Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
AVG PTR25-400-LF 25mm 400kPa Commercial PTR Pressure Temperature Relief ValveOverview Australian Valve Group (AVG) PTR25 400 LF 25mm (1") 400kPa 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) PTR25-400-LF 25mm (1") 400kPa 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: PTR25-400-LF
- Watermark License Number: 2639
- Expansion Rating: 132kW
- Pressure Rating: 400 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-PTR25-400-LF
Package Contents
- AVG PTR25-400-LF PTR Valve 25mm (1") 400kPa
- 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:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.0 ★★★★★
Based on 1274 reviews
Sort
Product Reviews
★★★★★ 5
My fav
Size: 13.52 Fl Oz
My fav micellar water. Feels clean and my skin has been getting more clear after using
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Holy Grail Micellar Water
Size: 13.52 Fl Oz
This is my holy grail micellar water! My skin can be sensitive and reactive at times, and this product has never let me down. It has never irritated my eyes or skin. I use it to double cleanse, although sometimes I use only this micellar water followed by a quick splash of water. It does not leave a film and leaves my skin feeling nourished and happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
★★★★★ 4
but takes quiet a good amount of cotton balls
Size: 6.8 Fl Oz (Pack of 1)
It removes makeup alright, but takes quiet a good amount of cotton balls. Haven't try it on waterproof makeup yet, but it does make make skin feels clean and isn't harsh.
Edit: Tried it for a couple of days, and here's the verdict: It can remove makeup, but you'll need a good amount of it on a cotton pad, and likely you'll use more than one. It feels nice while it is on the face, though it clean best with light makeup, and it takes me a couple of cotton balls to clean eyeliner and mascara. I needed to use moisturizer after it, because it make my skin feels dry. It doesn't take long, and definitely save more time than washing with soap and water, but it's a little bit of a hassle, too. Oh well, at least it's very convenient.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2016
★★★★★ 5
THE Best facial toner period!!!
Size: 6.8 Fl Oz (Pack of 1)
This review is for the 200ml bottle
I am one of those few but very fortunate people that isn't allergic to anything, or sensitive to most soaps, cleansers and toners. Unfortunately now that I'm in my fifties my face isn't as fuss free as it once was and soaps and cleansers that were once okay, are now either too harsh for my skin or dry it out. Worse than that are those products that irritate my eyes, especially if they're meant to be used around that area. What gives with these manufacturers whose products are supposed to cleanse your face, but irritate your eyes? Of course sooner or later you're going to get some in your eyes regardless of how careful you are.
Which brings me to this amazingly excellent cleanser. A more accurate description of this cleanser would a "cleansing toner" as it's not really a face wash i.e. it doesn't soap or foam up like other facial cleansers. As I'm a guy and don't wear any make up I can't vouch for its efficacy in that department. But I can vouch most enthusiastically for its ability to strip your face clean of excess oil and grime picked up during the day without leaving your face feeling dry or tight. I do use it around both my upper and lower eyelids with zero eye irritation at all. It leaves my face feeling clean and refreshed with only the slightest hint of a clean refreshing smell, so it won't interfere with your perfume or cologne.
I use it twice a day as an in between facial cleanser/refresher to eliminate that grimy oily look between my daily showers. Highly recommended for doing an excellent job without irritating or drying out my skin. Try it out yourself as this could be the only skin toner that you'll ever need, and it's reasonably priced too. :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 3, 2011
★★★★★ 5
Girlfriend approved !
Size: 13.52 Fl Oz
Works amazingly well, soothes skin, is super gentle, and removes makeup with ease
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026