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Table of Contents
8393-H Installation/Operation/Maintenance
NOTICE; The maximum allowed reaction force for this monitor is 632 lbs. Use the friction loss for
the monitor (and stream shaper if used) together with the available pressure and flow from your
water supply to determine the pressure at the nozzle that you intend to use. Use one of the
reaction force formulae below to then determine that the reaction force of the nozzle does not
exceed 632 lbs. This monitor is designed for a maximum flow rate of 1250 GPM (US) and a
maximum inlet pressure of 200 psi.
STRAIGHT BORE NOZZLES
NR = 1.5 d
NR = Nozzle Reaction (Pounds)
d = Nozzle Diameter (Inches)
NP = Nozzle (Pitot) Pressure (PSI)
INSTALLATION; Please refer to 8393-H assembly drawing on page 6.
1. Connect the hydrant elbow sub-assembly (11) to the 2.5" hydrant discharge with the flange
parallel to the ground and tighten the swivel connection (5) just tight enough to hold the
elbow in place.
2. Attach the hydrant bracket (1) to the barrel of the hydrant using the appropriate size U-bolt,
8" (2) or 10" (4). Place one nut on each side of the U-bolt, position the bracket as shown
and tighten each nut hand tight.
3. Attach the support bracket (10) to the hydrant bracket (1) using the 2 bolts provided (3).
Tighten finger tight.
4. Position the bracket assembly under the elbow (11) so the pad on the bottom of the elbow
contacts the saddle of the support bracket (10) as described in figure 1. Tighten the nuts on
the large U-bolt enough to hold the bracket assembly in position.
5. Install the 3.5" U-bolt (9) over the elbow and down through the holes in the support bracket
(10) saddle. Install one nut on each side. Tighten both nuts alternately and equally until both
are snug. Compare with figures 1 & 2 to make sure the fit between the elbow pad and the
support bracket saddle is correct.
2
NP
1-574-295-8330
www.elkhartbrass.com
COMBINATION FOG NOZZLES
NR = 0.0505 Q √P
NR = Nozzle Reaction (Pounds)
Q = Flow (US GPM)
P = Nozzle Pressure (PSI at base of nozzle)
98055000 (Rev-E)
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Related Manuals for ELKHART BRASS 8393-H
Summary of Contents for ELKHART BRASS 8393-H
- Page 1 NP = Nozzle (Pitot) Pressure (PSI) P = Nozzle Pressure (PSI at base of nozzle) INSTALLATION; Please refer to 8393-H assembly drawing on page 6. 1. Connect the hydrant elbow sub-assembly (11) to the 2.5” hydrant discharge with the flange parallel to the ground and tighten the swivel connection (5) just tight enough to hold the elbow in place.
- Page 2 70 ft./lbs. install a second nut on each side and lock it against the previously torqued nuts. CAUTION; the 8393-H hydrant elbow flange and monitor flange have a non-standard bolt pattern. This is to insure that only the 8393 monitor designed for use with the hydrant elbow will fit. The 8393 monitor’s low discharge height greatly reduces the forces acting on the mounting system due...
- Page 3 If the monitor is subjected to vibration, check all fasteners and set screws for signs of loosening. If necessary, secure them with a “Loctite #242” or similar type of adhesive product. For repair parts please consult the parts drawings on the Elkhart Brass website...
- Page 4 Maintain the monitor paint as dictated by use and by the environment. The factory- applied paint is a red (RAL 3003) urethane enamel.
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