Quality Engineered Structures Process Piping Image 1
image

Cleanroom Process Piping Systems
High Purity Delivery Methods for Process Gases and Liquids

Quality Engineered Structures Process Piping Image 2 Florida Modular Office & Partition Systems design and engineers, high purity process piping systems for gases and liquids. High purity piping systems are integral components of most cleanroom systems. Stainless steel, and polypropylene, piping systems are required to deliver pure liquids and gases to process areas and equipment. Double wall piping systems are required for some hazardous chemical or nitrogen installations. Requiring specialized engineering, installation, and certification these systems must be installed and maintained by companies familiar with the cleanroom industry specifications.

High purity piping systems must be engineered and installed to The Construction Specifications Institute specification 15481. This specification, in conjunction with the design drawings and other contract documents, specifies materials and operations for the installation and acceptance of ultra high purity gas distribution systems including tubing, fittings, valves, regulators, welding equipment and all required QA/QC acceptance testing. High purity piping materials specialists and QA/QC technicians must be fully trained in clean-room protocol and safety.


High Purity Piping Materials
  • Stainless Steel is manufactured to the stringent ASME BPE and ASTM A270 S2 specifications, this high quality tubing is 100% bore-scoped and mechanically polished on both the ID and OD. Finishing processes must guarantee specific ID and OD Ra values for customers application, minimizing surface anomalies.

  • Copper requires all surface (O.D. & I.D.) of all tube and fittings are to be mechanically/chemically polished to remove tarnish, stains and discoloration. After chemical polishing, all components are to be rinsed in D/I water for final cleaning to remove and trace of hydrocarbon residue and particulate contamination. All surfaces are to retain a uniform finish that resists re-tarnishing. Tubing is to be purged with filtered (.2 micron absolute) nitrogen from a cryogenic source.

  • Natural Polypropylene pipe shall conform to the requirements of ASTM D-2837- 85 for establishing a hydrostatic design basis. In addition, the pipe shall have a standard dimensional ratio of SDR 11 and shall be pressure rated to 150 psi at 73.4° F for all diameter sizes (1/2" through 4" nominal diameter). Pipe shall be provided clean and individually capped and sealed in bags.


High Purity Piping Liquids and Gases
  • High Purity Air Systems The wide-spread use of compressed air has resulted in increased contamination vulnerability and industry, as a consequence, has been subject to strict regulation and standards. In this context, ISO-8573 is the most important international standard. The standard specifies quality requirements for all compressed air and part 1 specifies the purity classes of compressed air with respect to particles, water and oil. The standards vastly increase the operating and maintenance costs of compressed air systems along with the tremendous risks associated with an air contamination. The consortium aims to develop and market a sensor element platform to verify the presence of oil contamination according to ISO-8573:1.

  • High Purity Water Systems deionized (DI) water have been the most common forms of purified water, but water can also be purified by other processes including reverse osmosis, carbon filtration, microfiltration, ultra filtration, ultraviolet oxidation, or electrodialysis. In recent decades, a combination of the above processes have come into use to produce water of such high purity that its trace contaminants are measured in parts per billion (ppb) or parts per trillion (ppt).

  • Medical Gases Oxygen [O2], Nitrous Oxide [N20], Medical Air [AIR], Nitrogen [N2], Carbon Dioxide [CO2], Waste Anesthetic Gas Disposal [WAGD] and Medical Vacuum [VAC].
  •  Ethylene oxide (EtO) for terminal sterilization requires the use of ethylene oxide (EtO) gas and has long been a dominant mode of terminal sterilization. Today, close to half of all medical devices produced in the United States are processed with EtO.

More...Next Article