SKU: 41216964699

AW Logi WSP15LF 15mm 1/2" Solar Rated Non Return One Way Check Valve

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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

AW Logi WSP15LF 15mm 1/2" Solar Rated Non Return One Way Check ValveOverview AW WSP15LF Solar Rated Non Return One Way Check Valve is spring loaded and designed to prevent the high temperature backflow from the roof collectors present in solar hot water systems. In order to survive this high temperature working environment, the AW check valves are constructed with lead free DR brass body, silicone seals and high temperature rated full brass internals. During the operation of solar hot water systems in summer, a

Overview

AW WSP15LF Solar Rated Non Return One Way Check Valve is spring loaded and designed to prevent the high-temperature backflow from the roof collectors present in solar hot water systems. In order to survive this high temperature working environment, the AW check valves are constructed with lead free DR brass body, silicone seals and high temperature rated full brass internals.

During the operation of solar hot water systems in summer, a stagnation condition can be created as the storage water tank reaches its maximum top out temperature usually around 60-70 degrees. In such stagnant conditions, the solar pump will stop water circulation and the solar roof collectors can reach 180°C in flat plate panels and 200+°C in evacuated tubes. This super heated water remains in liquid form due to the pressure in the solar hot water system and pushes down back to the water tank creating the backflow. This back flow can cause damages to the water pumps, flow meter and other components if not prevented. A standard check valve that is not solar rated will melt over time with the usual plastic internal components. A swing type check valve would create excessive flow resistance and poor seal. The AW WSP15LF spring loaded solar rated check valve is perfect in such installations, offering minimal pressure drop during water pump operation and long lasting seal even in continuous high temperature environment.

The AW solar check valves can be installed in either vertical or horizontal orientations and is WaterMark Approved for compliance in Australia. The solar rated check valves can be also used in low temperature rating steam applications. 

Technical Details

  • Manufacturer: Austworld (AW)
  • Model: WSP15LF
  • Connection Size: BSP 15mm (1/2") Female thread (15FI x 15FI)
  • Physical Thread Measurement: 20.995mm female internal thread; Refer to the BSP sizing chart in the photo gallery
  • Body Material: Lead Free DR Brass
  • Seal Material: Silicone
  • Valve Type: Non Return Check Valve
  • Maximum Temperature & Pressure: 150°C and 2000kPa
  • Intended Use: Solar Hot Water Systems
  • SKU: WSP15LF

Package Contents

  • WSP15LF Solar Rated Non Return Check Valve
  • Package Weight: 180g
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41216964699

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C. R. Steadman
New York, US
★★★★★ 5
Amazing!
Size: 1 Fl Oz (Pack of 1)
I absolutely love this product. I use it daily in the AM and PM and it's a staple in my skin care routine. Glides on, absorbs quickly, noticeable difference in fine lines, much better (and more affordable) than other name brands I have tried.
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Reviewed in the United States on May 23, 2026
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Fran Coleman
Waukegan, US
★★★★★ 4
Love Good Molecules
Size: 1 Fl Oz (Pack of 1)
I’m learning a lot about peptides for skin and this product was recommended by so many people, in so many different places, that I gave it a try. And I don’t regret it. The price is phenomenal, I love the ingredients, I have sensitive skin with mild rosacea on my cheeks, and it does not aggravate my skin whatsoever. It goes on so smooth and dried so fast. There is absolutely no “film” it does not feel heavy or weird on my face either. Almost feels like water TBH. I’ve been using it twice a day for over a week now and I definitely can feel and see a difference! I thought maybe I was just fooling myself or imagining things but definitely not. My friend told me that my cheek look “less inflamed” and that the lines on my forehead are looking a little “less severe” (not that they were so bad to begin with lol but it definitely speaks volumes about the product) I don’t smell anything so I don’t think there is a fragrance As far as brightening my skin, I can’t honestly tell a difference in that aspect. But overall, it has done something noticeable with my skin redness and sensitivity, it has helped with minor plumping of smaller lines, it adds a nice “bounce” to my skin, nothing major or crazy, but noticeable enough to the naked eye. And this is using it twice a day for over seven days now – in conjunction with a few other products I use, but I am noticing that I am using less product products now. Now I am just down to my eye cream and my cicapair serum for redness/sensitivity & my fave good molecules Yerba Mate eye gel (I used it on my forehead lines too!) And I like the size of the bottle. Especially for the price. It feels very nice and soothing on the skin. I have to be careful that I don’t use too much lol I cannot wait to check out other items from this brand The two items I use are so good, affordable, and impressive. Plus multi use. This one, I put it on my lips as well. The Yerba is great for my forehead lines and I put it on my neck/under chin area too.
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Reviewed in the United States on April 30, 2026
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AV
Phoenix, US
★★★★★ 5
Great to add to your routine without spending big money.
Size: 1 Fl Oz (Pack of 1)
I’ve been using this in my skincare routine for about a month and I love it. It has helped my skin texture and elasticity. It’s also an amazing price. The Good Molecules line is a hidden gem that doesn’t require you to spend an outrageous amount for a serum. Make sure to let it absorb in before you apply the rest of your products, as it takes a minute to dry down. It seems very effective, has brightened my skin, and can be used every night. I’ve had it for about a month and still have half the bottle, so it’s a decent size. My skin was so dry before I started my new routine and I think this serum has helped. The consistency is like a little thicker and will feel a bit tacky after use. I use it after cleansing and before I use my snail mucin serum. Will buy again when I run out.
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Reviewed in the United States on April 30, 2026
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Moony Simpkins Rides Again
Omaha, US
★★★★★ 5
Great quality, great price.
Size: 1 Fl Oz (Pack of 1)
So far so good. This is my 2nd bottle. I mean, it’s not botox. But it’ll definitely plump and hydrate. I have dry, weird sensitive combination skin (and I’m 39), but this works and I love it as a first step in my rituals. (I also love their caffeine eye cream!)
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Reviewed in the United States on April 26, 2026
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Port Orchard, US
★★★★★ 5
Amazing Quality, Great Price
Size: 1 Fl Oz (Pack of 1)
This stuff feels amazing. The price is right. I would repurchase this I have used several products from this brand and they have all been a hit. I have very dry, acne prone, sensitive skin- and I can use this AM and PM, under makeup as well!
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Reviewed in the United States on May 1, 2026

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