Enhanced tubular armored thermocouple and thermal resistance - Thermocouple - sensor - Chongqing Instrument Materials Research Institute

In some special circumstances, such as oil, metallurgy, power plants, fluid measurement and so on, need a thermometer to have heat resistance, physical and chemical properties of stability, thermal shock resistance, anti-erosion and other properties at high temperature, enhanced armored thermocouple and thermal resistance with metal protection tube are developed, characterized by high mechanical strength, strong slag resistance, high temperature resistance, anti-pressure, anti-chemical corrosion and thermal shock resistance.
Enhanced tubular sheathed thermocouple, thermal resistance of the protection tube type commonly used are as follows:

● Fixed flange type protection tube
Fixed flange type protection tube shape and standard size

Shape	D	d	l(max)	T
	φ9	φ4	80	t≤15 T＝35 t＞15 T＝t＋20
	φ10	φ5	100
	φ11	φ6	300
	φ12	φ7	400
	φ15~φ17	φ8~φ10	600
	φ22~φ26	φ11~φ16	1000
	φ12	φ9	2000
	φ16	φ12
	φ20	φ15

● Fixed thread type protection tube

Fixed thread type protection tube shape and standard size

Shape	Fixed thread diameter and mark				S	T	HEX	φ
Shape	mark	normal thread	mark	tube thread	S	T	HEX	φ
	M1	M20×1.5	G1	ZG1/2"	16	20	27×31.2
	M2	M27×2	G2	ZG3/4"	20	20	32×36.9
	M3	M33×2	G3	ZG1"	23	20	38×43.9
	M1	M20×1.5	G1	ZG1/2"	16	20	27×31.2	18
	M2	M27×2	G2	ZG3/4"	20	20	32×36.9	24
	M3	M33×2	G3	ZG1"	23	20	38×43.9	29
		－	－	－	－	－	－	－
	M2	M27×2	G2	ZG3/4"	20	－	－	28
	M3	M33×2	G3	ZG1"	23	－	－	34
		－		－		－	－	28
		－		－		－	－	34
	M1	M20×1.5	G1	ZG1/2"	16	20	27×31.2
	M2	M27×2	G2	ZG3/4"	20	20	32×36.9
	M3	M33×2	G3	ZG1"	23	20	38×43.9

D	d	L(max)	l
φ9	φ4	80	According to user requirements
φ10	φ5	100
φ11	φ6	300
φ12	φ7	400
φ15~φ17	φ8~φ10	600
φ22~φ26	φ11~φ16	1000

D	d	l(max)
φ12	φ9	2000
φ16	φ12
φ20	φ15