FULTON VSRT 50 - Page 32

2  INSTALLATION
© Fulton 2018
2-22
VSRT_IOM_2018-1213
8. High point bleeds/air vents are to be installed at
all high points in the system piping.
9. All pipes should be installed with a pitch to
facilitate draining and venting.
Skid Packaged Steam System Piping Specication
(Boilers with a maximum operating pressure of 125 psig, 150 psig max. trim pressure)
Service Pipe Fittings Joints
Blowo Sch 80 SA 53A or B
or SA 106B
≤ 2.5” Forged Steel CL3000
≥3” SA 234/SA 105
≤ 2.5” Threaded
≥3” welded/anged 300#
Water bottle nipples
Note: downstream of the water bottle
drain valve to follow surface blowdown
piping requirements
Sch. 40 SA 53A or B
or SA 106B
malleable iron CL 150 threaded
Surface Blowdown Piping Sch 80 SA 53A or B
or SA 106B
Forged Steel CL 3000 Threaded
Condensate (i.e., any piping that may
come in contact with the condensate that
is not deaerated – water piping).
Sch 80 SA 53A or B
or SA 106B
≤ 2.5” Forged Steel CL3000
≥3” SA 234/SA 105
≤ 2.5” Threaded
≥3” welded/anged 150#
Feedwater – between the pump and the
boiler/steampac++
Sch 80 SA 53A or B
or SA 106B
≤ 2.5” malleable iron CL150
≥3” SA 234/SA 105
≤ 2.5” Threaded
≥3” welded/anged 150#
Pump Recirculation orice piping A length of straight pipe a minimum of 20 pipe diameters directly downstream
of the orice shall be sch. 80 Stainless Steel pipe and the rst elbow shall be an
extra heavy Stainless Steel elbow. Remaining piping to follow the requirements
for Deaerator heated piping above.
Steam Headers/Deaerator steam piping to
125 psig incoming steam pressure+++
Sch 80 SA 53A or B
or SA 106B
≤ 2.5” malleable iron CL 150
≥3” SA 234/SA 105
≤ 2.5” Threaded
≥3” welded/anged 150#
Overow/Drain piping (water) including
DA liquid drainer piping
Sch 40 SA 53A or B
or SA 106B
≤ 2.5” malleable iron CL 150
≥3” SA 234/SA 105
≤ 2.5” Threaded
≥3” welded/anged 150#
Blowdown tank drain and outlet piping Sch 40 SA 53A or B
or SA 106B
malleable iron CL 150 Threaded
100% fresh cold water make up (including:
DA tanks, water softener, etc)
Type L copper
Note: Piping within the boiler’s ASME code piping boundary supersedes the information in this table.
++ If there is no preheat in the feedwater tank, feed water piping between the feedwater tank and the boiler should be sch 80, SA 106B.
+++ Welded/anged pipe (3” and greater) may be sch. 40.
Table 6 - Sample Piping Specication