Overview

CALEFFI 521312 standard tempering valve has BSP 15mm 1/2" male compression threads at all three ends. Australian Watermark Approved and made in Italy. Caleffi identifies standard tempering valves with a grey cap. The Caleffi tempering valve is compatible and direct swap for most mainstream tempering valve brands such as AVG, AW, Reliance, Tomson and Nefa with same functions, fitment and similar physical size. 

The CALEFFI 521312 tempering valve can automatically mix the cold and hot water inputs and outputs a steady 50 deg hot water after mixing. The tempering valve is required in Australia by law in the plumbing rules as it is a safety device. Without mixing, the hot water straight from the hot water services can exceed 70 deg and can cause severe instant burns when in contact with skin. 50 deg feels hot, yet without the dangers of burning. When required, the output temperature of the CALEFFI 521312 tempering valve can be adjusted between 35-50 deg.

Technical Details

• Brand: Caleffi
• Model: Grey Cap Standard, 521312
• Thread Size: 1/2" (15mm) BSP Male Compression Thread (15C x 15C x 15C) - Olives/cone nuts not supplied
• Physical Thread Measurement: 20.995mm external thread diameter (Refer to the BSP sizing chart in the photo gallery) 
• Material: DR Brass Body
• Maximum Hot Water Supply Temperature: 85 deg
• Adjustable Outlet Temperature: 35-50 deg
• Set Temperature: 50 deg Standard (Must be commissioned on site by installer)
• Accuracy of Outlet Temperature: +3 deg (Tested as per AS4032.2)
• Minimum Temperature Differential: 10 deg
• Maximum Working Pressure: 1400Kpa (Static) and 500Kpa (Dynamic)
• Maximum Unbalanced dynamic supply: 6:1
  
• Minimum Flow Rate: 4L/Min
• Features: High temperature resistance, tamper-proof adjustment, integrated strainers and check valves, insulation jacket included
• Intended Use: Solar Hot Water Systems, Instantaneous Heaters, Heat Pumps, Ring Main Circulation, Standard Hot Water Heaters
• SKU: 521312