Data sheet 7300

Diaphragm Seals
Connection with Flat or Form Sealing
For Food and Beverage Industry, Hygienic Process Conditions
Application
Diaphragm seals model MDM 73... for connection with flat or form
sealing are mainly applied in the food industry where hygienic
process conditions are required.
Pressure gauges, pressure switches, pressure transmitters and
other pressure measuring instruments can be attached.
Diaphragm seals for aseptic connections with O-ring sealing are to
find in data sheet 7301.
Important information about advantages, applications and features
can be found in our model overview 7000 where you will also find
an overview of our other chemical seal series.
Please note especially the explanations about the influences of
temperature and other special operating conditions, and the
requirement of detailed ordering information resp. inquiries.
Please use our check list for pressure measuring instruments with
chemical seal to ensure the completeness of all required ordering
information (for download to find at our website, PDF-Download).
You can receive the check list in printed version with mail upon
request.
Construction
The diaphragm is flush welded to the body.
The complete measuring system is evacuated, completely filled with
a suitable filling liquid and hermitacally sealed.
Standard Configuration
Process Connection:
Do not open any connection of the
system! Otherwise filling fluid will
leak out and the measuring system
cannot work properly anymore!
Norm: Nom. Size: Model:
With union nut 304 stainless steel (1.4301) polished
Male thread
DIN 11851 DN 25...80 MDM 7310
APV-ISS DN 1"...3" MDM 7320
APV-RJT DN 1"...3" MDM 7330
IDF DN 1"...3" MDM 7350
SMS DN 1"...3" MDM 7370
DS 722 DN 25...80 MDM 7380
DIN 11851 DN 25...80 MDM 7315
APV-ISS DN 1"...3" MDM 7325
SMS DN 1"...3" MDM 7375
DS 722 DN 25...80 MDM 7385
Attachment flange stainless steel 316 L (1.4435)
DRD DN 50 MDM 7392
ARMATURENBAU GmbH
Manometerstraße 5 D-46487 Wesel - Ginderich
Phone: (0 28 03) 91 30–0 Fax: (0 28 03) 10 35
armaturenbau.com mail@armaturenbau.com
Models
MDM 73..
Continuation Process Connection:
Norm: Nom. Size: Model:
Clamp
Body
Stainless steel 316 L (1.4435)
ISO 2852 DN 1"...3" MDM 7340
DIN 32 676 DN 25...80 MDM 7340.1
EHEDG approved if applied with an
EHEDG approved form sealing
Diaphragm
Stainless steel 316 L (1.4435) flush welded,
effective diaphragm Ø dM see tables on pages 3-4
Nominal Pressure
PN 25 to 40, dependent on model and size, see pages 3-4
Instrument Connection 1)
G ½ (½" BSP) female
Filling Liquid
Vegetable oil (FN 1)
MDM 7310, DN 32, PN 40,
here with Bourdon tube gauge
model RCh 100-3
Pressure Ranges Measuring Instrument
Pressure gauge: dependent on model and size,
minimum pressure range and PN see tables on pages 3-4
Minimum pressure ranges for other measuring instruments upon request
ReferenceTemperature
+20 °C ( +68 °F), dial inscription for pressure gauges: tA 20 °C
Max. Cleaning Temperature CIP/SIP
+150 °C (+302 °F), dial inscription for pressure gauges: tR 150 °C
for the complete pressure measuring system consisting of pressue gauge NCS
100 (4") and chemical seal, mounted at our factory and filled with vegetable oil
(without electrical accessories); tR max. for other versions upon request.
Sealing
Flat or form sealing in dependance on diaphragm seal model; the
sealings are not part of our standard supply, compare "Accessories"
1) Separately delivered standard MDM (not mounted to a measuring instrument)
are provided with a filling port at the instrument connection piece.
Subsidiary Company and Sales East Germany and Eastern Europe
MANOTHERM Beierfeld GmbH
Am Gewerbepark 9 • D-08344 Grünhain-Beierfeld
Phone: (0 37 74) 58–0 Fax: (0 37 74) 58–545
manotherm.com mail@manotherm.com
7300
8/06

Accessories, Special Configurations, How to Order
Accessories
Process Connection Pieces and Sealings
Process connection pieces such as welding connection pieces,
clamps, union nuts, and sealings are not part of our standard supply,
but available upon request.
The nominal pressures PN stated in the following tables are
valid for our diaphragm seals only. Possibly valid further restrictions
for the applied process connection pieces are to
consider. Reinforced clamps or union nuts might be required
for certain applications.
Special Configurations et. al.
Diaphragm seal additionally welded to the measuring instrument
upon request;
Twice welded diaphragm seal/pressure gauge version (Hygenic
Desing) see data sheets 7303/1903
Instrument connection female: G ¼, ½"NPT, ¼" NPT; others upon
request
Process connection: other versions and sizes upon request
Working temperature different than +20 °C ( +68 °F)
Cleaning temperature > +150 °C (+302 °F) upon request
Filling Liquid
Paraffin oil (FN2), with FDA approval,
Glycerine (FN3), with FDA approval,
Glycerine/water (FN4),
others upon request
Other materials diaphragm and/or body (compare model overview
7000) upon request
Capillary line between diaphragm seal and instrument (length
limit upon request), or cooling element, see data sheet 7002,
strongly recommended for medium temperatures >+100 °C (>+212 °F)
How to Order:
Please note the details about the required ordering information
in our model overview 7000 and our
check list for measuring instruments with chemical seal
on the data sheet for the measuring instrument that shall be
attached.
Model: e.g. MDM 7310, MDM 7315 see p. 1
Nominal size: see tables p. 3-4
Nominal pressure: PN 25 or PN 40, see p. 3-4
Material: 1.4435 (316 L)
Instrument connection1) G ½ (½" BSP)
Special options: see left, e.g. other instrument connection,
cooling element, capillary line etc.
Please point out especially when the medium or ambient temperature
is different than +20 °C (+68 °F) as well as all special
process or cleaning conditions.
Example: MDM 7310, DN 25, PN 40, 1.4435,
G½ for measuring instrument
1) to state only for separate ordered chemical seals
7300 - 8/06 P. 2 of 4 ARMATURENBAU GmbH, D-46487 Wesel-Ginderich, Tel. +49(0)2803/9130–0, mail@armaturenbau.com MANOTHERM Beierfeld GmbH, D-08344 Grünhain-Beierfeld, Tel. +49(0)3774/58–0, mail@manotherm.com

Dimensional Data, Weight, Minimum Pressure Ranges for Pressure Gauges
Diaphragm Seals with Groove Union Nut or Hexagon Union Nut:
1) Valid for pressure gauge NCS 100 (4"); also valid for corresponding vacuum and
vacuum/pressure compound ranges.
Data for other pressure measuring instruments upon request.
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7300 - 8/06 P. 3 of 4 ARMATURENBAU GmbH, D-46487 Wesel-Ginderich, Tel. +49(0)2803/9130–0, mail@armaturenbau.com MANOTHERM Beierfeld GmbH, D-08344 Grünhain-Beierfeld, Tel. +49(0)3774/58–0, mail@manotherm.com

Dimensional Data, Weight, Minimum Pressure Ranges for Pressure Gauges
Diaphragm Seals with Male Thread:
Dimension ( m m / inches
) and
Weight
( kg / lb
) , Minimum
Pressure
Ranges
Model DN
MDM
7315
DIN
11
851
Fig.
E
MDM
7325
APV-ISS
Fig.
F
MDM
7375
SMS
Fig.
G
MDM
7385
DS
722
Fig.
G
25
32
40
50
65
1½"
2"
1½"
2"
32
40
50
65
75
P N
( bar/
p si)
40
580
25
360
40
580
25
360
dMb1 g g1
26
1.
02
30
1.
18
34
1.
34
46
1.
81
59
2.
32
34
1.
34
45
1.
77
34
1.
34
45
1.
77
24
. 94
30
1.
18
38
1.
5
52
2.
05
59
2.
32
55
2.
17
Diaphragm Seals with Clamp:
1 Rd
52
x /6
1 Rd
58
x /6
1 Rd
65
x /6
1 Rd
78
x /6
1 Rd
95
x /6
1 3
6 / 4
6 "
2 7
1 / 2
3 "
1 Rd
60
x /6
1 Rd
70
x /6
1 Rd
52
x /6
1 Rd
58
x /6
1 Rd
72
x /6
1 Rd
88
x /6
1 Rd
100
x /6
G ½
½"
BSP
Diaphragm Seals with Attachment Flange:
Minimum
P ressure
Range
0 - 2.
5 bar
0 - 30
psi
0 - 1 bar
0 - 15
psi
0 - 2.
5 bar
0 - 30
psi
0 - 1 bar
0 - 15
psi
Dimensions ( m m / inches
) and
Weight
( kg / lb
) , Minimum
Pressure
Ranges
Model DN
MDM
7340
ISO
2852
MDM
7340.
1
DIN
32676
1"
1½"
2"
2 ½"
3"
25
32
40
50
65
80
PN
( bar/
p si)
40
580
25
360
40
580
25
360
D dM b1 g1
1)
Weight
( approx.
)
0.
35
. 77
0.
50
1.
10
0.
70
1.
54
0.
90
1.
98
1.
95
4.
30
0.
80
1.
76
0.
95
2.
09
0.
80
1.
76
0.
95
2.
09
0.
35
. 77
0.
50
1.
10
0.
80
1.
76
1.
43
3.
15
1.
95
4.
30
Dimensions ( m m / inches
) and
Weight
( k g / lb
) , Minimum
Pressure
Range
( MA)
PN
Model DN
( bar/
p si)
b d d1 d2 dM g g2 k SW x x1 x2 ) M A1Weight
( approx.
)
MDM
7392
DRD
50
40
580
4 x
61
65
105
40
46
G ½
10.
5
2.
4 2.
56
4.
13
1.
57
1.
81
½"
BSP
. 41
84
27
12
3.
31
1.
06
. 47
11
. 43
5
. 2
0 - 1 bar
0-15
psi
0.
90
1.
98
Accessory, welding counter flange available at option:
Dimensions ( m m / inches
) and
Weight
( k g / lb
)
d d1 d2 d3 g x x1
66
2.
6
105
4.
13
50
1.
97
125
4.
92
4x
M10
. 39
20
. 79
16
. 63
Weight
( approx.
)
0.
95
2.
09
Minimum
Pressure
Weight
1)
R ange
( approx.
)
0 - 2.
5 bar
0 - 30
psi
0.
32
. 71
50.
5
24
. 94
37
1.
99
34
1.
34
1.
46
64
45
0 - 1 bar
0.
70
2.
52
1.
77
0 - 15
psi
1.
54
77.
5 55
45
1.
10
3.
05
2.
17
1.
77
2.
43
91
72
0 - 0.
6 bar
1.
30
3.
58
2.
83
0 - 10
psi
2.
87
24
G ½
. 94
½"
BSP
0 - 2.
5 bar
50.
5 28
37
0 - 30
psi
0.
32
1.
99
1.
10
34
1.
46
. 71
1. 34
0 - 1 bar
64
45
0 - 15
psi
0.
70
2.
52
1.
77
1.
54
91
45
1.
30
3. 58
72
1.
77
0 - 0.
6 bar
2.
87
106
2.
83
0 - 10
psi
1.
90
4.
17
4.
19
The information in this leaflet is given in good faith, but we reserve the right to make changes without notice.
Fig. E
Fig. F
Fig. G
1) Valid for pressure gauge NCS 100 (4"); also
valid for corresponding vacuum and vacuum/
pressure compound ranges.
Data for other pressure measuring instruments
upon request.
7300 - 8/06 P. 4 of 4 ARMATURENBAU GmbH, D-46487 Wesel-Ginderich, Tel. +49(0)2803/9130–0, mail@armaturenbau.com MANOTHERM Beierfeld GmbH, D-08344 Grünhain-Beierfeld, Tel. +49(0)3774/58–0, mail@manotherm.com