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bimetallic thermometers
Product Model:WSS Series

Summary

  The bimetallic thermometer is a on site measurement instrument suitable for measuring middle and high temperature, and can be used to measure directly the temperature of gasses and liquids. Compared with glass thermometer, it is featured with no mercury harmness, distinct reading, strong and durable and other advantages. Our company produces multipurpose bimetallic thermometers. The types and models are complete. The quality is high and reliable. It can be used widely in industry, agriculture, national defence and scientific research etc.

Structure features and working principle

  Bimetallic thermometer (hereafter referred to as simply thermometer) is a coiling thermal bimetal temperature sensor. One end is fixed inside the protective sleeve (fixed end) and another end (free end) is connected at a fine axle. The axle end is equipped with a needle. When the temperature changes, the free end of the temperature sensor rotates, hereupon, the fine axle moves the needle. The dial plate indicates the temperature change. The steering drive mechanism in the straight meter moves the needle. The meter housing is made of steel plate, cast aluminium alloy and stainless steel. For the head of the adjustable angle thermometer, by means of corrugated pipe, angle machenism and other parts, the angle can be adjusted freely from the angle type to straight type, or from the straight type to angle type. The electric contact bimetallic thermometer is added with electrical contacts, adjusting devices, outlet box etc. When the temperature fluctuates, at the moment when the needle (moving contact) and the pre-established temperature control contact (upper limit or lower limit) are connected or disconnected, the relay or the contactor in the control circuit moves, thereby, realizing automatic temperature control or producing alarm

 
 
WSS Series bimetallic thermometers   Main technical parameters
((1)Accuracy class: 1.5;
(2) Time constant:Jacket pipe diameter d=6mm <30s;
d=8、10、12mm <40s;
(3) The nominal pressure of jacket pipe:
6.4 MPa(Static pressure);
(4)Jacket pipe material:1Cr18Ni9Ti.
 

 

Table 1

Type

Model

Dial plate nominal
diameter(mm)

Measuring
range(℃)

Value of
division(℃)

Insert length
(mm)

Jacket pipe
diameter(mm)

Installation
thread(mm)

Housing
material

Angle
type

WSS-301
WSS-302

60

-80~+40
-40~+80

2

75
100
150
200
250
300
Note:311,路易十三赌场_全新帝豪赌场_瑞丰赌场网站:0~50℃,L=75 can't be made

6

Movable
external
thread
M16×1.5
Movable
internal
thread
M16×1.5

Steel plate

WSS-301A
WSS-302A

0~50

1

Cast aluminum
alloy

0~100
0~150

2

Straight
type

WSS-311A
WSS-312A

0~200
0~300

5

Angle
type

WSS-401
WSS-402

100

-80~+40
-40~+80

2

75
100
150
200
250
300
400
500
750
1000
1250
1500
1750
2000

8
10
12

Movable
external
thread
M16×1.5
Movable
internal
thread
M16×1.5

Steel plate

WSS-401A
WSS-402A

Cast aluminum
alloy

Straight
type

WSS-411
WSS-412

Steel plate

WSS-411A
WSS-412A

Cast aluminum
alloy

Angle
type

WSS-501
WSS-502

150

0~50

1

Steel plate

WSS-501A
WSS-502A

0~100
0~150

2

Cast aluminum
alloy

Straight
type

WSS-511
WSS-512

0~200
0~300

5

Steel plate

WSS-511A
WSS-512A

Cast aluminum
alloy

Adjustable
angle type

WSS-463

100

0~400
0~500

10

200
250
300
400
500

6

Fixed thread
R1/2

Stainless
steel plate

WSS-461
WSS-462

75
100
150
200
250
300
400
500
750
1000
1250
1500
1750
2000

10
12

Movable
external
thread
M16×1.5
Movable
internal
thread
M16×1.5

Stainless
steel plate

WSS-461A
WSS-462A

Cast
aluminum
alloy

Note:
A Jacket pipe material: 1Crl8Ni9Ti, if other material is required, that shall be noted.
B Other installation thread required needs to be negotiated separately.
C The flange standards and specifications shall be provided in the flanged connection.
D The nominal diameter of the thermometer dial scale is Ф100. The insert length for Ф150 is:
1) When the jacket diameter is Ф8, the insert length range is 75~500mm;
2) When the jacket diameter is Ф10, the insert length range is 75~1000mm;
3) When the jacket diameter isФ12,the insert length range is 1250~2000mm.
E The requirement on other jacket diameters shall be negotiated separately.



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