Bi-phase fluid surge suppressor device
A siphon guard includes a housing having an inlet and an outlet. A primary flow path is disposed within the housing and is in fluid communication with the inlet and the outlet. A secondary flow path is disposed within the housing and is in fluid communication with the inlet and the outlet. The secondary flow path has a higher resistance to fluid flow than the primary path. A valve is disposed within the primary flow path. The valve has a valve seat and a first ball and a second ball. The first ball is movable by gravity between a valve closed position, where the first ball is in contact with the valve seat, and a valve open position, where the first ball is spaced from the valve seat. The first ball is disposed between the second ball and the valve seat. The second ball is movable by gravity between a valve closed position and a valve opened position.
1. A siphon guard comprising:
a housing having an inlet and an outlet opposite the inlet, the inlet and outlet being axially alignable with a shunt flow path;
a primary flow path disposed within the housing and in fluid communication with the inlet and the outlet, the primary flow path having a generally axial orientation;
a secondary flow path disposed around the primary flow path and within the housing and in fluid communication with the inlet and the outlet, the secondary flow path having a generally helical orientation and a higher resistance to fluid flow than the primary path; and
a valve disposed within the primary flow path, the valve having a valve seat and a first ball and a second ball, the first ball being movable between a valve closed position where the first ball is moved towards the outlet and in contact with the valve seat and a valve open position where the first ball is moved away from the outlet and spaced from the valve seat thereby permitting egress of fluids from the valve from the first ball and then to the outlet distal thereof,
the first ball is disposed between the second ball and the valve seat,
the second ball being movable between the valve closed position and the valve open position;
wherein the second ball being movable by a weight of the second ball between the valve closed position and the valve open position, and
wherein the primary flow path forms a “u” bend between the inlet and the valve.
2. The siphon guard of claim 1 , wherein the second ball is larger than the first ball.
3. The siphon guard of claim 2 , wherein the second ball weighs more than the first ball.
4. The siphon guard of claim 1 , wherein the first ball is biased by a weight of the first ball and the weight of the second ball.
5. The siphon guard of claim 1 , wherein the second flow path is always open.
6. The siphon guard of claim 1 , wherein the first ball is made of ruby and the second ball is made of tantalum metal.
7. A shunt and siphon guard kit comprising:
a shunt having a first housing having an inlet and an outlet opposite the inlet, the inlet and outlet being axially alignable with a shunt flow path, a flow path disposed within the first housing;
a spring biased valve being disposed within the flow path in the shunt housing;
a siphon guard having a second housing having an inlet and an outlet, said inlet of the siphon guard being in fluid communication and axially aligned with the outlet of the shunt, a primary flow path disposed within the second housing and in fluid communication with the inlet and the outlet, the primary flow path having a generally axial orientation,
a secondary flow path disposed around the primary flow path and within the second housing and in fluid communication with the inlet and the outlet, the secondary flow path having a generally helical orientation and a higher resistance to fluid flow than the primary path; and
a valve disposed within the primary flow path, the valve having a valve seat and a first ball and a second ball, the first ball being movable between a valve closed position where the first ball is moved towards the outlet and in contact with the valve seat and a valve open position where the first ball is moved away from the outlet and spaced from the valve seat,
the first ball is disposed between the second ball and the valve seat opposite the inlet, the inlet and outlet being axially alignable with a shunt flow path,
wherein the first ball is biased by a weight of the first ball and a weight of the second ball;
wherein the second ball being movable by the weight of the second ball between the valve closed position and the valve open position; and
wherein the primary flow path forms a “u” bend between the inlet and the valve.
8. The siphon guard of claim 7 , wherein the second ball is larger than the first ball.
9. The siphon guard of claim 8 , wherein the second ball is weighs more than the first ball.
10. The siphon guard of claim 7 , wherein the second flow path is always open.
11. The siphon guard of claim 7 , wherein the first ball is made of ruby and the second ball is made of tantalum metal.