ITT Engineered Valves
Pure-Flo 913 Stainless Steel Manual Diaphragm Valve
The Pure-Flo 913 is a manual weir diaphragm valve with a stainless steel bonnet and handwheel, developed for the most stringent biopharmaceutical processing. It is the pick where reliability, corrosion resistance and secondary product containment are critical.
Product Benefits
- All-stainless topworks: The topworks shrug off aggressive cleaning regimes, resisting alcohol and most caustic washdowns.
- Autoclavable either way: Both the standard 913 and the sealed 913S can be autoclaved.
- Secondary containment: The sealed option adds secondary product containment, a meaningful safeguard on potent or sterile processes.
- Smooth, repeatable operation: A brass stem bushing, permanent lubrication, adjustable travel stop, O-ring seals and a visual position indicator keep operation consistent over many cycles.
Where It's Used
- Critical biopharm processing: Its home is pharmaceutical, bioprocessing and fine-chemical facilities.
- Repeated sterilization: Valves there see repeated sterilization and harsh washdown chemistry.
- No-compromise lines: It suits lines where the process owner cannot compromise on topworks corrosion resistance or containment.
Good to Know
- 316L wetted path: The wetted path is a 316L stainless body with PTFE or elastomer diaphragm options.
- Full connection range: Hygienic clamp, tubing and international end connections are offered across the size range.
- Weir-valve fundamentals: Like all Pure-Flo weir valves, the diaphragm isolates the mechanism from the product and the top-entry bonnet permits in-line maintenance.
- Choosing 913 or 913S: Take the sealed 913S when secondary containment or added protection of the topworks is a requirement; the unsealed 913 covers everything else.






