Wastewater Sampling Techniques

Efcon Water® uses 5 different wastewater sampling techniques. In the overview below we make a distinction between:

Read more about our wastewater sampling techniques by choosing one of them below. You will enter a page where all other important information is gathered. A PDF file with a summary of all specifications can be downloaded too.

If you have a question about the possibilities of our wastewater sampling techniques, please call +31 347 342 777 or send an e-mail to info@avm-efcon.nl. It is also possible to contact us via our contact form. Our staff will gladly assist you.

  • Vacuum Sampler

    Heavy duty Vacuum Sampler with high suction speed (open channels or rivers)

    EN 16479, EN ISO 5667 and NEN 6600-1

    Application

    Suction sampler from open channels or wires (popular technique)





    Advantages

    Electric actuator
    Above the ground mounting
    Well known principle
    Self-protection against solids





    Matching Enclosures

    Efconomy Samplers
    Industrial Samplers
    Custom Made Projects
    Carrybox Samplers

    Disadvantages
    Multiple moving parts
    Switching contact in medium
    Maintenance frequency
    Suction hose at turbulent spot
    Aeration effect on sample




    Conditions

    Minimum diameter of 15 mm
    Velocity in suction hose 0.5m/sec
    Suction hose has to be selfemptying




    Maintenance

    Cleaning of hose and suction chamber
    Cleaning of contacts and airfilter

  • Inline Guillotine Sampler

    Heavy duty ILS Guillotine Sampler for untreated wastewater / sludge water

    EN ISO 5667 / NEN 6600-1


    Application
    Heavy duty inline sampler from closed pipes (industrial technique)





    Advantages

    Robust Pneumatic actuator
    Simplicity of the system
    SS316 house and piston
    For raw wastewater and sludge sampling
    No sensors in medium
    Up to 2.5 Bar medium pressure 
    (optional up to 5 Bar)

    Matching Enclosures
    Efconomy Samplers
    Industrial Samplers
    Custom Made Projects


    Disadvantages

    Requires pneumatic air
    Requires flow stop for service






    Conditions

    Minimum diameter of 15 mm
    Main application in sampling raw wastewater
    Minimum flow velocity at horizontal pipe 0.5m/sec


    Maintenance

    Replace seals (in general every year)

  • Peristaltic Sampler

    9 mm Peristaltic Suction Sampler


    EN 16479 & EN 
    ISO 5667


    Application

    Suction sampler from open channels or wires (most used in portable applications)




    Advantages

    Electric actuators
    Above the ground mounting
    Well known principle
    Mostly used for portable systems





    Matching Enclosures

    Efconomy Samplers
    Industrial Samplers
    Custom Made Projects
    Carrybox Samplers

    Disadvantages
    High maintenance frequency
    Repeatabilety is tricky at small sample shots.
    Sample volume will vary at different suction hights
    Wear on expensive suction tube can become costly










    Maintenance
    Clean tubing an water indicator
    Replace tubing when worn out

  • Inline ILS 2W and 3W

    In Line Ball Valve samplers type ILS2W & ILS3W

    EN ISO 5667 & NEN 6600-1

    Application ILS 2W
    Inline sampler from closed pipes (high temperature)

    Application ILS 3W
    Inline sampler from closed pipes with sample flush through (up to 10 bar)

    Advantages
    Electric and pneumatic actuators
    Simplicity of the system
    Several materials to select (SS, PVC and PP)
    No contacts in medium
    Selectable pressure class
    Low maintenance interval


    Matching Enclosures
    Efconomy Samplers
    Industrial Samplers
    Custom Made Projects


    Disadvantages ILS 2w & 3W
    Danger of blockage
    No hard solids allowed
    Not commenly used

    Disadvantages ILS 3W
    Risk of venturi after mounting
    Often not correctly installed or selected
    Flush water

    Conditions
    Sample hose should flush its own volume (4x) before sampling
    Velocity in sample hose should be 0.3 m/sec or equal or higher than the main flow velocity
    Keep sample hose as short as possible

    Maintenance ILS 2W & ILS 3W
    Replace seals (in general every year)
    Check SS rotating ball on scratches, if so replace the valve

    Maintenance ILS 3W
    Cleaning of sample chamber