Caleffi 5350 Series 1-Inch NPT Adjustable Pressure Reducing Valve - 1.5 Inch
Caleffi 5350 Series 1-Inch NPT Adjustable Pressure Reducing Valve - 1.5 Inch
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📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →| Specification Parameter | Official Factory Value |
|---|---|
| Connection Interfaces | 1" or 1-1/2" Female NPT Union Inlet / Outlet Paths |
| Downstream Calibration Range | 15 to 90 PSI Adjustment Scale Range (1 to 6 bar) |
| Factory Baseline Setting | 45 PSI Pre-Set Standard Calibration |
| Maximum Upstream Pressure Limit | 360 PSI Static Performance Rating (25 bar) |
| Maximum Operational Temp | 180°F (82°C) Continuous Processing Capacity |
| Internal Filter Mesh Rating | 0.51 mm Stainless Steel Cleanable Strainer Screen |
| Valve Base Casting | Dezincification-Resistant Low-Lead Brass Alloy Casing |
| Certification Standards | Certified to ASSE 1003, CSA B356, and NSF 61 Lead-Free |
The Caleffi 5350 Series Prescal is a commercial-grade, high-performance adjustable pressure reducing valve engineered to control and stabilize high incoming pressures from public water mains. Designed to protect downstream infrastructure from thermal stress, pipe hammering, and appliance degradation, this premium PRV provides whisper-quiet performance across municipal, institutional, and high-volume commercial plumbing networks.
Intelligent Pre-Adjustment & Visual Scale
The 5350 Series features Caleffi's signature top-mounted operating knob integrated with an explicit, double-sided pressure setting indicator scale. This mechanical configuration allows mechanical contractors to pre-set the precise desired downstream pressure target completely prior to installing the unit into the pipe lines. Once fluid pressure enters the valve, the internal balanced seat architecture continuously counters upstream pressure fluctuations, holding the downstream environment completely steady.
Advanced Serviceability Features
- Removable Self-Contained Unit Cartridge: Complete inspection, mesh cleaning, and internal maintenance cycles can be completed in seconds by extracting the complete top-loaded core cartridge without cutting the valve housing from the piping layout.
- Dezincification-Resistant low-lead Construction: Cast from a specialized robust brass compound specifically formulated to limit scaling, maximize structural longevity, and handle hard or highly aggressive hot water loops flawlessly.
- Contoured Internal Control Diaphragm: Built with a specialized custom-shaped rubber profile that maximizes regulation accuracy while dampening vibration and resisting severe pressure surges.
Looking for exact pressure drop curves or localized union dimensional metrics? Click here to request the official factory submittal manuals from our engineering desk.
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