Chlorine Gas Metering Systems DULCO®Vaq

In the metering system DULCO®Vaq, chlorine gas is safely handled under a vacuum. The negative pressure generated in the injector opens the vacuum dosing regulator fitted on the chlorine gas tank and the chlorine gas enters the water to be treated. Adjustment valves control the metering volume and flow meters precisely indicate the chlorine gas flow. A large number of individual configurations is provided for by the use of additional components, such as motorised control valves, injectors or vacuum switch-overs.

ProMinent DULCO®Vaq components are used for large-scale chlorine gas systems for applications in industry and the treatment of large volumes of water. Additional components, such as evaporators, pressure reducing valves, pressure switch-overs, metering systems and corresponding room equipment.

ProMinent experts consider the latest safety requirements when designing systems for specific projects.

Perfect safety for operators and users with ProMinent chlorine gas metering systems DULCO®Vaq.

  • Chlorine gas metering equipment up to 200 kg/h
  • Reliable water bath chlorine evaporator
  • Pressure and vacuum switch-over
  • Emergency switch-off system also for drum systems
  • Neutralisers / scrubbers
  • Different configurations of weighing systems
  • Booster pumps
  • Safety room equipment

Your benefits

  • Reliable, mature technology
  • Precise metering even with large flow volumes
  • High level of automation
  • Durable housing
  • Full range for DIN19606-compliant systems

Field of application

  • Potable water treatment
  • Waste water treatment
  • Cooling water treatment
  • Industrial water treatment
  • Swimming pool water treatment
  • Waste water treatment and waste water disinfection


Automatic Chlorine Gas Metering System DULCO®Vaq

Capacity: 12 g/h - 15 kg/h

The chlorine gas metering system DULCO®Vaq type PM 3610 C for automatically controlled metering of chlorine gas. Its simple operation offers safety and precision in accordance with the current state of technology and in line with DIN standards. more

Your benefits

  • Automatic chlorine gas metering
  • Plug and Play
  • DIN 19606-compliant
  • Panel-mounted system
  • Wide-ranging controllable motorised control valve
  • Functional cover hood

Automatic Emergency Shut-Off System for Chlorine Gas DULCO®Vaq

Automatic closure of chlorine gas valves in seconds.

The electrical emergency shut-down system provides additional safety for personnel and equipment by automatically closing off the chlorine gas supply. With its own operating unit and uninterrupted power supply, it reliably closes the chlorine gas valves even in the event of a power failure. more

Your benefits

  • Closes all kinds of chlorine gas valves within seconds in the event of an emergency
  • Electrically operated and equipped with an uninterrupted power supply (UPS)
  • Adjustable torque for secure closure
  • System-independent retrofitting of existing chlorine gas systems
  • Simple assembly and dismantling when changing bottles without the need for tools
  • Virtually maintenance-free

Chlorine Gas Metering System DULCO®Vaq

Capacity range 20 – 200 kg/h

DULCO®Vaq type PMR540 und 550C – high-performance free-standing unit for precise chlorine gas metering in water treatment more

Your benefits

  • Corrosion resistant thanks to epoxy-glass resin housing with reinforced frame
  • Positive operational control by vacuum
  • Additional safety thanks to vacuum non-return valve
  • Precisely adjustable by integral flow meter
  • High level of automation by innovative motorised control valve

Evaporator for Chlorine Gas DULCO®Vaq

Capacity range 50 – 200 kg/h

Evaporator DULCO®Vaq type PM3100C – for liquid chlorine applications and large chlorine gas systems – safe and reliable. more

Your benefits

  • Safe handling of large chlorine volumes of gas
  • Reliable water bath evaporator
  • Efficient heat transfer by spiral pipe
  • Long life time due to cathodic corrosion protection
  • High level of automation
  • Durable housing

Injector for Chlorine Gas DULCO®Vaq

Capacity: 12 g/h to 200 kg/h

Injectors for chlorine gas, series DULCO®Vaq, generate a stable vacuum even at high operating pressures. more

Your benefits

  • Safe vacuum generation
  • Up to 40 bar back pressure
  • Integrated non-return valve
  • Versatile installation models
  • Durable housing

Motor-Driven Control Valve for Chlorine Gas DULCO®Vaq

Capacity: 12 g/h to 15 kg/h

The motorised control valve for chlorine gas DULCO®Vaq type PM 3531 ensures precise electronically controlled metering of the chlorine gas flow. The linear control characteristic is guaranteed by an externally controlled step motor. more

Your benefits

  • Linear control action for precise metering
  • Multiple control and signalling functions
  • Automatic and manual operation
  • Calibratable
  • Automatic safety shut-off
  • Easy control e.g. using DULCOMARIN® or DACb controller

Neutraliser for Chlorine Gas DULCO®Vaq

Neutralisation of 50 – 500 kg of chlorine gas

Neutraliser DULCO®Vaq reliably draws escaped chlorine gas in the event of an alarm with the room air from the chlorine gas room and reliably neutralises it. more

Your benefits

  • Neutralises chlorine gas in the event of a leak
  • 99.9% neutralisation in the water jet pump
  • Safety and protection of the equipment
  • Automatic operation
  • Simple handling and maintenance

Pressure Switch-Over for Chlorine Gas DULCO®Vaq

Capacity range of up to 200 kg/h

DULCO®Vaq pressure switch-over type PM 481 for continuous chlorine gas supply with high capacities. more

Your benefits

  • Safe handling by means of automatic operation and pressure monitoring
  • Continuous operating thanks to uninterrupted supply of chlorine gas
  • Simple operation
  • Simple connection thanks to control supplied

Vacuum Dosing Regulator for Chlorine Gas DULCO®Vaq

Capacity: up to 200 kg/h

The vacuum dosing regulator DULCO®Vaq CGVa meters chlorine gas cost-effectively and highly efficiently. Maximum possible operating safety and reliability is ensured by the use of high-quality materials, such as tantalum and silver. more

Your benefits

  • Maximum safety thanks to the full vacuum system
  • Maximum operating safety and reliability by the use of high-quality materials, like tantalum and silver
  • Coordinated components and accessories
  • Integrated safety bleeding

Vacuum Switch-Over for Chlorine Gas DULCO®Vaq

Capacity: 12 g/h to 120 kg/h

Vacuum switches DULCO®Vaq PM 400 and 440 automatically and reliably switch between two chlorine gas storage tanks. They therefore ensure an uninterrupted chlorine gas supply, even if a chlorine gas storage tank becomes empty. more

Your benefits

  • Automatic switchover of chlorine gas sources
  • Purely vacuum-operated system without external auxiliary energy
  • Simple assembly and commissioning

Contact us

Wesley Sutton

Managing Director, ProMinent Fluid Controls UK Ltd.

»We are always available to help. Don't hesitate to contact us.«

+44 1530 560 555  Send request   

Close Form

Your Request

Personal Information

Further product +
Attachment Maximum file size 10 MB
Upload Next file

Personal Information

Please fill in all mandatory fields.
*Mandatory fields

Check and Send

Personal Information:
First name  
Customer ID
E-mail address
House no.
Callback Yes



1 2

ProMinent Newsletter - customized to your industry. Register now