Searching for the right sampling system?

CRP design and manufacture a wide range of Sampling Valves and Systems for sampling liquid chemicals.

From simple inline samplers, to recirculating vessel sampling systems and bespoke samplers. All providing safe sample dispensing of corrosive media, safeguarding the operator and the environment.

Whether you need a custom design or one of our standard sampling systems we are here to guide you through the process.

With all our samplers and sampling systems we would recommend that the sample bottle is contained within a safety cabinet, this protects the bottle, operators and environment. Our standard cabinet is stainless steel with a laminated glass door. However, sampling cabinets made from polypropylene are alternatively available.

 

Inline Sampling Systems

CRP’s inline samplers are widely used for sampling a range of chemicals, from mild liquids to highly corrosive acids such as HCL or Nitric Acid. We offer multiple models, all designed for safety, ease of use, and compliance with industry standards.

Key Features:

  • Stainless steel, Hastelloy or PFA wetted parts
  • ASME or DIN compatibility
  • Sizes from ½” NB to 6″ NB
  • Spring return handles with locking device for safety
  • Remote actuation via pneumatic actuator as an option
  • Sample dispensing through: nozzle, septum-capped bottles, or direct bottle fill

Our standard Inline Samplers:

  • SD IL 300 / 400 Series (wafer pattern valves)
  • Volumetric Samplers – Flowserve APN SG, Atopro
  • Metallic Flanged Sampling Valves

These valves offer environmentally friendly, safe, and representative sampling without the need to pre-run the process fluid.

 

Recirculating Vessel Sampling Systems

These systems are ideal for batch sampling from reactor vessels. They incorporate a pneumatic pump that circulates the sample through the system before returning it to the vessel. This ensures a truly representative sample.

Design & Operation:

  • Materials: PFA / PTFE-lined piping, borosilicate glass, PTFE seals
  • Pumps: Solid PTFE diaphragm pumps (≤100°C) or tubular PTFE diaphragm pumps (≤180°C)
  • Sight glasses: Tubular or bullseye for visual inspection
  • Dispensing via SD IL 400 Inline Sampler
  • Sample is drawn up through a continuously PTFE lined dip pipe.
  • Pump circulates fluid through the system before sampling
  • After sampling, nitrogen or wash liquor can purge the system
  • Liquor is discharged back via an instrument tee or dip pipe assembly

Optional Features:

  • pH, temperature, or turbidity sensors
  • Powder seeding
  • Double isolation valves
  • Custom safety enclosures

The Compact Recirculating Sampling System is also available, offering the same functionality in a reduced footprint.

 

Non-Recirculating Vessel Samplers

These systems are ideal for direct vessel sampling where circulation isn’t needed. Samples are drawn through a continuously PTFE lined dip pipe and captured in a sight glass, then dispensed into a bottle.

Design & Operation:

  • Pressurised vessels: Push sample into sight glass
  • Atmospheric or vacuum vessels: Draw sample via vacuum
  • Materials: Stainless steel or PFA/PTFE lined
  • Robust 9 mm borosilicate glass with acrylic/FEP safety shield
  • FFKM seal for purity and corrosion resistance in PFA Lined Ball
  • Float Sight Glass
  • Integrated purge, vent, and wash options
  • Flexible sight glass volume options
  • Sampling via SD IL 400 valve (recommended for zero product hold-up)

Special designs are available for cryogenic, high-pressure, or high-temperature services

 

Surface Mount Samplers

These connect directly to a vessel or large diameter pipe wall, making them ideal for sampling from the side or base of tanks and reactors.

Design & Operation:

  • Conical globe valve design with PTFE seat
  • Connection options: ASME/DIN flanges, Tri-Clamp, BSP/NPT threads
  • Spring return safety handle with padlockable feature
  • Nitrogen purge to clear sample lines
  • Minimal product hold-up, even on long insertion lengths
  • Materials: Stainless steel or exotic alloys (e.g. Hastelloy)
  • Suitable for temperatures up to 200°C and 16 barg, with higher spec designs available.

 

Bespoke Sampling Systems

When a standard solution doesn’t fit, CRP engineers custom sampling systems tailored to your process, media, and operating conditions.

 

To help guide you in selecting the right sampling system, we offer a detailed questionnaire.