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Description
CALEFFI 521312 15mm Standard Tempering Mix ValveOverview 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
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
Package Contents
- CALEFFI 521312 Standard 15mm tempering valve
- Package Weight: 560g
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4.2 ★★★★★
Based on 1600 reviews
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Product Reviews
★★★★★ 1
Does not swivel and slow charger
As mentioned in another review, you cannot change the angle of the phone so it faces the other way since it does not swivel. Wish I wish I would have known that before placing it. Also, the charger is REALLY slow. It’s slower than the MagSafe chargers I have in my house. I’m not sure if this is defective. I only used it on my way home from work, and I will be returning it.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Tesla Phone Mount for Magsafe: Tesla Car Phone Holder for Tesla Model 3/Y
Okay so I received this Kaisepoch Tesla MagSafe phone mount, compatible with Model 3/Y, through Vine for review, and this is one of those Tesla accessories that’s all about convenience and clean in-car phone positioning. First impression—it’s a MagSafe-style magnetic phone holder designed specifically for Tesla Model 3 and Model Y interiors, so the idea is that it mounts neatly without cluttering the dash and keeps your phone visible for navigation or quick access. In general, Tesla MagSafe mounts like this are designed around either screen-edge or dash-mounted positioning depending on the generation of the vehicle, with magnetic alignment for one-hand docking and removal.
What I like:
MagSafe magnetic attachment makes it quick to dock and remove the phone
Designed specifically for Tesla Model 3/Y interior fitment
Keeps phone in a visible navigation-friendly position
Cleaner setup compared to bulky universal mounts
One-hand operation is convenient while driving
Things to know: Fit can vary slightly depending on Tesla model year/interior generation; Magnetic strength depends heavily on your MagSafe case quality; Placement matters—some positions may affect screen visibility depending on preference; Like most Tesla mounts, long-term stability can depend on heat and surface conditions.
Overall, this is a clean, simple MagSafe Tesla mount option that focuses on easy phone access and minimal clutter. If you want a straightforward mount for navigation and quick phone docking without overcomplicating the setup, this is a solid pick.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Tesla Phone Mount (Model 3/Y/Juniper/Cybertruck)
This Tesla-specific phone mount is one of the cleanest and most functional accessories I’ve added to my vehicle. It installs neatly behind the touchscreen using the included positioning frame, so it doesn’t block any vents, airbags, or the driver’s view. Once mounted, it stays rock-solid and looks like it belongs there from the factory.
The magnetic hold is impressively strong — 20 ultra-powerful magnets keep even a large phone locked in place through rough roads, sharp turns, and highway speeds with zero slipping. The 360° adjustable telescopic arm is smooth and stays exactly where you set it, whether in portrait for navigation or landscape for videos. When not in use, it folds away discreetly behind the screen.
After two weeks of daily driving (including some bumpy back roads), the mount shows no signs of loosening, sagging, or vibration. The 3M adhesive has held perfectly through temperature swings, and the aluminum arm feels premium and sturdy. It works flawlessly with MagSafe phones and includes rings for non-MagSafe devices.
Overall, this is a well-engineered solution that combines strong performance, clean aesthetics, and real usability. If you want a phone mount that feels integrated with your Tesla instead of an afterthought, this is an excellent choice. Very happy with the quality and design.
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Reviewed in the United States on May 18, 2026
★★★★★ 4
Looks good, moves smoothly.
This is a pretty good holder. The magnets were strong and I didn't notice my phone sliding around. It also includes additional adhesive if you want to move it later on. It rotates and folds so its out of sight if unused. I would have preferred some other form of installation, like suction, but understand that doesnt always work right. If you use your phone often in the Tesla, this is a good option. I just think there are better options out there, but thats my preference. The material is nice and sturdy, nice metallic look, and bends/rotates smoothly.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Sleek and looks so good in the Tesla but doesn’t have a suction option
This is a nice phone mount for the Tesla with some pros and cons.
Pros: It has a very strong magnetic connection so there’s no worry of your phone randomly hitting the floorboard. It’s sleek and minimalist looking and blends really nicely with the Tesla’s interior. Note that this is not a charger, just a mount. It seems to be well made of quality materials. This mount is also easily installed.
Cons: the only way to mount this is with the included M3 adhesive, this is not a suction mount, so when you go to move it, you may have to deal with residue. This also limits you from being able to switch it from one side of the screen to the other (driver or passenger), if you so choose to do so. The other con is to move it from portrait mode to landscape mode you have to reach back behind the screen to loosen the mount, adjust it, then retighten. Personally it just feels like too many steps to change the viewing angle.
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Reviewed in the United States on May 23, 2026