What we buy
Eight categories, and the parts inside them are most of the business. If you can photograph the nameplate, we can tell you what it is worth.
FID hydrocarbon analyzer · H₂ fuelled · 10,000 ppm range
Gas Analyzers & CEMS
Continuous emissions monitors and process gas analyzers, whole or for parts. A dead analyzer is still worth real money for what is inside it.
Thermo Environmental / TECO · Teledyne API 200 and 300 series · CAI 600 series NOx and tri‑gas · Servomex 1440 paramagnetic · Siemens · Fuji Electric · FID hydrocarbon analyzers
Analyzer Spares & Boards
The largest part of what we buy. A shelf of unopened spares is often worth more than the instrument it belonged to.
Scrubber assemblies · motherboards and preamp boards · detector and sensor boards · IR source assemblies · critical flow orifices · sintered filters · o‑ring and rebuild kits · i‑series data plugs
Sample & Vacuum Pumps
Sample pumps out of analyzer racks, skids and lab benches. Working, seized or stripped for the motor and the heads.
Air Dimensions Dia‑Vac · Gast rotary vane and diaphragm · Thomas · KNF · Parker miniature diaphragm · Dekker · rebuild kits, heads and motors
Flow, Pressure & Temperature
Field and panel instrumentation from plant upgrades, calibration benches and testing firms.
Dwyer flowmeters and Minihelic gauges · Meriam manometers · Setra differential transducers · McMillan flow sensors · Ashcroft gauges · Omega thermocouple hardware
Gas Handling & Conditioning
Everything between the cylinder or the stack and the analyzer inlet.
Perma Pure Nafion dryers · Baldwin heated probes and lines · Scott Specialty Gases regulators · CGA fittings · compressed air dryers · sample conditioning · Condor pressure switches
Valves, Fittings & Consumables
Small hardware in any quantity, sealed or opened. Do not throw out a drawer of fittings without asking.
Needle and metering valves · Parker solenoid valves · CGA and NPT fittings · Whatman QMA quartz microfiber · Millipore glass fiber · TCLP filters
Lab & Analytical
Bench instruments from labs that are consolidating, relocating or closing.
Barnstead water purification · Jenco meters · Pyrex and VWR glassware · balances · pH and conductivity · sample preparation hardware
Controls, Recorders & Data Logging
Control hardware and recorders, including boards for systems the manufacturer has dropped.
Allen-Bradley PLC hardware · Honeywell controllers and recorders · portable data loggers · GRALEX digital panel meters · Technical Heater controllers · Fuji controllers · signal conditioners
Not sure if yours qualifies?
My model is not on this list. Do you still want it?
Almost certainly. This page shows the nameplates that come through most often, not a limit. If it is process instrumentation, analytical equipment or the hardware around it, send a photo of the tag and we will tell you.
Do you buy a single item?
Yes. A single board or a single valve is welcome, and so is a pallet of mixed boxes nobody has opened in ten years.
What is a shelf of old spares actually worth?
More than most people expect. Parts are the majority of what we buy, because a plant running a discontinued analyzer needs a detector or a board and the manufacturer will not sell them one. Sealed and unopened is best, but opened stock still sells.
Is there anything you will not buy?
Instruments contaminated with hazardous material. That is the one thing we turn down outright. If a unit carried a hazardous process gas or residue, say so up front, because it has to be resolved before anything can move. Everything else is worth asking about, including equipment that is not instrumentation at all if it comes as part of a lot.