, tundishes, salt-bath and quench equipment.

Ordering Information

Provide the complete model code, or state: wire type, fixing device, junction box type, tube material and OD, accuracy class and L/l. Special lengths and non-standard materials are quoted on request.

Applications

Heat treatment furnaces, annealing and tempering lines, non-ferrous melting, kilns, ladles, tundishes, salt-bath and quench equipment.

Quality Control Series

Successful measuring rate ≥ 98% for expendable probes
100% pre-shipment sampling inspection on response time and continuity
Batch traceability with production date coding

Packaging & Delivery

Export carton with moisture barrier; customized palletizing on request
Standard lead time 15–30 days depending on quantity
OEM / ODM and private-label packaging available

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