DOCUMENT

SPEC - 8-Inch Plug Valves 2009

  • YEAR CREATED: 2009
  • ENTITY TYPE: Utilities
  • TYPE OF DOCUMENT: SPEC - Specification
The document is a purchase specification for 12 eight-inch plug valves to be used at the Walnut Creek Wastewater Treatment Plant. The valves must be the flanged offset disc type, non-lubricated, and capable of sealing in both directions at the rated pressure. The valves must include new gaskets and come as one complete unit with the actuators. The valve's actuator must have a 12" diameter hand wheel and the gearing must be enclosed in a cast iron housing. The valve must be flanged and faced and drilled to the ANSI 125/150 lb. standard. The body of the valve must be cast iron with a welded overlay seat of pure nickel. The bearings must be sleeve type metal bearings and the plug must have a cylindrical seating surface eccentrically offset from the center of the plug shaft. The shaft seal must be multiple V-ring type and externally adjustable. The Contractor must provide two copies of an operation and maintenance manual. Delivery must be made within 6 to 12 weeks and the Contractor must provide a minimum 12-month warranty. The invoice must include the Contractor's information, the City's contract number, date of delivery, location of delivery, and itemized description and pricing.
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