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    VESSEL MOUNTED SAMPLING SYSTEMS

    Dip-pipe and recirculating sampling systems for reactors, storage vessels, and batch processing applications. 

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    Best Fit
     Overview Design OptionsFAQs

    Best Fit

    When to Use Vessel Mounted Sampling Systems

    Vessel mounted systems are the starting point for reactors, storage vessels, and batch processing applications where the sample is drawn through a dip pipe or recirculating arrangement. 

    • Reactors
    • Storage vessels
    • Batch process sampling
    • Dip-pipe sampling
    • Compact recirculating sampling
    • Applications requiring purge, wash, sight glass, or return line arrangements

    Overview

    Configured Around the Vessel, Process, and Utilities

    De Dietrich vessel mounted sampling systems are used for reactors, storage vessels, and batch processing applications where samples are drawn from the vessel through a dip pipe or recirculating arrangement. Systems can be configured around the required draw method, sample volume, containment level, materials of construction, and available plant utilities.

    The sample can be drawn through the dip pipe using site vacuum, eductor, vessel pressure, or a recirculating pump.

    Only one top nozzle is used for recirculating samplers - the same nozzle can pull the sample up and put the sample back in the vessel. Customers also add pH, conductivity, and other analytical transmitters into recirculating lines.

    • 350°F Temperature Range

    • 150 PSIG Pressure Range

    • PTFE / PFA-Lined Options

    • Custom System Arrangement

    Design Options

     Choosing a Vessel Sampling Arrangement
     
    Arrangement Best Fit Typical Reason to Choose It
    Single sampling system Simple vessel sampling Useful where site vacuum or vessel pressure is suitable and a compact arrangement is desired.
    Compact recirculating system Limited-space applications Useful where recirculation is needed but the operator area or skid envelope is limited.
    Recirculating sampling system

    Higher sample representativeness needs

    		 Useful where purge/wash, circulation, or return-to-vessel flow is important.

     

    Typical system elements

    • Dip pipe
    • Valves and manifolds
    • Sight glass or catchpot
    • Cabinet or operator interface
    • Nitrogen purge and wash connections
    • Return line where required

    Material and containment options

    • Stainless steel components
    • PTFE/PFA-lined components for corrosive media
    • Contained dispensing options
    • Purge/Flush capability on the sampler 

    FAQs
    Ultra Compact Vessel Sampler

    What is a vessel-mounted sampler?

    A vessel-mounted sampler is installed directly on a reactor, tank, or other process vessel to allow operators to safely collect representative samples from the process. These samplers provide direct access to vessel contents while helping maintain process containment and operator safety.

    When should a vessel-mounted sampler be used?

    Vessel-mounted samplers are ideal when samples must be taken directly from a reactor or process vessel to monitor reaction progress, verify product quality, or support process control. They are commonly used in batch manufacturing operations where representative vessel samples are critical.

    What are the advantages of a vessel-mounted sampler?

    Vessel-mounted samplers provide direct access to process material, allowing operators to obtain representative samples without opening manways or exposing the process to contamination. Benefits include improved safety, reduced product loss, enhanced process control, and more consistent sampling results.

    What applications are best suited for vessel-mounted samplers?

    Vessel-mounted samplers are commonly used in:

    • Chemical manufacturing
    • Pharmaceutical production
    • Specialty chemical processing
    • Agrochemical production
    • Polymer manufacturing
    • Pilot plants and scale-up facilities
    • Hazardous and corrosive chemical applications

    Can vessel-mounted samplers be installed on glass-lined reactors?

    Yes. Vessel-mounted samplers are frequently used on glass-lined reactors and other corrosion-resistant process vessels where safe, representative sampling is required throughout the batch process.

    Can vessel-mounted samplers be used with hazardous or toxic materials?

    Yes. Vessel-mounted samplers are often selected for hazardous, toxic, corrosive, or flammable applications because they help maintain containment and reduce operator exposure during sample collection.

    Can samples be taken while the reactor is operating?

    Yes. Vessel-mounted samplers are designed to allow sampling during normal process operation, enabling operators to monitor reaction progress and product quality without interrupting production.

    Can vessel-mounted samplers be used in high-temperature applications?

    Yes. Vessel-mounted samplers can be designed for elevated process temperatures and are commonly used in applications where reaction monitoring is required throughout the heating and cooling phases of a batch process.

    Can vessel-mounted samplers be used on pressurized reactors?

    Yes. Vessel-mounted samplers can be designed to safely collect samples from pressurized vessels while maintaining process integrity and operator safety. Proper sampler selection should be based on the application's pressure and temperature requirements.

    How do I choose the right vessel-mounted sampler?

    Selecting the right sampler depends on several factors, including:

    • Process pressure and temperature
    • Chemical compatibility
    • Sample volume requirements
    • Frequency of sampling
    • Containment requirements
    • Vessel design and configuration

    Working with an experienced supplier can help ensure the best solution for the application.

    What is the difference between a vessel-mounted sampler and a surface-mounted sampler?

    A vessel-mounted sampler is installed directly on a reactor or process vessel top nozzle and is specifically designed to collect representative samples from within the vessel. Surface-mounted samplers are mounted on the sides of vessels or large process piping. The best choice depends on the process, vessel design, and sampling objectives.

    How often should a reactor be sampled during a batch process?

    Sampling frequency depends on the process and product requirements. Some applications may require only a few samples per batch, while others require frequent sampling to monitor critical reaction parameters and ensure product specifications are met.

    Need help selecting a vessel sampling arrangement?

    Send us the vessel details, process conditions, sample volume, draw method preference, and containment requirements.

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