•
Measurement in liquids:
Mount on the shut-off valve below the
tapping point or at the same height
PVDF adapter
For instruments with PVC adapter, a maximum torque of 7 Nm is permitted. The thread
connection may become loose at high temperatures and pressures. This means that the
integrity of the thread must be checked regularly and may need to be tightened using
the torque given above. Teflon tape is recommended for sealing with the ½ NPT thread.
Mounting the PMP 731
The PMP 731 with metallic sensor is available in the following versions:
•
with flush-mounted diaphragm or
•
with adapter and internal diaphragm.
The adapter can be screwed on or welded in.
A seal is enclosed appropriate to the material used and version.
0 - 10 bar
BA211Y10
Figure 2.4
Mounted on a shut-off valve for measuring liquids
132
132
12
12
G/
1
2
G/
1
2
Ø26
Ø26
3
3
2.5
21
27
22
14
Thread
adapter
DIN 3852-E-G ½
Material: 1.4571 or
Hastelloy
G ½ external
Viton
elastomer seal
supplied
Thread adapter
DIN 3852-A-G ½
with Hastelloy only
Threaded hole
DIN 3852-X-G ½
BA211Y11
Figure 2.5
left:
An elastomer seal
to DIN 3852-E-G ½ is supplied
with the thread adapter
right:
With internal diaphragm and
welded or thread adapter
Process connection with
flush-mounted diaphragm
version 1F
With internal diaphragm and
thread adapter
Seal supplied
(with 1.4435 diaphragm only)
Welded
Welded adapter
– Material 1.4571
with 1.4435 diaphragm
– Material Hastelloy
with diaphragm in
Hastelloy
BA211Y12
2 Installation Cerabar S FF
10 Endress+Hauser
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