With its industry sources and buying power, CSI has been providing new ‘surplus’ and high quality used or refurbished components to budget savvy customers for over 12 years.  Our inventory is from the leading manufacturers in the industry: Swagelok, Parker, BAR, Hamlet, APTech, Veriflo, Tescom, George Fisher, Asahi, Valex, Cardinal, Wika, Pall, Mykrolis, Entegris and many others. Contact us today for pricing and availability on your requirements for any of the following: Pressure Control: Pressure Regulators Diaphragm Valves Mass Flow Controllers Pressure Measurement: Pressure Gauges Transducers Flow Meters Pressure Conditioning: Gas Filtration Gas Purification Liquid Filtration   Pressure Containment: Electropolished Tubing Coax Tubing EVAC Tubing Teflon...

With our wide range of industry sources and buying power, we regularly provide fast turnaround and substantial savings on these filtration solutions: HEGA Filters (High Efficiency Gas Absorption) Filters for Acid & Amine Removal Filter Fan Units ULPA HEPA (99.97% & 99.99% Efficient) Final Filters 85% & 95% Efficiency Filters MERV 7, 8, 11 & 13 Pleated Inlet Air Filters Bulk Weather Resistant Filter Media Filter Housings A properly designed Clean Room Air filter system saves significant money by optimizing the mix of filters and their associated pressure drops. Factors in determining this mix include: Set up lower cost filters as...

CSI's CFOS-1000 product is produced from the highest quality tubing mills in the world.  Our CFOS-1000 process is state of the art and exceeds the standards set by the Compressed Gas Association requirements under Pamphlet CGA G4.1 and ASTM G93 for cleaning requirements related to 'Cleaned for Oxygen Service' applications. CFOS-1000 is made of 316L Stainless Steel and is manufactured to ASTM A269 / A213.  Standard Size Ranges are (1/4″ inch) through (1 inch) Outside Diameter. Other sizes are available upon request. Critical Systems has developed a Nitric Acid Passivation Process that not only removes the harmful free metals and hydrocarbons from...

CSI acquires new “surplus” Ultra High Purity and O2 Clean, Stainless Steel, VCR, Tubular and Micro fittings from many sources around the country. Our inventory consists of Swagelok, Parker, Ham-Let, BAR as well as Valex, Cardinal and many others ranging in size from 1/4″ to 6″. All Fittings are still in their original packaging. Buy High Purity Components Here....

To serve our client's needs for exhaust vacuum lines from process tools through vacuum pumps to scrubbers, Critical Systems offers an in-stock, low cost supply of Vacuum Tubing, Fittings, Clamps, Bellows and Valves. Typically stocked in sizes from 3/4" through 4" and larger, CSI's Gas SystemVacuum Components are offered in 304 and 316 stainless steel. KF, NW and ISO flanges are stocked as well as weld fittings with short tangents suitable for hand welding as well as long tangents for orbital welding. Critical Systems Offers Fabricated Exhaust Line - CSI offers pre-fabricated assemblies for those customers looking for a fast, high...

Through sources and buying power, Critical Systems has a large inventory of new ‘surplus’ as well as used gas gauges and transducers from professionally decommissioned gas cabinets and other gas delivery systems.  Consequently, we can offer new gauges and transducers for a substantial savings over the distributor ‘street price’, and used components for much less. CSI carries gauges and transducers from top manufacturers, such as MKS Instruments, Wika, Precise Sensors, U.S. Gauge, SPAN Instruments, and others. Buy High Purity Components Here....

“DISS” is an acronym for “Diameter Index Safety System.” DISS connections including nipples, gaskets, adapters, caps, nuts, and plugs.  The nipples are unique to the specific model number for your gas.   The nut covers a range of DISS nipples.  The DISS Gasket which Critical Systems produces is common for all DISS fitting connections as the way in which the connection interface or the “Torroid” surface on each side of the fitting will compress into the metal surface of the DISS Gasket, so they will always operate in the same safe, effective manner.  The technical expertise involved in the research,...

Through sources and buying power, Critical Systems carries a large inventory of new ‘surplus’ as well as used Regulators for Gas Delivery Systems.  Consequently, we can offer these components for a substantial savings over the distributor ‘street price’.   CSI offers regulators from APTech, Tescom, Veriflo. We carry a wide array of VCR and Compression Regulators in ¼” through ¾”.  Two and four port configurations are available. New Regulator Inventory Critical Systems acquires and offers a wide selection of new ‘surplus’ high purity gas regulators from various sources across the country. All inventory is “new in the box”, enabling CSI to offer pressure...

Through sources and buying power, Critical Systems carries a large inventory of new ‘surplus’ as well as used High Purity and Instrumentation Valves.  Consequently, we can offer gas valves  for a substantial savings over the distributor ‘street price’. CSI offers Diaphragm Valves, Bellows Valves, High Purity Ball Valves, Check Valves and more. End connections are tube stub, VCR and compression. Our inventory is from the largest manufacturers, including APTech, Tescom, Veriflo, Nupro, Hamlet and Parker. New Valve Inventory Critical Systems acquires and offers a wide selection of new ‘surplus’ UHP valves from various sources across the country. All valve inventory is “new...