The Pure-Flo® hygienic valve is a spin-off of the process proven Dia-Flo diaphragm valve line, now more than 50 years old. Pure-Flo assemblies and fabrications have been developed primarily to minimize contact surfaces and hold up volume. The Pure-Flo product line offers a complete line of cast, forged and wrought bodies to meet the needs and requirements of your process application. The size range, dimensional standards, as well as stainless alloys available for the various Pure-Flo body types are as follows:
| Cast | Forged | Wrought | |
| ANSI Size | 1/2" - 6" | Bio-Tek, 1/2"-4" | Bio-Tek, 1/2" - 4"* |
| DIN/ISO Size | DN 15 - DN 150 | DN 8 - DN 100 | DN 8 - DN 100 |
| 316L Stainless Alloy | ASTM A351 Grade CF 3M | Dual certified to ASTM A182 Grade 316L,S9 DIN 17440, 1.4435 | ASTM A479, 316L |
| Dimensional Standards | OD Tubing, Pipe, ISO/DIN | OD Tubing, Pipe, ISO/DIN/SMS | OD Tubing, Pipe, ISO/DIN |
* Standard on tank bottom valves, divert valves and any block bodied fabrications.