Pressure

Diaphragm seal with flange connection

With flush diaphragm
Model 990.27
WIKA data sheet DS 99.27

for further approvals

see page 10

Applications

■■ Aggressive, highly viscous, crystallising or hot media

■■ Process industry
■■ Machine building and automation

Special features

■■ Flange with flush welded diaphragm

Diaphragm seal with flange connection, model 990.27
■■ Common standards and nominal widths available
■■ Wide variety of different materials and material combina-
tions

Description

Diaphragm seals are used for the protection of pressure The model 990.27 diaphragm seal is available in a wide
measuring instruments in applications with difficult media. In variety of dimensions following the usual standards for this
diaphragm seal systems, the diaphragm of the diaphragm market.
seal effects the separation of the instrument and the medium.
The pressure is transmitted to the measuring instrument Mounting of the diaphragm seal to the measuring instrument
via the system fill fluid which is inside the diaphragm seal may be made via a direct connection, for high temperatures
system. via a cooling element or via a flexible capillary.

For the implementation of demanding customer applications, For the material selection WIKA offers a variety of solutions,
there are a wide variety of designs, materials and system fill in which the upper body of the diaphragm seal and the
fluids available. wetted parts can be made of identical or different materials.
The diaphragm can, as an alternative, be coated.
For further technical information on diaphragm seals and
diaphragm seal systems see IN 00.06 “Application, operating
principle, designs”.

WIKA data sheet DS 99.27 ∙ 03/2018 Page 1 of 10

Data sheets showing similar products:

Flange connection, with internal diaphragm; model 990.26; see data sheet DS 99.26
Specifications
Model 990.27 Standard Option
Nominal pressure and materials See tables from page 4
Level of cleanliness of wetted Oil and grease free per ASTM G93-03 ■■ Oil and grease free per ASTM G93-03 level D and
parts level F WIKA standard (< 1,000 mg/m²) ISO 15001 (< 220 mg/m2)
■■ Oil and grease free per ASTM G93-03 level C and
ISO 15001 (< 66 mg/m²)
Origin of wetted parts International ■■ EU
■■ CH
■■ USA

Connection to the measuring Axial adapter Axial adapter with G ½, G¼, ½ NPT or ¼ NPT (female)
instrument
Type of mounting Direct mounting ■■ Capillary
■■ Cooling element

Flushing ring, model 910.27 - Stainless steel 316L, for connection DN 40 ... 125 per EN
or DN 1 ½" ... 5" per ASME (see data sheet AC 91.05)

Design per NACE - ■■ MR 0175

■■ MR 0103

Vacuum service (see IN 00.25) Basic service ■■ Premium service

■■ Advanced service

Diaphragm seal for mounting to - With flame arrester and PTB certificate
zone 0
Instrument mounting bracket - ■■ Form H per DIN 16281, 100 mm, aluminium, black
(only for capillary option) ■■ Form H per DIN 16281, 100 mm, stainless steel
■■ Bracket for pipe mounting, for pipe Ø 20 ... 80 mm,
steel (see data sheet AC 09.07)

Example: Diaphragm seal model 990.27 with mounted pressure gauge

Not included Sealing

in delivery
Mating flange

Pressure gauge

Direct mounting

Diaphragm seal

Diaphragm d4

D
Raised face
b

Legend:
D Outer diameter of diaphragm seal
f

d4 Sealing face diameter

14219130.01

k Pitch circle diameter

b Flange thickness
f Height of raised face
Following DIN EN 1092-1

WIKA data sheet DS 99.27 ∙ 03/2018 Page 2 of 10

Process connection, flange
Standard Flange size Sealing face
Standard Option
Following DIN EN 1092-1 DN 25 Form B1 ■■ Form A
■■ Form B2
DN 40 ■■ Form C (tongue)
DN 50 ■■ Form D (groove)
■■ Form E (spigot)
DN 65 ■■ Form F (recess)
DN 80

DN 100

DN 125

Following ASME B16.5 1" RF 125 ... 250 AA ■■ RFSF

■■ Flat face
1 ½" ■■ Small tongue
■■ Small male face
2"
■■ Small groove
2 ½" ■■ Small female face
■■ Large tongue
3" ■■ Large male face
■■ Large groove
4" ■■ Large female face
5"
■■ RJF groove

Following GOST 33259 DN 25 Type B ■■ Type A (flat face)

■■ Type C (tongue)
DN 40 ■■ Type D (groove)
■■ Type E (spigot, male face)
DN 50
■■ Type F (recess, female face)
DN 65

DN 80

DN 100

DN 125

Following API 6A 1 1/8" Ring-joint groove -

1 1/16"

1 13/16"

2 1/16"

Following JIS B2220 DN 25A RF -

DN 40A

DN 50A

DN 80A

DN 100A

Other flanges on request

WIKA data sheet DS 99.27 ∙ 03/2018 Page 3 of 10

Material combinations
Upper body of diaphragm Wetted parts Maximum permissible pro-
seal cess temperature ¹⁾ in °C (°F)

Stainless steel 1.4404 (316L) Stainless steel 1.4404 / 1.4435 (316L), standard version 400 (752)
Stainless steel 1.4539 (904L)
Stainless steel 1.4541 (321)
Stainless steel 1.4571 (316Ti)
ECTFE coating 150 (302)
PFA (perfluoroalkoxy) coating, FDA 260 (500)
PFA (perfluoroalkoxy) coating, antistatic
Gold plating 400 (752)
Wikaramic® coating
Hastelloy C22 (2.4602) 260 (500)
Hastelloy C276 (2.4819) 400 (752)
Inconel 600 (2.4816)
Inconel 625 (2.4856)
Incoloy 825 (2.4858)
Monel 400 (2.4360)
Nickel 200 (2.4060, 2.4066) 260 (500)
Titanium (3.7035) 150 (302)
Titanium (3.7235)
Tantalum 300 (572)
Stainless steel 1.4435 (316L) Stainless steel 1.4435 (316L) 400 (752)
Stainless steel 1.4539 (904L) Stainless steel 1.4539 (904L)
Stainless steel 1.4541 (321) Stainless steel 1.4541 (321)
Stainless steel 1.4571 (316Ti) Stainless steel 1.4571 (316Ti)
Duplex 2205 (1.4462) Duplex 2205 (1.4462) 300 (572)
Superduplex 2507 (1.4410) Superduplex 2507 (1.4410)
Hastelloy C22 (2.4602) Hastelloy C22 (2.4602) 400 (752)
Hastelloy C276 (2.4819) Hastelloy C276 (2.4819)
Inconel 600 (2.4816) Inconel 600 (2.4816)
Inconel 625 (2.4856) Inconel 625 (2.4856)
Incoloy 825 (2.4558) Incoloy 825 (2.4858)
Monel 400 (2.4360) Monel 400 (2.4360)
Nickel 200 (2.4060, 2.4066) Nickel 200 (2.4060, 2.4066)
Titanium 3.7035 Titanium class 2 (3.7035)
Titanium 3.7235 Titanium class 7 (3.7235)

1) The maximum permissible process temperature is limited by the joining method and by the system fill fluid.

Further material combinations for special process temperatures on request

WIKA data sheet DS 99.27 ∙ 03/2018 Page 4 of 10

Flange connection following DIN EN 1092-1, form B

1387979.04
Legend:
Mb Effective diameter of diaphragm
D Outer diameter of diaphragm seal
b Flange thickness
d₂ Bore diameter
d₄ Sealing face diameter
f Height of raised face
k Pitch circle diameter
x Number of bores

DN PN in Dimensions in mm (in) x Weight in

bar Mb D b d2 k f d₄ kg (lbs)

25 10/40 32 (1.26) 115 (4.528) 18 (0.709) 14 (0.551) 85 (3.346) 2 (0.079) 68 (2.677) 4 1.5 (3.3)
63/100 25 (0.984) 140 (0.984) 24 (0.945) 18 (0.709) 100 (3.937) 2.5 (5.5)
40 10/40 45 (1.772) 150 (5.905) 18 (0.709) 18 (0.709) 110 (4.331) 88 (3.465) 2.6 (5.7)
63/100 170 (6.693) 26 (1.024) 22 (0.866) 125 (4.921) 4.0 (8.8)
160 170 (6.693) 28 (1.102) 22 (0.866) 125 (4.921) 4.3 (9.5)
250 185 (2.283) 34 (1.339) 26 (1.024) 135 (5.315) 6.3 (13.9)
50 10/40 59 (2.323) 165 (6.496) 20 (0.787) 18 (0.709) 125 (4.921) 2 (0.079) 102 (4.016) 3.3 (7.3)
63 180 (7.087) 26 (1.024) 22 (0.866) 135 (5.315) 5.1 (11.2)
100 195 (7.677) 28 (1.102) 26 (1.024) 145 (5.709) 6.5 (14.3)
160 195 (7.677) 30 (1.181) 26 (1.024) 145 (5.709) 7.0 (15.4)
250 200 (7.874) 38 (1.496) 26 (1.024) 150 (5.906) 8 9.3 (20.5)
80 10/16 89 (3.504) 200 (7.874) 20 (0.787) 18 (0.709) 160 (6.299) 2 (0.079) 138 (5.433) 4.9 (10.8)
25/40 200 (7.874) 24 (0.945) 18 (0.709) 160 (6.299) 5.8 (12.8)
63 215 (8.465) 28 (1.102) 22 (0.866) 170 (6.693) 7.9 (17.4)
100 230 (9.055) 32 (1.26) 26 (1.024) 180 (7.087) 10.4 (22.9)
160 230 (9.055) 36 (1.487) 26 (1.024) 180 (7.087) 11.7 (25.8)
250 255 (10.039) 46 (1.811) 30 (1.181) 200 (7.874) 18.4 (40.6)
100 10/16 89 (3.504) 220 (8.661) 20 (0.787) 18 (0.709) 180 (7.087) 2 (0.079) 158 (6.22) 5.9 (13)
25/40 235 (9.252) 24 (0.945) 22 (0.866) 190 (7.480) 162 (6.378) 8.1 (17.9)
63 250 (9.842) 30 (1.181) 26 (1.024) 200 (7.874) 11.5 (25.3)
100 265 (10.433) 36 (1.487) 30 (1.181) 210 (8.268) 15.5 (34.2)
160 265 (10.433) 40 (1.575) 30 (1.181) 210 (8.268) 17.3 (38.1)
250 300 (11.811) 54 (2.126) 33 (1.299) 235 (9.252) 29.9 (65.9)
125 10/16 124 (4.882) 250 (9.842) 22 (0.866) 18 (0.709) 210 (8.268) 2 (0.079) 188 (7.402) 8.4 (18.5)
25/40 270 (10.63) 26 (1.024) 26 (1.024) 220 (8.661) 11.6 (25.6)
63 295 (11.614) 34 (1.339) 30 (1.181) 240 (9.449) 16.5 (36.4)
100 315 (12.412) 40 (1.575) 33 (1.299) 250 (9.842) 24.4 (53.8)
160 315 (12.412) 44 (1.732) 33 (1.299) 250 (9.842) 26.9 (59.3)
250 340 (13.386) 60 (2.342) 33 (1.299) 275 (10.827) 12 42.7 (94.1)

Further dimensions and higher nominal pressures on request

WIKA data sheet DS 99.27 ∙ 03/2018 Page 5 of 10

Flange connection per ASME B 16.5, RF

1387979.04
Legend:
Mb Effective diameter of diaphragm
D Outer diameter of diaphragm seal
b Flange thickness
d₂ Bore diameter
d₄ Sealing face diameter
f Height of raised face
k Pitch circle diameter
x Number of bores

DN Class Dimensions in mm (in) x Weight in

Mb D b d2 k f d4 kg (lbs)

1" 150 32 110 (4.331) 14.7 (0.579) 16 (0.63) 79.4 (3.126) 2 51 4 1.4 (3.1)
(1.26) (0.079) (2.008)
300 125 (4.921) 17.9 (0.705) 19 (0.748) 88.9 (3.5) 1.7 (3.7)
1 ½" 150 45 125 (4.921) 17.9 (0.705) 16 (0.63) 98.4 (3.874) 2 73 4 1.6 (3.5)
(1.772) (0.079) (2.874)
300 155 (6.102) 21.1 (0.831) 22 (0.866) 114.3 (4.5) 2.5 (5.5)
600 155 (6.102) 29.3 (1.154) 22 (0.866) 114.3 (4.5) 7 3.3 (7.2)
(0.276)
1,500 180 (7.087) 38.8 (1.528) 29 (1.142) 123.8 (4.874) 5.9 (13)
2,500 205 (8.071) 51.5 (2.078) 32 (1.26) 146 (5.748) 10.4 (22.9)
2" 150 59 150 (5.905) 19.5 (0.768) 19 (0.748) 120.7 (4.752) 2 92 4 2.7 (6)
(2.323) (0.079) (3.622)
300 165 (6.496) 22.7 (0.894) 19 (0.748) 127 (5) 8 3.7 (8.1)
600 165 (6.496) 32.4 (1.276) 19 (0.748) 127 (5) 7 5.7 (12.6)
(0.276)
1,500 215 (8.465) 45.1(1.776) 26 (1.024) 165.1 (6.5) 13.2 (29)
2,500 235 (9.252) 57.9 (2.28) 29 (1.142) 171.4 (6.748) 19.8 (43.7)
3" 150 89 190 (7.482) 24.3 (0.957) 19 (0.748) 152.4 (6) 2 127 4 5.3 (11.7)
(3.504) (0.079) (5)
300 210 (8.268) 29 (1.142) 22 (0.866) 168.3 (6.626) 8 7.8 (17.2)
600 210 (8.268) 38.8 (1.528) 22 (0.866) 168.3 (6.626) 7 11 (24.3)
(0.276)
900 240 (9.449) 45.1 (1.776) 26 (1.024) 190.5 (7.7) 16.7 (36.8)
1,500 265 (10.433) 54.7 (1.799) 32 (1.26) 203.2 (8) 24.5 (54)
2,500 305 (12.007) 73.7 (2.902) 35 (1.378) 228.6 (5.063) 42.7 (94.1)
4" 150 89 230 (9.055) 24.3 (0.957) 19 (0.748) 190.5 (7.5) 2 157.2 8 7.7 (17)
(3.504) (0.079) (6.189)
300 255 (10.039) 32.2 (1.268) 22 (0.866) 200 (7.874) 12.7 (28)
400 255 (10.039) 42 (1.654) 26 (1.024) 200 (7.874) 7 17.4 (38.4)
(0.276)
600 275 (10,826) 45.1 (1.776) 26 (1.024) 215.9 (8.5) 21.5 (47.4)
900 290 (11,417) 51.5 (2.028) 32 (1.26) 235 (9.252) 27.7 (61.1)
1,500 310 (12.205) 61 (2.402) 35 (1.378) 241.3 (9.5) 37 (81.6)
2,500 355 (13.976) 83.2 (3.276) 42 (1.654) 273 (10.748) 65.7 (144.8)
5" 150 124 255 (10.039) 24.3 (0.957) 22 (0.866) 215.9 (8.5) 2 185.7 8 9.2 (20.3)
(4.882) (0.079) (7.311)
300 280 (11.024) 35.4 (1.394) 235 (9.25) 16.3 (35.9)
400 45.1 (2.13) 26 (1.024) 7 19.3 (42.5)
(0.276)
600 330 (13) 51.5 (2.028) 29 (1.142) 266.7 (10.5) 30.5 (67.2)
900 350 (13.78) 57.8 (2.278) 35 (1.378) 279.4 (11) 38 (83.8)
1,500 375 (14.764) 80.1 (3.154) 42 (1.654) 292.1 (11.5) 60.1 (132.5)
2,500 420 (16.535) 99.1 (3.902) 48 (1.189) 323.8 (12.75) 93.6 (206.4)

Further dimensions and higher nominal pressures on request

WIKA data sheet DS 99.27 ∙ 03/2018 Page 6 of 10

Flange connection per GOST 33259, type B

14237014.01
Legend:
Mb Effective diameter of diaphragm
D Outer diameter of diaphragm seal
b Flange thickness
d₂ Bore diameter
d₄ Sealing face diameter
f Height of raised face
k Pitch circle diameter
x Number of bores

DN PN in Dimensions in mm (in) x Weight in

bar Mb D b d2 k f d4 kg (lbs)

50 10/16 59 (2.323) 160 (6.3) 16 (0.63) 18 (0.709) 125 (4.921) 3 (0.118) 102 (4.016) 4 2.4 (5.3)
25/40 20 (0.787) 3 (6.6)
63 175 (6.89) 26 (1.024) 22 (0.866) 135 (5.315) 4.5 (9.9)
100 195 (7.677) 28 (1.102) 26 (1.024) 145 (5.709) 5.6 (12.3)
160 30 (1.181) 6.4 (14.1)
200 210 (8.268) 40 (1.575) 160 (6.299) 8 9.4 (20.7)
80 10 89 (3.504) 195 (7.677) 18 (0.709) 18 (0.709) 160 (6.299) 3 (0.118) 133 (5.236) 4 4 (8.8)
16 20 (0.787) 4.5 (9.9)
25 22 (0.866) 8 4.8 (10.6)
40 24 (0.945) 5.2 (11.5)
63 210 (7.677) 30 (1.181) 22 (0.866) 170 (6.693) 7.4 (16.3)
100 230 (9.055) 34 (1.339) 26 (1.024) 180 (7.087) 9.8 (21.6)
160 36 (1.417) 10.4 (22.9)
200 290 (11.417) 54 (2.126) 33 (1.299) 230 (9.055) 24.7 (54.5)
100 10/16 89 (3.504) 215 (8.465) 20 (0.787) 18 (0.709) 180 (7.087) 3 (0.118) 158 (6.22) 8 5.3 (11.7)
25 230 (9.055) 24 (0.945) 22 (0.866) 190 (7.48) 7.1 (15.7)
40 26 (1.024) 7.8 (17.2)
63 250 (9.842) 32 (1.26) 26 (1.024) 200 (7.874) 11.1 (24.5)
100 265 (10.433) 38 (1.496) 30 (1.181) 210 (8.268) 14.5 (32)
160 40 (1.575) 15.3 (33.7)
200 360 (14.173) 66 (2.598) 39 (1.535) 292 (11.496) 47.2 (104.1)
125 10/16 89 (3.504) 245 (9.646) 22 (0.866) 18 (0.709) 210 (8.268) 3 (0.118) 184 (7.244) 8 7.7 (17)
25 270 (10.63) 26 (1.024) 26 (1.024) 220 (8.661) 10.6 (23.4)
40 28 (1.102) 11.4 (25.1)
63 295 (11.614) 36 (1.417) 30 (1.181) 240 (9.449) 17.4 (38.4)
100 310 (12.205) 42 (1.654) 33 (1.299) 250 (9.842) 22.3 (49.2)
160 310 (12.205) 44 (1.732) 23.4 (51.6)
200 385 (15.157) 76 (2.992) 39 (1.535) 318 (12.52) 63.2 (139.3)

Further dimensions and higher nominal pressures on request

WIKA data sheet DS 99.27 ∙ 03/2018 Page 7 of 10

Flange connection per API 6A, ring-joint groove

14237015.01
Legend:
Mb Effective diameter of diaphragm
D Outer diameter of diaphragm seal
b Flange thickness
d₄ Sealing face diameter
f Height of raised face
k Pitch circle diameter
x Number of bores
d₂ Bore diameter
F Groove width
E Groove depth
P₁ Mid diameter, ring groove
P₂ Outer diameter, ring groove

x
DN PN in Dimensions in mm (in) Groove dimensions in mm (in) Weight
psi Mb D d₄ f b k d₂ P₁ P₂ E F in kg
(lbs)
1 13/16" 10,000 40 185 105 4 42.1 146.1 8 23 - 77.77 5.56 11.84 7.7 (17)
(1.575) (7.283) (4.134) (0.157) (1.657) (5.752) (0.906) (3.062) (21.89) (0.466)
15,000 210 106 45.3 160.3 26 10.5
(8.268) (4.173) (1.783) (6.311) (1.024) (23.1)
20,000 255 117 63.5 203.2 29 22.3
(10.039) (4.606) (2.5) (8) (1.142) (49.2)
2 1/16" 2,000 52 165 108 8 33.4 127 (5) 20 82.55 - 7.9 11.91 4.6 (10.1)
(2.047) (6.496) (4.252) (0.315) (1.315) (0.787) (3.25) (0.311) (0.469)
3,000/ 215 124 46.1 165.1 26 95.25 10.7
5,000 (8.465) (4.882) (1.815) (6.5) (1.024) (3.75) (23.6)
10,000 200 111 4 44.1 158.8 23 - 86.23 5.95 12.65 9.5 (20.9)
(7.874) (4.370) (0.157) (1.736) (6.252) (0.906) (3.395) (0.234) (0.498)
15,000 220 114 50.8 174.6 26 13.2
(8.661) (4.488) (2) (6.874) (1.024) (29.1)
20,000 285 132 71.5 230.2 32 31.6
(11.22) (5.197) (2.815) (9.063) (1.26) (69.7)
2 9/16" 2,000 59 190 127 (5) 8 36.6 149.2 23 101.6 - 7.9 11.91 6.7 (14.8)
(2.323) (7.48) (0.315) (1.441) (5.874) (0.906) (4) (3.11) (0.469)
3,000/ 245 137 49.3 190.5 29 107.95 15 (33.1)
5,000 (9.656) (5.394) (1.941) (7.5) (1.142) (2.25)
10,000 230 132 4 51.2 184.2 26 - 102.77 6.75 14.07 14.7
(9.055) (5.197) (0.157) (2.016) (7.252) (1.024) (4.046) (0.266) (0.579) (32.4)
15,000 255 133 57.2 200 29 20.1
(10.039) (5.236) (2.055) (7.874) (1.142) (44.3)
20,000 325 151 79.4 261.9 35 46.3
(12.795) (5.945) (3.126) (10.311) (1.378) (102)
3 1/8" 2,000 89 210 146 7.9 39.7 168.3 23 123.83 - 7.9 11.91 9.2 (20.3)
(3.504) (8.268) (5.748) (0.311) (1.563) (6.626) (0.906) (4.875) (0.311) (0.469)
3,000 240 156 8 46.1 190.5 26 13.9
(9.449) (6.142) (0.315) (1.815) (7.5) (1.024) (30.6)
5,000 265 168 7.9 55.6 203.2 32 136.53 20.2
(10.433) (6.614) (0.311) (2.189) (8) (1.26) (5.375) (44.5)

Further dimensions and higher nominal pressures on request

WIKA data sheet DS 99.27 ∙ 03/2018 Page 8 of 10

Flange connection per JIS B 2220, RF

1387979.04
Legend:
Mb Effective diameter of diaphragm
D Outer diameter of diaphragm seal
b Flange thickness
d₂ Bore diameter
d₄ Sealing face diameter
f Height of raised face
k Pitch circle diameter
x Number of bores

DN PN Dimensions in mm (in) x Weight in

Mb D b d₂ k f d₄ kg (lbs)

25A 5K 32 (1.26) 95 (3.74) 10 (0.394) 12 (0.472) 75 (2.953) 1 (0.039) 59 (2.323) 4 0.7 (1.5)
10K 125 (4.921) 14 (0.551) 19 (0.748) 90 (3.543) 67 (2.638) 1.4 (3.1)
16K
20K 16 (0.63) 1.6 (3.5)
30K 130 (5.118) 20 (0.787) 95 (3.740) 70 (2.756) 2.1 (4.6)
40K 25 (0.984) 22 (0.866) 2.3 (5.1)
63K 140 (5.512) 27 (1.063) 23 (0.906) 100 (3.967) 3.1 (6.9)
50A 5K 59 (2.323) 130 (5.118) 14 (0.551) 15 (0.591) 105 (4.134) 2 (0.079) 85 (3.346) 1.5 (3.3)
10K 155 (6.102) 16 (0.63) 19 (0.748) 120 (4.724) 96 (3.78) 2.3 (5.1)
16K 8 2.2 (4.9)
20K 18 (0.709) 2.4 (5.3)
30K 165 (6.496) 22 (0.866) 130 (5.118) 105 (4.134) 3.4 (7.5)
40K 26 (1.024) 4.0 (8.8)
63K 185 (7.83) 34 (1.339) 23 (0.906) 145 (5.709) 6.4 (14.1)
80A 5K 89 (3.504) 180 (7.087) 14 (0.551) 19 (0.748) 121 (4.764) 4 2.7 (6)
10K 185 (7.83) 18 (0.709) 150 (5.905) 126 (4.961) 8 3.5 (7.7)
16K 200 (7.874) 20 (0.787) 23 (0.906) 160 (6.299) 132 (5.197) 4.5 (9.9)
20K 22 (0.866) 4.9 (10.8)
30K 210 (8.268) 28 (1.102) 170 (6.693) 140 (5.512) 7 (15.4)
40K 32 (1.26) 8 (17.6)
63K 230 (9.055) 40 (1.575) 25 (0.984) 185 (7.83) 11.9 (26.2)
100A 5K 200 (7.874) 16 (0.63) 19 (0.748) 165 (6.496) 141 (5.551) 3.7 (8.2)
10K 210 (8.268) 18 (0.709) 175 (6.89) 151 (5.945) 4.6 (10.1)
16K 225 (8.858) 22 (0.866) 23 (0.906) 185 (7.83) 160 (6.299) 6.4 (14.1)
20K 24 (0.945) 6.9 (15.2)
30K 240 (9.449) 32 (1.26) 25 (0.984) 195 (7.677) 10.4 (22.9)
40K 250 (9.852) 36 (1.417) 205 (8.071) 165 (6.496) 12.8 (28.2)
63K 270 (10.63) 44 (1.732) 27 (1.063) 220 (8.661) 18.2 (40.1)

Further dimensions and higher nominal pressures on request

WIKA data sheet DS 99.27 ∙ 03/2018 Page 9 of 10

 Approvals

Logo Description Country

EAC (option) Eurasian Economic Community
Pressure equipment directive
- CRN Canada
Safety (e.g. electr. safety, overpressure, ...)
- MTSCHS (option) Kazakhstan
Permission for commissioning

Certificates (option)
■■ 2.2 test report per EN 10204 (e.g. state-of-the-art
manufacturing, material proof, indication accuracy for
diaphragm seal systems)
■■ 3.1 inspection certificate per EN 10204 (e.g. material
proof for wetted metallic parts, indication accuracy for
diaphragm seal systems)

Approvals and certificates, see website

Ordering information
Diaphragm seal:
Diaphragm seal model / Process connection (standard, flange size, nominal pressure, sealing face) / Materials (upper body,
sealing face, diaphragm) / Level of cleanliness of wetted parts / Origin of wetted parts / Design per NACE / Connection to the
measuring instrument / Certificates / Flushing ring

Diaphragm seal system:

Diaphragm seal model / Pressure measuring instrument model (per data sheet) / Mounting (direct mounting, cooling
element, capillary) / Materials (upper body, sealing face, diaphragm) / Min. and max. process temperature / Min. and max.
ambient temperature / Vacuum service / System fill fluid / Certificates / Height difference / Level of cleanliness of wetted parts
/ Origin of wetted parts / Design per NACE / Diaphragm seal for mounting to zone 0 / Instrument mounting bracket / Process
connection (standard, flange size, nominal pressure, sealing face) / Flushing ring

© 02/2004 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specifications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modifications to the specifications and materials.
03/2018 EN

WIKA data sheet DS 99.27 ∙ 03/2018 Page 10 of 10

WIKA Alexander Wiegand SE & Co. KG

Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel. +49 9372 132-0
Fax +49 9372 132-406
info@wika.de
www.wika.de