Yokogawa GCRV-GBARS88N6181/A036/0B36

The GCRV-GBARS88N6181/A036/0B36 is a pneumatic rotary sample valve dedicated for Yokogawa GC1000 Mark II process gas chromatograph. As a core flow path switching component of the GCRV series, GBARS88N6181 defines the valve configuration, wetted material and sample volume specification, while the suffix A036/0B36 indicates gas connection dimensions and hardware revision. It executes automatic switching between sample gas, carrier gas and chromatographic columns to realize timed injection, column switching and backflushing functions in online chromatographic analysis cycles.

This rotary valve adopts high-precision pneumatic actuation with excellent switching repeatability. Its wetted parts are made of SUS316 with Viton seals, designed for industrial process gas conditions, supporting high-temperature heat tracing installation and corrosion-resistant performance for petrochemical and chemical sample media. It runs automatic periodic switching under the control logic of the GC1000 host, with no electrical contact parts, making it suitable for explosion-proof industrial field environments.

The GCRV-GBARS88N6181/A036/0B36 is widely applied in online process gas chromatography loops of petrochemical plants, refineries, natural gas stations and chemical facilities for continuous component concentration monitoring. The GC1000 Mark II platform has been discontinued, and this dedicated spare part is in the later stage of its product lifecycle. Most available units are original new or fully tested qualified spare parts for chromatograph overhaul and emergency valve replacement. Port count, interface size and heat tracing parameters must be verified before replacement to ensure compatibility with existing chromatographic flow paths.