TOP-FLO® Bonnet Assemblies For Diaphragm Valves

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TOP-FLO® manual bonnets offer many features that have been carefully designed with the user in mind. The advanced bonnet design takes into account environmental stresses such as cleanability, reliability, autoclave use, adjustment, and ease of maintenance. 100% BPE Compliant with full material traceability.

#09, #10, #12, #15, #18A, and #60 bonnet assemblies.


The TOP-FLO® stainless steel bonnets are produced using the investment casting process resulting in a durable and lightweight valve operator. Stainless steel bonnets are electropolished externally providing a bright and sanitary exterior that also enhances its corrosion resistance. Ergonomically designed thermoplastic hand wheel and highly visible yellow indicator are standard on stainless steel bonnets size 1/2”-2. Bonnet sizes 2-1/2”- 4 have electropolished stainless steel bodies with stainless steel handwheels. All manual bonnet versions have sanitary internals as standard.


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