ITT Diaflo Valves Distributor
Bayou Industrial is a ITT Dia-Flo diaphragm valves and ITT Grinnell valve master distributor. Our specialty is locating hard-to-find valves, so we are your perfect partner for matching obsolete products to current models.

Call Bayou Industrial 24/7 for Your ITT Dia-Flo Diaphragm Valves
We are an ITT Dia-Flo stocking distributor. Let us cross-reference your old Grinnell valve or find a replacement for a discontinued model.
ITT Dia-Flo Diaphragm Valves
ITT Dia-Flo manufactures weir-type and straightway diaphragm valves in various materials and customized options for a wide range of applications and industrial sectors.
Weir-Type Diaphragm Valves
Weir-type diaphragm valves feature a raised weir in the flow path for better throttling, fluid flow, and shutoff.
- Body Materials: Stainless steel, cast or ductile iron, high alloys, PVC, Kynar
- Diaphragm Materials: PTFE, EPDM, Viton and others
- Lining: Thermoplastic (PFA, ETFE, polypropylene, PVDF, PVC), rubber (hard or soft, neoprene, chlorobutyl), glass or unlined bodies.
- Applications: Chemical processing, power generation, pharmaceuticals, water, and wastewater treatment
Models like the Tefzel-lined ITT Dia-Flo 2559 diaphragm valve is also particularly effective for handling corrosive, abrasive, or viscous fluids as well as acids. These valves are the standard in Demineralized water systems.
Straightway Diaphragm Valves
Straightway diaphragm valves are well-suited for applications requiring minimal flow resistance. ITT Dia-Flo straightway diaphragm valves have a reduced risk of clogging due to the straight-through design.
- Body Materials: Stainless or cast steel, cast or ductile iron, among others
- Diaphragm Materials: EPDM, PTFE, Butyl, Neoprene and others
- Lining: Thermoplastic (ETFE, polypropylene), rubber (hard or soft, neoprene, chlorobutyl), glass and other materials
- Features: Bubble-tight shutoff, low maintenance, negligible pressure drop, full port flow
- Applications: Chemical manufacturing, water treatment, mining and minerals, pulp and paper, power, Demin water systems and others.
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