Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
AVG PTR25-850-LF 25mm 850kPa Commercial PTR Pressure Temperature Relief ValveOverview Australian Valve Group (AVG) PTR25 850 LF 25mm (1") 850kPa 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) PTR25-850-LF 25mm (1") 850kPa 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: PTR25-850-LF
- Watermark License Number: 2639
- Expansion Rating: 132kW
- Pressure Rating: 850 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-PTR25-850-LF
Package Contents
- AVG PTR25-850-LF kPa PTR Valve 25mm (1") 850kPa
- 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 2090 reviews
Sort
Product Reviews
★★★★★ 5
La comodidad de la bolsa
Color: Black
Buen tamaño y buen material y economico
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Great value!
Color: Black
Ideal size and appearance. Used for an overnight trip and was very spacious for few outfits.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
Love it
Color: Navy Blue, Color: Navy Blue
This is my favorite work tote. I love the navy color and I like the fact that it has a strap in the back so I can attach it onto a rolling cart if I want to. The material is waterproof. I like all the pockets on the side for a small umbrella or water bottle. I like the fact that it also came with a small pouch that can be used as a pencil pouch or makeup bag.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
★★★★★ 5
loved it more than I thought I would
Color: Black
excellent work tote. quality seems great and lots of organization
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
★★★★★ 1
These items were inside the bag
Color: Black, Color: Black
Received package in plastic bag and appeared new initially new . When my daughter opened the bag there was a used Hershey wrapper and used burts beeze lip balm inside .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
recommand products
Maxiforce Overhaul Kit, Standard, Rod Bearing OD 63.48MM, Turbo, 3054C/E for Caterpillar OK563-30/20
642.00
Maxiforce Kit, Piston & Ring, 0.50MM, C6.6 for Caterpillar 380-2062
130.99
Maxiforce Kit, Piston & Ring, Standard, 3044T for Caterpillar 234-4814
133.99
Maxiforce Kit, Piston & Rings, .50MM, C2.2 Crdi for Caterpillar 469-8907B
192.99
Maxiforce Kit, Piston & Ring, Standard, 3054C/E, Turbo for Caterpillar 225-5437
140.99