SKU: 96596832944

APO PLV15F-500 15mm 500kPa Female Pressure Limiting Valve

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Description

APO PLV15F-500 15mm 500kPa Female Pressure Limiting ValveOverview The APO PLV15F 500 15mm (1 2") 500kPa PLV pressure limiting valve is commonly used to regulate the supply cold water pressure to 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 APO PLV pressure limiting valve features the same threads, fitments and similar physical sizes with many

Overview

The APO PLV15F-500 15mm (1/2") 500kPa PLV pressure limiting valve is commonly used to regulate the supply cold water pressure to 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 APO PLV pressure limiting valve features the same threads, fitments and similar physical sizes with many other valve manufacturers such as Reliance, AVG, Tomson, AW, Nefa and Reflex. This makes the APO PLV pressure limiting valve a perfect direct replacement to an existing valve with no plumbing pipe modifications required. 

The PLV pressure limiting valves usually come in 350, 500 and 600kPa ratings under Australian Watermark standard regulations. Each pressure specification is used on specific plumbing applications, depending the pressure rating requirement of the appliances. The PLV pressure limiting valve regulates the inlet water pressure by employing a sliding piston design internally and creates a pressure drop as the water passes through the valve. This piston design is directional and therefore there is an arrow on each pressure limiting valve body indicating the water flow orientation.  

Engineer's Notes

When a PLV pressure limiting valve fails, it is usually caused by the corrosion and debris clogging-up inside the valve body, preventing the piston's sliding actions over its usage life spans. In most cases, the water pressure and flow rate can drop significantly causing an unsatisfying user experience. In less common scenarios, the opposite can also happen and the pressure limiting valve may lose its pressure limiting ability, potentially blowing up appliances with over pressures. 

A PLV pressure limiting valve can only limit the dynamic pressure of the passing inlet water. The valve can not regulate a static pressure increase inside a water heater when the water heats up and expands, where PTR and ECV valves must be used instead for the pressure relief.

The 500kPa is a nominal outlet pressure rating under Australian Watermark Standard testing condition with a set inlet pressure. In real world situations, the actual mains supply water pressure can fluctuate and vary greatly from locations to locations. This presents a challenge for many hot water heater installations, especially when the street's mains pressure is too high. In this scenario, the PLV pressure limiting valve may fail to limit the inlet pressure below the hot water tank's pressure rating requirement. The PTR and ECV valves of the hot water service can leak excessively or even in a continuous stream as consequences. In such situations, pressure reducing valves can be used in the places of the pressure limiting valves to address this problem. 

Technical Detail

  • Brand: APO
  • Model: PLV15F-500
  • Watermark License Number: WMK26608 
  • Pressure Outlet Rating: 500 kPa
  • Temperature Rating: 80°C
  • Max Inlet Pressure: 2000kPa
  • Flow Rate: 50L/min at max allowable inlet pressure of 2000kPa 
  • Thread Size: 1/2" BSP (15mm) female FI thread
  • Thread Size Physical Measurement: 20.995mm internal female thread diameter (refer to the BSP sizing chart in the photo gallery)
  • Material: DR Brass
  • Intended Use: Domestic Hot Water Services
  • SKU: APO-PLV15F-500

Package Contents

  • APO PLV15F-500 15mm (1/2") 500kPa PLV Pressure Limiting Valve
  • Package Weight: 400g

Shipping Notes
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Exchange/Return Notes
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SKU: 96596832944

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4.2 ★★★★★
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Verified Purchase
John Palmer
Birmingham, US
★★★★★ 4
for polar fleece slippers with leather soles, these are quite nice
Size: 8-9, Color: Red/Black Check
I bought these to replace some Mug Lugs slippers last fall after they had started to come apart from barely a year of use (they were knitted) and have been wearing them constantly since then. The polar fleece does easily pill somewhat but get a hard use and are quite comfortable too. I wear these in the house most of the time as my feet do not like to wear shoes all day. They are comfortable, and do seem to hold up well. The only other issue is until I get my office chair mat replaced, these catch and can cause problems and have a little, but not enough to worry too much about. They supposedly have an anti slip design on the bottom, but if flour falls on the kitchen floor, not so slip resistant. I chose these as one, they are red, but also plaid and like them a lot. Hopefully, I get more than a years use out of them. I have had several polar fleece sock type slippers similar to these in the past, and the last polar fleece pair in Dk Blue and from Land End finally after several years of constant use, the stitching began to come apart and the sole was separating from the body of the slipper on one slipper. They do keep the feet warm, with or without socks and can, at times, get my feet too warm but I enjoy them quite a bit.
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Reviewed in the United States on May 3, 2025
A
Verified Purchase
avalancheryder
Port Orchard, US
★★★★★ 5
Absolute game changer for chronically dry feet/cracked heels
Size: S (up to size 7)-Beige
I had recently bought a pair of silicone heel/ankle wraps to fill out my boot a little since I noticed my heels were lifting when I was skating. I tested them out around the house and noticed they left my heels softer while the rest of my sockless feet got quite dry. So I got these full foot silicone socks to see the effect of having my whole foot covered. I slather the entirety of my feet with Dr. Scholl's Severe Cracked Heel Restoring Balm (love how convenient it is to apply it to my feet with the solid stick form) and then slip them into these silicone socks. After just a couple hours, when I pull out my feet they're (a teeny bit sweaty at first), but then overall soft and smooth and have absorbed the balm fully leaving barely any residue in the silicone sock. I find these silicone socks generally comfortable; I wear them in the evenings while relaxing on the couch, take them off after a couple hours and let my feet breathe a bit, and then reapply my balm and socks and wear them to bed. If I wake up in the middle of the night, which I almost always do (not because of the socks), I'll take the socks off and allow my feet to breathe again. I wear a woman's size 6 shoe and the small size is pretty comfortable. However, I made the mistake of wearing them while being on my feet for a couple hours straight during household chores -- they must've somehow cut off my circulation a bit with the standing, so I wouldn't recommend wearing these silicone socks while being active. And since they're not exactly my foot size, they slide around sometimes and will start to feel tight at my big toe. But if that happens, I just tug on the toe area of the sock to give my big toe more wiggle room and problem solved. Prior to wearing these socks, I was soaking and doing heavy duty exfoliation of my feet every week. These socks seem like they'll work to help me extend the time between soakings and exfoliations. The 5 pack is a great value. So far none have torn, so they seem rather durable. Not sure what I could even do to tear a hole in these.
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Reviewed in the United States on January 16, 2026
B
Verified Purchase
Beverly Durham
Pawtucket, US
★★★★★ 5
Works wonders
Size: M (up to size 9)-Beige
Works wonders for dry feet, like really dry, hard feet.
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Reviewed in the United States on February 23, 2026
T
Verified Purchase
Therapy by the Sea
Alexandria, US
★★★★★ 4
EXCELLENT FEET MOISTURE PROTECTION
Size: S (up to size 7)-Beige, Size: S (up to size 7)-Beige
Why did you pick this product vs others?: I have burns on my feet and needed something that I could put burn creme on and still walk around in with. I tried other silicone footsie but they would teae really easily. So far these are doing really well for this purpose. They are holding their shape too. The only caution I have is the same with all silicone footsies: They can be slippery on wet floors, so also wear with socks over them. The biggest issues is when they say a size they mean it. The silicone used in these have little give in them, so they won't stretch out and loose their shape. That can be a good thing, or not so good, depending on how well they fit your feet and what your intent is with wearing these. The other issue is if they fit snug around those toes, that tends to be where the first tear in the material will happen. Because of how these are made, the tear is actually more like cracking in the material and once it occurs you won't be able to get much use out of the sock after that. If you are planning to wear them around the house or for long term use, I suggest going up a size or look for the toeless options.
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Reviewed in the United States on July 5, 2025
S
Verified Purchase
Shawna
Bozeman, US
★★★★★ 3
Silicone socks
Size: M (up to size 9)-Beige
The socks are sized large. The quality of the silicone is good. But they slide around on your feet if you try to walk, making them difficult to use and a bit uncomfortable. Unless you are able to sit for long periods of time the likely will not work well. Recommend looking for a better value.
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Reviewed in the United States on October 27, 2024

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