Main parts and materials

Parts name

Material

Body, Cover, Guide sleeve

Nodular iron

Stem, Seal ring

2Cr13

Spring

50CrVA

Funtion and specification

Type

PN

PS

The deflectin value of opening pressure

Discharging pressure

Restore pressure

Sealing pressure

Suitable medium

Fitting temprature

Ratio of discharging volune

(MPa)

1.6

2.4

0.1-0.16

0.1

0.086 - 0.114

≤0.11

³0.075

³0.009

≤250(°C)

0.16

0.16-0.25

0.16

0.146 - 0.174

≤0.176

³0.135

³0.144

0.25-0.4

0.25

0.236 - 0.264

≤0.276

³0.22

³0.225

0.4-0.6

0.4

0.386 - 0.414

≤0.44

³0.36

³0.36

0.6-1.0

0.6

0.582 - 0.618

≤0.66

³0.54

³0.54

1.0-1.3

1.0

0.97 - 1.03

≤1.1

³0.9

³0.9

1.3-1.6

1.3

1.261 - 1.339

≤1.43

³1.17

³1.17

1.6

1.552 - 1.648

≤1.76

³1.576

³1.44

Outling and connect measurement

Type

DN(mm

Measurement(mm)

d0

D

D1

D2

b

f

Z-d

DN’

D^’

D1’

D2’

b’

f’

Z’-d’

L

L’

H

40

32

150

110

88

18

3

4-17.5

40

150

110

88

18

3

4-17.5

120

110

423

50

40

165

125

102

20

3

4-17.5

50

165

125

102

20

3

4-17.5

135

120

510

80

65

200

160

133

22

3

8-17.5

80

200

160

133

22

3

8-17.5

170

135

607

100

80

220

180

158

24

3

8-17.5

100

220

180

158

24

3

8-17.5

205

160

738