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Pressure controlled valves 298 ASCO

2-way, 1/2 "-2", Normally open / closed, for pressure difference 0-40 bar

FEATURES:

• Ruggedly built valve, particularly recommended for use with steam, superheated
water, corrosive fluids
• High-performance, maintenance-free stuffi ng box, resistant to thermal shock
• Pressure can be applied to any port as needed by the process
• Anti-waterhammer design (fl uid entry at orifi ce 1), recommended for use with liquids
• Vacuum operation up to 10-2 mbar • Allowable backpressure: up to 40 bar
• Optical position indicator as standard
• Autoclavable valve for use at high ambient temperatures (up to 180°C)
• The valves satisfy Pressure Equipment Directive 97/23/EC, category 1 (DN > 32) or article 3.3 (DN ≤ 32)

Fluids (*)

DN15 - 25: air and gases group 1 and 2

DN32-50: air and gases group 2

All sizes: oil, liquids group 1 and 2, steam

Temperature range

-10… +250 °C

Pressure differencial

0 – 40 bar [1 bar = 100 kPa]

Maxim. operating pressure

40 bar (restrictions, see data sheet)

Ambient temperature

-25 °C… +180 °C

Maxim. viscosity

5000 cSt (mm2/s)

Pilot gas

Air

Max. pilot pressure

10 bar

Disc seal

Bronze, PTFE

Sales information

Wermundsen OÜ
Mustamäe tee 55
EE-10620 Tallinn, Estonia
Tel: (+372) 601 4202
wermundsen@wermundsen.ee

Product images

Manufacturer's homepage


Additional information

PDF icon e298.pdfPDF icon t298.pdf

With flange connection

DN

Pipe size

Flow factor

Kv

Pilot pressure

(bar)

Pressure differencial

Operator diameter

Model

1 ➞ 2

2 ➞ 1

FROM

ANSI 300

(mm)

(m3 / h)

(L / min.)

(m3 / h)

(L / min.)

min.

max.

(bar)

(mm)

NC, NORMALLY CLOSED

15

20

25

32

40

50

15

20

25

32

40

50

4,4

7,7

11,5

18

29

57

73

128

192

300

483

950

5

8,5

12

18

29

57

83

142

200

300

483

950

*

*

*

*

*

*

10

10

10

10

10

10

40

40

40

40

40

40

80

100

100

150

150

200

T298A001

T298A002

T298A003

T298A004

T298A005

T298A006

T298A013

T298A014

T298A015

T298A016

T298A017

T298A018

NO, NORMALLY OPEN

15

20

25

32

40

50

15

20

25

32

40

50

3,5

7,2

11

18

28,2

53

58

120

183

300

470

883

3,5

7

11

15

28,2

53

58

117

183

250

470

883

*

*

*

*

*

*

10

10

10

10

10

10

40

40

40

40

40

40

80

100

100

150

150

200

T298A007

T298A008

T298A009

T298A010

T298A011

T298A012

T298A019

T298A020

T298A021

T298A022

T298A023

T298A024

With threaded connection

NC, NORMALLY CLOSED

1/2

3/4

1

1 1/4

1 1/2

2

15

20

25

32

40

50

4,4

7,7

11,5

18

29

57

73

128

192

300

483

950

5

8,5

12

18

29

57

83

142

200

300

483

950

*

*

*

*

*

*

10

10

10

10

10

10

40

40

40

40

40

40

80

100

100

150

150

200

E298A001

E298A002

E298A003

E298A004

E298A005

E298A006

NO, NORMALLY OPEN

1/2

3/4

1

1 1/4

1 1/2

2

15

20

25

32

40

50

3,5

7,2

11

18

28,2

53

58

120

183

300

470

883

3,5

7

11

15

28,2

53

58

117

183

250

470

883

*

*

*

*

*

*

10

10

10

10

10

10

40

40

40

40

40

40

80

100

100

150

150

200

E298A007

E298A008

E298A009

E298A010

E298A011

E298A012

• Also available with welded connection

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