Elkhart Brass Vulcan 8593-xx EXT - Manual (Page 15)

Page 15
V. I
NSTALLATION
I
NSTRUCTIONS
A. Component Mounting
1. Monitor
a) 3” NPT Base: Apply an appropriate thread sealant to the 3” NPT nipple. Thread the
monitor base onto the nipple. Alignment of the base is not critical for the monitor, which
is capable of 360º continuous motion for Vulcan RF’s.
b) 3” 150# Flat Faced Flange: Attach a 3" 150 lb. class ANSI pattern companion flange
to the water supply pipe. Elkhart Brass recommends using the 81315001 Companion
Flange Kit. Attach the monitor inlet flange to the companion flange on the water supply
pipe with four (4) 5/8-11 UNC grade 5 carbon steel or stainless steel bolts, 2-1/2 inches
long, with nuts. Seal the flange joint with a gasket, or suitable flange sealant. Apply
Loctite® #242 to the bolt threads, then thread on the nuts, and torque them to 60-70 ft-lbs
uniformly in increments of approximately 20 ft-lbs.
c) 4” 150# Flat Faced Flange: Attach a 4" 150 lb. class ANSI pattern companion flange
to the water supply pipe. Attach monitor inlet flange to companion flange on water
supply pipe with eight (8) 5/8-11 UNC grade 5 carbon steel or stainless steel bolts, 2-1/2
inches long, with nuts. If a wafer type butterfly valve is installed between the monitor
and the companion flange, required bolt length will be 4-1/2 inches. Seal flange joint
with gasket, or suitable flange sealant. Most wafer type butterfly valves have seats that
serve as flange gaskets, and separate gaskets or sealant is not required. Apply Loctite®
#242 to bolt threads. Then, thread on nuts and torque to 60-70 ft-lbs.
Warning:
The piping must be able to withstand a horizontal reaction force of at least
900 lbs at the height of the discharge elbow and from any angle of rotation that the monitor is
capable of turning. Serious injury to personnel and equipment can result from improper
installation.
Warning:
When installing monitor on a raised face companion flange it is critical
that bolts be tightened uniformly to prevent cocking of the monitor relative to the flange or
valve. If the monitor becomes cocked, (see
Figure 14) the monitor cast flange base will fracture and fail when the bolts on the "high" side
are tightened.
Figure 14
Improper Flange Installation