How does this vent use 3 watts at 24 volts? I cannot find this requirement in the company spec sheet.

Doesn't use any power. It is just a float operated vent valve

dear sir i need the below product description 1-Max working pressure 2-max discharge pressure 3- temperature range 4-Max percentage of glycol

1-Max working pressure 10 Bar 2-max discharge pressure 5 Bar 3- temperature range -30–180°C 4-Max percentage of glycol 50%

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Caleffi 250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection

Caleffi 250041A Solar Systems Automatic Air Vent, 1/2-Inch NPT Connection

Product ID: 16824321

Details

Brand
Caleffi
Color
Silver
Connector Type
NPT
Exterior Finish
Brass
Item Weight
11.2 ounces
Item dimensions L x W x H
3 x 3 x 7

🔥High-temp solar system ready

🔧Standard 1/2-inch NPT connection

⚙️Precision brass machining

577 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Poland.

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Description

🔥 Keep your solar system running flawlessly — vent the air, not your energy!

BUILT TO ENDURE - Crafted from durable brass to withstand the high temperatures of solar thermal circuits without compromise.
USER FRIENDLY SETUP - Includes clear, straightforward instructions so you can upgrade your system hassle-free and fast.
SEAMLESS INTEGRATION - Standard 1/2-inch NPT male connection for quick, secure installation in closed solar heating loops.
EFFORTLESS AIR RELEASE - Automatically vents trapped air during system fill, ensuring peak solar heating efficiency.
TRUSTED ITALIAN ENGINEERING - From Caleffi, a leader in premium heating and plumbing components, guaranteeing reliability and quality.

The Caleffi 250041A Automatic Air Vent is a precision-engineered brass component designed for closed solar heating circuits. Featuring a 1/2-inch NPT male connection, it automatically releases trapped air during system filling, enhancing efficiency and longevity. Trusted for its high-temperature durability and Italian craftsmanship, this vent is a must-have upgrade for any professional-grade solar thermal setup.

Specifications

ASIN	B008V64UKQ
Best Sellers Rank	#621,380 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,040 in Air Tool Fittings
Brand Name	Caleffi
Color	Silver
Connector Type	NPT
Customer Reviews	3.6 3.6 out of 5 stars (8)
Exterior Finish	Brass
Global Trade Identification Number	08016615187458
Item Dimensions	3 x 3 x 7 inches
Item Weight	11.2 ounces
Manufacturer	Caleffi
Manufacturer Part Number	250041A
Material Type	Brass
Model Number	250041A
Number of Packs	1
Number of Pieces	1
Size	0.5 inches
Thread Type	NPT
Unit Count	1 Count

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577 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Poland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Good experience, but the tracking updates could be better.

2 months ago

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