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Sample Valves

ASEPCO Weirless Radial-Diaphragm™
Sample Valves

Truly representative sampling, even in dirty air!

Sample ValveFeatures & BenefitsSpecificationsTank SamplingDatasheet & Resources
Asepco Sample Valve full and cutaway images side by side
You spoke… We listened! Our hydrodynamic design is based on your request for enhanced temperature control and sample system cleanability. We hired a rocket scientist to help design it, so you don’t have to be one to use it. ASEPCO’s valves don’t add complications; instead they are proven to simplify maintenance and reduce downtime. And, they keep on saving you money every year they are in use.
Valve sizes: 0.5″

Sample Valve with Callouts

  • Improved cleanability created by the angle of the fittings entering the valve body
  • Excellent drainability created by the “V” shape inside the valve chamber
  • Allows closer jacketing to tank because fittings are angled away from vessel at a quicker rate
  • Improved tank cleanability because the tip of the diaphragm seals on the ID of the vessel wall
  • Unique ASEPCO port that allows through the chamber CIP/SIP, ensuring a truly representative sample every time
  • Simple “Sample and Steam” valve body allows full steaming while valve is closed
Sample Valve spec tables with schematics
Material 316L, AL6XN, Hastelloy
Machined from solid, hot-rolled, bar stock
Surface finish Max. 20 micro-inch Ra (0.5 um Ra), electropolished
Max. 15 micro-inch Ra (0.375 um Ra), electropolished
Max. 10 micro-inch Ra (0.25 um Ra), electropolished
Mounting sizes 1-inch to 3-inch clamp or weld-in
Inlet size 1/2 inch
CIP/SIP port/outlet connections Standard: 1/2-inch hygienic clamp, 1/2-inch tube end (others available)
Maximum pressure (valve body pressure only)
ASME vessels: 250 psi (17 bar)
PED vessels: 175 psi (12 bar)
Maximum temperature Varies from 135°C/275°F to 260°C/500°F depending on diaphragm material
Marking Each valve is serialized and marked for full material traceability
ISO All products and procedures are governed by our ISO Quality Assurance Program
Standards BPE, CE-PED, ASME
Actuators Manual or compact pneumatic, fail open or closed
Diaphragms Silicone, Silicone Plus, EPDM, EPDM Plus, Viton, PTFE

For the complete specifications, reference the ASEPCO Sample Valve Datasheet.

Tank sampling drawing featuring the ASEPCO Radial-Diaphragm Sample Valve

You mean I can take a truly representative sample in an uncontrolled environment??

It’s simple with this 4-valve rig from ASEPCO, and it’s impossible to do so easily and reliably any other way.

Just follow these simple steps:

  1. Autoclave a bagged sample bottle with a filter and an ASEPCO valve (V3) sealing the opening.
  2. Unbag the sample bottle as shown, connecting the closed V3 to the closed tank sample Valve V2.
  3. Steam behind the flow paths of V2 and V3 as shown in pink.
  4. Close steam source (V1) and condensate drain (V4). You now have a sterile path between your process and your sample bottle.
  5. Open the sample bottle (V3) and the tank sample valve (V2), and take your sample as shown in blue.
  6. Close the sample valve (V2), then the sample receptacle valve (V3). Drain V4 (lose less than 15 ml of product with the ASEPCO close-coupled condensate valve) and remove your sample bottle.

CONGRATULATIONS! You have a sample that is truly representative of your process fluid. You can do this reliably at any time during the process, each time using the behind-the-seat flowpath design of ASEPCO valves to ensure the aseptic control of your sample.

download document Datasheet: ASEPCO Weirless Radial-Diaphragm™ Sample Valve Datasheet


view animation Video: Sample Valve Animation


more about this product Schematics: The ASEPCO Tank Sampling Schematic


more about this product Killer Apps: Sample Valve


more about this product Killer Apps: Six Deadly Sampling Sins


more about this product Article: Valve Basics


ask Asepco For help or to request more information, contact

For a printable version of this webpage that includes the product information, features & benefits, specifications, and sampling drawing, download the PDF.

pdf-download-icon ASEPCO Weirless Radial-Diaphragm™ Sample Valve Datasheet


We specialize in customization. Please contact our Customer Service Department for any non-standard product requirement (800) 882-3886.