Description | The drawings are dated but it is not indicated whether or not they are from the nineteenth or twentieth century. The style of the drawings suggests they are from the twentieth century. 1)1" Pipework for Fig 6DR P.R.V (11 Jun 1?85) 2)Spring loaded frost cock (6 Aug 1?55) 3)Wedge for 250mm Fig 86R wedge gate valve to B.S.5163 Type B (9 May 1?90) 4)Wedge for 200mm Fig 86R wedge gate valve to B.S.5163 Type B (24 Jan 1?91) 5)Wedge for 300mm Fig 86R wedge gate valve to B.S.5163 Type B (27 Sep 1?91) 6)Wedge for 200mm Fig 86R wedge gate valve to B.S.5163 Type B (24 jan 1?91) 7)Wedge for 50mm Fig86R wedge gate valves to B.S. 5163 (5 Jan 1?89) 8)Double disc slide valve (21 Jul 1950) 9) Recorder and Integrator details B2E (13 Jun 1?39) 10)100mm Fig 3AV P.N.16 Air valve (ND) 11)80 Defender0hydrant-loose valve plate PN16 (5 Dec 1?97) 12)Air release plug (19 Oct 1?92) 13)Wedge for 80mm Fig 86R wedge gate valve to B.S.5163 Type B (14 May 1?91) 14)Wedge for 200mm Fig 86R wedge gate valve to B.S.5163 Type B (23 Feb 1?88) 15)80mm Soft face gate valve wedge (8 Aug 1?85) 16)Wedge for 150mm Fig 86R wedge gate valve to B.S.5163 (25 Oct 1?89) 17)Jig for 250mm wedges (20 Jul 1?93) 18)Wedge for 100mm Fig 86R wedge gate valve to B.S.5163 (5 Apr 1?91) |