Chicago Faucets 831-PVDF
The Chicago Faucets 831-PVDF is a commercial-grade, wall-mounted laboratory pure water fitting engineered specifically to support continuous looping distribution systems for deionized (DI), distilled, or reverse osmosis (RO) water. Traditional plumbing designs often suffer from "dead legs"—pockets of stagnant water behind the valve where bio-films can grow and trace minerals can slowly leach back into the flow path. To protect the absolute integrity of your water supply, the 831-PVDF utilizes an advanced recirculating design. When the outlet is closed, water continues to circulate up to the valve core and loop back through the return line, completely preventing fluid stagnation and ensuring maximum chemical purity at the exact moment of activation.
To safeguard pure water against metallic degradation, this specialized fitting features an entirely inert, wetted fluid path made from premium, all-virgin natural PTFE. This material shield guarantees that zero trace metals or chemical plasticizers migrate into sensitive experimental formulas or analytical samples. Precise control is delivered through a high-durability, low-torque needle valve mechanism fitted with encapsulated PTFE seals to prevent systemic dripping and structural wear. Mounted securely to service turrets, backsplashes, or laboratory walls, this single-hole fixture includes a clear "DI" indicator button complying with SEFA color-coding safety recommendations, making it an essential component for demanding medical, industrial, and academic research settings.
- Component Type: Wall-Mounted Recirculating Pure Water Fitting
- Design Classification: Genuine Chicago Faucets OEM Hardware
- Wetted Fluid Path: All-Virgin Natural PTFE Material (Completely non-metallic to eliminate leaching)
- Flow Mechanism: Recirculating continuous loop configuration to systematically eliminate dead leg stagnation
- Valve Core Style: Low-torque needle valve with robust, encapsulated PTFE seals
- Inlet / Outlet Connection: 3/8" NPT Female Thread Interfaces
- Maximum Fluid Operating Pressure: Rated for heavy-duty systems up to 150 PSI
- Compliance Standards: Color-coded handle indicators designed to follow SEFA Recommended Practice No. 7 guidelines
- Target Applications: Pure deionized (DI) water loops, pharmaceutical production facilities, clinical chemistry labs, university research hubs, and high-precision testing environments
