ITT Grinnell 4x4x3 Diaphragm Valve Stainless Steel Sanitary Tri-Clamp

ITT Grinnell 4x4x3 Diaphragm Valve Stainless Steel Sanitary Tri-Clamp

This ITT Grinnell sanitary diaphragm valve features a 4x4x3 configuration with stainless steel body construction and tri-clamp (sanitary) end connections. Diaphragm valves of this type use a flexible membrane pressed against a weir or seat to control flow, creating a bubble-tight shutoff with no internal crevices — a key requirement wherever contamination control matters. The valve is operated by a grey cast handwheel that compresses the diaphragm via a central stem assembly, and the bonnet is secured with four hex bolts.

Specifications & What's Included

• Manufacturer: ITT Grinnell
• Configuration: 4x4x3 (body x inlet x outlet nominal sizing)
• Valve type: Sanitary diaphragm valve, straight-through 2-way
• Body material: Stainless steel
• End connections: Tri-clamp (sanitary) both ends
• Actuation: Manual handwheel (grey cast, multi-lobe)
• Bonnet fasteners: Four hex socket stainless steel cap screws
• Diaphragm seal: Black elastomer diaphragm, visible and intact
• Body casting mark: A91 (stamped on body)
• Includes: Valve only — no clamps, gaskets, or additional hardware

Applications

ITT Grinnell diaphragm valves are standard components in sanitary fluid-handling systems where cleanability, sterility, and contamination-free shutoff are required. They are widely used in pharmaceutical manufacturing, biotechnology processing, food and beverage production, dairy systems, and clean-in-place (CIP) and steam-in-place (SIP) piping circuits. The tri-clamp end connections follow the standard sanitary fitting system (also known as Tri-Clover or DIN 32676), making this valve compatible with standard sanitary tubing, fittings, and clamps across those industries. The absence of internal pockets or threads in the flow path means the valve drains fully and resists bacterial harborage — a property that makes diaphragm valves the preferred choice in hygienic process lines. ITT Grinnell (a division of ITT Corporation) has been a major supplier of sanitary valves and fittings for industrial process systems for decades.