Jacketed valve

Claim 2

A jacketed valve for controlling the flow of fluid between a pair of aligned pipe flanges interconnected by a plurality of circumferentially spaced bolts, comprising: a housing unit comprising: a housing having opposite end faces, a bore extending therethrough and adapted to be supported between said flanges by said bolts; a first valve stem journaled in a mating aperture in the housing and having one end thereof exposed to the housing bore; and means sealing the first valve stem in its mating aperture; and a valve unit supported in the housing unit comprising: a valve body of a size to be slid lengthwise into the housing and having a valve chamber therein communicating with the opposite ends of the valve body, the outer periphery of the valve body forming with the inner periphery of the housing an annular chamber around the valve body in an assembled position of the valve body in the housing bore; a valve member supported in the valve chamber for opening and closing the valve; and a second valve stem connected to the valve member and adapted to be connected to said first valve stem when the valve unit is inserted in the housing unit for transmitting movement of the first valve stem to the valve member; means preventing the flow of fluid between the valve chamber and the annular chamber; and means for conducting a heat transfer medium to and from the annular chamber.

Claim 3

A valve as defined in claim 1 wherein the operating housing and valve body are of substantially equal length, and wherein the means preventing the flow of fluid between the valve chamber and annular chamber includes seals sealing the opposite ends of the valve body and operating housing to the pipe flanges.

Claim 4

A valve as defined in claim 1 wherein the operating housing has a radially inwardly extending flange on one end thereof; one end of the valve body sealingly engages said operating housing flange; and said means preventing the flow of fluid between the valve chamber and the annular chamber includes means sealing the opposite end of the valve body and the opposite end of the operating housing to the respective pipe flange.

Claim 5

A valve as defined in claim 1 wherein the valve body has a radially outwardly extending flange on one end thereof; one end of the operating housing sealingly engages said valve body flange; and said means preventing the flow of fluid between the valve chamber and the annular chamber includes means sealing the opposite end of the valve body and the opposite end of the operating housing to the respective pipe flange.

Claim 6

A valve as defined in claim 1 wherein the valve body has a length less than the length of the operating housing; and characterized further to include a seating ring in at least one end of the operating housing sealingly engaging the respective end of the valve body the operating housing and the pipe flange at the respective end of the operating housing.

Claim 7

A valve as defined in claim 1 wherein the valve body has a length less than the length of the operating housing; and characterized further to include a seating ring in each end of the operating housing sealingly engaging the respective end of the valve body, the operating housing and the pipe flange at the respective end of the operating housing.

Claim 8

A valve as defined in claim 1 wherein the first valve stem has an annular flange thereon engaging an annular shoulder in the operating housing providing a metal-to-metal seal of the first valve stem in its mating aperture.

Claim 9

A valve as defined in claim 1 wherein the means sealing the first valve stem in the operating housing includes a sealing ring surrounding the first valve stem in the aperture receiving the first valve stem.

Claim 10

A valve as definEd in claim 1 wherein the means sealing the first valve stem in the operating housing includes packing around the first valve stem within the aperture receiving the first valve stem.

Claim 11

A jacketed valve for controlling the flow of fluid between a pair of aligned pipe flanges interconnected by a plurality of circumferentially spaced bolts, comprising: a housing unit comprising: a housing having opposite end faces, a bore extending therethrough and adapted to be supported between said flanges by said bolts; a first valve stem journaled in a mating aperture in the housing and having one end thereof exposed to the housing bore; and means sealing the first valve stem in its mating aperture; and a valve unit supported in the housing unit comprising: a valve body of a size to be slid lengthwise into the housing bore and having a valve chamber therein communicating with the opposite ends of the valve body, the outer periphery of the valve body forming with the inner periphery of the housing an annular chamber around the valve body in an assembled position of the valve body in the housing bore; a rotary valve member supported in the valve chamber for opening and closing the valve; a second valve stem journaled in a mating aperture in the valve body having one end thereof connected to the valve member and the opposite end thereof adapted to be connected to the first valve stem when the valve unit is inserted in the housing unit for transmitting movement of the first valve stem to the valve member; means sealing the second valve stem in its mating aperture; means preventing the flow of fluid between the valve chamber and the annular chamber; and means for conducting a heat transfer medium to and from the annular chamber.

Claim 12

A jacketed valve for controlling the flow of fluid between a pair of aligned pipe flanges interconnected by a plurality of circumferentially spaced bolts, comprising: a housing unit comprising: a housing having opposite end faces, a bore extending therethrough and adapted to be supported between said flanges by said bolts; a first valve stem journaled in a mating aperture in the housing and having one end thereof exposed to the housing bore; and means sealing the first valve stem in its mating aperture; and a valve unit supported in the housing unit comprising: a valve body of a size to be slid lengthwise into the housing bore and having a valve chamber therein communicating with the opposite ends of the valve body, the outer periphery of the valve body forming with the inner periphery of the housing an annular chamber around the valve body in an assembled position of the valve body in the housing bore; a rotary valve member supported in the valve chamber for opening and closing the valve; a second valve stem journaled in a mating aperture in the valve body having one end thereof connected to the valve member and the opposite end thereof adapted to be connected to the first valve stem when the valve unit is inserted in the housing unit for transmitting movement of the first valve stem to the valve member; means sealing the second valve stem in its mating aperture; means preventing the flow of fluid between the valve chamber and the annular chamber; and means for conducting a heat transfer medium to and from the annular chamber.

Claim 13

A valve as defined in claim 10 wherein the housing has a radially inwardly extending flange on one end thereof; one end of the valve body sealingly engages the housing flange; said means preventing the flow of fluid between the valve chamber and the annular chamber includes means sealing the opposite end of the valve body and the opposite end of the housing to the respective pipe flange; and characterized further to include a seat carried by the housing flange sealingly engaging the valve member when the valve member is in a closed position.

Claim 14

A valve as defined in claim 10 wherein the valve body has a length less than the length of the housing and characterized further to include: a seat ring in one end of the housing sealingly engaging the respective end of the valve body; and a seat carried by the seat ring sealingly engaging the valve member when the valve member is in a closed position.

Claim 15

A valve as defined in claim 10 wherein the valve body has a length less than the length of the housing and characterized further to include: a seat ring in each end of the housing sealingly engaging the respective end of the valve body; and a seat carried by each seat ring sealingly engaging the valve member when the valve member is in a closed position.

Claim 16

A valve as defined in claim 10 wherein the valve body has a radially outwardly extending flange on one end thereof sealingly engaging the housing and forming one end of the annular chamber.

Claim 17

A valve as defined in claim 10 wherein the valve member is a disc, and characterized further to include: an elastomer lining bonded around the inner periphery of the valve body forming a seat for the disc and sealingly engaging the pipe flange at each end of the valve.

Claim 18

A valve as defined in claim 10 characterized further to include a seat carried in at least one end of the valve body sealingly engaging the valve member when the valve member is in a closed position.

Claim 19

A valve as defined in claim 10 wherein the outer diameter of the valve body is substantially equal to the inner diameter of the housing; and wherein the inner periphery of the housing has a slot extending lengthwise therEin to accommodate the second valve stem for removal and insertion of the valve unit, and has an annular groove in the central portion thereof intersecting and forming, with said slot, said annular chamber.

Claim 20

A jacketed valve for controlling the flow of fluid between a pair of aligned pipe flanges interconnected by a plurality of circumferentially spaced bolts, comprising: a housing unit comprising: a housing having opposite end faces, a bore extending therethrough and adapted to be supported between said flanges by said bolts; a first valve stem journaled in a mating aperture in the housing and having one end thereof exposed to the housing bore; and means sealing the first valve stem in its mating aperture; and a valve unit supported in the housing unit comprising: a tubular valve body insertable lengthwise into the housing and having a valve chamber extending transversely therethrough, the outer periphery of the valve body forming with the inner periphery of the housing an annular chamber around the valve body in an assembled position of the valve body in the housing bore; means sealing each end of the valve body to the pipe flange at the respective end of the valve; a plug valve member journaled in the valve chamber having a stem on one end thereof shaped to be connected to the first valve stem when the valve unit is inserted in the housing; means closing the opposite ends of the annular chamber; and means for conducting a heat transfer medium to and from the annular chamber.

Claim 21

A jacketed valve for controlling the flow of fluid between a pair of aligned pipe flanges interconnected by a plurality of circumferentially spaced bolts, comprising: a housing unit comprising: a housing having opposite end faces, a bore extending therethrough and adapted to be supported between said flanges by said bolts; a first valve stem journaled in a mating aperture in the housing and having one end thereof exposed to the housing bore; and means sealing the first valve stem in its mating aperture; and a valve unit supported in the housing unit comprising: a tubular valve body insertable lengthwise into the housing and having a valve chamber extending transversely therethrough, the outer periphery of the valve body forming with the inner periphery of the housing an annular chamber around the valve body in an assembled position of the valve body in the housing bore; means sealing each end of the valve body to the pipe flange at the respective end of the valve; a plug valve member journaled in the valve chamber having a stem on one end thereof shaped to be connected to the first valve stem when the valve unit is inserted in the housing; means closing the opposite ends of the annular chamber; and means for conducting a heat transfer medium to and from the annular chamber.

Claim 22

A valve as defined in claim 18 wherein the means closing the opposite ends of the annular chamber comprises means sealing each end of the housing to the pipe flange at the respective end of the valve.