XZ81X(PN25) Grooved open stem soft-sealed gate valve

order number

part

standard layout

Optional configuration

1

valve body

Ductile cast iron QT450-10

2

Elastic wedge-shaped gate

Ductile iron QT450-10 + EPDM rubber

3

valve stem

Stainless steel 420

Stainless steel 304/316/431; Aluminum bronze

4

Valve cover sealing gasket

EPDM

acrylonitrile-butadiene rubber

5

Valve cover

Ductile cast iron QT450-10

6

filling

EPDM

7

support

Ductile cast iron QT450-10

8

Pressing Die

Brass HPb59-1

9

Cover lid

Ductile cast iron QT450-10

10

valve-stem nut

Brass HPb59-1

11

hand wheel

Ductile cast iron QT450-10

12

Gasket

Brass HPb59-1

13

nut

Zinc-coated steel

Stainless steel 304/316

14

double-screw bolt

Zinc-coated steel

Stainless steel 304/316

15

flat gasket

Zinc-coated steel

Stainless steel 304/316

16

Internal hex bolt

Zinc-coated steel

Stainless steel 304/316

17

O molding ring

acrylonitrile-butadiene rubber

EPDM

18

plug

tin bronze

Nominal diameter DN

nominal pressure

size （mm）

Inch

mm

PN

L

H1 (Off)

H2 (Open)

D

d

A

B

2"

50

25

178

348

400

60.3

57.15

15.88

7.92

2.5"

65

25

190

373

440

76.1

72.26

15.88

7.92

3"

80

25

203

408

490

88.9

84.94

15.88

7.92

4"

100

25

229

471

573

114.3

110.08

15.88

7.92

5"

125

25

254

541

665

139.7

135.48

15.88

7.92

6"

150

25

267

601

755

165.1

160.90

15.88

7.92

8"

200

25

292

774

975

219.1

214.40

19.05

11.13

10"

250

25

330

1029

1283

273.0

268.28

19.05

12.70

12"

300

25

356

1065

1370

323.9

318.29

19.05

12.70