Common Sampling Challenges

Safer, more representative sampling for difficult process conditions

The right sampling system depends on where the sample is taken, how representative it must be, what hazards are present, and how the operator will safely collect and transfer the sample.  Here are some common sampling challenges that we can help solve for you:

  • Representative samples: Reduce contamination, carryover, and reduce contamination and carryover.
  • Reduced Operator exposure: Use contained dispensing, venting, cabinets, septum bottles, or syringe sampling.
  • Corrosive media: Configure wetted parts around chemical compatibility requirements.
  • Vacuum or pressure: Match the sampling system to actual process conditions.
  • Retrofit constraints: Adapt sampling points to existing vessels, nozzles, and large pipelines.

Selection Guide

Choose the right sampling starting point

Your application Recommended starting point Why it fits
Sampling from a process pipeline Inline sampler Designed for representative samples from horizontal or vertical process piping.
Sampling from a large pipeline or vessel wall Surface mounted sampler Bolts to a vessel pad flange or large pipeline connection when inline installation is difficult.
Sampling from a reactor Vessel mounted sampling system Uses a dip pipe, site vacuum, eductor, vessel pressure, or a recirculating pump.
Corrosive media PFA-lined or corrosion-resistant wetted parts Protects wetted surfaces in aggressive chemical service.
Toxic, fuming, or flammable media Contained dispensing options Reduces operator exposure and routes vapors away from the sampling point.

Sampling Product Families


 

Inline Samplers

Sampling System Case Study 2

Wafer-style sampling valves for representative samples directly from horizontal or vertical process pipelines.

• Pipelines                    
Raw material checks 
Corrosive streams     
Vacuum or pressure  

 

Surface Mounted Samplers

IMG_5673

Sampling valves for vessel walls, vessel bottoms, and large process pipelines where inline or dip-pipe sampling may not be practical.

Large pipelines 
Vessel walls      
Viscous fluids   
Retrofits            

 

Vessel Mounted Sampling Systems

IMG_29691

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

Reactors             
Storage vessels 
Batch sampling  
Recirculation      

 

Sample Dispensing

samp_24Bottle connections, septum assemblies, syringe samplers, cabinets, venting, and sample temperature control.

Operator protection 
Contained transfer   
Vapor routing           
Bottle handling         

 

Why De Dietrich?

samp_24

Representative sample quality

Configured to reduce dead legs, carryover, and configured to reduce dead legs and carryover.

Operator protection

Contained dispensing, vent connections, cabinets, septum assemblies, and syringe samplers.

Corrosion-resistant construction

Stainless steel, PTFE/PFA-lined components, and other corrosion-resistant options.

Engineered around your process

Built around process conditions, bottle format, utilities, and plant requirements.

Need help selecting a sampling solution?

Send us your process conditions, sample source, material requirements and containment needs.  Our team can help identify a practical sampling approach for your application.