WRKF,WREF,WZPF,WZCF(2F) series anti-corrosion thermocouple/resistorDetailed product description：

1. Overview

In some industrial production scenarios, due to the presence of corrosive media, thermocouples and thermistors are easily corroded and damaged during use. According to market demand, our company has developed corrosion-resistant thermocouples and thermistor series products since the 1990s. After being used by users, the effect is ideal. This series of products is divided into three types based on their anti-corrosion performance and temperature range:

a、 Wrap the outer layer of the stainless steel protective tube with F4 coating, which has good anti-corrosion performance. Except for molten metal lithium, potassium, sodium, hydrofluoric acid, chlorine fluoride, and oxygen fluoride with high flow rate liquid fluorine, it can resist the corrosion of almost all other chemical media and can be used for a long time in the range of 0-250 ℃.
b、 Titanium alloy tube: This tube can withstand corrosion from seawater, various chlorides and hypochlorites, wet chlorine, and oxidizing acids and alkalis below 500 ℃.
c、 Enamel glaze coating, working temperature up to+1000 ℃.
This series of products is mainly used for temperature measurement in industries with corrosive media such as chemical, papermaking, printing and dyeing.

2. Main technical indicators of WRKF, WREF, WZPF, WZCF (2F) series anti-corrosion thermocouples/resistors

Name	graduation mark	Temperature measurement range (℃)	Allowable deviation △ t (℃)
Nickel chromium nickel silicon thermocouple	K	Please refer to the specification table for details	± 2.5 or 0.75% t
Nickel chromium copper nickel thermocouple	E
platinum resistance thermometer	Pt100		±(0.3+0.005t)
Copper thermistor	Cu50	-50～150	±(0.3+6×10-3t)

3. Variety specifications

Model number		graduation mark	material	Measurement range ℃	Protective tube diameter (d) mm
WRKF－WRK2F	one hundred and thirty two hundred and thirty four hundred and thirty	K	F4	0~250	16+2
			Ti	0~500	sixteen
WREF －WRE2F	one hundred and thirty two hundred and thirty four hundred and thirty	E	F4	0~250	16+2
			Ti	0~500	sixteen
WZPF －WZP2F	one hundred and thirty two hundred and thirty four hundred and thirty	Pt100	F4	-200～250	16+2
			Ti	-200～500	sixteen
WZPF －WZP2F	one hundred and thirty-one two hundred and thirty-one four hundred and thirty-one		F4	-200～250	12+2
			Ti	-200～500	twelve
WZCF－	one hundred and thirty two hundred and thirty four hundred and thirty	Cu50	F4	-50～150	12+2
			Ti		twelve