Customer ratings

Check Valve

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Excellent

from 203692 Ratings

5,0/5.0 stars

Objednavka dosla vporiadku dakujem

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3.8 (out of 33 ratings)

5 Stars

(17)

4 Stars

(5)

3 Stars

(2)

2 Stars

(6)

1 Stars

(3)

100% recommend SVB

Advantages
Shape (4)
Material (3)
Price/performance ratio (4)
Quality (3)
Mounting/Installation (4)
Colour (2)

Disadvantages
Quality (1)

by Massimo S.

4/3/2026 Verified purchase

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Art. No. 30021 one-way check valve for soft pipes

Item corresponds to the description, well-made, functional, with good sealing and adaptability to different diameters, allowing for easy connection. The valve works well the first time it's used, but in my case it needs to be used on the booster pump suction line to completely empty the bilge. At this time, since it's used in a brackish environment and with dirty water, I can't assess its durability and function over time.

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by Bernd G.

8/2/2025 Verified purchase

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Functional

practical for various hose diameters and does what it should

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Material
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by Michael P.

1/22/2021 Verified purchase

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Good product! Works flawlessly! Price great!

by Manuel P.

7/8/2020 Verified purchase

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VALVE

Adequate, excellent material, fulfills its function perfectly

by Antonio A.

5/26/2018 Verified purchase

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It fulfills its function

by David M.

5/18/2018 Verified purchase

These are simple and perfect for the job.

by Jean Luc V.

6/28/2017 Verified purchase

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Nickel for the intended function

by Evelyn S.

7/11/2016

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everything is fine

best to use in the drinking water line with a simple pump and foot switch. However, a good function is given only after a reworking of the sealing surface, but for the price that is only a small defect.

by Benjamin F.

10/6/2015 Verified purchase

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good, solid workmanship

by Rene G.

9/26/2015 Verified purchase

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works perfectly as it should

by lorenzo P.

7/10/2015 Verified purchase

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everything is perfect and fast

by Anonymous 7/6/2015 Verified purchase

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One valve for many hose diameters

by Arnold K.

6/10/2015 Verified purchase

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Easy installation, good function.

by Günther B.

9/10/2014 Verified purchase

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preiswertes und vielseitig verwendbares Produkt

by Anonymous 7/21/2014 Verified purchase

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No complaints

by Marko S.

7/10/2014

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Nice and small

Have it in front of a pressure pump (hot water). It is recommended to mount a small filter at the suction point.

by Reiner G.

12/10/2013 Verified purchase

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Could not test it, but I have no doubt

by Pierre M.

4/21/2026 Verified purchase

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check valve

Easy to assemble with the different possible diameters, but be careful, the assembly screws protrude and can cause injury. I had to grind them down.

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Shape
Material
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Mounting/Installation

by Gerald L.

12/2/2020 Verified purchase

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assembly

I cannot yet evaluate this non-return valve because it will not be mounted on the seawater valve for engine cooling until May 2021.

by Andreas S.

11/7/2018 Verified purchase

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Rückschlagventil 12"-1"

Soweit alle ok, Verarbeitung geht so.

by Sylvain P.

10/10/2016 Verified purchase

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Good value for money. On the other hand it may be necessary to avoid on installations that do not offer a lot of pressure on the non-return valve which may not be very tight.

by Martin O.

8/17/2015 Verified purchase

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gute Qualität alles Bestens.

by Gerhard M.

10/9/2025 Verified purchase in use on a Bavaria Yachtbau GmbH - Bavaria Cruiser 32 Avantgarde

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Quality mediocre

As you can see in the picture, it's held together with three screws. The tips of the screws protrude on the other side. The plastic bends between the screws.

Installation is very straightforward, though. Just saw off at the right angle, and it'll fit.

Advantages
Shape
Price/performance ratio
Mounting/Installation

Disadvantages
Quality

by Christian R.

8/21/2013 Verified purchase

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The price is reasonable for such a simple valve. However, it does not seem to shoot completely and also the passage speed is greatly reduced. There is room for improvement here

by Dirk E.

1/14/2019

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Doesn't work

installed in the correct direction and lets water through in both directions (even during the first test directly after installation). This makes it unusable and can be returned as a return. Don't trust the product anymore and order another one.

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