초록 ▼

A meter run has a meter tube fitting of a configuration which includes an annular cavity. The cavity has confronting faces spaced from one another. An orifice plate holder is received in axially aligned relationship therebetween so that flow must occur through the central orifice formed in the orifi

A meter run has a meter tube fitting of a configuration which includes an annular cavity. The cavity has confronting faces spaced from one another. An orifice plate holder is received in axially aligned relationship therebetween so that flow must occur through the central orifice formed in the orifice plate. A meter tube insert is positioned within the meter tube fitting and includes reduced diameter confronting annular flanges having faces spaced from one another substantially the same amount as the spacing of the confronting faces of the cavity. An adaptor assembly includes an outer annular gasket, an annular main support body, an inner annular gasket, and an orifice plate. The orifice plate is mounted within the inner annular gasket, the inner annular gasket is mounted within a passageway formed through the main support body, and the main support body is sealingly mounted within the outer annular gasket. The outer and inner gaskets, respectively, concurrently sealingly engage the confronting faces of the fixture and the insert, respectively.

대표청구항 ▼

1. In a meter run having a meter tube fitting with a meter tube insert included therein by which the orifice to pipe diameter ratio may be improved, wherein said meter tube fitting has confronting annular faces which form a cavity, an said tube inserts has confronting flange faces aligned with the c

1. In a meter run having a meter tube fitting with a meter tube insert included therein by which the orifice to pipe diameter ratio may be improved, wherein said meter tube fitting has confronting annular faces which form a cavity, an said tube inserts has confronting flange faces aligned with the confronting faces of the meter tube fitting, the combination with said meter tube fitting and meter tube insert of an adaptor apparatus; said adaptor apparatus has an outer annular resilient gasket for sealingly engaging the annular confronting faces of the meter tube fitting; an annular body carried on the interior of the outer gasket, said annular body has an axial passgeway formed therethrough of reduced diameter respective to the inside diameter of the outer annular gasket; an inner annular gasket of resilient material, said inner annular gasket has an outer seal surface formed thereon which is sealingly received within said axial passageway; an annular orifice plate, said inner annular gasket has a groove formed about the interior thereof by which the outer circumferentially extending marginal edge of said plate is received therewithin, whereby said outer gasket supports said annular body, said annular body supports said inner gasket, and said inner gasket supports said orifice plate. 2. The combination of claim 1 wherein said outer annular gasket has a groove formed on the interior thereof; said annular body has a relatively thin outer circumferentially extending surface which is sealingly received within said groove formed on the interior of said outer annular gasket; and said annular body has an inner wall surface which forms said axial passageway, means by which said inner wall surface sealingly receives said inner annular gasket therewithin. 3. The combination of claim 1 wherein said annular body has an enlarged annular part which is spaced inwardly from a thin annular outer part, said enlarged annular part has a wall surface for sealingly receiving the outer surface of said inner gasket therein. 4. The combination of claim 3 wherein said orifice plate is a substantially flat round member having an axial bore through which fluid can flow. 5. The combination of claim 1 wherein said annular body has a relatively thin outer circumferential surface for being sealingly received within a circumferentially extending groove formed within said outer annular gasket; means on said annular body forming a sealing surface which also forms said axial passageway within which said inner annular gasket is received therein; said annular body further includes an enlarged annular wall surface spaced inwardly from a thin outer annular wall surface for sealingly receiving the outer circumferentially extending surface of said inner annular gasket therein. 6. A meter run of the type which includes a meter tube fitting, said meter tube fitting includes a cavity formed by confronting faces formed therein; a meter tube insert apparatus mounted within the meter tube fitting by which the ratio of the diameter of orifice to pipe of the meter run can be improved, the tube insert includes confronting faces formed thereon which are arranged in aligned relationship with respect to the confronting faces of the cavity associated with the meter tube fitting, the combination with said fitting and insert of an adaptor apparatus; said adaptor apparatus includes means forming an outer annular resilient gasket of a size which sealingly engages the confronting faces of the cavity formed within the fitting; an annular body carried on the interior of the outer annular gasket in sealed relationship therewith, said annular body has an axial passageway formed therethrough of reduced diameter respective to the inside diameter of the outer annular gasket; an inner annular gasket of resilient material, said inner annular gasket has means forming an outer seal surface thereon which is of a size for being sealingly received within said axial passageway of said annular body; an annular orifice plate, means forming a groove about the interior of said inner annular gasket by which the outer cicumferentially extending marginal edge of said orifice plate is received in sealed relationship therewithin; whereby, said outer gasket supports said annular body, said annular body supports said inner gasket, and said inner gasket supports said orifice plate so that all of the flow that occurs through the meter run must occur through the annular orifice plate. 7. The combination of claim 6 wherein a groove is formed about the interior of said outer annular gasket; said annular body has a relatively large circumferentially extending inner surface; and, a relatively thin outer circumferentially extending surface for being sealingly received within the groove formed on the interior of said outer annular gasket. 8. The combination of claim 6 wherein said annular body has an enlarged annular wall surface which is spaced inwardly from a thin outer wall surface; said enlarged annular wall surface forms a surface for sealingly receiving the outer surface of said inner gasket therein. 9. The combination of claim 8 wherein said orifice plate is a substantially flat round member having an axial bore through which fluid can flow. 10. The combination of claim 6 wherein the outermost surface area of said annular body is a relatively thin outer circumferential surface for being sealingly received within a circumferentially extending groove formed within said outer annular gasket; said annular body has an enlarged annular wall surface spaced inwardly from said thin outer wall surface; said enlarged annular wall surface includes means for sealingly receiving the outer surface of said inner annular gasket. 11. In a meter run having a meter tube fitting with a meter tube insert included therein to thereby enable a relatively smaller orifice plate to be used therewith and thereby improve the beta ratio of the meter run; wherein said tube insert has confronting faces aligned with the confronting faces which form the usual cavity associated with the meter tube fitting, so that an orifice can be mounted respective to said fitting and tube insert in a manner whereby flow must occur therethrough; the improvement comprising: an adaptor apparatus for mounting an orifice plate in sealed relationship respective to the tube insert confronting faces and the cavity confronting faces; said adaptor apparatus has an outer annular resilient gasket for sealingly engaging the annular faces of the fitting an annular body, means by which said annular body is carried on the interior of the outer gasket, said annular body has an axial passageway formed therethrough of reduced diameter respective to the inside diameter of the outer gasket; an inner annular gasket of resilient material, said inner annular gasket has means forming an outer seal surface thereon by which said inner annular gasket is sealingly received within said axial passageway; an annular orifice plate, said inner annular gasket has a groove formed about the interior thereof by which the outer circumferentially extending marginal edge of said plate is received therewithin, whereby said outer gasket supports said annular body, said annular body supports said inner gasket, and said inner gasket supports said orifice plate. 12. The improvement of claim 11 wherein said outer annular gasket has a groove formed on the interior thereof, said annular body has a relatively thin outer circumferentially extending surface for being sealingly received with the groove formed on the interior of said outer annular gasket; and a relatively large inner circumferentially extending surface which sealingly receives said inner annular gasket. 13. The improvement of claim 11 wherein said annular body has an enlarged annular wall surface which is spaced inwardly from a thin outer wall surface; said enlarged outer wall surface sealingly receives the outer surface of said inner gasket therein. 14. The improvement of claim 13 wherein said orifice plate is a substantially flat round member having an axial bore through which fluid can flow. 15. The improvement of claim 11 wherein means form a groove about the inner surface of the outer annular gasket; said annular body has a relatively thin outer circumferential surface for being sealingly received within the groove formed within said outer annular gasket; and means forming a sealing surface which also forms said axial passageway and sealingly receives said inner annular gasket therein; said annular body has an enlarged annular wall surface spaced from said thin outer wall surface for sealingly receiving the outer surface of said orifice plate therein.