Profile: U.S. Pipe, Inc. offers a range of ductile iron pipe & fittings for the water and wastewater industries. We design Tyton Joint® pipe, which features quick & easy installation, high-pressure capability and available in sizes 4"-64". Our TR Flex® ductile iron pipe & fittings uses standard Tyton® gaskets, sizes 4"-24" suitable for 350 psi working pressures and 250 psi working pressures for 30"-48". We offer Usiflex ductile iron pipe, which features bottle-tight, flexible joint without the use of bolts, 350 psi for sizes 4"-12" and maximum joint deflection of 15 degrees.