ITT Engineered Valves
Pure-Flo Two-Way Diaphragm Valve
The Pure-Flo two-way diaphragm valve is the core hygienic weir valve of the family: a straight-through 316L stainless valve in which a flexible diaphragm isolates all working parts from the process. Positive closure happens where the resilient diaphragm bead meets the metal weir.
Product Benefits
- No packing gland: With no packing gland and no product-wetted mechanism, the design is inherently clean and simple to maintain.
- Built for CIP and SIP: The smooth, contoured body and fine surface finishes allow cleaning and sterilizing in place without disassembly.
- Standards compliant: The hygienic design complies with FDA, USDA, ASME BPE and USP requirements.
- One body, two topworks: Manual and pneumatic topworks mount the same bodies, so a single valve line covers hand-operated and automated duties and standardizes spares.
Where It's Used
- Hygienic workhorse: It is the everyday hygienic valve of pharmaceutical, bioprocessing and fine-chemical plants.
- Sterile and high-purity lines: Because the diaphragm seals the mechanism away from the product, it suits sterile and high-purity service.
- General process duty: It is equally at home on ordinary hygienic process lines.
- Washdown resistance: It resists alcohol and most caustic washdowns.
Good to Know
- Three body forms: Bodies are 316L stainless in forged, cast and wrought forms.
- Wide diaphragm range: Diaphragms span several elastomers plus PTFE grades, including an enhanced PTFE option for longer life.
- Standard connections: Hygienic clamp, tubing and international end connections are standard offerings.
- Maintenance in place: The top-entry design allows diaphragm replacement and routine maintenance with the body left welded or clamped in line.
- The key selection call: Diaphragm material selection is the main sizing decision, balancing chemistry, temperature and cycle life.
