Pure-Flo®

“Our customers have been more than pleased with the performance of the Pure-Flo Tank Bottom Diaphragm Valve. Several
customers have contracted us to retrofit their bioreactors with the Pure-Flo Valve. In continual dealings and communications
with ITT, the service has been first class. We would definitely recommend ITT to any of our customers and feel that
the ITT design only enhances our workmanship and installation in presenting a desirable package to our customers.”
Fred R. Schaefer, Jr. , Mechanical Superintendent, The Whiting-Turner Contracting Company, Baltimore, Maryland
The Tank Bottom Diaphragm Valve is the first weir-type
diaphragm valve designed specifically for tank bottom
applications in the Pharmaceutical and Bioprocessing
Industries.
This unique design maintains the same inherent design
features as the process proven Pure-Flo Diaphragm Valve,
including a weir-type design that maintains a streamlined
fluid passage while minimizing the interior sump at the
bottom of a vessel. Machined from 316L stainless steel
bar stock, this fabrication is available with a 30° standard
outlet port. A 45° outlet port can be furnished on request
and is ideally suited for vessels with jackets to prevent the
removal of excess jacketing.
The Pure-Flo Tank Bottom Valve is designed in accordance
with the ASME Boiler and Pressure Vessel Code, Section
VIII, Division #1. In accordance with this standard, heat
numbers are provided for all fluid contact surfaces and
the valve body fasteners. This includes the valve body,
tube, weld wire, ferrule (as applicable) and fasteners. The
heat numbers are traceable to Certified Mill Test Reports
(CMTR) which can greatly facilitate the validation process
and are available upon request.
Available with the compact Advantage actuator or Dia-
Flo actuator, the Tank Bottom Valve can be pneumatically
operated and controlled. In addition, the Tank Bottom
Valve can also be utilized in throttling applications to
control the flow at the bottom of the vessel with the use
of an Advantage actuator with Moore Positioner or the
Dualrange Control Valve.
Applications range from draining and controlling the flow
to the sampling of a vessel fluid. When dealing with a
valuable process fluid, you may opt to use the 1/2" Tank
Sampling Valve specifically designed for weld attachment
to the side of a vessel and able to minimize the flow during
sample inspections. In addition, the Tank Bottom
Valve, which is designed for weld attachment to the vessel
surface, is available with ANSI flanges as a special
request item. Available sizes are 1/2"–4" (DN 15–100).
The Pure-Flo ® Tank Bottom Diaphragm Valve is patented under US Patent
Number 5,227,401.
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SPECIALTY VALVE/TANK BOTTOM