Hydro-Lance® Bulletin0 pages

Duall Model HL Hydro-Lanc® scrubbers are manufactured from Type
II Grade I PVC, polypropylene, CORZAN™ CPVC, mild steel and
stainless steel. PVC materials conform to ASTM P2146. Gray PVC is
standard for all equipment that is located indoors. White PVC,
which contains titanium dioxide to inhibit degradation by ultraviolet
light radiation, is used for equipment to be installed outdoors.
All thermoplastic vessels are of hot-gas welded construction. All
vessels are hydrostatically tested at the factory by filling to air inlet
nozzle. They are skid mounted to facilitate installation by the contractor. Flange sealant is 100% silicone rubber or 2" x 3" x 3/8"
neoprene gaskets. Inlet and outlet thermoplastic flanges require
field drilling by the contractor.
Structural Design
The structural design is based on operation at a maximum
process temperature of 120°F for PVC, 160°F for polypropylene
and 200°F for CORZAN™ CPVC, with a 150 mph wind load, or
in seismic zone 4. A load safety factor of three (3) is applied to
the design. Anchor bolts and foundation are not provided by
Duall.
Demister
Model HL scrubbers have an integral, high efficiency chevron
blade mist eliminator. The mist eliminator will remove 99% of all
entrained droplets of scrubber solution 20 microns and larger.
The mist eliminator will be factory-installed, and externally removable through the top of the vessel.
Access
Access doors with clear covers are provided for inspecting the
venturi suction and spray action, as well as for washing down
scrubber internals and mist eliminator, if required. Gaskets are
100% silicone rubber sealant or neoprene.
Removable Internals
The Venturi assembly and mist eliminator are easily removed without entering the device, if necessary, for maintenance, replacement.
Liquid Level Control System
All Model HL scrubbers are provided with a multi-point liquid
level sensor and pre-plumbed brass solenoid valve. The system
provides automatic water addition to make up for evaporation
losses as well as a high level alarm signal.
Differential Pressure Indicator
A magnehelic gauge for visual indication of pressure drop is preinstalled on every unit.
BULLETIN HL
Since scrubbers, duct, and fans installed indoors would not require
any protection from freezing weather, we suggest that the equipment be installed indoors. To provide long term protection in outdoor installation, PVC equipment should be fabricated from white
PVC. For existing gray PVC equipment that will be moved outdoors, coat sun-light exposed surfaces with an acrylic polyurethane
enamel. Electric heat tracing, tank heaters, and insulation that may
be required are available from Duall as optional equipment.
DUALL
Hydro-Lance®
We t D u s t C o l l e c t o r
Connections
Inlet and outlet thermoplastic flanges must be field-drilled by the
contractor. This will prevent alignment problems with mating ductwork.
Hydro-Lance® Wet Particulate
Scrubbers SAVe
Plumbing connections 1/2" to 4" are threaded couplings, while 6"
and larger are 150 pound ANSI flanges. The exception is the conical
bottom drain fittings, all of which are 150 pound ANSI flanges.
Mating flanges, hardware, and gaskets are not provided by Duall.
Capital cost — simple economical design
Replacement costs — corrosion resistant construction
provides extended equipment life
Optional Accessories
The following items are not included with the standard unit, but are
available from the factory:
Energy — pumps are not required
Maintenance — no moving parts, spray nozzles,
recirculation pumps or piping
• AMCA certified material handling fan.
• Skid-mounting with fan and interconnecting duct.
Floor space — efficient geometry
• Automatic electric or pneumatic actuated drain valve.
Water — the sump liquor need not be diluted
• Quick opening, clean-in-place access doors.
• Manual and automatic sludge drag-out options.
• Photohelic differential pressure gauge with high/low alarm contacts.
No Pumps
No Spray Nozzles
Ve n t u r i Te c h n o l o g y
I n t e g r a l Wa t e r S a v i n g
Sludge Concentrator
• Automatic hydrogen gas venting for reactive metals collection.
• Mist eliminator in cartridge removable through side of vessel.
• Electric heat tracing, insulation, and sump heater for freeze
protection. Field connection to electrical power source is
required.
• Control panel in a NEMA 4 enclosure. A fused main disconnect
switch is provided. Incoming power to the panel is 460 volt,
3 phase, 60 Hz. Control voltage transformer provides 120 volt
power for instruments. Internal components of the panel are
pre-wired. The controls provided in the panel would typically
include illuminated ON/OFF switch for fan, fan motor starter,
illuminated HAND/OFF/AUTO switch for make-up water solenoid
valve and drain valve, adjustable drain valve timer, and alarm
lights and horn for level and differential pressure alarms.
Maintenance
Maintenance is minimal. Care and cleaning of exhaust fan drive
systems. Access to level switches, pressure gauges, and the Venturi
throat are as easy as turning a bolt.
Printed on Recycled Paper
M ODEL HL H YDRO -L ANCE ®
W ET D UST C OLLECTOR
Standard Features
Low energy use
Pre-engineered designs
(custom designs available upon request)
Pilot testing available
Complete ventilation systems available
Outdoor Installation
Replaceable Venturi throat
©COPYRIGHT 2011 MET-PRO CORPORATION, DUALL
MET-PRO
Environmental Air Solutions
11-5016 911
Available with CIP cleaning options
High efficiency — >99% on very fine particulate
Higher efficiency designs available upon request
Corrosion resistant
A Met-Pro Product Recovery/Pollution Control Technologies Business
1550 Industrial Drive, Owosso, MI 48867
(989) 725-8184, FAX: (989) 725-8188
E-mail: info@dualldiv.com, Web Site: www.dualldiv.com
K n o w n f o r o u r q u a l i t y,
Proven to be dependable