Abstract: A pressure regulating valve includes: a body, including: a process surface; at least one inlet orifice in the process surface; In outlet orifices disposed in the process surface separate from the at least one inlet orifice; a resilient shut-off seal positioned in the process surface, defining a closed perimeter surrounding the at least one inlet orifice and separating the at least one inlet orifice from the plurality of outlet orifices; an inlet port communicating with the at least one inlet orifice; and an outlet port communicating with the plurality of outlet orifices; a reference housing; and a diaphragm constrained between the body and the reference housing, and arranged such that, when a reference pressure is higher than a process pressure the diaphragm is engaged with the outlet orifices, and when the process pressure is higher than the reference pressure, the diaphragm is disengaged from at least one outlet orifice.

Abstract: A pulsation dampener includes: a centerbody assembly having: a chamber including a first opening bounded by a wall defining a first surface; an outlet port communicating with the chamber; an inlet port communicating with the chamber; a flexible first diaphragm, wherein a perimeter of the first diaphragm is bonded to the first surface forming a seal that blocks the passage of fluid; a first cap disposed adjacent the first diaphragm, defining a first cavity between the first cap and the first diaphragm; an inlet orifice formed in the first cap communicating with the first cavity; an exhaust orifice formed in the first cap communicating with the first cavity; and a valve seat disposed in the first cavity in fluid communication with the exhaust orifice. The first diaphragm is moveable between an open position spaced away from the valve seat, and a closed position sealed against the valve seat.

Abstract: A centerbody assembly for a pressure regulator includes: a centerbody having a process surface, at least one outlet orifice disposed in the centerbody; an outlet port positioned in fluid communication with the at least one outlet orifice; an inlet port; a valve chamber positioned in the centerbody in fluid communication with the inlet port, the valve chamber including a valve seat positioned in fluid communication with the process surface; a spherical valve element disposed in the valve chamber and moveable between an open position in which it is spaced away from the valve seat, and a closed position in which it seals against the valve seat; a flexible control diaphragm facing the process surface, wherein a perimeter of the control diaphragm is bonded to the centerbody so as to define a seal that blocks the passage of fluid; and wherein the valve element is mechanically interconnected with the control diaphragm.

Abstract: A sealing apparatus for a back pressure regulator includes: a body defining a process surface, and including: at least one process void communicating with the process surface; a recess disposed in the process surface; a floating support hub disposed in the recess, carrying an O-ring; a vent void communicating with the recess; an inlet port disposed in fluid communication with the at least one process void and adapted to be coupled in fluid communication with a fluid at a process pressure; and an outlet port disposed in fluid communication with the vent void; and a diaphragm having opposed reference and process sides, the diaphragm disposed against the body such that the process side is substantially coplanar with the process surface.

Abstract: A sealing apparatus for a back pressure regulator includes: a body defining a process surface, and including: at least one process void communicating with the process surface; a recess disposed in the process surface; a floating support hub disposed in the recess, carrying an O-ring; a vent void communicating with the recess; an inlet port disposed in fluid communication with the at least one process void and adapted to be coupled in fluid communication with a fluid at a process pressure; and an outlet port disposed in fluid communication with the vent void; and a diaphragm having opposed reference and process sides, the diaphragm disposed against the body such that the process side is substantially coplanar with the process surface.