SKU: 14607252443

AW PLV15C-350LF 15mm 350kPa Male Compression Pressure Limiting Valve

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Description

AW PLV15C-350LF 15mm 350kPa Male Compression Pressure Limiting ValveOverview The AW PLV15C 350 15mm (1 2") 350kPa 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-350 15mm (1/2") 350kPa 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 350kPa 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-350LF (Current lead free model)
  • Watermark License Number: WMK26608 
  • Pressure Outlet Rating: 350 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-350LF

Package Contents

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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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]
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SKU: 14607252443

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4.4 ★★★★★
Based on 19 reviews
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R
Reviewer
Dallas, US
★★★★★ 4
Well-Designed and Effective
This tongue scraper is high quality and feels well-made. The stainless steel construction is solid and doesn't feel cheap or flimsy. It has good weight to it and seems built to last with regular use. It's easy to use right from the first time. The process is straightforward - you just hold the handles and gently scrape your tongue from back to front. No complicated technique needed, and it does what it's supposed to do effectively. The two handles are really well designed, which makes it easy to control. Having a handle on each side gives you a comfortable grip and better leverage than single-handle scrapers. The dual-handle design lets you apply even pressure and maneuver it smoothly without awkward angles or slipping. This works for both adults and kids with no issues. My teenager uses it without problems, and the ergonomic design fits different hand sizes comfortably. It's versatile enough for the whole family. One thing I'm uncertain about is the rust-resistance longevity. It says it's rust-proof, but only time will tell how it holds up with daily use and exposure to water. So far it looks fine with no signs of rust, but I'll have to see if that continues months down the line. Another good thing is the edges are not sharp and you won't cut your tongue even if you apply some extra pressure. The compact size makes it portable. I can easily pack it for travel or keep it in my bag for freshening up during the day. It doesn't take up much space. For the price, this is recommended. You're getting a functional, well-designed tool that improves oral hygiene and gives you value for money. The dual-handle feature alone makes it worth it compared to basic scrapers. It's a simple addition to your routine that makes a noticeable difference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
K
Kevin R
Cuba, US
★★★★★ 5
Versatile Product
This tongue cleaner is made from high-quality metal and is easy to clean. Overall, it feels solid and hefty and is extremely comfortable to use. As such, I highly recommend this item.
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Reviewed in the United States on March 10, 2026
R
Ren
Whiting, US
★★★★★ 5
Effective, Durable, and Great for Fresh Breath
The Zelmin’s Tongue Scraper is a simple yet highly effective tool for improving daily oral hygiene. The dual handle design makes it easy to hold and control, allowing you to reach the entire tongue surface comfortably. It removes buildup quickly and leaves your mouth feeling noticeably cleaner and fresher. The metal is sturdy, rust resistant, and easy to clean after each use. It’s a big improvement over plastic scrapers that bend or lose effectiveness over time. This scraper is especially helpful before meetings, meals, travel, or any moment when fresh breath matters. Pros: Dual handle design offers great control and easy use Durable, rust resistant metal that lasts long term More effective than flimsy plastic scrapers Helps eliminate odor causing buildup for fresher breath Easy to clean and store Cons: Metal edges may feel firm for very sensitive tongues Needs gentle pressure to avoid irritation Larger size may take a moment to adjust to compared to plastic scrapers Overall: This tongue scraper is effective, sturdy, and a great addition to your daily oral care routine. If you want fresher breath and a cleaner mouth with minimal effort, Zelmin’s scraper is an excellent choice.
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Reviewed in the United States on January 27, 2026
P
Pan
Birmingham, US
★★★★★ 4
Good Quality, Just Takes Practice
This tongue scraper seems well made and feels sturdy in the hand. I like the dual handle design because it gives a better grip and makes it easier to control while using it. The material also feels durable and easy to rinse clean after each use, which makes it feel like a nice addition to a basic oral care routine. Since this is new to me, there is definitely a little learning curve. It works fine, but it took me a couple tries to get comfortable with how much pressure to use and the best way to handle it. Once I started getting used to it, it felt easier. I gave it 4 stars because it is good quality and useful, but it does take a little practice at first.
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Reviewed in the United States on March 14, 2026
T
Tabatha Jaimes
Cuba, US
★★★★★ 5
price fair for the value
Simple but effective addition to a daily routine. The stainless steel feels sturdy and much nicer than plastic versions, and the dual handles make it easy to control. It cleans well without feeling harsh and rinses off quickly after use. Compact enough to toss in a toiletry bag too. Good basic hygiene tool that does what it’s supposed to.
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Reviewed in the United States on February 16, 2026

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