Siemens SITRANS P - Manual (Page 170)

SITRANS P measuring instruments for pressure
Quick-release diaphragm seals
For gage, absolute and differential pressure
2/170 Siemens FI 01 · 2009
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Overview
Quick-release diaphragm seals, to DIN 11851 with slotted union nut
Quick-release diaphragm seals, with clamp connection
Quick-release diaphragm seals are available for the following
SITRANS P pressure transmitter series:
• For pressure: MK II, DS III, DS III PA, DS III FF
• For differential pressure and flow: DS III, DS III PA, DS III FF
The quick-release remote seals are common designs in the food
industry. Their design means that the measured medium cannot
accumulate in dead volumes. The quick-release clamp present
on the remote seal means that quick dismounting is possible for
cleaning.
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Technical specifications
Quick-release diaphragm seal
Connection, nominal diameter Nominal pressure
For pressure
• To DIN 11851 with slotted union nut
- DN 25 PN 40
- DN 32 PN 40
- DN 40 PN 40
- DN 50 PN 25
- DN 65 PN 25
- DN 80 PN 25
• To DIN 11851 with threaded socket
- DN 25 PN 40
- DN 32 PN 40
- DN 40 PN 40
- DN 50 PN 25
- DN 65 PN 25
- DN 80 PN 25
• Clamp connection
- 1½ inch PN 40
- 2 inch PN 40
- 2½ inch PN 25
- 3 inch PN 25
For differential pressure and flow
• To DIN 11851 with slotted union nut
- DN 50 PN 25
- DN 65 PN 25
- DN 80 PN 25
• To DIN 11851 with threaded socket
- DN 50 PN 25
- DN 65 PN 25
- DN 80 PN 25
• Clamp connection
- 2 inch PN 40
- 2½ inch PN 25
- 3 inch PN 25
Sealing face
• For stainless steel, mat. No.
1.4404/316L
To EN 1092-1, form B1 or
ASME B 16.5RF 125 ... 250 AA
• For the other materials To EN 1092-1, form B2 or
ASME B16.5 RFSF
Materials
• Main body Stainless steel 316L
• Wetted parts Stainless steel 316L
• Capillary Stainless steel, mat.
No. 1.4571/316Ti
• Sheath Spiral hose made of stainless
steel, mat. No. 1.4301/316
Maximum pressure See above and the technical data
of the pressure transmitter
Tube length Without tube
Capillary
• Length Max. 10 m (32.8 ft), longer
lengths on request
• Internal diameter 2 mm (0.079 inch)
• Minimum bending radius 150 mm (5.9 inch)
Filling liquid Food oil (FDA listed)
Glycerin/water (not suitable for
use in low-pressure range)
Permissible ambient temperature Dependent on the pressure trans-
mitter and the filling liquid of the
remote seal
More information can be found in
the technical data of the pressure
transmitters and in the section
"Technical data of filling liquid" in
the Technical description to the
remote seals
Weight Approx. 4 kg (8.82 lb)
Certificates and approvals
Classification according to pressure
equipment directive
(DRGL 97/23/EC) For gases of fluid group 1 and liq-
uids of fluid group 1; complies
with requirements of article 3,
paragraph 3 (sound engineering
practice)
© Siemens AG 2008