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model

Nominal pressure

Strength test (MPa)

Seal test (MPa)

Applicable temperature ℃

Suitable media

       J61Y-250I J961Y -250I

25.

37.5

27.5

≤550

Water, steam, oil

       J61Y-320I J961Y -320I

32.0

48.0

35.2

       J61Y-P54100V J961Y -P54100V

P54100V

30.0

11.0

≤540

       J61Y-P64140V J961Y -P64140V

P54100V

42.0

15.4

       J61Y-P57170V J961Y -P67170V

P57170V

63.0

18.7

≤570

Body

cap

Bracket

Valve stem

Seal ring

filler

Stem nut

WCB 
25

WCB 
25

WCB 
25

2Cr13

Enhance flexible graphite

Enhance flexible graphite

ZCu1A110Fe3

WC6 
12Cr1MoV

WC6 
12Cr1MoV

WC6 
25

38CrMoV 
20Cr2MoV

WC9 
12Cr1MoV

WC9 
12Cr1MoV

WC9 
25

38CrMoV 
20Cr2MoV

model

DN

d

L

L1

L2

H

Denso models 

J961Y-250

20

19

150

363

197

576

DZW15

25

22

180

363

197

590

DZW15

32

26

180

363

197

606

DZW15

40

36

250

363

197

722

DZW20

50

42

250

363

197

722

DZW30

65

56

340

473

277

1060

DZW45

80

80

390

526

283

1280

DZW90

100

84

480

526

283

1290

DZW90

J961Y-320

20

19

150

363

197

276

DZW15

25

22

180

363

197

590

DZW15

32

26

180

363

197

606

DZW15

40

36

250

363

197

722

DZW20

50

42

250

363

197

722

DZW30

65

60

470

526

283

1140

DZW90

80

80

570

526

283

1350

DZW120

100

96

660

554

609

1500

DZW180

J961Y-P57170V

20

19

150

363

197

576

DZW15

25

22

180

363

197

590

DZW15

32

26

180

363

197

606

DZWl5

40

36

250

363

197

722

DZW20

50

42

250

363

197

722

DZW30

65

60

762

526

283

1543

DZW90

80

74

864

526

283

1790

DZWl20

100

88

965

554

309

1890

DZWl80