Chemical seal 1680

In-line diaphragm seals 1680
with thread for compression fittings
Main Features
„„
Directly integrated in the pipe
„„
Excellent cleaning behaviour
„„
Pressure ranges up to 250 bar
„„
Wetted parts 1.4435 / 1.4404 (316L) or 1.4571 (316Ti)
„„
Easy and fast installation
Applications
„„Oil & Gas
„„Chemical industry
„„Water & Waste water
„„Energy
Description
This in-line diaphragm seals are used to protect pressure gauges from
high temperature, aggressive or corrosive fluids. Due to the integration
as part of the pipe line these seals are especially suitable for fluids
with high viscosity or a tendency to crystallize.
Diaphragm seals can be mounted to mechanical pressure gauges,
switches or transmitters directly or with a flexible capillary. The filling
fluid of the measuring system has to be choosen compatible to the
application.
Process connection Threaded connection for compression fittings
according DIN 2353, type L
Pressure ranges
0 ... 1 bar to 0 ... 250 bar
(see table below)
Body material
Stainless Steel 1.4571 (316Ti)
Diaphragm
Stainless Steel 1.4435 or 1.4404 (AISI 316L)
or 1.4571 (316Ti)
Working temperature -20 … 225 °C (depending on the filling fluid)
Filling fluids
LRS1: Vaseline (-15 ... +150 °C)
Other filling fluids on request
Code
Pipe
1683
Pressure gauges (1)
Transmitters (2)
P max.
0 ... 16 bar
0 ... 1 bar
250 bar
NS 50 / 63 mm
NS 100 / 150 / 160 mm
12 x 1.5
0 ... 6 bar
1685
18 x 1.5
0 ... 4 bar
0 ... 10 bar
0 ... 1 bar
160 bar
1686
22 x 2
0 ... 2.5 bar
0 ...
6 bar
0 ... 1 bar
160 bar
1687
28 x 2
0 ... 1.6 bar
0 ...
4 bar
0 ... 1 bar
100 bar
1688
35 x 2
0 ... 1.6 bar
0 ...
4 bar
0 ... 1 bar
100 bar
1689
42 x 3
0 ... 1.6 bar
0 ...
4 bar
0 ... 1 bar
100 bar
(1)
and corresponding compound pressure ranges
lower pressure ranges on request
2015-01-29
(2)
Design and specifications subject to change without notice
Ordering code / Minimum pressure ranges
www.baumer.com
Data sheet A44. D1.236
Page 1 / 2
In-line diaphragm seals 1680
with thread for compression fittings
Dimensions
G
Contact surface
x
M
Pipe O. D.
h
S
L1
L
Dimension chart
1 Separator body
2 Union nut form A
acc. to DIN 3870
1
2
3
Pipe
M
L
L1
G
S
h
x
Weight
kg
Inner
shape
0.7
4-sided
12 x 1.5
M18 x 1.5
150
136
G¼
27
13.5
10
3 Cutting ring
acc. to DIN 3861
18 x 1.5
M26 x 1.5
135
120
G¼
27
13.5
15.5
0.5
4-sided
22 x 2
M30 x 2
130
115
G½
32
16
19
0.8
4-sided
4 Pipe
28 x 2
M36 x 2
120
105
G½
41
20.5
22.5
1.0
4-sided
35 x 2
M45 x 2
120
99
G½
46
23
29
1.1
6-sided
42 x 3
M52 x 2
120
98
G½
55
27.5
35
1.5
6-sided
4
Ordering example
MEX
5
–
D
2
0
.
B22
/
1683
_
9007
_
0125
_
LRS1
In-line diaphragm seal, for pipes 12 x 1.5
Option: Adjustment at specific fluid temperature
Adjustment temperature: 125°C
2015-01-29
Filling fluid LRS1: Vaseline (-15 ... +150 °C)
Design and specifications subject to change without notice
Connection example
www.baumer.com
Data sheet A44. D1.236
Page 2 / 2