Chicago Faucets 898-001JKNF

The Chicago Faucets 898-001JKNF is a commercial-grade check valve kit engineered as a genuine direct OEM replacement solution for wall-mounted service sink faucets. This mechanical maintenance package includes a matching pair of factory check valves designed to protect building water supply grids from backflow and cross-flow contamination. In high-demand commercial utility setups—such as school janitorial closets, hospital sanitation rooms, airport maintenance bays, and institutional kitchens—service faucets operate under continuous pressure while mixed hot and cold water streams run simultaneously. Without functional, tight-sealing internal check valves, localized pressure fluctuations can cause hot water to force its way into cold supply lines (or vice versa). This unintended blending undermines temperature control, compromises system safety, and violates municipal plumbing codes.

Precision-molded from premium, chemical-resistant industrial materials, these compact check valves are engineered to drop directly into the integrated check stop supply arms or supply configurations of standard Chicago Faucets master assemblies. Because these components operate continuously hidden within the fixture's internal waterways, they are subjected to constant friction, mineral scaling, and chemical degradation from treated city water networks. Replacing worn out, sticking, or calcified valves with this authentic factory-original kit restores crisp, one-way fluid control and guarantees zero bleed-through between supply pipes. Facility managers who standardize on genuine Chicago Faucets maintenance parts eliminate the loose physical tolerances, premature sealing failures, and risk of property damage associated with generic aftermarket alternatives.

Call us at 888-503-7937 with questions or for quotes on bulk pricing. We are an authorized, well-trusted Chicago Faucets supplier.