Dome-loaded pressure reducing regulator for single use applications

A centerbody assembly for a pressure regulator, comprising:

• 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;
• wherein the valve element is mechanically interconnected with the control diaphragm;
• and
• wherein a ratio of a diameter of the spherical valve element to a diameter of the inlet port is between 1.1 and 1.6.

A centerbody assembly for a pressure regulator, comprising:

• 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;
• wherein the valve element is mechanically interconnected with the control diaphragm;
• and
• wherein a maximum movement of the spherical valve element between the closed and open positions is between 5% and 30% of a diameter of the spherical valve element.

A centerbody assembly for a pressure regulator, comprising:

• 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;
• wherein the valve element is mechanically interconnected with the control diaphragm;
• and
• wherein a sealing ring diameter is defined as a diameter of a ring defining contact between the spherical valve element and the valve seat;
• and a ratio of the sealing ring diameter divided by ball diameter is between 0.5 and 1.