Caleffi 521510A Mixcal 3-Way Adjustable Thermostatic Mixing Valve with Temp Gauge 3/4 inches Male NPT

Product Description

The Caleffi 521510A MixCal 521 series three-way thermostatic mixing valve is designed for systems producing domestic hot water or in hydronic and radiant heating systems. It maintains a constant desired output temperature of mixed water, compensating for temperature and pressure fluctuations of incoming hot and cold water. This valve is certified to ASSE 1017 and Low Lead Plumbing Law by IAPMO R&T.

• Features a low-lead brass body and fittings for durability and compliance.
• Incorporates internal anti-scale materials to ensure consistent performance.
• Equipped with a locking set point knob to prevent unauthorized adjustments.

Product Highlights

Maintains constant mixed water temperature, compensates for fluctuations, and includes a temperature gauge for monitoring.

Product Information

Standard Information

• Brand: CALEFFI
• Manufacturer Part Number: 521510A

Technical Specifications

• Nominal Size: 3/4 inch
• Connection Method: Threaded
• Connection Type: MNPT x MNPT
• Max Working Pressure: 200 psi
• Setting Temperature Range: 85-150 deg F (30-65 deg C)
• Max Output Temperature: 150 deg F
• Min Output Temperature: 85 deg F
• Type: Adjustable
• Body Material: Low-Lead Brass (<.25% Lead Content)
• Body Pattern: 3-Way
• Certifications: ASSE 1017, CSA B125.3, cUPC listed, NSF/ANSI/CAN 372-2011, ICC-ES certified
• Application: Point of Source
• Lead Free: Yes
• Flow Capacity (Cv): 3
• Max Inlet Temperature: 200 deg F (93 deg C)
• Min Flow for Optimum Performance: 1.3 gpm
• End Style: MNPT
• Inlet to Outlet Length: 5-1/4 inch
• Media: Water/Glycol
• Series: 521
• Softgoods Material: EPDM Seal
• Top to Inlet Center: 2-9/16 inch
• Trim Material: Stainless Steel
• Tolerance: ±3 deg F (±2 deg C)
• Min Flow for Stable Performance: 1.0 GPM (4 l/min)
• Flow Rate Working Range: 1.0-14 gpm
• Exterior Finish: Brass
• Number of Ports: 3
• Maximum Operating Differential Pressure: 75 psi
• Maximum Recommended Differential Pressure: 20 psi
• Temperature Gauge Scale: 30-210 deg F
• Maximum Inlet Pressure Ratio: 2:1
• Minimum Temperature Difference: 27 deg F