Instrument Installation and Impulse Tubing
P1 batch 3: knife gate valves, water storage tanks, water wells, cathodic protection and instrumentation cable now owned; bare-text mentions re-pointed to the new standards
Showing changes from Rev 2
to Rev 3
in Instrument Installation and Impulse Tubing.
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title: Instrument Installation and Impulse Tubing
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When to use: The "last-mile" mechanical infrastructure that connects any field process instrument (pressure, differential-pressure, flow, and level) to a live process — primary process connections (taps, root valves, flanged connections at the pipe or vessel), instrument isolation manifolds (2-valve block-and-bleed, 3-valve, and 5-valve DP manifolds), impulse tubing and piping runs from the root valve to the instrument, tube and compression fittings, supports and clamps, condensate and seal pots, purge connections, heat-tracing provisions, and the blowdown/vent/drain valves on those lines. Applies across industrial process facilities, water and wastewater treatment plants, refineries, chemical plants, fossil-fuel power plants, and heavy industrial projects, and is the correct vehicle whenever a project needs an instrument piping/tubing specification separate from both the process piping spec and the instrument-selection spec.
− Not intended for: Instrument selection, range, accuracy, and signal output ([[sync/pressure-instrumentation]]); flow-element selection, DP-transmitter pairing, and straight-run ([[sync/flow-measurement]]); loop documentation, P&ID symbology, loop diagrams, transmitter power, and signal wiring ([[sync/process-instrumentation]]); modulating control valves, actuators, and positioners ([[sync/control-valves-and-actuators]]); bulk process piping beyond the root valve (project mechanical/process piping spec, ASME B31.3); instrument-air supply piping and pneumatic signal tubing (separate instrument-air standard); electrical conduit, cable, and junction boxes for field instruments ([[sync/raceways-and-conduit]], [[sync/conductors-and-cables]]); HVAC/BAS sensing connections ([[sync/building-automation-system]]); welding of process piping and tap nozzles ([[sync/welding-requirements]]); and identification of piping and equipment ([[sync/mechanical-identification]]).
+ Not intended for: Instrument selection, range, accuracy, and signal output ([[sync/pressure-instrumentation]]); flow-element selection, DP-transmitter pairing, and straight-run ([[sync/flow-measurement]]); loop documentation, P&ID symbology, loop diagrams, transmitter power, and signal wiring ([[sync/process-instrumentation]]); modulating control valves, actuators, and positioners ([[sync/control-valves-and-actuators]]); bulk process piping itself ([[sync/ductile-iron-process-piping]], [[sync/steel-and-stainless-process-piping]], and [[sync/plastic-process-piping]]); instrument-air supply piping and pneumatic signal tubing (separate instrument-air standard); electrical conduit, cable, and junction boxes for field instruments ([[sync/raceways-and-conduit]], [[sync/conductors-and-cables]]); HVAC/BAS sensing connections ([[sync/building-automation-system]]); welding of process piping and tap nozzles ([[sync/welding-requirements]]); and identification of piping and equipment ([[sync/mechanical-identification]]).
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## The Contractor shall coordinate the instrument selection and process connection with [[sync/pressure-instrumentation]] and [[sync/flow-measurement]].
−## The Contractor shall coordinate the loop documentation and signal wiring with [[sync/process-instrumentation]] and [[sync/conductors-and-cables]].
+## The Contractor shall coordinate the loop documentation and signal wiring with [[sync/process-instrumentation]] and [[sync/instrumentation-and-control-cable]].
## The Contractor shall coordinate the line identification with [[sync/mechanical-identification]].
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### Ferrule sets and manifold seal kits are the wear items most likely to be needed for a re-make or a packing replacement, so a small field stock keeps a single leak from becoming a procurement delay. {note}