Capital Controls Chlorination Gas chlorination Capital Controls De Nora


3.1J Drum Roomx


Capital Controls developed the all-vacuum gas feeder which has become the worldwide standard.

ADVANCE® Series 200 gas feeders are designed for manual or semi-automatic gas regulation. Automation is a simple addition.

Easy to install, for indoor or outdoor applications, each 200 Series feeder is factory tested and needs no field adjustment prior to start-up. Ten different flow meter capacities provide versatility in meeting gas flow requirements. Feeders mount directly on the gas valve of a cylinder, tonne container or manifold, utilizing a lead gasketed positive yoke clamp. Diaphragm ejectors are standard with a choice of diffuser outlets.

As an option, a variety of different ejectors are available to meet application requirements.

A 200 Series gas feeder consists of a vacuum regulator, ejector or chemical induction unit and vacuum and vent tubing to make a complete system.

If multiple feed points are required, remote meter panels and additional ejectors are provided.

A switchover module is offered to provide uninterrupted service.

• Safe and reliable all-vacuum operation
• Lifetime warranty on diaphragm and springs 

• Worldwide standard for gas feeder technology
• Superior materials of construction for wet or dry gas service
• 3 year warranty
• Safe integral venting system
• Capacities up to 10 kg/h
• Solid silver rate and inlet valves
• Accurate gas metering of: Chlorine, Sulphur Dioxide, Ammonia, Carbon Dioxide
• Versatile mounting: direct cylinder, manifold, wall or tonne container
• Switchover capability with automatic reset for uninterrupted service

Series 200 Gas Chlorinator

Automatic Gas Control Valve Series WP840


CAPITAL CONTROLS Gas Feed Systems Series NXT3000

The Series NXT3000 Gas Feed System is a family of vacuum-operated, solution-feed gas dispensing components including a vacuum regulator, meter assembly, and a selection of ejectors to meet project requirements for feeding chlorine, sulphur dioxide, ammonia or carbon dioxide gas. The Series NXT3000 is a versatile, high quality system which operates at sonic conditions eliminating the need for regulating differential pressure across the rate control valve. Proven design, rugged construction, and the use of the best available materials assures precise gas feeding, low maintenance and dependable operation for the life of the equipment.

The vacuum regulator mounts directly on a  75 kg cylinder, a tonne container, or on the wall. When tonne container or wall mounted, a liquid trap and heater are provided to prevent liquefied gas from reaching the regulator.

As required for the application, one meter assembly may be integrally mounted and a second remotely mounted in series. Only one control valve (manual or automatic) may be installed in the system. The meter assemblies are designed to permit ganging multiple meters for wall mounting to multiple feed points.

Several ejector choices are available for the Series NXT3000 system.

EJ100/200/500 ejectors can be used for general applications. These incorporate an O-ring and diaphragm type check valve. For more demanding applications – for on-off service, anti-siphon and high back pressure, up to 1380 kPa, the EJ17 ejector can be used. In addition, a Chlor-A-Vac chemical induction unit can be used as the vacuum source for the system.

For applications requiring uninterrupted gas feed a built-in automatic changeover function is provided in every vacuum regulator. Only two vacuum regulators are required. No separate changeover module or valve is required, but for complex vacuum changeover systems the Series NXT3000 vacuum regulators can be used with the Capital Controls series of automatic vacuum switchover modules.

Only one vacuum regulator is required to feed maximum capacities up to 250 kg/d (chlorine). Maximum capacities for other gases are as follows: Sulphur Dioxide – same as chlorine; Ammonia – 120 kg/d; Carbon Dioxide – 170 kg/d The maximum feed capacity is dependent on the gas source.


ADVANCE® Gas Feeder Series WX4100

ADVANCE® Gas Feeder Series FX4000


Design Features

• Modern Design: Operates on sonic principle. No DP regulation required. Fewer parts improve   reliability and provide ease of maintenance.
• Modularity: System consists of vacuum regulator, meter assembly and ejector. One vacuum regulator for all capacities up to 230 kg/d.
• Inlet Valve Body and Spring: Both are manufactured from Hastelloy-C and warranted for life.
• Versatility: System adapts to automatic vacuum changeover by simply adding a second vacuum regulator. No separate changeover module required.
• Safe Operation: All vacuum operation prevents escape of gas to atmosphere.
• Minimum Maintenance: Simple design minimizes routine maintenance. Maintenance kits available for all major components.
• Superior Warranty: Vacuum regulator and meter assembly carry 3-year warranty.


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