Description

Self-operated temperature control valves are mainly used to regulate the discharge temperature of thermal energy in industrial heating systems. When the fluid temperature drops, the flow rate in the channel increases; the fluid only flows when its temperature is lower than the shutdown temperature (set temperature); this maintains sufficient fluid flow rate, constant pressure and temperature, and reduces heat loss, thereby improving the utilization of thermal energy.

The shutdown temperature is set by the factory and can be adjusted within a variable temperature range at the usage site.

When the fluid temperature drops, the flow holes open, allowing more fluid to pass through. When the fluid temperature rises, the regulator will close the flow holes more, thereby reducing the flow of fluid passing through.

SWT Self-operated temperature control valve：

Self-powered structure, capable of achieving temperature regulation without external energy supply
Compact structure, saving space
Bimetallic sheet structure, with long service life
Can be installed at any position on the return pipeline (preferably with the cover facing downwards)
Simple components, convenient and quick for on-site maintenance
External temperature regulation device, facilitating online temperature adjustment
Capable of achieving long-term maintenance-free online operation

Adjustable shutdown temperature range (℃)

Model

DN15(NPS1/2)

DN20(NPS3/4)
DN25(NPS 1)

DN40

SWT-1

30-140

30-120

40-130

SWT-2

145-160

125-160

135-160

NO.

Name

Body

Seat

Gasket

Bolt

Core

Spring

Bimetallic regulator disks

Cover

Forked adjusting piece

Temperature scale

Adjusting handle

Body

Cover

Seat

Spring

Core

Bolt

A105
F304
LF2

WCB
CF8
LCB

304

A193 B7
A193 B8
A320 L7

Temp °C

Class150

Class300

A105
(WCB)

LF2
(LCB)

F11
(WC6)

F304
(CF8)

F316L
(CF3M)

A105
(WCB)

LF2
(LCB)

F11
(WC6)

F304
(CF8)

F316L
(CF3M)

-196 ~ -47

–

1.90

–

4.96

-46 ~ -30

–

1.96

–

1.90

–

5.11

–

4.96

-29 ~ 38

1.96

1.98

1.90

5.11

5.17

4.96

1.92

1.95

1.83

1.84

5.01

5.17

4.78

4.81

100

1.77

1.57

1.62

4.66

5.15

4.09

4.22

150

1.58

1.42

1.48

4.51

4.97

3.7

3.85

200

1.38

1.32

1.37

4.38

4.80

3.45

3.57

250

1.21

4.19

4.63

3.25

3.34

300

1.02

3.98

4.29

3.09

3.16

325

0.93

3.87

4.14

3.02

3.09

350 (343)

0.84

3.76

4.03

2.96

3.03

375

0.74

–

0.74

3.64

–

3.89

2.9

2.99

400

0.65

–

0.65

3.47

–

3.65

2.84

2.94

Temp℃

PN16

PN25

A105
(WCB)

LF2
(LCB)

F11
(WC6)

F304
(CF8)

F316L
(CF3M)

A105
(WCB)

LF2
(LCB)

F11
(WC6)

F304
(CF8)

F316L
(CF3M)

-196 ~ -47

–

1.57

–

2.45

-46 ~ -30

–

1.61

–

1.57

–

2.52

–

2.45

-29 ~ 38

1.61

1.63

1.57

2.52

2.55

2.45

1.58

1.63

1.51

1.52

2.47

2.55

2.36

2.37

100

1.46

1.63

1.29

1.33

2.29

2.54

2.02

2.08

150

1.43

1.57

1.17

1.22

2.23

2.45

1.83

1.9

200

1.38

1.51

1.09

1.13

2.16

2.37

1.70

1.76

250

1.32

1.46

1.03

1.05

2.06

2.28

1.60

1.65

300

1.22

1.35

0.97

1.00

1.91

2.11

1.51

1.56

350(343)

1.17

1.27

0.93

0.96

1.82

1.98

1.46

1.5

375

1.15

–

1.23

0.92

0.94

1.80

–

1.91

1.44

1.47

400

1.09

–

1.15

0.90

0.93

1.70

–

1.80

1.41

1.45

Temp°C

PN40

A105
(WCB)

LF2
(LCB)

F11
(WC6)

F304
(CF8)

F316L
(CF3M)

-196 ~ -47

–

3.92

-46 ~ -30

–

4.03

–

3.92

-29 ~ 38

4.03

4.08

3.92

3.95

4.08

3.78

3.8

100

3.66

4.06

3.23

3.33

150

3.57

3.93

2.93

3.04

200

3.46

3.79

2.72

2.82

250

3.29

3.64

2.56

2.63

300

3.06

3.38

2.42

2.50

350(343)

2.92

3.18

2.33

2.40

375

2.88

–

3.06

2.30

2.36

400

2.72

–

2.89

2.26

2.32

Nominal Size

Code Name

DN15

DN20

DN25

DN40

Flanges(PN16-PN40)

L (mm)

150

160

200

Flanges(Class150)

L (mm)

150

160

216

Flanges(Class300)

L (mm)

150

160

230

L (mm)

130

L (mm)

200

250

Height

H1 (mm)

195

220

Height

H2 (mm)

Weight

(kg)

5.9

6.7

7.2

13.2

Product Categories

Self-operated Temperature Control Valve