MINIMUM CAVITY RELIEF VALVE

摘要

The disclosure addresses a relief valve suitable for use in systems for delivering relatively viscous fluids. The described relief valve includes a housing and a valve mechanism moveable relative to an opening into the housing to allow or prevent flow from a flow path adjacent the relief valve into and through the housing. The relief valve is configured to minimize, and in many examples, essentially eliminate, a cavity between the housing opening and the adjacent flow path. Elimination of this cavity offers significant advantages as it minimizes or eliminates a location for pumped materials to accumulate and/or cure, which can lead to impairment or disabling of the relief valve operation.

主权项

1. A relief valve comprising:
a housing extending between an inlet end and a second end, the housing having an outlet port formed therein, the housing also having a valve seat at the inlet end; and a longitudinally moveable valve mechanism assembly within the housing, the valve mechanism moveable between a first position engaging the valve seat to close fluid flow past the valve seat, and a second position spaced from the valve seat to allow fluid flow past the valve seat and to the outlet port.