Instrumentation Tubes

Instrumentation tubes for impulse lines, analyzer panels, and control systems.

Kaizen supplies instrumentation tubing where tight dimensional control, clean internal surface, and dependable corrosion resistance are important for safe signal and media transfer.

Precision small OD supply Clean annealed condition Control and analyzer service
Material Standards

Instrumentation Tubes grades and material families.

Open the relevant section to review the common standards, grades, and service focus normally associated with this product category.

Stainless Steel

  • Standards: ASTM A269 / A213 / A632
  • Grades: 304/304L, 316/316L, 321 and selected instrumentation grades
  • Material Coverage: Austenitic stainless small-bore tube ranges for clean and corrosive media
  • Use Focus: Analyzer lines, impulse tubing, and clean process control systems

Duplex & Nickel

  • Standards: ASTM A789 / ASTM B163 / B423 / B444
  • Grades: Duplex 2205, super duplex, Inconel, Incoloy and Monel families
  • Material Coverage: Duplex and nickel alloy tubing for more severe corrosion exposure
  • Use Focus: Chloride, sour, or higher corrosion-risk environments

Supply Condition

  • Condition: Annealed, bright annealed, pickled and passivated where applicable
  • Tolerance Focus: Controlled OD, wall, and straightness for fitting compatibility
  • Size Review: Small OD and thin wall combinations are matched to control line service
  • Execution: Coiled or straight length supply can be reviewed

Documentation

  • Release Data: MTC, heat traceability, and test review remain part of supply release
  • Testing: Eddy current, hydrotest, and PMI may be considered as required
  • Project Fit: Final scope depends on tubing size and end connection philosophy
  • Coverage Note: OD, wall, and finish are verified against fitting and panel requirements
Material Overview

Instrumentation tubing with compact technical detail.

Instrumentation tubes are normally chosen where line cleanliness, reliable fitting make-up, and stable corrosion performance are needed in compact process systems.

  • Tube OD and wall selection are matched to pressure rating and fitting system.
  • Material grade is reviewed against media compatibility and ambient or process exposure.
  • Straightness and surface finish are checked for trouble-free installation.
  • Packing and capping condition are planned to help protect clean bore quality.
Product Split

Primary instrumentation tube formats in our supply scope.

  • Straight length instrumentation tubes
  • Coiled instrumentation tubing
  • Bright annealed stainless tubes
  • Duplex and super duplex small-bore tubes
  • Nickel alloy impulse and analyzer tubing

Dimensional capability

Parameter Typical Range Notes
Outside diameter1/8 in to 1 inMetric and inch sizes can be reviewed
Wall thickness0.5 mm to 3 mmDepends on pressure class and fitting standard
LengthStraight lengths and coilsPacked to protect OD finish and bore cleanliness
Wall RangeThin wall precision combinationsMatched to fitting make-up and pressure duty
FinishAnnealed, bright annealed, pickledSelected to suit application and fitting requirement
Inspection

Inspection and testing scope.

  • Visual and dimensional inspection
  • Eddy current or hydrotest as applicable
  • PMI for alloy and stainless orders
  • Surface condition and end protection check
  • Heat number traceability review
Documentation

Documents reviewed before dispatch.

  • Mill test certificates
  • Dimensional inspection report where required
  • PMI or NDT record if specified
  • Packing list and traceability support

Compatibility

Tube size and wall are reviewed against fitting system, pressure rating, and installation environment.

Supply Condition

Clean capped ends, annealed condition, and controlled packing help maintain tubing quality during handling.

Applications

Used across analyzer panels, instrument air systems, hydraulic impulse lines, and process signal tubing networks.

RFQ Path

Send size, grade, quantity, and inspection requirement for instrumentation tubes.

Our team reviews product form, material grade, dimensions, testing scope, and delivery schedule before issuing the technical offer.

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