星城web

Specification ES-3.43
The purpose of this document is to describe the materials and methods 星城web uses to clean electronic valves (EC, ET, EV and EW Series) intended for use in analytical environments.

General
鈥⑻� 听Valves are designed with reduced leak paths.
鈥⑻� Parts are cleaned, assembled and tested in an enclosed room (鈥淐ontrolled Area鈥�) that is kept under positive pressure with HEPA filtered air.
听听听听听听听 (Seals are cleaned and out-gassed in a separate area.)
鈥⑻� 听Access to Controlled Area is restricted to trained 星城web personnel.
鈥⑻� 听Gloves are used to handle all cleaned parts.
鈥⑻� 听All assembly tools and test equipment are designed and cleaned to avoid contamination of product.

Cleaning
鈥⑻� 听All parts are cleaned to normal production standards before being brought into the Controlled Area.
鈥⑻� 听Seals are cleaned ultrasonically with high purity alcohol, then heated to outgas.
鈥⑻� 听Non-elastomeric parts are ultrasonically cleaned in a heated aqueous cleaning solution for at least 10 minutes.
鈥⑻� 听Parts are rinsed in purified water, then dried with heat and/or forced (ambient) air or compressed nitrogen.

Post-Cleaning Inspection
鈥⑻� 听Cleaned parts are inspected under white and ultraviolet light to insure the absence of particulate and hydrocarbon contamination.
鈥⑻� 听After inspection, parts are either assembled immediately, or bagged and labeled as clean for later assembly.

Lubrication
鈥⑻� 听Components are lubricated with isopropyl alcohol, only as needed for assembly.

Assembly/Testing
鈥⑻� 听All assembly tools and test equipment are designed and cleaned to avoid contamination of product.
鈥⑻� 听Assembled valves are tested using compressed Nitrogen.
鈥⑻� 听Valves are pressure decay leak tested.

Packaging & Identification
鈥⑻� 听Finished valves are double bagged in heat sealed polyethylene bags and labeled 鈥淎nalytically Clean.鈥�

Usage Notes
鈥⑻� 听Valves should remain in their sealed bags until ready for assembly.
鈥⑻� 听Care must be taken to avoid contaminating parts during assembly.
鈥⑻� 听星城web reserves the right to change this specification without notice.
鈥⑻� 听Purchaser assumes complete and total responsibility and liability for any and all penalties, remedies, or any other form of claim arising from the installation and/or use of this product.
鈥⑻� 听The extent of 星城web鈥檚 liability shall not exceed the cost of the actual part and/or part replacement as stated in 星城web鈥檚 standard terms and condition of sale.