Digester 1 Draft Tube Mixer 1 RDT (Center/Internal): DIG-MIX 70344 Digester 2 Draft Tube Mixer 1 RDT (Center/Internal): DIG-MIX 70348 PART 1 GENERAL 1.1 WORK OF THIS SECTION A. The Work of this Section includes providing the Sludge Mixers, specified motors, and all appurtenant work. B. Unit Responsibility: The Work requires that the mixers, complete with all accessories and appurtenances (including, but not necessarily limited to, shafting, safety guards, V-belt drives, and spare parts) be the end product of one responsible system manufacturer or responsible system supplier. The supplier shall furnish and/or coordinate all components and accessories as necessary to place the equipment in operation in conformance with the specified performance, features, and functions indicated. C. General Requirements: See GENERAL REQUIREMENTS, which contains information and requirements that apply to the work specified herein and are mandatory for this project. D. The Seller shall be responsible for verifying the conditions and dimensions of the existing mixer installation prior to fabrication of the new mixers. 1.2 SPECIFICATIONS AND STANDARDS A. Except as otherwise indicated, the current editions of the following apply to the Work of this Section: 1. ASTM A572, Standard Specification for Structural Steel. 2. ASTM A53, Standard Specification for Pipe, Steel, Black and Hot- Dipped, Zinc-Coated, Welded and Seamless. 3. ASTM A167, Standard Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet And Strip. 4. SSPC SP-10 - Steel Structures Painting Council Specification SP-10, Near White Blast Cleaning.
