... mass transfer operations , S&Y design and supply valves, fittings, flanges, expansion joints, Molded Teflon? Connectors have wide application for the chemical processing ... Available in three different lengths, in two , three, or five bellows style. Molded of PTFE material for long life and extreme ... up to 170 psi. Temperatures up to 400°F. Standard pipe sizes range from 1" through 12". If you require ...