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BF-LGP - Low gauge pressure chemical seal with flush diaphragm

BF-LGP - Low gauge pressure chemical seal with flush diaphragm

BF-LGP - Low gauge pressure chemical seal with flush diaphragm

Product catalog summary
Typical Applications: The BF-LGP chemical seal is designed for use with industrial process transmitters, particularly for low and highly accurate pressure measurements ranging from 0-10 mbar. It features temperature compensation to ensure precision.
Specifications: The BF-LGP model includes a flush diaphragm and flanged low gauge pressure design. It adheres to standards such as ASME B 16.5 and DIN 2501 (EN 1092-1), with available sizes of 3” and 4” and pressure ratings of 150/300#. Surface finishes range from Ra 3.2 to 6.3 µm, with other finishes available upon request.
Process Connection: Standard connections include AISI316 (L) flanges, with custom designs available. The diaphragm is made from AIS316L, welded in process.
Instrument Connection: Standard capillary tubing is side entry, made from AISI316, with options for armoring and various sleeve materials. Filling fluids include BSO22, with others available.
Features: The system is fully welded and temperature compensated, with options for flushing rings and support pipes. Calibration is available for process conditions, and special coatings such as PTFE, FEP, ECTFE, and PFA can be applied.
Technical Specifications: The flanged connection sizes range from ASME 1” to 4” and DIN DN32 to DN100. The diaphragm size is 72 mm, with a maximum capillary length of 15 meters. Minimum pressure ranges and spans are specified for different applications.
Temperature Effects: The temperature effect on the transmitter, capillary, and seal is detailed, with specific values provided for different diaphragm diameters and process connections. The system is designed to compensate for temperature variations, ensuring accurate measurements.
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Catalog excerpts

BF-LGP - Low gauge pressure chemical seal with flush diaphragm-1

For technical data sheets and dimensional drawings please refer to our website www.badotherm.com 03/09/2007 rev 2-B 192 chemical seals 3.1.1. typical “BF-LGP” seal applications to combine with industrial process transmitters. for very low, highly accurate pressure measurement from 0-10 mbar. temperature compensated. chemical seal BF-LGP flush diaphragm, flanged, low gauge pressure ASME B 16.5 DIN 2501 (EN 1092-1 ) 3” / 4” Other sizes acc ASME 150 / 300 # RF FF, groove, RJ, RTJ Ra 3.2…6.3 ìm Other finishes DN80 / 100 Other sizes acc DIN PN10 / 25 / 40 Form D-Din2526, (Form B1) Other types and finishes JIS On request Process connection Standard Options Wetted parts Standard Options Flange AISI316 (L) Custom design Diaphragm (weld in process) AIS316L Instrument connection Standard Options Capillary tubing side entry Features Standard Options Capillary tubing AISI316 Side entry Armoring AISI304 PVC sleeve black Polyolefin sleeve black Polyolefin sleeve white Filling fluid BSO22 Others see page 171 Diaphragm AISI316L On request Full welded construction All instruments Flushing rings For all DIN, ANSI flanges Temperature compensated Standard Support pipe Heavy duty type Calibration on process conditions All instruments Hydrogen applications Gold coating All AISI316 diaphragms Special coatings PTFE, FEP, ECTFE, PFA technical specification model BF-LGP Flanged connection ASME 1” 1 1/2” / 2” 2” 3” 4” DIN DN32 DN40/50 DN50 DN80 DN80/100 Diaphragm size in mm 72 72 Max. capillary length in meter 15 15 Min. pressure range for PI in bar n.a. n.a. Min. span for GP in mbar 10 10 Min. span for DP in mbar n.a. n.a.

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BF-LGP - Low gauge pressure chemical seal with flush diaphragm-2

For technical data sheets and dimensional drawings please refer to our website www.badotherm.com 01/01/2006 rev 2 193 3.1.1. chemical seals minimum ranges for gauges and transmitters per diaphragm Diaphragm diameters dD Min. span in mbar Min. range in bar For process connections For transmitters For pressure gauges PI Diaphragm Flange Flange Ø 63 Ø 100 Ø 160 72 mm DN80 3” 10 mbar n.a. n.a. n.a. 72 mm DN100 4” 10 mbar n.a. n.a. n.a. temperature effect on transmitter, capillary and seal Diaphragm diameters dD Temp. effect in mbar Temp. effect in mbar For process connections For AP transmitters...

 Open the catalog to page 2

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