Flanged NACE Regulator For Sour Gas Analysis
The LF311 is a single-stage regulator with a solid disk seat design to allow various seating options, such as PCTFE and PEEK, for aggressive and high temperature applications.
This specially adapted ANSI-flanged pressure regulator has been developed for use on Sour Gas installations for Saudi Aramco. By removing the need for high pressure NPT instrumentation lines, and connecting directly to the process line, it crucially eliminates the potential for leak paths. The flanged LF311, also includes a large piston-sensed element for use with Hydrogen; it protects against the risk of Hydrogen embrittlement and provides excellent pressure control to the gas analyser system.
300bar (4,350psig) supply pressure*
35bar (500psig) max outlet range
NACE material MR0175
All 316SS machined wetted parts and spring enclosure Non-venting
Unbalanced main valve
Port size: 1/4˝ NPT
Optional anti-tamper cover
40 micron inlet filter
ATEX/IECEx heated pressure regulator version also available
*Determined by flange rating
Potential leak paths eliminated due to the flanged inlet connection straight to the process line
Unauthorised adjustment is prevented by the optional tamper-proof cover
Large sensitive piston element provides accurate and repeatable control whilst being exceptionally strong and safe on Hydrogen/H2S mix
H2 Recycle Gas Compressor - specifically required an inlet pressure of 160-225bar (2300-3300psig) with an outlet pressure of 4bar (60psig). Sampling a gas composed of Hydrogen 92%, H2S 2.5% and natural gas, the regulator was designed to NACE MR0175 with inlet connections of 1/2˝ ANSI 1500# RF and outlet 1/4˝ NPT.
Tel: +44 (0) 1457 899 307
Published: 14th September 2017
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