SKU: 26193157771

Reflex RPTR15I-1000 15mm 1000kPa PTR Pressure Temperature Relief Valve

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Description

Reflex RPTR15I-1000 15mm 1000kPa PTR Pressure Temperature Relief ValveOverview The Reflex RPTR15I 1000 15mm (1 2") 1000kPa PTR Pressure and Temperature Relief Valve, also known as TPR valve is used to regulate the water pressure inside hot water services, including heat pumps, electric, gas storage and solar water heaters across all mainstream brands in Australia such as Rheem, Vulcan, Rinnal, Dux, Aquamax, Thermann, Apricus and Solahart. The supplied insulation jackets reduce heat loss and improve the hot water

Overview

The Reflex RPTR15I-1000 15mm (1/2") 1000kPa PTR Pressure and Temperature Relief Valve, also known as TPR valve is used to regulate the water pressure inside hot water services, including heat pumps, electric, gas storage and solar water heaters across all mainstream brands in Australia such as Rheem, Vulcan, Rinnal, Dux, Aquamax, Thermann, Apricus and Solahart. The supplied insulation jackets reduce heat loss and improve the hot water services' overall thermal efficiency. 

The Reflex PTR valve features the same threads, fitments and similar physical sizes with many other PTR valve manufacturer brands such as Reliance' HT55, AVG, Tomson and Nefa. This makes the Reflex PTR valve a perfect direct replacement to an existing valve in an old hot water heater. 

The PTR pressure temperature relief valve regulates the pressure caused by water volume expansions during normal heating cycles in a hot water service. The PTR valve relieves this increase in pressure by a controlled water dripping into a drain line typically of 2 to 5 litres per day depending on the hot water usage. 

The PTR pressure temperature relief valve also acts as a mechanical protection device for the hot water services. In rare occasions of a faulty thermostat or heating element, the hot water service can overheat, building a dangerously high pressure and temperature inside. When this pressure or temperature exceeds the PTR valve's rating, it will dump hundreds of litres of water all at once as an emergency pressure relief. Usually a large puddle of water will be observed around the hot water services on the ground during this emergency water dumping. The PTR valve usually has a KW rating, which describes this emergency water dumping ability in terms the heat dissipating power. A larger PTR valve will usually have a larger KW rating and this KW rating is specified by local plumbing rules, especially in large commercial hot water systems.

A functioning PTR valve is a requirement by law in Australia for safety as per explained above. A typical sign for a faulty PTR valve is when there is a large amount of water leakage in a stream, rather than a controlled dripping. The worn out or leaking PTR valve must be replaced immediately. 

Technical Details

  • Brand: Reflex
  • Model: RPTR15I-1000
  • Watermark License Number: WMKA21795
  • Expansion Rating: 10 kW 
  • Pressure Rating: 1000 kPa
  • Temperature Rating: 99°C
  • Thread Size: 1/2" BSP (15mm) Male MI thread and female FI thread
  • Thread Size Physical Measurements: 20.995mm external male and internal female thread diameter (refer to the BSP sizing chart in the photo gallery)
  • Insulation Jackets
  • Material: DR Brass
  • Intended Use: Electric tanks, solar tanks, gas storage tanks and heat pumps
  • SKU: RPTR15I-1000

Package Contents

  • Reflex RPTR15I-1000 15mm 1000kPa PTR Valve
  • Package Weight: 360g
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 26193157771

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Josh G
Dallas, US
★★★★★ 5
Fit Perfect
Size: 2023-26 CRV 2.0L Hybrid
Fit perfectly on my 2023 CRV sport hyrbids. Use an 8mm socket for the engine filter cover.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
D
Verified Purchase
Donna Goodwin
Charlottesville, US
★★★★★ 1
One filter works the other one doesn’t
Size: 2023-26 CRV 2.0L Hybrid
No, it does not work for the new 2025 Honda CRV only the cabin filter works the engine filter slips off and won’t allow you to fully put the cover back on on the new 2025 CRV Honda
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Reviewed in the United States on March 3, 2026
J
Verified Purchase
Jami Regimbal
Cuba, US
★★★★★ 5
Perfect fit, good quality, great price
Size: 2023-26 CRV 2.0L Hybrid
Perfect size & was better quality than factory ones that came with the Honda. Honda’s cost to replace at service bay was close to $200!
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Reviewed in the United States on February 21, 2026
H
Verified Purchase
Henry
Pawtucket, US
★★★★★ 5
Al 100
Color: black, red
Está lo que necesitaba
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Reviewed in the United States on May 21, 2026
T
Verified Purchase
Tw
Port Orchard, US
★★★★★ 5
"WORK GREAT"!
Size: 24.01+18.01, Style: 2 piece
They Fit perfectly, easy to put on my Hyundai Elantra. Their Alot nicer than the old ones my last mechanic put on & work Alot better. Good value for the price i Highly recommend them. I'm a CHRISTAIN & Not paid for my review.
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Reviewed in the United States on February 17, 2026

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