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ZZWP-16C cast steel self operated temperature control valve DN20-DN200

price:USD$9580.00
discount 70% in 2018-10-21 to 2018-10-23
price: USD$ 6706.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Overview of self operated temperature control valve

ZZWP self operated temperature control valve is composed of two parts: temperature sensor and control valve. It is a kind of energy-saving product which needs no external energy and adjusts automatically by the temperature change of the controlled medium. The product is suitable for the automatic control of temperature in various heat exchangers with various gases, steam, hot water, oil and so on. It has the advantages of wide temperature setting range, easy adjustment, continuous temperature setting, over temperature protection, convenient temperature setting, etc.. Widely used in urban heating, heating systems and power, oil, metallurgy, pharmaceutical, boiler and other industrial sectors.

Product model of self operated temperature control valve

category

Model

category

Model

Single seat heating regulator

ZZWP-16~40B

Single seat cooling regulator

ZZWP-16~40B

Two seat heating regulator

ZZWN-16~40B

Two seat cooling regulator

ZZWN-16~40B

Sleeve heating control valve

ZZWM-16~40B

Sleeve cooling control valve

ZZWM-16~40B

 

 

Spool structure type

Main technical parameters of self operated temperature control valve

Main technical parameters of 1. control valve

Nominal diameter DN (mm)

20

25

32

40

50

65

80

100

125

150

Rated flow coefficient Kv

Single seat and sleeve

7

11

20

30

48

75

120

190

300

480

Two seater

 

12

22

33

53

83

132

209

330

528

Allowable pressure difference (MPa)

1.6

1.0

0.5

Nominal pressure (MPa)

 

Inherent flow characteristics

Quick opening

Working temperature centigrade

≤300

Suitable medium

Gas, steam, low viscosity liquids

Flange size and type

PN10, 16, GB9113-88 convex PN40 concave
Or according to the user's requirements, the selection of other standard types of flanges (such as: ANSI, JIS, DIN and other standards)

Structural length

According to GB12221-89 standard

1. Main technical parameters of control valve

Sensor type

T01

T02

Temperature setting range centigrade

0~70 50~120 100~170 150~220

Temperature transfer coefficient (mm/ C)

0.8

Time response constant s

120

Over temperature protection temperature

Setting the upper limit of temperature range +50

Installation joint

G1"

Capillary length m

3 5 8

Sensor diameter (mm)

Temperature package: 25 sheath: 28

Warm pack material

brass

 

 

Main performance index of self operated temperature control valve

Control accuracy%

±15

Allowable discharge
Leakage

Hard seal (L/H)

Single seat (IV): less than 10-4Rated valve capacity: two seater, sleeve (grade II), = 5 * 10-3Rated capacity of X valve

Soft seal
(ml/min)

DN(mm)

20

25

32

40

50

65

80

100

125

150

200

0.15

0.3

0.45

0.6

0.9

1.7

4.0

6.75

Self operated temperature control valve can be equipped with accessories

Heat sink, manual device, etc..

Size and weight of self operated temperature control valve

Nominal diameter (DN)

20

25

32

40

50

65

80

100

125

150

L

150

160

180

200

230

290

310

350

400

480

H

500

540

580

640

700

750

820

950

L1

430

630

L2

350

d

25 (sheath diameter 28)

Weight (Kg)

8

10

13

15

18

30

35

60

75

85

 

 

Relationship between medium and temperature of self operated temperature control valve

body material

nominal
pressure
(MPa)

Medium temperature and temperature

≤150

≤200

≤250

≤300

≤350

≤400

≤425

≤450

Maximum operating pressure (MPa)

HT200

1.0

1.0

 

 

 

 

 

 

 

1.6

1.6

1.5

 

 

 

 

 

 

ZG230-450

1.6

1.57

1.52

1.44

1.28

1.12

0.88

0.72

 

ZG1Cr18Ni9Ti

1.6

1.6

1.6

1.4

1.25

1.1

1.0

0.9

0.75

ZG0Cr18Ni12Mo2Ti

4.0

4.0

4.0

3.6

3.2

2.8

2.5

2.2

1.9

6.4

6.4

6.4

5.6

5.0

4.5

4.0

3.6

3.0

 

 

Main parts and recommended temperature range of self operated temperature control valve

Part name

Material Science

temperature range

Valve body and valve cover

HT200

-20~200℃

ZG230-450

-40~450℃

ZG1Cr18Ni9Ti

-250~550℃

ZG0Cr18Ni12Mo2Ti

-250~550℃

Valve core and valve seat

1Cr18Ni9Ti

-250~550℃

0Cr18Ni12Mo2Ti

-250~550℃

(reinforced) PTFE

-20~200℃

Welding division Stellite alloys

-250~550℃

Pressure balance element

corrugated pipe

18Ni12Mo2Ti

-160~300℃

Spring

18Ni12Mo2Ti

-160~250℃