Patent ID: 7210460

Claim:
A bypass pressure regulator communicating with a conduit for flowing liquid, the bypass pressure regulator comprising: a body; a valve chamber defined by the body and disposed concentrically about a center axis, the valve chamber having a bypass outlet port; an inlet and an outlet continuously communicating with the inlet; a seat carried by the body, communicating with the inlet and defining in part the valve chamber; a continuous inner surface carried by the body, defining in part the valve chamber, concentric with the center axis, disposed axially downstream of the seat and radially expanding downstream of the seat; a biased closed and enlarged valve head disposed at least in part in the valve chamber, the valve head being in sealed contact with the seat when the valve head is in a closed position to prevent liquid flow through the valve chamber and spaced axially away from the seat when the valve head is in an open position to permit liquid flow through the valve chamber and the bypass outlet port; and a peripheral outer edge of the valve head radially fitted closely to the continuous inner surface when the valve head is in the closed position.