SKU: 5904671624

APO PLV15F-350 15mm 350kPa Female Pressure Limiting Valve

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Description

APO PLV15F-350 15mm 350kPa Female Pressure Limiting ValveOverview The APO PLV15F 350 15mm (1 2") 350kPa PLV pressure limiting valve is commonly used to regulate the supply cold water pressure to hot water heaters on caravans, trailers and tiny homes, when used with an external ball valve or check valve. This 350kPa rating APO PLV pressure limiting valve is equally popular when used as a pressure limiting device in many small appliances such as coffee machines, small water fountains, certain washing machines

Overview

The APO PLV15F-350 15mm (1/2") 350kPa PLV pressure limiting valve is commonly used to regulate the supply cold water pressure to hot water heaters on caravans, trailers and tiny homes, when used with an external ball valve or check valve. This 350kPa rating APO PLV pressure limiting valve is equally popular when used as a pressure limiting device in many small appliances such as coffee machines, small water fountains, certain washing machines and dish washers. 

The PLV models with inbuilt check valves are offered also in the All Plumbing Online store under the Caravan RV category.

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 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 unique challenge for caravans, as the outlet pressure can drop below 350kPa when at a caravan park with a low mains supply pressure. This a very wide spread complaint across the internet and the PLV pressure limiting valve is actually not faulty. The solution is to use a pressure reducing valve instead the pressure limiting valve, because the pressure reducing valve outlet pressure is adjustable on the spot to suit different inlet pressures as required. Check out my "Caravan Plumbing" product categories and my website Blogs for more details.

An external check valve must be used if this plain PLV pressure limiting valve is used in a caravan application, as the check valve prevents the back flow from the caravan water heaters when unplugged from the mains supply. Without the check valve, the water heater can lose all its water and the heating element can burn out in a dry condition. If a caravan specific pressure limiting valve with an inbuilt check valve is required, this product is listed under the "Caravan Plumbing" category. This is a very common error by many customers, as both valves look very similar in appearances and both are called pressure limiting valves with the same 350kPa ratings. 


Technical Details

  • Brand: APO
  • Model: PLV15F-350
  • 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) 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: caravan/trailer/tiny home water heaters; small appliances- coffee machines/dish washers/washing machines/water fountains
  • SKU: APO-PLV15F-350

Package Contents

  • APO PLV15F-350 15mm (1/2") 350kPa PLV Pressure Limiting Valve
  • Package Weight: 400g

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Exchange/Return Notes
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SKU: 5904671624

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Courtney
Phoenix, US
★★★★★ 4
Still holding up to my super-chewer!
Color: Cyan NylonFish, Color: Cyan NylonFish
It's a very good product. I would recommend this toy for a heavy chewing dog. My main reasons it's not 5 stars, it's HEAVY and the eyes peeled right off. My pup really likes to throw his toys around, this thing sounds like a cannon ball that's going to go through our floor! He also tries to destroy everything so he was chewing on the eyes and he would have definitely eaten them if I wasn't paying attention. It's not a horrible thing but I obviously don't want him to eat non food things. My dog also likes the squeaker in it, but it's difficult for me to get it to squeak. That's not a big deal though just thought I should mention it. Overall especially for the price, it's a good sturdy product that's cute and it's still holding up. He's chewed parts of the softer areas off a bit, but the rest is very hard so he hasn't made much of a dent. It's also about as big as his head, so he's pretty happy with it!
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Reviewed in the United States on January 18, 2025
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Patrick
Massapequa, US
★★★★★ 5
Worth it if your dog destroys plush toys & likes to chew
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My dog is a very big chewer and destroyer of toys. This toy is perfect for her. It is durable and keeps her engaged chewing for a while. I have a 55lb dog, considered a large dog, and it’s a great size for her. She’s unable to break it apart. The ends do tend to get a little sharp after extended use
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Reviewed in the United States on February 14, 2026
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long islander
Alexandria, US
★★★★★ 5
My Boston loves this fish toy
Color: Cyan NylonFish
Very durable. It takes a couple of months of intense chewing to make holes in this toy. My Boston has incredible mouth strength so he destroys most toys in minutes unless they are rocks. I have replaced this fish 2 times in the last year. I keep an eye on the wear and replace it when he makes a hole in it. Worthwhile purchase but monitor the dogs chewing.
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Reviewed in the United States on April 23, 2026
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Jes
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★★★★★ 5
Great sturdy toy
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Great toy. 1 yr old puppy LOVES it! However, not good for TILE FLOORS. It's so strong and sturdy but bangs all over the tile! Enough to crack tiles 😬
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Elizabeth Alfaro
Lowell, US
★★★★★ 4
American Bully Trial - Honest Review
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I have never gotten a toy that lasted more than an hour when it comes to my baby girl. She is an aggressive chewer and loves anything that squeaks. This definitely helped to keep her entertained and use her teeth. I can confidently say that this toy may last a long time but she has already ripped a piece from it. I didn’t expect anything less since she always knows how to test new toys lol. I would definitely recommend though and will be getting more for her once this one is gone. Thank you!
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