SKU: 68985461847

AW Logi PLV20F-500LF 20mm 500kPa Female Pressure Limiting Valve

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Description

AW Logi PLV20F-500LF 20mm 500kPa Female Pressure Limiting ValveOverview The AW Austworld PLV20F 500LF 20mm (3 4") 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 AW PLV pressure limiting valve features the same threads, fitments and similar physical sizes

Overview

The AW Austworld PLV20F-500LF 20mm (3/4") 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 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. 

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: AW
  • Model: PLV20F-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: 3/4" BSP (20mm) female FI thread
  • Thread Size Physical Measurement: 26.441mm internal female thread diameter (refer to the BSP sizing chart in the photo gallery)
  • Material: LF DR Brass
  • Intended Use: Domestic Hot Water Services
  • SKU: AW-PLV20F-500LF

Package Contents

  • AW PLV20F-500LF 20mm (3/4") 500kPa 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.
  • Delivery to the USA:
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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: 68985461847

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Just Another Guy
Boise, US
★★★★★ 5
Works well even through lots of unfastening and refastening.
Size: 3/4 Inch X 90 ft, Number of Items: 1
This stuff is a necessity in my house. We use it for cord organization, keeping French doors and cabinets closed (toddler proofing), even on the garden hoses in the garage during the winter. This is holding up great even after removing dozens of times.
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Reviewed in the United States on January 28, 2025
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bjs
Houston, US
★★★★★ 5
bought for work and home
Size: 1/2 Inch X 90 ft, Number of Items: 1
I have tried several different rolls of velcro. What sets this brand apart is that it is thinner than the others I have used, so when wrapped around cables is not as bulky. It does grip as it should. As mentioned in my headline, I originally purchased this for work, so when I wanted a roll for home, I chose this one.
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Reviewed in the United States on October 21, 2024
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JimE
Massapequa, US
★★★★★ 5
Wow!
Size: 3/4 Inch X 300 ft, Number of Items: 1
Dats allota VELCRO !
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Reviewed in the United States on January 31, 2026
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Gregory L. Brown
San Leandro, US
★★★★★ 5
Cheap tie for cables and hoses
Size: 3/4 Inch X 90 ft, Number of Items: 1
I just cut to length, then use a hole punch or ID punch to make custom wraps for cords and hoses. Pull the wrap through the hole after it goes around one cable, then wrap the coiled cable. Much cheaper than buying ties from the local discount hardware store.
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Reviewed in the United States on November 23, 2024
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Everything else It's OK, but needs a stronger magnet
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★★★★★ 5
Keeps everything in one place
Color: Black Oval, Color: Black Oval
Good size, looks good and helps with organization
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