Stainless steel bimetal thermometer-Bimetal thermometer-Anhui Tiankang(group) Shares Co.,Ltd.

Stainless steel bimetal thermometer

Bimetal thermometer is a single needle thermometer that uses a spiral tube shaped bimetal sheet whic…

Description

Working principle of stainless steel bimetal thermometer

Bimetal thermometer is a single needle thermometer that uses a spiral tube shaped bimetal sheet which is fixed at one end and connected with a pointer needle at the other end. It rotates with the change of temperature and drives the pointer to rotate to indicate the temperature.

Stainless steel bimetal thermometer main technical characteristics

Temperature range: -80-600℃

Accuracy grade: 1.0/1.5,

Thermometer indication part :(according to the outer diameter of the thermometer dial) φ60, φ100, φ150mm.

Liner length: 100-2000mm.

Diameter of liner: φ6, φ10, (liner length 100-1250mm) φ12 (liner length 1250-2000mm)

Mounting part thread :M16X1.5; M27X2; G1/2; G3/4. The first class material of the liner and fixing bolt joint is 1Cr18Ni9Ti stainless steel, with pressure resistance of 6.4mpa.

Temperature measurement range

Measuring range ℃	Scope of application
Measuring range ℃	Industry, commerce	Laboratory, small scale
- 80 ~ + 40	Square root	Square root
- 40 ~ + 80	Square root	Square root
0 ~ 50	Square root	Square root
0 ~ 100	Square root	Square root
0 ~ 200	Square root	Square root
0 ~ 300	Square root	Square root
0 ~ 400	Square root	Square root
0 ~ 500	Square root	Square root
0 ~ 600	Square root	Square root

Overall dimensions

In the form of	A	B	C	E	L	d
The axial type	65	23	73	-	75 100 150 200 300 400 500 750 1000	Φ 6 Φ 8 Φ 10
	105	23	73	-
	155	23	73	-
The radial type	65	50	110	34
	105	50	110	34
	105	50	110	34
135 ° to type	105	23	85	-
135 ° to type	155	23	85	-
Universal type	105	23	178	120
Universal type	155	23	178	120

Selection of coding

Series no.	WSS					Bimetal thermometer
Nominal dial diameter		- 3				Φ 60
		4 -				Φ 100
		- 5				Φ 150
Dial form			0			Axial (straight)
			1			Radial (angular)
			2			135° direction (obtuse Angle)
			8			Universal (adjustable Angle type)
Mounting fixed form				0		No fixing device
				1		Movable external thread
				2		Movable internal thread
				3		Fixed screw thread
				4		Fixed flange
				5		Card sets of thread
				6		Card flange
Protect the form					-	ordinary
					W	protected
					F	Anti-corrosion type

Model and specification Bimetal thermometers, axial type

model	Temperature measurement range	Precision grade	Protective tube material	specifications		Mounting fixed form
model	Temperature measurement range	Precision grade	Protective tube material	D	L	Mounting fixed form
WSS-300	- 40 ~ + 80 - 80 ~ + 40 0 ~ 50 0 ~ 100 0 ~ 150 0 ~ 200 0 ~ 300 0 ~ 400 0 ~ 500 0 ~ 600	1.5	1Cr18Ni9Ti 304 316 316L Hartz C - 276	Φ 60	75 100 150 200 300 400 500 750 1000	No fixing device
WSS-400				Φ 100
WSS-500				Φ 150
WSS-301				Φ 60		Movable external thread
WSS-401				Φ 100
WSS-501				Φ 150
WSS-302				Φ 60		Movable internal thread
WSS-402				Φ 100
WSS-502				Φ 150
WSS-303				Φ 60		Fixed screw thread
WSS-403				Φ 100
WSS-503				Φ 150
WSS-304				Φ 60		Fixed flange
WSS-404				Φ 100
WSS-504				Φ 150
WSS-305				Φ 60		Card sets of thread
WSS-405				Φ 100
WSS-505				Φ 150
WSS-306				Φ 60
WSS-406				Φ 100		Card flange
WSS-506				Φ 150		Card flange

Radial bimetal thermometer

model	Temperature measurement range	Precision grade	Protective tube material	specifications		Mounting fixed form
model	Temperature measurement range	Precision grade	Protective tube material	D	L	Mounting fixed form
WSS-310	- 40 ~ + 80 0 ~ 50 0 ~ 100 0 ~ 150 0 ~ 200 0 ~ 300 0 ~ 400 0 ~ 500 0 ~ 600	1.5	1Cr18Ni9Ti 304 316 316L Hartz C - 276	Φ 60	75 100 150 200 300 400 500 750 1000	No fixing device
WSS-410				Φ 100
WSS-510				Φ 150
WSS-311				Φ 60		Movable external thread
WSS-411				Φ 100
WSS-511				Φ 150
WSS-312				Φ 60		Movable internal thread
WSS-412				Φ 100
WSS-512				Φ 150
WSS-313				Φ 60		Fixed screw thread
WSS-413				Φ 100
WSS-513				Φ 150
WSS-314				Φ 60		Fixed flange
WSS-414				Φ 100
WSS-514				Φ 150
WSS-315				Φ 60		Card sets of thread
WSS-415				Φ 100
WSS-515				Φ 150
WSS-316				Φ 60
WSS-416				Φ 100		Card flange
WSS-516				Φ 150		Card flange

Universal bimetal thermometer

model	Temperature measurement range	Precision grade	Protective tube material	specifications		Mounting fixed form
				D	L
WSS-480	- 40 ~ + 80 - 80 ~ + 40 0 ~ 50 0 ~ 100 0 ~ 150 0 ~ 200 0 ~ 300 0 ~ 400 0 ~ 500 0 ~ 600	1.5	1Cr18Ni9Ti 304 316 316L Hartz C - 276	Φ 100	75 100 150 200 300 400 500 750 1000	No fixing device
WSS-580				Φ 150
WSS-481				Φ 100		Movable external thread
WSS-581				Φ 150
WSS-482				Φ 100		Movable internal thread
WSS-582				Φ 150
WSS-483				Φ 100		Fixed screw thread
WSS-583				Φ 150
WSS-484				Φ 100		Fixed flange
WSS-584				Φ 150
WSS-485				Φ 100		Card sets of thread
WSS-585				Φ 150
WSS-486				Φ 100		Card flange
WSS-586				Φ 150

Bimetal thermometer 135° direction

model	Temperature measurement range	Precision grade	Protective tube material	specifications		Mounting fixed form
				D	L
WSS-420	0 ~ 50 0 ~ 100 0 ~ 150 0 ~ 200 0 ~ 300 0 ~ 400 0 ~ 500 0 ~ 600	1.5	1Cr18Ni9Ti 304 316 316L Hartz C - 276	Φ 100	75 100 150 200 300 400 500 750 1000	No fixing device
WSS-520				Φ 150
WSS-421				Φ 100		Movable external thread
WSS-521				Φ 150
WSS-422				Φ 100		Movable internal thread
WSS-522				Φ 150
WSS-423				Φ 100		Fixed screw thread
WSS-523				Φ 150
WSS-424				Φ 100		Fixed flange
WSS-524				Φ 150
WSS-425				Φ 100		Card sets of thread
WSS-525				Φ 150
WSS-426				Φ 100		Card flange
WSS-526				Φ 150

Installation requirements

For the installation of bimetal thermometer, attention should be paid to the accuracy of temperature measurement, safety and easy maintenance, and does not affect the operation and production operation of equipment, to meet the above requirements, in the selection of the installation site and insertion depth of the thermal resistance should pay attention to the following points:

(1) In order to ensure sufficient heat exchange between the measuring end of the thermal resistance and the measured medium, the location of the measuring point should be reasonably selected, and the thermal resistance should be avoided near the dead Angle of the valve, elbow, pipe and equipment.

(2) Thermal resistance with protective sleeve has heat transfer and heat dissipation loss. In order to reduce measurement error, thermocouple and thermal resistance should have sufficient insertion depth:

A. For the thermal resistance measuring the temperature of the fluid in the center of the pipe, the measuring end should generally be inserted into the center of the pipe (vertical installation or inclined installation). If the pipe diameter of the flow body being measured is 200mm, the insertion depth of the thermal resistance should be selected as 100mm;

B. For the temperature measurement of high temperature, high pressure and high-speed fluid (such as the temperature of main steam), in order to reduce the resistance of the protective sleeve to the fluid and prevent the fracture of the protective sleeve under the action of the fluid, shallow insertion of the protective tube or the thermal resistance of the hot sleeve can be adopted. The depth of the thermal resistance protection sleeve inserted into the main steam pipe should not be less than 75mm; The standard insertion depth of hot sleeve thermal resistance is 100mm;

C. If it is necessary to measure the temperature of flue gas in the flue, even though the flue diameter is 4m and the insertion depth of thermal resistance is 1 m;

D. When the measuring element is inserted into a depth of more than 1m, it should be installed vertically as far as possible, or support frame and protection casing should be added.

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