Patent ID: 9726297
Date: 2017-08-08
CPC Classifications: F16K,Y10T

Claim:
1. A relief valve for controlling fluid flow comprising: an inlet portion; a stem; a poppet coupled to the stem, the poppet being configured to occupy a plurality of open positions where the poppet is disengaged from the inlet portion to enable fluid flow through the inlet portion into the relief valve, and to occupy a closed position where the poppet engages the inlet portion to prevent fluid flow through the inlet portion into the relief valve; a bias member configured to bias the poppet toward the closed position; and a locking assembly configured to prevent the poppet from occupying the closed position; wherein the inlet portion defines an inlet void configured to accommodate fluid flow, and at least a portion of the poppet is wider than a diameter of the inlet void closest to the poppet.