ITT Engineered Valves
Pure-Flo Bypass Valve
The Pure-Flo Bypass Valve is a hygienic diaphragm valve that combines two flow paths in a single body: a larger main valve for rapid filling and a small integral bypass for slow, precise flow. It was developed to bring large vessels up to volume quickly without sacrificing accuracy at the end of the fill.
Product Benefits
- Speed versus control: Filling a large vessel through a single valve forces a compromise between speed and control.
- Two paths, one body: Pairing a full-size main path with a small bypass in one assembly lets operators fill fast and then throttle down to a gentle, precise top-off.
- Better batch accuracy: Batch accuracy improves without extra piping or a second installed valve.
- Fewer welds to validate: Because both paths share one hygienic body, there are fewer welds and connections to install, clean and validate than with a fabricated two-valve arrangement.
- Smaller footprint: That translates into a smaller footprint and a simpler cleaning story for quality teams.
Where It's Used
- Large tank filling: The design is aimed at biopharmaceutical process systems that fill large tanks.
- WFI, media and buffer: Most typical are water-for-injection (WFI) storage, media hold and buffer preparation vessels.
- Fast fill, precise finish: Any point of fill where a batch must reach volume quickly and then be finished precisely is a natural fit.
Good to Know
- Wrought stainless bodies: Bodies are machined from wrought stainless steel as standard.
- High-alloy options: AL6XN and Hastelloy cover more aggressive services, and other materials are available on request.
- Standard Pure-Flo topworks: The valve accepts standard Pure-Flo topworks, so actuation and diaphragm choices follow the familiar Pure-Flo platform.
- Hygienic end connections: Tube-weld ends in common gauges, DIN/ISO standards and Tri-Clover Tri-Clamp sanitary connections are all available, making it straightforward to drop the valve into an existing clean-utility loop.
