Evoqua DEFENDER SP-27-48-487, Operation & Maintenance Manual

Page: 83 / 88

Page 83
Filter Components
– Included in Package
Mark Reference Notes
D1 Pneumatic bumping
assembly
D2 Quick exhaust valve
D3 Viewing window
D4 Gauge panel
D5 Influent check valve
D6 Effluent valve Air-operated butterfly valve, normally open. Install the effluent
valve directly on the precoat tee. Locate the actuator where
the valve position can be viewed from the floor.
D7 Precoat valve Air-operated butterfly valve, normally closed. Install the
precoat valve as close as possible to the pump suction piping.
Precoat the line two pipe diameters smaller than effluent pipe
diameter. (No less than 2 inches).
D8 System fill Manually-operated butterfly valve, normally open.
D9 Drain valve Manually-operated butterfly valve, normally closed, with
extension. Bolted directly to the tank bottom (media
dump/rinse). Drain line must be plumbed independently to
waste. (Automated option available).
D10 In-line sight glass Install in-line sight glass on the precoat line so that it can be
viewed while standing at the filter control panel.
D11 Control enclosure
D12 Filter regulator
D13 Vacuum transfer unit
D14 Vacuum transfer hose
D15 Vacuum transfer piping and
fittings
SCH 80 PVC fittings and pipe, 1 1/2 inch.
D16 Vacuum transfer valve Ball valve, 1 1/2 inch, true union, normally closed.
D17 Vacuum vent valve Ball valve, 1 1/2 inch, true union, normally closed. The
vacuum drain line must be plumbed independently to waste.
D18 Vacuum hose valve with
hose
Ball valve, 1 1/2 inch, true union, normally closed.
D19 Air compressor Optional.
D20 Water separator
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