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Tank-Bottom Valves

ASEPCO Radial-Diaphragm™ Tank-Bottom Valves

2-inch tank bottom 4-inch tank bottom

Designed for critical aseptic processing applications

The ASEPCO Radial-Diaphragm Tank-Bottom Valve is used as original equipment by the two largest U.S. bioreactor manufacturers, and it is experiencing growing popularity in the food and chemical industries. See the drawing to understand why the most forward-thinking engineers in aseptic processing have made ASEPCO valves a standard.

The Tank-Bottom Valve can be ported to allow it to be C/SIP or flushed while closed, providing access through the valve body to the downstream lines. The ability to quickly flush or C/SIP while the valve is closed solves downstream problems simply and speeds the product changeover.

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Features & Benefits

Asepco Tank bottom valve showing callouts

  • The only truly flush diaphragm tank valve
  • No pocket, unlike other designs
  • Completely drainable
  • Welds flush to tank bottom—eliminates gaskets, bolts, and seams
  • An award winner—Innovation in Pharmaceutical Processing Award: Bioprocessing & Injectable Drug Manufacturing
  • Meets ASME code requirements
  • Delivered with material test reports (MTRs)
  • Serialized and stamped with a unique heat number
  • Uses a simple clamp for disassembly and inspection, needs no tools
  • Uses a Radial-Diaphragm design—reliable seal, easily cleanable
  • Reliable delivery—your project stays on time
  • Saves 85% of routine maintenance cost over weir valves, forever


Tank-Bottom Valve drawings and measurements tables
Material Option 316L, AL6XN, Hastelloy
Machined from solid, hot-rolled, bar stock
Sizes 1/2” through 4”
Outlet Connections Hygienic clamp, tube end, and others available
Maximum Pressure 250 psi
Maximum Temperature 135°C/275°F
Marking Each valve is marked for full material traceability
ISO All product and procedures are governed by our ISO Quality Assurance Program
Standards BPE, CE-PED, ASME
Packaging All valves are separately packed in foam packing
Non-Standard Custom Products Contact our Customer Service department for any non-standard valve requirement

Datasheet and Additional Resources

download document Datasheet: ASEPCO Radial-Diaphragm™ Tank-Bottom Valve Datasheet


view animation Video: Tank-Bottom Valve Animation


more about this product Killer Apps: ASEPCO’s 4-Inch Tank-Bottom Valve


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