. Tentative revised boiler safety orders. CQ. ^i-^ • I lY^ U-4 fj O pq o o?^ < CQ »WEh Ot^ cao(M Q 2; ino in O ^5O Oh< o!zi o ta CO *^i-i-«{Eh» cq U ^ 108 report op boiler code committee, Safety Valves 420 Method of Computing Discharge Capacity, The requireddischarge capacity of a safety valve or valves for a boiler may bebased either on the heat units in the fuel consumed or on theamount of steam generated. The number of heat units in the fuel that each safety valve willhandle per hour, for valves of the ordinary types in which thedischarge capacity is proportioned to the li

---

. Tentative revised boiler safety orders. CQ. ^i-^ • I lY^ U-4 fj O pq o o?^ < CQ »WEh Ot^ cao(M Q 2; ino in O ^5O Oh< o!zi o ta CO *^i-i-«{Eh» cq U ^ 108 report op boiler code committee, Safety Valves 420 Method of Computing Discharge Capacity, The requireddischarge capacity of a safety valve or valves for a boiler may bebased either on the heat units in the fuel consumed or on theamount of steam generated. The number of heat units in the fuel that each safety valve willhandle per hour, for valves of the ordinary types in which thedischarge capacity is proportioned to the lift, may be obtained asfollows: V — 161,000 X P X ^ X -^ for Bevel Seats at 45 deg. V = 227,500 XPXDXL for Flat SeatsU = 72,500 XPXA for seats of any angle The amount of steam that a valve will discharge in pounds perhour, may be found as follows: W = 110 X P X ^ X i^ for Bevel Seats at 45 = 155 XPXDXL for Flat SeatsW = 50 X -P X ^ for seats of any anglewhere U = Number of heat units in the fuel tha

---

Size: 2243px × 1114px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjectsteambo, bookyear1919