PW - Ductile Iron Gravity Sewer Pipe

2026-11-03

This specificaƟon describes the requirements for bidding to supply DucƟle Iron Pipe ( DIP ) and related items for the 2026 construcƟon season . All supplied pipe and related items will be suitable for use as , direct burial , storm and sanitary sewer lines . Sec . 1 . 02 Storm Sewer : All DucƟle Iron Gravity Sewer Pipe – Iron Class CL52 Slip on joints pipes will meet :  ASTM A746 standard for DucƟle Iron Gravity Sewer Pipe  ANSI C150 and ANSI C151 for pressure classes  ANSI C104 for Cement Lining . Sec . 1 . 03 Sanitary Sewer : The Standard of Quality is Protecto 401 Ceramic Epoxy . The material shall be an amine cured novalac epoxy containing at least 20 % by volume of ceramic quartz pigment . Any request for subsƟtuƟon must be accompanied by a successful history of lining pipe and fiƫngs for sewer service , a test report verifying the following properƟes , and a cerƟficaƟon of the test results . A . A permeability raƟng of 0 . 00 when tested according to Method A of ASTM E - 96 , Procedure A with a test duraƟon of 30 days . B . The following test must be run on coupons from factory lined ducƟle iron pipe :  ASTM B - 117 Salt Spray ( scribed panel ) – Results to equal 0 . 0 undercuƫng aŌer two years .  ASTM G - 95 Cathodic Disbondment 1 . 5 volts @ 77 ° F . Results to equal no more than 0 . 5 mm undercuƫng aŌer 30 days .

Minnesota

2026-05-02