The NIBCO Press System lug style butterfly valve provides bi-directional dead-end service without a downstream flange, and bubble-tight shutoff at 200 psi. The valve features press-to-connect end connections with an inboard bead and EPDM O-rings for quick and easy joinery to the piping system. Simply applying pressure from a press-fit tool tightens the O-ring onto the tube, ensuring a clean, permanent, watertight seal in seconds, with no flame, solder or flux.