Bimetallic thermometers are suitable for low temperature onsite inspection. It can directly measure the temperature of liquids, steam, gases and has non mercury harm and it has clear indication, durable.
This instrument is made completely from stainless steel and has excellent waterproof, and corrosion protection quality, widely used in petrol chemical purification textile food industry.

Serial code：

Specification：

Model	Nominal diameter D (mm)	Scale range ℃	Graduation mark ℃	Insertion length L (mm)	Protecting pipe length d (mm)	Installation screw thread mm
WSS-3□	60	0-50 0-100 0-150 0-200 0-300 0-400 0-500	1 2 2 5 5 10 10	75;100; 150;200; 250;300; 400;500	6	M16×1.5
WSS-4□ WSSX-4□	100				10	M27×2
WSS-5□	150				10	M27×2

Accuracy：±1.5%
Time constant: not exceeding 40s
The maximum pressure of protecting pipe undergoing： 6.3MPa
Contact rated power： 20VA（no inductance load）
Max. operational current：1A
Continuous current：0.6A
Max. operational voltage ：380VAC，220VDC
Design： JB/T8803-1998

Install:

Dimension:

WSSX schematic diagram:
　

Model	Dimension mm
Model	D	H	L	L₁	L₂	L₃	M
WSS-30□	60	/	75;100; 150;200； 250;300； 400；500；	62	12		16×1.5
WSS-31□		46		60
WSS-32□		44		55
WSS-40□	100	/		72	16		27×2
WSS-41□		46		94
WSS-42□		44		82
WSS-48□		58		64
WSS-50□	150	/		72	16
WSS-51□		46		112
WSS-52□		44		82
WSS-58□		58		64
WSSX-401	100	/		72	16	42	27×2
WSSX-411		46		94
WSSX-421		44		82
WSSX-481		58		64

Ordering：

During installation and operation the protecting pipe must not be bent or molded, and must have at least 100mm inserted. When measuring high flow rate or highly corrosive compounds, additional protecting casing pipe is required.
Name/Model/Temperature range/Protecting pipe's length/Connection size