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Description
AVG PTR25-700-LF 25mm 700kPa Commercial PTR Pressure Temperature Relief ValveOverview Australian Valve Group (AVG) PTR25 700 LF 25mm (1") 700kPa PTR Pressure and Temperature Relief Valve (also known as TPR valve) is Australian Watermark approved and intended for commercial hot water service applications, with a high kilowatt rating of 132kW. Pressure and temperature relief valves, known PTR valves are critical mechanical safety devices for all hot water services. The temperature sensing probe monitors the hot water service's
Overview
Australian Valve Group (AVG) PTR25-700-LF 25mm (1") 700kPa PTR Pressure and Temperature Relief Valve (also known as TPR valve) is Australian Watermark approved and intended for commercial hot water service applications, with a high kilowatt rating of 132kW.
Pressure and temperature relief valves, known PTR valves are critical mechanical safety devices for all hot water services. The temperature sensing probe monitors the hot water service's temperatures. AVG PTR valve temperature probe is covered in a Teflon wrap to prevent any calcification build up overtime and to ensure long term accuracy. Inside the AVG PTR valve body, there is a piston mechanism that opens according to the pressure inside the water tank.
During the operation of the hot water services, the volume of the water will expand during heating cycles, as cold water heats up. This increased pressure can be dangerous if not regulated. The PTR valve regulates the pressure slowly dripping the water out of the tank in a controlled manner, usually via a discharge pipe into a drain or ground. Therefore, when the slow dripping is observed, it is just a perfectly normal PTR valve operation.
When there is a malfunction with the heating component or the thermostat in a hot water service, an uncontrolled heating can be extremely dangerous and explosions can occur catastrophically. PTR valve can detect this when the temperature and pressure exceed 99 deg or its preset pressure ratings. In this case, PTR valve will fully open and dump hundreds of liters of water to relieve the water heater tanks. The Kilowatt rating of the PTR valve refers to the rate that the PTR valve can dissipate this energy and this is regulated by Watermark and plumbing codes in Australia.
When a high kilowatt PTR valve rating is required in a commercial installation, a smaller sized 15mm or 20mm PTR valve must not be used as a cost cutting method for safety reasons.
Technical Details
- Brand: Australian Valve Group (AVG)
- Model: PTR25-700-LF
- Watermark License Number: 2639
- Expansion Rating: 132kW
- Pressure Rating: 700 kPa
- Temperature Rating: 99°C
- Thread Size: 1" BSP (25mm) Male MI thread and female FI thread
- Thread Size Physical Measurements: 33.249mm external male and internal female thread diameter (refer to the BSP sizing chart in the photo gallery)
- Insulation Jacket Included
- Material: DR Brass Body; Stainless Steel Pressure Spring; Copper/Stainless Steel Element; Silicon Seals.
- Intended Use: For commercial hot water service applications where high Kilowatt rating is required for the PTR valves.
- SKU: AVG-PTR25-700-LF
Package Contents
- AVG PTR25-700-LF PTR Valve 25mm (1") 700kPa
- Package Weight: 900g
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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- Delivery to the USA:
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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
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★★★★★ 5
I only trust Q-Tip brand!! Great product. Never had luck with generic swabs.
I only trust Q-Tip brand!! This is a consistently great product. I've never had good luck with generic swabs, they either bend, don't have enough cotton on the end, or fray as I use them. These are soft tips, yet the stick is firm enough not to bend. I'll always go with Q-Tips and this 500 pack is a great value.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Quality
Soft and wo3k well very absorbent great value cotton is high and very versatility
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Reviewed in the United States on May 30, 2026
★★★★★ 4
Soft, Effective, and Great for Everyday Use
I’ve been using these cotton pads for a few weeks and overall I’m very pleased with them. The softness is one of the first things I noticed—they feel gentle on my skin and don’t cause irritation, even around the eye area.
They work well for makeup removal and hold cleanser or micellar water without falling apart. The absorbency is good, though they do soak up a little more product than I would prefer. The cotton content feels high quality, and the pads maintain their shape during use.
Another thing I appreciated is that they leave very little residue behind compared to some cheaper alternatives that shed fibers all over your face. For the price, I think they offer solid value for money, especially considering the quality and comfort.
The only reason I’m giving 4 instead of 5 stars is that I wish they were slightly less absorbent so less product would be wasted. Other than that, they’re a reliable addition to my skincare routine and I would purchase them again.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Value for your money
Qtips are better than other brands. Tried them all. The stick doesn't break. Good cotton. Cleaning performance grand!
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Reviewed in the United States on April 5, 2026
★★★★★ 5
The perfect toothbrush
Color: Pink
I finally found my perfect manual toothbrush. This after having used sonic are toothbrushes for many years now. This makes my teeth feels so clean afterward. The handle is a great length. It’s easy to hold and get into those spaces in the back of your mouth. The brushes are super soft and easy on the gums. The brushhead is just the right size. I feel this is a good price for a quality product. Not only that but it looks nice too!! I will be coming back for more.
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Reviewed in the United States on May 11, 2025