855S
Series Sprinklers
Bidding Specifications (continued)
Recommended
Installation Procedures
The valve seat seal shall be constructed
The sprinkler cap shall indicate
of fabric-reinforced natural rubber. The
electric valve assembly shall incorporate
a 100-mesh stainless steel screen for the
control water, preventing entry of
foreign materials into the pilot valve
assembly.
model designation, main nozzle number
and manufacturing date code. The
exposed body flange shall display
warnings to ensure safe operation.
The 855S Series sprinkler is designed
specifically for turf areas requiring
__________ coverage. These products
offer the most economical method of
irrigation where flows and system
pressures are available to support a
greater radius.
The sprinkler shall be available in
three body styles/activation types as
follows:
Rotation shall be accomplished by
a water-lubricated gear drive. The drive
assembly shall be driven by a spring
loaded, poppet-type, variable stator
sized to provide 3-minute, full-circle
rotation speeds throughout the pressure
range. The drive and stator assemblies
shall be constructed of non-corrosive
plastic and stainless steel components.
The body and cap of the sprinkler
shall be injection-molded from ABS,
a corrosion-proof, impact-resistant,
UV-resistant, heavy-duty engineering-
grade plastic material. The body shall
incorporate an indestructible, molded-in
stainless steel valve seat capable of
withstanding debris contamination with
no permanent damage. The valve seat
shall never require servicing. The cap
and nozzle base shall incorporate a
pull-up feature that provides improved
serviceability of the nozzles and riser
assembly. The sprinkler shall have two
plastic filter screens: a top-serviceable
coarse rock screen in the body inlet;
sized to prevent entry of larger foreign
material from entering the body, and
a finer screen threaded into the riser,
sized to prevent foreign material from
clogging the nozzle.
Normally Open Valve-In-Head
The 855S Series sprinklers should be
specified for installation on a swing
joint. The swing joint should be
specified as a triple-swing type, allowing
movement up, down, laterally, and at an
angle to grade. The sprinkler should be
installed with the body flange at grade.
The integrated hydraulic valve shall
be activated remotely by relieving
pressure to open and applying pressure
to close. The control connection shall be
1 1
4 8
a brass fitting with ⁄ " O.D. x ⁄ " I.D.
polyethylene tubing and a push-on
tube retainer.
Individual sprinkler head control is
accomplished using a single 855S Series
valve-in-head sprinkler per controller
station. Use of the valve-in-head model
will allow individual station control, and
is particularly useful for irrigating
distinct turf regions at unique
Check-O-Matic
The integrated check valve shall be
capable of preventing low-head
drainage up to 37' (11,2m) of elevation
change. The check valve shall be
vented to atmosphere via the sprinkler
body bowl. The vent connection shall
be a brass fitting with 1⁄4" O.D. x 1⁄8" I.D.
polyethylene tubing and a push-on
tube retainer.
application rates.
Check-O-Matic models are generally
found in block systems where one valve
is used to activate two or more
sprinklers. The spring-loaded check
valve function will prevent low-head
drainage and keep the lateral pipelines
charged for the next irrigation cycle,
thereby helping to eliminate water
hammer.
Electric Valve-In-Head
The sprinkler shall incorporate a
low wattage, surge protected, electrical
solenoid for activation of the integrated
control valve. The solenoid operator
shall be suitable for 24 VAC, 50/60 Hz
service with inrush of .12 A @ 50/60
Hz, and holding of .10 A @ 50/60 Hz.
The solenoid shall be capable of
Note: Ensure that the hydraulics will
accommodate the combined flow of all
sprinklers on the lateral pipeline.
855S Series sprinklers are engineered
to provide a smooth, consistent curtain
of water across the arc, with provision
made for head-to-head coverage. For
proper spacing, ensure that system
design and installation accounts for
prevailing wind conditions and body
flange angle to grade.
withstanding lightning surges in excess
of 20,000 volts without damage.
All internal components shall be
serviceable from the top of the
sprinkler without disturbing the body
installation. The riser and internal
valve assemblies shall each be retained
by a single snap ring.
Separate models shall be available with
low-wattage/high-surge performance,
capable of performing in non-potable
water applications, and with a DC-
latching solenoid for use in 2-wire
decoder systems. A manual selector
switch with On-Off-Auto positions
shall be provided and accessible above
grade with a special key. Pressure
regulation shall be factory preset and
field-selectable to 50, 65, 80 or 100 psi
The sprinkler shall have a riser/body
seal assembly that regulates flushing
during pop-up and retraction to clear
any debris from around the riser, and
a heavy-duty, stainless steel spring to
ensure positive retraction. The riser seals
to a durable over-molded urethane ring
on the seal retainer. Sprinkler flush rate
shall not exceed 5 GPM (18,9 LPM).
The sprinkler shall be capable of
identifying the use of effluent water on
the exposed cap of the sprinkler via
a lavender-colored cap assembly. A
patented yardage marker insert with
numeric values shall also be available.
It is recommended that sprinklers are
installed 2" (5 cm) from hardscaping
and 6"–12" (15.2–30.5 cm) from buildings
or other vertical impediments to allow
for normal maintenance procedures and
to minimize overspray on buildings.
Where possible, sprinklers should be
installed in a manner that will minimize
nozzle stream contact with trees,
(3,5, 4,5, 5,5 or 6,9 Bar).
The sprinkler shall be developed
and manufactured by an ISO 9001-
certified facility. The sprinkler shall be
model number
_______________________ and shall be
manufactured by The Toro Company,
Irrigation Division.
controller enclosures, shrubbery or other
obstructions.
October 2007
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| Categories | Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 855S Series |
| Download File |
|
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939 |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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