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Description
AVG PTR25-1000-LF 25mm 1000kPa Commercial PTR Pressure Temperature Relief ValveOverview Australian Valve Group (AVG) PTR25 1000 LF 25mm (1") 1000kPa 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) PTR25-1000-LF 25mm (1") 1000kPa 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: PTR25-1000-LF
- Watermark License Number: 2639
- Expansion Rating: 132kW
- Pressure Rating: 1000 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-PTR25-1000-LF
Package Contents
- AVG PTR25-1000-LF kPa PTR Valve 25mm (1") 1000kPa
- Package Weight: 900g
Shipping Notes
- Free Standard Shipping on $100+ Orders 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]
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4.2 ★★★★★
Based on 1674 reviews
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Product Reviews
★★★★★ 5
Great product and value for the money
Pattern Name: Half Ears, Size: 4 Pound (Pack of 1)
Dog loves these. I only feed her natural food and treats. These are very healthy. She's a strong healthy 2 year old puppy. Will be buying again soon. It is a great product for the money. They are chewed up in minutes because she loves them. They do have a bit of an odor but it's not overbearing.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
A great natural treat option, my dog approves
Pattern Name: Full Ears, Size: 8 Count, Pattern Name: Full Ears, Size: 8 Count
Ingredients: Natural pig ears 👍, they smell smoky (my dog loves it, I don’t mind it), most of the time they are a decent size. My dog is half American bully and a heavy chewer so these are a great option for him. The quality is always good, and the bags I get are always fresh. These are a good treat for him when I have to sneak out for a bit or when I am leaving for work in the morning. I have purchased these several times. I also appreciate the eco friendly bag :)
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Reviewed in the United States on February 23, 2026
★★★★★ 4
Dog Treats
Pattern Name: Full Ears, Size: 8 Count
The pit bull and shiba inu love them.
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Reviewed in the United States on March 4, 2026
★★★★★ 5
Great Natural Chew Dogs Love, but Can Be a Bit Messy
Pattern Name: Half Ears, Size: 25 Count (Pack of 1)
These pig ears are a big hit with dogs and keep them busy for a good while. They’re made from a single ingredient, which is a nice plus if you’re looking for something more natural.
They help with chewing and can support dental health by reducing plaque while your dog works on them.
That said, they can be a little greasy and have a smell, which is pretty normal for pig ears. Also, they may not last as long for heavy chewers.
Overall, a tasty and natural treat most dogs will love, just expect a little mess.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Large and fresh
Pattern Name: Full Ears, Size: 25 Count (Pack of 1), Pattern Name: Full Ears, Size: 25 Count (Pack of 1)
These are the next best thing from Costco’s pig ears that aren’t always around. Of course these are twice as much from Costco but mine doesn’t have them in stock right now. These ears are great! They are whole ears that are not stale or old. The bag says it’s bio-based and that it’s made out of sugar cane. My pit bull and Dogo recommend these!
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Reviewed in the United States on April 30, 2026