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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.
- Except Preorder products are shipped in 48 hours.
- 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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Product Reviews
★★★★★ 5
Lightweight paper, but excellent print surface!
Size: 11 In X 14 In
This paper is lightweight but the Matte surface is great - it provides an excellent print surface. My framed photos and prints look great when printed on this paper!
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Reviewed in the United States on December 17, 2018
★★★★★ 5
Excellent Value
Size: 11 In X 14 In
I use this paper for printing custom artwork. It is fantastic quality and my customers are continually impressed with the professional look when they receive their prints.
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Reviewed in the United States on January 9, 2014
★★★★★ 3
Not so much.
Size: 11 In X 14 In
I bought this paper for a photo I took and I needed 4 copies printed. I didn’t want to spend a lot of money so I bought this paper as it was fairly inexpensive. You get what you pay for. A professional photographer friend of mine printed my photos as he has a high end Epson printer. He mentioned to me when handing the prints to me that the quality of the print was average with this paper. The texture and feel of this paper is like a sheet of ordinary typing paper. I guess one could use this paper to print test sheets. I will not buy again.
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Reviewed in the United States on October 17, 2022
★★★★★ 5
WOW — Stunning Print Quality
Size: 8.5"X14", Size: 8.5"X14"
WOW WOW WOW. The print quality on this photo paper is absolutely amazing. The colors come out vibrant, sharp, and so professional-looking. I’ve tried quite a few photo papers, and this one is easily one of my favorites.
The paper itself feels high quality and sturdy, and the glossy finish really makes photos pop without looking cheap or overly shiny. It feeds smoothly through my printer and dries quickly with no smudging. Every print comes out crisp and clean.
If you’re looking for professional-level photo paper with incredible color payoff, this is it. Such a great value for the quality you get—I’ll definitely be repurchasing.
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Reviewed in the United States on January 23, 2026
★★★★★ 5
Great value glossy photo paper
Size: 5"X7"
This photo paper works really well with my inkjet printer using dye ink. The colors come out bright and sharp, and it dries quickly without smudging or smearing. The glossy finish gives the photos a clean, professional look, and the 180gsm weight makes it feel sturdy without jamming or being too thick for my printer.
So far, I’ve used it for family photos, thank you cards, and a few school projects. The results have been consistent, and I like that there’s no watermark on the back so I can write notes or dates if needed. The pack comes with 100 sheets, which makes it a great value for how well it performs. If you need affordable, good quality glossy paper for home printing, this is a dependable choice that makes projects look polished.
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Reviewed in the United States on September 27, 2025
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