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695

Diaphragm Valve,Metal

ConstructionThe GEM 695 pneumatically operated 2/2 way diaphragm valvehas a low maintenance membrane actuator which can becontrolled by inert gases.Normally Closed, Normally Open and Double Acting controlfunctions are available.

Features Suitable for inert and corrosive* liquid and gaseous media Insensitive to particulate media Valve body and diaphragm available in various materials

and designs Various connections available

Surface finishes down to 0.25 m, electro-polishedAdvantages Optional flow direction, will seal in either flow direction

up to full working pressure Optional mounting position Weight saving design Optional accessories:

- Stroke limiter- Optical position indicator- Manual override- Pilot valve with manual override- Electrical position indicator

For actuator dimensions control function 2 and 3 see page 2.

Actuator dimensions - Control function 1 (mm)

DNDiaphragm

size B A A 1

15 - 25

32 - 40

50

25

40

50

125

155

210

131

177

215

47

75

90

* see information on working medium on page 2

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Working medium

The valve will seal against flow in either direction up to

full working pressure. (All pressures are given as gaugepressures).

Working temperature max. 80C(depending on the application)

Filling volume (control function 1)DN 15-25 0.15 Nl

DN 32-40 0.35 Nl

DN 50 1.10 Nl

Control functions 2 + 3

The values shown relate to control function 2 ( with lifting spring)

For control function 3 (without lifting spring) control pressure isapprox. 1 bar lower.

Control mediumMax. perm. temperature of control medium 40C

Nominalsize

Diaphragmsize

Controlfunction 3

Controlfunction 2

Controlfunction 1

(mm) (m3/h) (kg)EPDM/FPMbar

PTFEbar

(bar)For values see diagram

(bar)For values see diagram

Operating pressure withdiaphragm material

Controlpressure

(bar)

Controlpressure

Controlpressure

Weightc. f. 1Kv value *

15

2025

32

40

50

25

2525

40

40

50

0 - 10

0 - 100 - 10

0 - 10

0 - 10

0 - 10

0 - 6

0 - 60 - 6

0 - 6

0 - 6

0 - 6

5.5 - 7.0

5.5 - 7.0

5.5 - 7.0

max. 5.5

max. 5.5

max. 5.0

max. 5.5

max. 5.5

max. 5.0

2.3

2.42.7

5.9

6.3

10.1

10.5

13.027.0

43.0

50.0

64.0

All pressures are gauge pressures. Wopking pressure values were determined with static working pressure applied on one side of a closedvalve. Sealing at the valve seat and atmospheric sealing is ensured for the given values.Information on working pressures applied on both sides and for high purity media upon request.* Given Kv values are valid for ISO valve body connection, EPDM diaphragm material.Kv values determined with p1 = 6 bar, EPDM diaphragm material.KV values shown are valid for unlined valve bodies. KV values for lined valve bodies are lower depending on the lining.

Technical data

Corrosive, inert, gaseous and liquid media whichhave no negative impact on the physical andchemical properties of the body and diaphragmmaterials.

Actuator dimensions control function 2 + 3 (mm)Diaphragm

sizeDN B A A 1 A 2

25

40

50

15 - 25

32 - 40

50

125

155

210

98

135

164

47

75

90

27

27

29

Controlpressureinbar

Working pressure in bar

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* Material complies with FDA requirements

The combination of PFA or PTFE lining with 5E diaphragms isonly conditionally suitable for gaseous media.If low seat leakage rates are required for gaseous media, othercombinations are preferable.

2/2 way D

Body configuration Code

Control function Code

Normally closed 1Normally open 2

Double acting 3

1500

1

14

8

1

25

D

Type

Nominal size (mm)

Body configuration (code)

Connection (code)

Valve body material (code)

Diaphragm material (code)

Control function (code)

Surface finish (code)

Order example

695

695 25 D 1 8 14 1 1500

Threaded connectionsThreaded sockets DIN ISO 228 1Threaded spigots DIN 11851 6One side threaded spigot, other sidecone spigot with union nut, DIN 11851 62Aseptic unions upon request

Order data

Valve body surface finish, internal contour Code

*Ra 6.3 m blasted internal/external 1500*Ra 6.3 m electropolished internal/external 1509*Ra 0.8 m mechanically polished internal, blasted external 1502*Ra 0.8 m electropolished internal/external 1503*Ra 0.6 m mechanically polished internal, blasted external 1507*Ra 0.6 m electropolished internal/external 1508*Ra 0.4 m mechanically polished internal, blasted external 1536*Ra 0.4 m electropolished internal/external 1537*Ra 0.25 m mechanically polished internal, blasted external 1527*Ra 0.25 m electropolished internal/external 1516

* Ra acc. to DIN 4768; at defined reference points

Connections CodeButt weld spigotsSpigots DIN 0Spigots DIN 11850, Series 1 16Spigots DIN 11850, Series 2 17

Spigots DIN 11850, Series 3 18Spigots JIS-G 3447 35Spigots JIS-G 3459 36Spigots SMS 3008 37Spigots BS 4825, Part 1 55Spigots ASME BPE 59Spigots EN ISO 1127 60

ClampsClamp ASME BPE for pipe ASME BPE,short design 80Clamp following ASME BPE for pipeEN ISO 1127, length EN 558-1 series 7 82Clamp ASME BPE for pipe ASME BPE lengthEN 558-1, series 7 88

Clamp DIN 32676 for pipe DIN 11850 lengthEN 558-1, series 7 8A Clamp SMS 3017 for pipe SMS 3008 lengthEN 558-1, series 7 8E

For overview of available valve bodies for GEM 695 see page 6

FlangesFlanges EN 1092-2 /PN16 / form B 8

(ex DIN 2501 / PN16 / form Clength EN 558-1, series 1ISO 5752, basic series 1 (ex DIN 3202-1,series F1)Flanges ANSI class 125/150 RF 38length MSS SP-88Flanges ANSI class 125/150 RF 39length EN 558-2, series 1ISO 5752, basic series 1 (ex DIN 3202-1,series F1)

Valve body material CodeEN-GJL-250 GG 25 8

EN-GJS-400-18-LT GGG 40.3 (SG iron) 17PFA lined

EN-GJS-400-18-LT GGG 40.3 (SG iron) 18PP lined

1.4408 Investment casting 39with PFA lining

1.4435 (ASTM A 351 CF3M) Investment casting* 34

1.4408 Cast stainless steel 37

1.4435 (316 L) Forged body 40

Diaphragm material Code

EPDM 12*

FPM 4

EPDM 13*

EPDM 14

PTFE/EPDM convex PTFE loose 5E*

PTFE/FPM convex PTFE loose 5F

PTFE/EPDM PTFE laminated 52*

* Material equivalency 316 L

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*

*

ISO DIN DIN 11850Series 1 Series 2 Series 3

SMS3008

BS O.D.4825

ASME/BPE

JIS-G3459

JIS-G3447

Code 55 Code 59 Code 36 Code 35Code 0 Code 16 Code 17 Code 18 Code 37Code 60

d x s d x s d x s d x s d x s d x s d x s d x s d x s d x sDN NPS MG

15

20

25

3240

50

1/2

3/4

1

1 1/41 1/2

2

25

25

25

4040

50

120

120

120

153153

173

13

16

19

2426

32

19

19

19

2626

32

25

25

25

2525

30

21.3 x 1.6

26.9 x 1.6

33.7 x 2.0

42.4 x 2.048.3 x 2.0

60.3 x 2.0

18 x 1.5

22 x 1.5

28 x 1.5

34 x 1.540 x 1.5

52 x 1.5

18 x 1.0

22 x 1.0

28 x 1.0

34 x 1.040 x 1.0

52 x 1.0

19 x 1.5

23 x 1.5

29 x 1.5

35 x 1.541 x 1.5

53 x 1.5

20 x 2.0

24 x 2.0

30 x 2.0

36 x 2.042 x 2.0

54 x 2.0

12.70 x 1.2

19.05 x 1.2

-

--

-

12.70 x 1.65

19.05 x 1.65

25.40 x 1.65

-

38.10 x 1.65

50.80 x 1.65

21.7 x 2.10

27.2 x 2.10

34.0 x 2.80

42.7 x 2.80

48.6 x 2.80

60.5 x 2.80

40

40

40

6875

90

13.5

13.5

13.5

13.513.5

13.5

-

-

25.0 x 1.2

33.7 x 1.238.0 x 1.2

51.0 x 1.2

-

-

25.4 x 1.20

31.8 x 1.20

38.1 x 1.20

50.8 x 1.50

*f *g L H1* H1**LS (min.)

Dimensions in mm

valid for investment cast design ** valid for forged designMG = diaphragm size

Body dimensions - Butt weld spigots

Body dimensions - Threaded sockets DIN ISO Code 1, material code 8, 37 (mm)

DNDiaphragm

size G H H 1 t LSW

Material code 8 Material code 37Number of wrench surfaces

15

20

25

3240

50

25

25

25

4040

50

1/2

3/4

1

1 1

2

30

33

37

5052

69

16

17

17

2525

34

9

10

13

1618

18

85

85

110

120140

165

27

32

41

5055

70

32

41

46

5565

75

6

6

6

88

8

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Code 6 Code 62

Body dimensions - Flanges Code 8 (mm)

8 34 17, 18, 39

Material code

Code 8 Code 38 Code 39

Connection code

DN L L LNPS MG H H HH 1 H 1 H 1 D D D d d d k k kNo. of

bolt holes

No. of

bolt holes

No. of

bolt holes

15

20

25

32

40

50

33

35

38

50

54

66

19

19

19

28

28

35

30

36

43

52

57

69

13

16

19

24

26

32

32

38

43

55

64

75

18

21

24

30

34

40

130*

150

160

180

200

230

95

105

115

140

150

165

14

14

14

18

18

18

65

75

85

100

110

125

4

4

4

4

4

4

-

146

146

-

175

200

-

98.5

108

-

127

152.4

-

15.7

15.7

-

15.7

19.1

-

69.9

79.2

-

98.6

120.7

-

4

4

-

4

4

130*

150

160

180

200

230

88.9

98.5

108

117.3

127

152.4

15.7

15.7

15.7

15.7

15.7

19.1

60.5

69.9

79.2

88.9

98.6

120.7

4

4

4

4

4

4

25

40

50

1/2

3/4

1

1 1/4

1 1/2

2

* Material code 34 L = 150 mm (no DIN length)

MG = diaphragm size

Body dimensions - Threaded connections to DIN 11851

* only valid for investment cast design ** valid for forged designMG = diaphragm size

MGDN H1* H1** f* g* G L(Code 6)L

(Code 62)

25

25

25

40

40

50

15

20

25

32

40

50

13

16

19

24

26

32

19

19

19

26

26

32

40.0

40.0

40.0

68.0

75.0

90.0

13.5

13.5

13.5

13.5

13.5

13.5

Rd 34 x 1/8

Rd 44 x 1/6

Rd 52 x 1/6

Rd 58 x 1/6

Rd 65 x 1/6

Rd 78 x 1/6

118

118

128

147

160

191

116

114

127

147

160

191

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Body dimensions - Clamp connectionsCode 80

for pipe ASME BPECode 82

for pipe EN ISO 1127Code 88

for pipe ASME BPECode 8A

for pipe DIN 11850Code 8E

for pipe SMS 3008

d1 d3 L d1 d1 d1 d1 d3 d3 d3 d3L L L LDN NPS MG H1

15

20

25

32

4050

1/2

3/4

1

1 1/4

1 1/22

25

25

25

40

4050

19

19

19

26

2632

9.40

15.75

22.10

-

34.8047.50

25.00

25.00

50.50

-

50.5064.00

101.60

101.60

114.30

-

139.70158.75

18.10

23.70

29.70

38.40

44.3056.30

9.40

15.75

22.10

-

34.8047.50

16.00

20.00

26.00

32.00

38.0050.00

-

-

22.60

31.30

35.6048.60

-

-

50.50

50.50

50.5064.00

-

-

127.00

146.00

159.00190.00

50.50

50.50

50.50

64.00

64.0077.50

25.00

25.00

50.50

-

50.5064.00

34.00

34.00

50.50

50.50

50.5064.00

108.00

117.00

127.00

146.00

159.00190.00

108.00

117.00

127.00

-

159.00190.00

108.00

117.00

127.00

146.00

159.00190.00

Dimensions in mm

MG = diaphragm size

For further metal diaphragm valves, accessories and other products,

please see our Product Range catalogue and Price List. Contact GEM.

Overview of valve bodies for GEM 695Material

(Code)39 8 37 8,17,18 Code 34, Code 40

Connection(Code)

25

25

25

40

40

50

15

20

25

32

40

50

X

X

X

X

X

X

-

X

X

-

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

B

B

B

B

B

B

B

B

B

B

B

B

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

-

-

X

X

X

X

Y

Y

Y

Y

Y

Y

-

-

X

X

X

X

B

B

B

B

B

B

X

X

-

-

-

-

X

X

X

-

X

X

X

X

X

X

X

X

B

B

B

B

B

B

K

K

K

-

K

K

W

K

K

W

W

W

K

K

K

-

K

K

K

K

K

K

K

K

-

-

K

K

K

K

8

DN MG

38 39 1 1 8 39 0 8 6 16 17 18 35 36 37 39 55 59 60 62 80 82 88 8A 8E

X Spigot body in material code 34 and 40

Y Spigot body in material code 40B Welded construction in material code 34 and 40W Welded construction in material code 40K Connections completely machined (not welded) in material code 40

MG = diaphragm size

VALVES, MEASUREMENTAND CONTROLSYSTEMS

GEM Gebr. Mller Apparatebau GmbH & Co. KG Fritz-Mller-Str. 6-8 D-74653 Ingelfingen-Criesbach Tel. +49 (0) 7940/123-0 Telefax +49 (0) 7940/123-224e-mail: info@gemue.de http://www.gemue.de

Technicaldatasheet

Subjecttoalteration09/200688048768

Shouldtherebeanydoubtsormisunderstandings,

theGerman

versionofthisdata

sheetistheauthoritativedocument!