. The street railway review . fh;. 1-fkstek non-rettirn ikstop valve. iTEK lOMItlN.^ with the Foster goods. The demand for the companys specialtiesduring iy02 taxed the capacity of the new plant, and it is probablethat a further enlargement will be necessary this year. Special attention is being directed at this time to the Foster non-return stop valve, and the Foster combination valve, which combineswith the non-return feature certain automatic emergency and hand-stop functions. The Foster valves of these types arc particularlydesigned for use in electric railway power stations. Th
. The street railway review . fh;. 1-fkstek non-rettirn ikstop valve. iTEK lOMItlN.^ with the Foster goods. The demand for the companys specialtiesduring iy02 taxed the capacity of the new plant, and it is probablethat a further enlargement will be necessary this year. Special attention is being directed at this time to the Foster non-return stop valve, and the Foster combination valve, which combineswith the non-return feature certain automatic emergency and hand-stop functions. The Foster valves of these types arc particularlydesigned for use in electric railway power stations. The non-returnstop-valve is designed to absolutely prevent the flow of steam intothe boiler from the header, as might occur when a boiler had beenout of use temporarily and is cut into the line before the proper pres-sure had been reached. Reference to Fig. i will make clear the method of the pressure in the boiler at A is equal to i lb. greater thanthe pressure at B, the valve opens and is held open by the flow
Size: 1126px × 2219px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
