ITB-RS-2016-033 - Venturi Flow Meter Purchase

Summary of Specifications:
Scope of Project: Manufacturing and delivery of twelve (12) Cast Iron Full Body Venturi Flow Meters per the outlined specification. A mandatory site visit is required for all bidders. Product: The flow meter shall be a short form Venturi design utilizing pure static pressure taps in the inlet and throat sections and shall produce a differential pressure, which shall be measured and transmitted by the specified differential pressure transmitter. Tube Design: The Venturi meter shall have a cylindrical inlet section of the same inside diameter as the inlet piping and shall contain two high pressure taps and single vent and drain taps. The cylindrical throat section shall contain two low-pressure taps. The length of the cylindrical throat section shall be equal to one-half its diameter. The converging section shall be comprised of a single angle of 30 degrees. Converging sections using a radius or multiple inlet angles will not be accepted. The recovery section shall be comprised of a single angle of 10 degrees and shall be truncated at approximately 90% of the downstream pipe inside diameter. The Venturi shall be provided with AWWA type 125 pound flanged ends unless otherwise specified. Materials: The Venturi meter body shall be cast iron per ASTM A-126, Gr. B and the foundry shall be located in North America. The throat section and pressure tap bushings shall be 304 stainless steel. The interior of the cast iron surfaces of the Venturi shall be coated with NSF-61 2-part epoxy suitable for potable water contact. The exterior surfaces shall be coated with shop primer. The Venturi shall be provided with certified mill test reports on the materials used. Please see attached documents for additional information and instructions.