CALEFFI Solar Hot Water Anti Frost Protection Valve 15mm 1/2" Female Thread
SKU: 16306712020

CALEFFI Solar Hot Water Anti Frost Protection Valve 15mm 1/2" Female Thread

$144.90 $161.00
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Description

CALEFFI Solar Hot Water Anti Frost Protection Valve 15mm 1/2" Female ThreadOverview CALEFFI 15mm (1 2inch) 603040 solar frost protection anti freeze valve for solar thermal systems to protect hot water storage. Prevents ice built up in domestic water circuits avoiding possible damage to water storages and pipes in hydraulic, solar and irrigation systems. Made in Italy. Australian Watermark approved. Technical Details Manufacturer: CALEFFI, Made in Italy Model: 603040 Specifications: Opening Temperature: 3C Closing

Overview

CALEFFI 15mm (1/2inch) 603040 solar frost protection anti-freeze valve for solar thermal systems to protect hot water storage. Prevents ice built-up in domestic water circuits avoiding possible damage to water storages and pipes in hydraulic, solar and irrigation systems. Made in Italy. Australian Watermark approved. 

Technical Details

Manufacturer: CALEFFI, Made in Italy
Model: 603040
Specifications:

Opening Temperature: 3°C
Closing Temperature: 4°C
Ambient Temperature Range: -30°C to 90°C 
Accuracy: ±1°C
Maximum Working Pressure: 1000 kPa

Thread Size: 1/2" BSP (15mm) Female thread (15FI)
Material: 

  • Body: DZR Alloy or EN 12165 CW602N
  • Obturator Stem: brass EN 12164 CW614N
  • Seat: Stainless Steel
  • Spring: Stainless Steel
  • Seal: EPDM 
  • Strainers: Stainless Steel 

Intended Use: Solar water heaters in frost prone area
Package Weight: 135g


Package Contents

  • CALEFFI 603040 Frost Protection Valve

Warranty

1 year replacement (parts only) warranty from the order date. Proof of purchase is required. 


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16306712020

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Swathi
Alexandria, US
★★★★★ 4
Quality is good
Color: Black, Size: 6 Panel
Good one. Some support need for it to stand
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Reviewed in the United States on January 28, 2026
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Shabree
Grantham, US
★★★★★ 5
Very nice for the price
Color: Natural, Size: 8 Panel
I use this to hide my cat area in our garage. Makes it look clean
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Reviewed in the United States on March 1, 2026
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NA
Charlottesville, US
★★★★★ 5
Perfect & light weight divider
Color: Charcoal Gray, Size: 8 Panel
I really like this divider. I have it in my bedroom which is also where my "work from home office" is. The divider blocks my bedroom and dresser perfectly. It's very light weight and very easy to move.
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Reviewed in the United States on March 10, 2026
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Becky N.
Charlottesville, US
★★★★★ 5
Room Divider
Color: Beige, Size: 8 Panel
I received my 8 panel folding divider and realized that I probably should have just ordered the 6 panel one. But it is nice and sturdy and was already put together. I am very pleased with the product.
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Reviewed in the United States on December 13, 2025
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Holly
Whiting, US
★★★★★ 5
Great Dividers
Size: 6 Panel-120"W, Color: Beige
Love these!! Many uses. Simple, nice looking, sturdy overall. Well made. Bought to divide the unsightly storage area from the calm rest area in the basement. Also, these worked well for our garage party where the dividers let light and air in, though blocked the view of our party area from the cars driving by.
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Reviewed in the United States on April 14, 2026

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