Piping. Water supply and drain piping shall be type “L” copper and insulated with “Arma-Flex” ¾” nominal wall thickness closed cell foam insulation. Supply piping to
Piping. Scope Deviation and Change report
Piping. TS-945 Each part of the piping systems shall be complete in all details and provided with all control valves and accessories necessary for satisfactory operation. TS-946 The drawings indicate generally the sizes of all main piping, and while the sizes are not to be decreased the Managing Official reserves the right to change the runs and sizing of piping to accommodate conditions arising during construction. TS-947 All pipe work, valves, fittings etc. are to be as detailed for various services in the Schedules. TS-948 All piping shall be grouped wherever practical and shall be erected to present a neat appearance. Pipes shall be parallel to each other and parallel or at right angles to structural members of the building and shall give maximum possible headroom . TS-949 All pipe drops shall be truly vertical, drain piping shall pitch down in direction of flow, and all pipework shall be installed with a continuous gradient to allow natural circulation, air venting and drainage. Levels are to be approved by the Managing Official. TS-950 Run outs shall be graded in such a manner as to prevent air traps being formed within them when the mains expand or contract.
Piping. Drain Valves shall have bolted or welded bonnets.
Piping. All materials for piping, valves, fittings, pressure vessels, and associated piping components shall conform to the applicable ANSI Codes. All power piping shall conform to ANSI B31.1 piping codes. Valves shall be appropriate for the pressures and temperatures of each specific application. Gate valves shall not be used for throttling. ANSI Class 125 valves are not acceptable, except for potable water plumbing and circulating water system. All power piping, valves, and fittings shall be insulated using materials consistent with the overall quality and design of the Facility. Insulation shall provide for the expansion and contraction of the piping as will occur during off-line and on-line Facility modes. Seller shall provide adequate pipe support systems to allow pipe expansion, contraction, and appropriate seismic loads, if any. Supporting straps around pipe flanges or valves are not acceptable. Anchors will be attached to pipes by approved means. Where pipe runs pass through open penetrations, floors, or walls, either individually or collectively, floor or wall collars or other approved curbing shall be provided. Floor collars shall extend to an approved height. Each pipe shall be fitted at the ends to prevent the ingress of dirt during transportation and storage. Care shall be taken during final assembly and commissioning that pipes are cleaned and free of grit, scale, jointing material, and/or tools. Domestic water piping material shall be in accordance with applicable plumbing code and suitable for the well water chemistry. Compressed air piping between air compressors and air dryers shall be galvanized carbon steel, copper, or stainless steel. Compressed air piping downstream of air dryers (instrument air) shall be copper or stainless steel. Other compressed air piping downstream of the receiver(s) (service air) shall be stainless steel, galvanized carbon steel, or copper. HDPE may be used for any underground compressed air piping, if approved by Purchaser. Instrument air branches shall be taken from the top of the mains. Service air branch pipe to points of use shall terminate in positive locking Xxxxxxxx-type hose coupling. Piping may be routed on overhead pipeways or sleeperways; it may be supported from the building structure using pipe supports or rod hangers; or it may be buried. Space for electrical and instrument conduit runs shall be provided on the pipeways and sleeperways as required. Underground piping shall be provided with adequate corros...
Piping. Job Site
Piping. Shall be in accordance with ASTM and ASA standards. Piping and equipment shall be 300# rated for hot and chilled water lines. Di-electric fittings required wherever dissimilar metals are joined to reduce electrolysis failures.
Piping. Dry stand pipe
Piping. This item consists of the necessary piping, pumps and controls to convey the precipitator flyash from the precipitator hoppers by way of a dry vacuum system to the flyash silo. From dry flyash silo, flyash is transported wet by way of piping to the above noted flyash storage ponds.
Piping. This item includes the necessary piping to sluice the bottom ash slurry from the hoppers to the bottom ash receiving ponds. Also included are the piping and pumps required to return the water to the plant for reuse in this ash system.
