Valve assembly

3 An assembly according to claim 1 wherein a series of spaced ports are provided at each end of the said valve body.

12 An assembly according to claim 1 wherein the outer surface of the valve body at and adjacent to the respective ends of the body is free from any outwardly projecting formations.

13 A double block and bleed valve assembly for connection to first and second pipeline ends, said pipeline ends provided with a flange with apertures at spaced locations for the reception of location means which pass through said apertures and into spaced ports provided in the respective ends of the valve body and wherein the valve assembly body is of substantially the same outer surface dimensions along the length thereof.

14 An assembly according to claim 13 wherein the outer dimension of the valve body is similar to the outer dimension of the pipeline flange.

15 A double block and bleed valve assembly, said assembly comprising a valve body having a bore running along the length thereof, said bore movable between open and closed positions by two selectively operable valve arrangements positioned in line along the bore within the valve body, said body formed from first and second parts, said parts joined at an interface intermediate the ends of the valve body and wherein the valve body further includes at at least one end thereof, a series of spaced ports, said ports depending inwardly from the end face and provided for the reception of location means to pass through the matching respective apertures provided on a pipeline flange and said ports located wholly within the valve body to allow the valve to be directly joined with said pipeline via contact between the end face of the valve body and the pipeline flange.

16 A pipeline assembly incorporating a pipeline with at least one double block and bleed valve assembly fitted thereto, said assembly comprising a valve body having a bore running along the length thereof, said bore controlled between open and closed position by two selectively operable valve arrangements positioned along the bore to allow the selective flow of a fluid along the said pipeline and valve bore when the valve is open, and characterised in that the valve body includes at the end faces which are joined to the pipeline ends, a series of spaced ports, each of said ports having an opening at the end face of the valve body and depending inwardly from the end face into the valve body for the reception of a locating bolt which pass through an aperture provided in a flange at the pipeline end and into the port in the valve body to allow the valve to be joined with a pipeline end.