AW PLV15C-500LF 15mm 500kPa Male Compression Pressure Limiting Valve
SKU: 32502747712

AW PLV15C-500LF 15mm 500kPa Male Compression Pressure Limiting Valve

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Description

AW PLV15C-500LF 15mm 500kPa Male Compression Pressure Limiting ValveOverview The AW PLV15C 500 15mm (1 2") 500kPa male compression 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 AW PLV pressure limiting valve features the same threads, fitments and similar physical

Overview

The AW PLV15C-500 15mm (1/2") 500kPa male compression 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 AW PLV pressure limiting valve features the same threads, fitments and similar physical sizes with many other valve manufacturers such as Reliance, AVG, Tomson, Nefa and Reflex. This makes the AW PLV pressure limiting valve a perfect direct replacement to an existing valve with no plumbing pipe modifications required. When the compression nuts and the copper olives are removed, this PLV pressure limiting valve can be used as male threaded valves.

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. 

The compression nuts at the ends of the PLV pressure limiting valve are used to connect to the Australian standard 15mm 1/2"sized copper pipes, which are most common in the residential plumbing. The olives inside bite into the copper pipes to form a water tight seal when the cone nuts are tightened and no plumbing tapes should be used for compression type connections to maximize the biting force. 

When the compression end nuts and olives are removed, the the male threads are exposed underneath. The PLV pressure limiting valve can be used as a threaded valve to screw into fittings and other valves. During all threaded connections, plumbing tapes must be used between the male and female threads. 


Technical Detail

  • Brand: AW (Austworld)
  • Model: PLV15C-500LF (Current lead free model)
  • 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) compression ends with copper olives; 1/2" BSP (15mm) male thread when the cone nuts removed
  • Thread Size Physical Measurement: 20.995mm external male thread diameter (refer to the BSP thread sizing chart in the photo gallery); 12.7mm olive internal diameter to suit standard 15mm 1/2"copper pipe
  • Material: DR Brass
  • Intended Use: Domestic Hot Water Services
  • SKU: AW-PLV15C-500LF

Package Contents

  • AW PLV15C-500LF 15mm (1/2") 350kPa PLV Pressure Limiting Valve
  • Package Weight: 400g

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 32502747712

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4.3 ★★★★★
Based on 1671 reviews
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Michael E
Los Angeles, US
★★★★★ 4
FUN AND DONE!
Color: Orange
First, I looove that I could get this dog toy in my favorite color! The orange color also helps to locate it, if your doggo has rolled it somewhere you don't know. This bowl toy is very durable, safe, and easy to pull open and fill. The only reason I don't give it 5 Stars is because the opening is so big, after it's closed, that unless you have pretty large pieces/treats in it, or jam-pack them in, they easily fall out, when my dog rolls the toy around. What I do, is put a whole Greenie in the bowl and then add treats around it. She's thrilled to have a treat or two spill out, as she rolls the bowl around. But what really keeps her occupied is trying to get to the Greenie. This is where the durability plays such a key role! Our dog is a Pit-Terrier and an extremely aggressive chewer, but the fold in the bowl is so strong that even her attempts to chew through it or claw it out don't work. That said, I would still supervise your dog's play with this. I know, if she really wanted to, our dog could eventually chew through the strong material to get to the Greenie, but thank goodness it's too thick and too wedged in to be worth all that time. The awkward shape of the bowl also makes it hard for her to grip it in her mouth foe chewing. For a dog's quick fun, amusement, and reward, this is a winner!!
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Reviewed in the United States on July 4, 2025
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 5
After two years pups still love this
Color: Blue Lil Snoop
My pups really love this ball and they spend a long time trying to get kibbles or freeze dried chicken. It’s been 2 years since purchase and it’s still in good shape. I highly recommend.
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Reviewed in the United States on June 9, 2026
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Great for mental stimulation. Durable for my chewers!
Color: Purple Lil Snoop, Color: Purple Lil Snoop
Love these! Quality material, safe for dogs — I make my dogs home made freezer treats and fill these up with it, and serve. Keeps them busy for hours. It’s also fun for them to roll it around to get regular treats out of. Toy + treats = a very happy pup. This size I got for my puppy. The larger ones I use for my adult dogs. Super cute too, and silent! I have Mini Aussies, so it’s great mental stimulation for them. Tires them out.
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Reviewed in the United States on April 7, 2026
K
Verified Purchase
Kay
Omaha, US
★★★★★ 3
No challenge once they figure it out once, or if they have a long nose
Color: Blue
The first time I used this with my 9 month old Shepard mix, it was great. We used about 1/3 cup of her kibble and added the Nook to make it harder. It kept her working for 20-30 minutes. However, now that she knows how to remove the Nook, and stick her snout into the opening and lick up the kibble, it lasts about 5 minutes, and is no longer a challenge. She still enjoys playing with this, even when it is empty, and hasn't it destroyed it yet, so for that 3 stars.
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Reviewed in the United States on April 5, 2026
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Verified Purchase
rach b
Lake Worth, US
★★★★★ 5
Awesome toy, add peanut butter
Color: Blue, Color: Blue
I love this, and so does my dog! Yes, plain kibble can fall out too easily, so I put a blob of peanut butter in too and that helps it stick better. Bigger treats work great, as well. Its big and slippery enough that she can't rip it apart, which is great. Absolutely recommend, it's cute to see my dog flip and nose this around. I will probably getting the purple one too, as they are quite affordable. A+
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Reviewed in the United States on March 12, 2026

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