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- Construction: The interior of the T.O.P drip head consists
of 12 zones. Each zone is controlled by
an individual self-flushing, pressure compensating, color-coded nozzle with an "o"
ring. Each nozzle is constructed of an inlet and outlet, made
of plastic, with a soft silicon diaphragm between them. The inlet
area of each nozzle has four
(4) regulating grooves which serve as a secondary filter
of approximately 80 mesh. These
secondary filters are in addition to the primary Mini disk filter that sits above. Each
nozzle should be color coded
with black representing 0.6 gph, red representing 1 gph, green representing 2.2 gph and
purple representing 3.3 gph.
Nozzles of different flow rates may be combined in a single T.O.P. head.
- Operation: Each nozzle has the ability to regulate
outflow independently with an inlet working pressure range of
eight to eighty psi (8 -80 psi). At a constant outflow rate,
the manufacturer's coefficient of variation (CV) is .07 for 1
gph, .03. for 2.2 gph and .01 for 3.3 gph. Below 8 psi the nozzle
is in self flushing mode.
Minimum pressure at the last T.O.P. head should not drop below 10 psi to ensure the proper
function of the self flushing mode.
The T.O.P. drip emitter has a 1/8" outlet that may be attached
to any distribution tubing with
anoutside diameter between .178"
and .190" , or with the addition of a color coded converter
barb or elbow at may attach to 1/4"
distribution tubing with an inside diameter
between .150 " and .160".
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- Model Available
- Model TOP- 005 T.O.P. 12 Zone Drip Head, .6 gph per zone
- Model TOP- 010 T.O.P. 12 Zone Drip Head, 1 gph per zone
- Model TOP- 020 T.O.P. 12 Zone Drip Head , 2.2 per zone
- Model TOP- 030 T.O.P. 12 Zone Drip Head, 3.3 gph per zone
- Performance
Characteristics
- Operating pressure: 8 - 80 psi
- Recommended operating pressure:
10 to 45 PSI
- Recommended filtration at the
valve assembly: 120 mesh
- Flow rates: .6, 1, 2.2, and
3.3 gph per zone
- Manufacture coefficient of variation
(CV): 1 gph .07, 2.2 gph .03 and 3.3 gph .01
- Secondary filtration of approximately
80 mesh at each nozzle
- Installation of TOP 12 outlet drip head
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- Technical detail
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