A-A-50558 Valves, Pressure Regulating, Steam No S/S DocumentThis commercial item description covers steam pressure regulating valves that transform steam from a specified initial pressure to a specified final reduced discharge pressure or range of pressures. The specified inlet steam pressures range from 15 pounds per square inch gage psig to 1,500 psig 103 kiloPascals gage kPagage to 10,343 kPagage. The steam pressure regulating valves covered by this commercial item description are intended for transforming steam from a specified initial pressure to a specified final reduced discharge pressure or range of pressures in steam systems.

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A-A-50558

4.  REGULATORY REQUIREMENTS

4.1  Materials.  The offeror/contractor is encouraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR).  Unless otherwise specified herein, all equipment, material, and articles incorporated in the work covered by this commercial item description are to be new.  They are to be fabricated using materials produced from recovered materials to the maximum extent possible without

jeopardizing the intended use.  The term "recovered materials" means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials.  Unless otherwise specified, none of the above shall be interpreted to mean that the use of used or rebuilt products are allowed under this commercial item description.

4.2  Metric products.  Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, provided they fall within specified tolerances using conversion tables contained in the latest version of Federal Standard No. 376,

and all other requirements of this commercial item description including form, fit, and function are met.  If a product is manufactured to metric dimensions in the inch-pound units, a request should be made to the contracting officer to determine if the product is acceptable.  The contracting officer has the option of accepting or rejecting the product.

5.  QUALITY ASSURANCE PROVISIONS.

5.1  Contractor certification.  The contractor shall certify and maintain substantiating evidence that the product offered meets the salient characteristics of the commercial item description.  The product must conform to the producer's own drawings, specifications, standards, and quality assurance practices.  The same product must be offered for sale in the commercial marketplace by a nationally recognized brand found in standard vendor catalogs.  The government reserves the right to require proof of such conformance prior to first delivery, and thereafter as may be otherwise provided for under the provisions of the contract.

6.  PACKAGING.  Preservation, packing, and marking shall be as specified in the contract or order (see 7.2).

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