Y check valve

Claim 1

In a check valve, the combination comprising: a housing having two converging inlet passages and an outlet passage in communication therewith, the axes of the passages generally defining a ''''Y''''; a pair of annular valve seats formed within the housing at the respective ends of the inlet passages; a mounting bracket positioned within the outlet passage intermediate the inlet passages and secured to the housing; a rod positioned and received by the bracket, a pair of arms connected to the rod such that each arm is freely pivotable thereabout; a pair of valve discs respectively secured to the arms for respective pivoting movement about the axis of the rod between seated and fully open positions, the valve discs sealingly engaging the valve seats in the seated positions thereof for checking a reverse flow through the outlet passage; an extension integral with the bracket and projecting therefrom; two integral abutments respectively formed on the arms, the extension and the abutments being in contact when the valve discs are in the fully open positions to limit further pivoting of the arms, the valve seats and the exTension limiting the respective arcs traversed by the valve discs between seated and fully open positions to substantially less than 90*; and spring means to urge the respective arms away from the discs to provide for angular alignment freedom of the discs with respect to the seats.