. Science of railways . Hancock Double Vertical Check Valve with Double Stop Valve LOCOMOTIVE APPLIANCES. 299 THE HANCOCK DOUBLE VERTICAL CHECK VALVE This Hancock double vertical check valve, with doublestop valve is so designed as to enable it to be mounted ontop of the boiler. The construction and operation of the valve are clearly-displayed in the cut. Two independent systems feed the waterdirectly into the steam space of the boiler and either sidemay be cut out without interfering with the continuous feed water enters the valve through the quarter turn. Hancock Double Vertical Che
. Science of railways . Hancock Double Vertical Check Valve with Double Stop Valve LOCOMOTIVE APPLIANCES. 299 THE HANCOCK DOUBLE VERTICAL CHECK VALVE This Hancock double vertical check valve, with doublestop valve is so designed as to enable it to be mounted ontop of the boiler. The construction and operation of the valve are clearly-displayed in the cut. Two independent systems feed the waterdirectly into the steam space of the boiler and either sidemay be cut out without interfering with the continuous feed water enters the valve through the quarter turn. Hancock Double Vertical Check Valve connection which forms a seat for the check and a guide forits wings. This connection is bolted to the main body of the valveand to the feed line, permitting of quick repairs and replace-ments. Various refinements of the design insure long lifeand dependability. The complete valve is secured to the boiler by a boilerflange and studs, a joint ring having a flat seat on one sideand a ball joint on the other being provided to secure steamtight joints. The boiler flange, which conforms to the curva- 300 LOCOMOTIVE APPLIAXCES. tiire of the boiler, is provided with a deflector which directsthe flow of the feed water towards the sides of the boiler,preventing a direct discharge on the dry pipe and upper tubes!
Size: 1912px × 1307px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1910, bookidscienceofrailway14kirk
