Valves and Appurtenances Clause Samples

Valves and Appurtenances. ‌ Resilient seated gate valves shall be used for water mains twelve-inch and smaller. Gate valves shall meet the requirements of AWWA C509 or C515 and shall have epoxy lining and coating according to AWWA C550. Butterfly valves will only be permitted when gate valves may not allow adequate “surface to operator nut” clearance. Rubber seated butterfly valves shall be used for water mains larger than twelve-inch. Butterfly valves shall meet the requirements of AWWA C504, Class 150B shall have epoxy lining and coating according to AWWA C550. Shaft seals shall be standard O-ring seals, designed for replacement under line pressure. Isolation valves will be installed on all City mains at intervals no greater than 500 linear feet. At water main intersections, two valves shall be installed on a tee fitting and three valves shall be installed at a cross fitting. Submittal data will be required for all valves installed in the City system. Valve boxes will be cast iron Tyler model 6855 or approved equal. Valve extensions are required if the valve nut is deeper than 36” from finish grade.

Valves and Appurtenances. The details and specifications of the various types of valves and appurtenances to be used in the distribution system are contained in this subsection.

Valves and Appurtenances. 3.1 Handling, aligning and installing in true to line and level cast iron PN 1.0 rated double flanged Sluice Valves (IS 14864) of the following diameters. This item includes transportation of valves and accessories from the store yard to the project site, loading, unloading, hoisting, lowering, assembling and jointing including the cost of all jointing materials such as rubber gaskets, nuts, bolts, etc., and providing temporary supports, as per the specifications and drawings. (a) 100 mm dia Nos. 4.00 (b) 150mm dia Nos. 1.00 (c) 200 mm dia Nos. 2.00 (c) 300 mm dia Nos. 1.00 3.2 Supplying of following diameters Pressure Reducing valve with double flanged ends and shall including anti corrosive painting etc. al! complete. The rate shall include all local and central taxes, third party inspection, transportation, freight charges, loading and unloading, conveyance to store yard and stacking the same, with cost of all labour, and material. The item shall be as per specification, drawing and as directed. (a) 400 mm Dia PN1.6 Nos. 1.00 3.3 Handling, aligning, and fixing in true to line and level following diameters Pressure Reducing valve double flanged ends. The item includes transportation of valves and accessories from store yard to site, loading, unloading, hoisting, lowering, grinding wherever necessary, assembling and jointing, including cost of jointing materials such as rubber packing, nuts bolts etc., providing temporary supports, all complete with approved equipment, for all leads and lifts. The item shall be as per specification, drawing and as directed. (a) 400 mm Dia PN1.6 Nos 1.00 3.4 Handling, aligning, and fixing in true to line and level following diameters and rating double flanged Butterfly valves . (manually operated as per IS 13095) including cost of required jointing material such as rubber packing, nuts bolts etc. The item includes transportation of valves and accessories from store yard to site, loading, unloading, hoisting, lowering, grinding wherever necessary, assembling and jointing, providing temporary supports etc., all complete with approved equipment, for valves of following diameters, for all lead and lift. The item shall be as per specification, drawing and as directed. (a) 500 mm dia Nos 1.00 3.5 Supply & installation of Electromagnetic flowmeter, manufacturer should have ISO 9001:2008 certification and flow meter testing confirming to ISO 17025; Flow meter tube: SS304; Flanges: carbon steel as per DIN PN10 or higher rating as p...