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Product Description

The Tank Bottom Diaphragm Valve is designed for use at the bottom of a tank or vessel to drain or sample while minimizing the interior sump and preventing any dead leg for bacteria or microorganism entrapment.

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Sterile Barrier

Standard Sizes: 1/2″–4″ (DN 15–100)
316L Stainless Steel Bar Stock ASME SA-479
(UNS S31603), 1/2″–4″ (DN 15–100)

Tank Connection:
The tank interface surface is designed for a weld attachment. However, ANSI flanges can be ordered upon special request.

Drain Port End Connections:
Standard outlet port is on a 30° angle. 45° angle is available upon special request.


  • 14, 16 Gauge O.D. Tubing, dependent on size.
  • Schedule 5, 10, and 40 Pip

Quick Disconnect

  • Tri-Clover Tri-Clamp
  • Cherry Burrell “S”, “Q”, and “I” line®
  • Superior Stainless, Valex and G&H ferrules

Design Compliance:
ASME Boiler and Pressure Vessel Code Section VIII, Division #1.
Patent # 5,227,40