초록 ▼

Exemplary embodiments are directed to butterfly valves, generally including a body assembly and handle assembly. The body assembly generally includes a body, a disc rotationally disposed inside an opening of the body, a cog, and a stem passing through the disc and the body. The handle assembly gener

Exemplary embodiments are directed to butterfly valves, generally including a body assembly and handle assembly. The body assembly generally includes a body, a disc rotationally disposed inside an opening of the body, a cog, and a stem passing through the disc and the body. The handle assembly generally includes a handle body and a force ring. The stem can be rotationally interlocked relative to the disc and the handle assembly. The cog and the force ring can engage to rotationally secure the disc relative to the body. The handle assembly can include a lever and a grip, the force ring, the lever and the grip being pivotally secured relative to each other. The body can include a male radial protrusion and the body assembly can include a liner with a female radial groove. Methods of assembling and positioning a butterfly valve are also provided.

대표청구항 ▼

1. A butterfly valve, comprising: a body assembly, the body assembly including a body, a disc rotationally disposed inside an opening of the body, a cog, and a stem passing through the disc and the body, anda handle assembly, the handle assembly including a lever and a force ring, the lever includin

1. A butterfly valve, comprising: a body assembly, the body assembly including a body, a disc rotationally disposed inside an opening of the body, a cog, and a stem passing through the disc and the body, anda handle assembly, the handle assembly including a lever and a force ring, the lever including a proximal end and a distal end,wherein the force ring includes two force ring openings passing at least partially therethrough,wherein the lever includes two lever openings passing through the proximal end of the lever, andwherein the force ring is engaged relative to the lever with at least one pin. 2. The butterfly valve according to claim 1, wherein the cog comprises at least one male member and the force ring comprises at least one female member engaging the at least one male member. 3. The butterfly valve according to claim 2, wherein the at least one male member of the cog and the at least one female member of the force ring are positioned at a 45 degree angle relative to a stem axis. 4. The butterfly valve according to claim 1, wherein the cog comprises at least one female member and the force ring comprises at least one male member engaging the at least one female member. 5. The butterfly valve according to claim 4, wherein the at least one female member of the cog and the at least one male member of the force ring radially extend 360 degrees around a vertical axis of the cog and the force ring. 6. The butterfly valve according to claim 4, wherein the at least one female member of the cog and the at least one male member of the force ring are positioned at a 45 degree angle relative to a stem axis. 7. The butterfly valve according to claim 1, wherein the cog and the force ring comprise complementary splines engageable relative to each other. 8. The butterfly valve according to claim 7, wherein the complementary splines of the cog and the force ring mate by a total of 50 degrees or more. 9. The butterfly valve according to claim 7, wherein the complementary splines of the cog and the force ring are positioned at a 45 degree angle relative to a stem axis. 10. The butterfly valve according to claim 1, wherein at least one of the cog and the force ring comprises a friction imparting surface. 11. The butterfly valve according to claim 2, wherein the at least one male member of the cog and the at least one female member of the force ring radially extend 360 degrees around a vertical axis of the cog and the force ring. 12. The butterfly valve according to claim 1, wherein the handle assembly is rotatable within a 90 degrees arc relative to the body assembly. 13. The butterfly valve according to claim 1, wherein the handle assembly is rotatable within less than a 90 degree arc relative to the body assembly. 14. The butterfly valve according to claim 1, wherein the handle assembly is rotatable more than a 90 degree arc relative to the body assembly. 15. The butterfly valve according to claim 1, wherein the cog comprises an integral stop to regulate a rotational path of the handle assembly relative to the body assembly. 16. The butterfly valve according to claim 1, wherein the force ring defines a male truncated conical shape and the cog defines a complementary female conical shape counter bore. 17. The butterfly valve according to claim 1, wherein the cog defines a male truncated conical shape and the force ring defines a complementary female conical shape counter bore. 18. The butterfly valve according to claim 1, wherein the force ring defines a flat cylindrical surface and the cog defines a complementary flat cylindrical surface. 19. The butterfly valve according to claim 1, wherein the handle assembly is removably attached relative to the body assembly. 20. The butterfly valve according to claim 1, wherein the disc is actuated relative to the body assembly via a manual actuation. 21. The butterfly valve according to claim 1, wherein the handle assembly is detachable from the body assembly. 22. The butterfly valve according to claim 1, wherein the body includes visual indicators detachably secured thereon corresponding to rotational positions of the disc relative to the body. 23. The butterfly valve according to claim 22, wherein the handle body includes at least one protrusion configured to at least partially surround one of the visual indicators of the body to indicate a rotational position of the disc relative to the body. 24. The butterfly valve according to claim 1, wherein a handle body of the handle assembly comprises a bore configured and dimensioned to receive an insert and at least one key. 25. The butterfly valve according to claim 24, wherein the at least one key is configured to fracture at a predetermined force level to prevent damage to components of the butterfly valve. 26. The butterfly valve according to claim 1, wherein the cog comprises a segment complementary to a protruding step of a handle body of the handle assembly to regulate an orientation of the handle body relative to the body. 27. The butterfly valve according to claim 26, wherein the cog is rotated 180 degrees relative to the body to change the orientation of the handle body relative to the body. 28. The butterfly valve according to claim 1, wherein the two force ring openings oppose each other and the two lever openings oppose each other. 29. The butterfly valve according to claim 1, wherein the at least one pin is detachable from the force ring and the lever. 30. The butterfly valve according to claim 1, wherein the force ring, the lever, and a grip are pivotally secured relative to each other at least at two pivot points. 31. The butterfly valve according to claim 1, wherein the cog and the force ring engage to rotationally secure the cog and the force ring relative to each other. 32. The butterfly valve according to claim 31, wherein actuating a grip of the handle assembly simultaneously pivots the lever and the force ring to disengage the cog and the force ring. 33. The butterfly valve according to claim 31, wherein actuating a grip of the handle assembly simultaneously pivots the lever and the force ring to lift the force ring from the cog in a parallel orientation relative to the cog. 34. The butterfly valve according to claim 1, wherein the handle assembly comprises a grip, the lever comprises a pin and the grip comprises a complementary slot for pivotally securing the lever relative to the grip. 35. A method of assembling a butterfly valve, comprising: providing a body assembly, the body assembly including a body, a disc rotationally disposed inside an opening of the body, a cog, and a stem passing through the disc and the body,providing a handle assembly, the handle assembly including a lever and a force ring, wherein the force ring includes two force ring openings passing at least partially therethrough, and wherein the lever includes a proximal end and a distal end with two lever openings passing through the proximal end of the lever, andengaging the force ring relative to the lever with at least one pin. 36. The method according to claim 35, wherein engaging the force ring relative to the lever with at least one pin comprises aligning the two force ring openings with the two lever openings and passing the at least one pin through each of the two force ring openings and the two lever openings. 37. The method according to claim 35, comprising disengaging the cog and the force ring to rotate the handle assembly and the disc relative to the body. 38. The method according to claim 35, wherein the cog comprises a segment complementary to a protruding step of a handle body of the handle assembly to regulate an orientation of the handle body relative to the body. 39. The method according to claim 38, comprising rotating the cog 180 degrees relative to the body to change the orientation of the handle body relative to the body. 40. The method according to claim 35, comprising pivotally securing the force ring, the lever, and a grip relative to each other at least at two pivot points. 41. The method according to claim 35, wherein the cog and the force ring engage to rotationally secure the cog and the force ring relative to each other. 42. The method according to claim 35, wherein actuating a grip of the handle assembly to regulate a position of the force ring comprises simultaneously pivoting the lever and the force ring to disengage the cog and the force ring. 43. The method according to claim 35, wherein actuating a grip of the handle assembly to regulate a position of the force ring comprises simultaneously pivoting the lever and the force ring to lift the force ring from the cog in a parallel orientation relative to the cog. 44. A butterfly valve, comprising: a body assembly, the body assembly including a body, a disc rotationally disposed inside an opening of the body, a cog including an inner partial bore with an arced segment, and a stem passing through the disc and the body, anda handle assembly, the handle assembly including a handle body and a force ring, the handle body including an arced step configured to be received within the inner partial bore of the cog,wherein the stem rotationally interlocks relative to the disc and the handle assembly,wherein the cog and the force ring engage to rotationally secure the disc relative to the body, andwherein the engagement between the arced step of the handle body and the arced segment of the cog limits rotation of the handle assembly relative to the body assembly. 45. The butterfly valve according to claim 44, wherein the handle assembly comprises a lever, the force ring comprises two protrusions and the lever comprises complementary slots for pivotally securing the force ring relative to the lever. 46. The butterfly valve according to claim 44, wherein the handle assembly comprises a lever, the lever comprises two protrusions and the force ring comprises complementary slots for pivotally securing the force ring relative to the lever. 47. A butterfly valve, comprising: a body assembly, the body assembly including a body and a disc rotationally disposed inside an opening of the body, anda handle assembly, the handle assembly including a handle body, a force ring, a lever, and a grip, the lever comprising a pin and the grip comprising a complementary slot for pivotally securing the lever relative to the grip,wherein the force ring, the lever, and the grip are disposed within the handle body. 48. A butterfly valve, comprising: a body assembly, the body assembly including a body and a disc rotationally disposed inside an opening of the body, anda handle assembly, the handle assembly including a handle body, a force ring, a lever, and a grip, the force ring comprising two protrusions and the lever comprising complementary slots for pivotally securing the force ring relative to the lever,wherein the force ring, the lever, and the grip are disposed within the handle body. 49. A butterfly valve, comprising: a body assembly, the body assembly including a body and a disc rotationally disposed inside an opening of the body, anda handle assembly, the handle assembly including a handle body, a force ring, a lever, and a grip, the lever including two protrusions and the force ring including complementary slots for pivotally securing the force ring relative to the lever,wherein the force ring, the lever, and the grip are disposed within the handle body.