- Worldwide standard for gas feeder technology
- Safe and reliable all-vacuum operation.
- Front access service
- Space saving wall panel design
- Superior materials of construction
- Variable capacities up to 500 PPD (10 kg/h)
- Microprocessor based automatic controls
- Remote vacuum regulator mounting
- Automatic switchover gives uninterrupted service.
Capital Controls Series WP840LX gas feeders are wall panel mounted
and vacuum operated.
Easy to install for indoor installation, each Series WP840LX wall
panel is factory tested and needs no field adjustment prior to
start-up. Seven different flowmeter capacities ranging from I 0 to
500 PPD (200 g/h to I 0 kg/h) provide versatility in meeting gas
Wall panel gas feeders consist of a wall panel, vacuum regulator
and an ejector. The wall panel includes Capital Controls automatic
valve, gas flowmeter, controller and differential pressure
regulator mounted on the corrosion-resistant, heavy-duty panel. The
controller receives signals from a water flow transmitter and/or
chlorine residual analyzer. The automatic valve responds to signals
from the Controller. If multiple feed points are required, remote
meter panels and additional ejectors are provided. A switchover
module is offered to provide for uninterrupted service.
Modern Design: Superior materials of construction provide durability.
Reliable: Over 35 years of experience with all vacuum operation, integral
venting system, double thickness main regulating diaphragm
Safe:Regulator has a separate independent vent and integral pressure
Versatile: Cylinder, ton container, wall or manifold vacuum regulator
mounting. Variety of ejectors available for all applications.
Automatic switchover: A separate, independent vacuum operated device that does not
require manual reset. Each vacuum regulator has flow indication, a
separate independent vent and an integral pressure relief device.
The Capital Controls microprocessor controller is field
configurable for three chlorination and two dechlorintion control
Flow:Proportioning valve position to process flow.
Residual:Single, integral action, opening valve based on residual set point.
Compound Loop:Simultaneous proportioning valve position to a combination of flow
proportioning and residual control. If one signal is lost, the
controller automatically proportions based on remaining signal.
Feed Forward: Valve position control directly proportional to flow signal
multiplied by residual signal, provided by built-in multiplier
Automatic wall panel units include: - Controller, automatic linear
gas feeder control valve with electronic manual adjustment switch,
flowmeter and differential pressure regulator. For uninterrupted
gas feeding on a round-the-clock basis, an automatic switchover
system is provided. Gas flows under vacuum from the regulator in
service until that source is depleted, then the switchover module
automatically switches service to the standby source. The standby
supply will not be accessed until the supply is service is
For process water, waste treatment and watertreatment in the
municipal or industrial marketplace.
Disinfection: Potable water, municipal wastewater.
Dechlorination: Textiles, wastewater effluent.
Slime and algae control: Irrigation system, cooling towers
Process water: Chemical and pharmaceutical manufacture, food (wash down, canning,
bleaching, taste and odor control)
Cyanide, chromium removal: Metal-finishing wastes.
Zebra mussel control Process water: Chemical and pharmaceutical manufacture, food (wash down, canning,
bleaching, taste and odor control).
Technologically Advanced: The Capital Controls Controller provides microprocessor-based
control, fully field configurable with gas flow output signal. The
controller accepts a signal from the flow sensor and/or residual
analyzer. An automatic linearized gas feeder control valve is
provided for reliable control.
Spare-saving & Convenient: Controls are located at eye level and are easily adjustable. Saves
valuable floor space in new and existing facilities.
Ease of installation: Simplicity of design and modularized components minimize