The most important thing first
Wafer-check valves, also called wafer check valves, are particularly compact and cost-efficient. The Stop Silent AS54 is mounted directly between two piping flanges, is space-saving, and reduces water hammer noticeably due to its cone membrane. We have the largest functional opening among wafer valves. At the same time it is suitable for many media and designed for a long service life.
At Lasso Technik AG we do not view the wafer check valve as a niche solution, but as a practical answer to tight installation situations. Especially where space, maintenance access and operational safety converge, the wafer design shows its strengths.
What makes the Stop Silent AS54 so space-saving?
The Stop Silent AS54 is mounted directly between two pipe flanges. This makes the cone nearly disappear inside the pipe; what remains visible is essentially only the flange thickness plus gaskets or the nameplate with grounding opening. According to the manufacturer, it is the most space-saving valve worldwide in terms of flange thickness.
- Compact design with very little installation space
- Largest functional opening among wafer valves on the market
- Can be used in horizontal and vertical lines with upward flow
- Easy to remove and service between flanges
What are the operational advantages of a wafer check valve?
In operation, size isn't the only factor; the response to pressure changes matters as well. The cone membrane reacts immediately, closes gently, and opens under control, thereby effectively minimizing water hammer and pressure surges. This is precisely why the valve is attractive for many systems where smooth flow is essential.
Lasso Technik AG
For which media and industries is the wafer check valve suitable?
The range is broad: the valve is suitable for water, oily, pasty, sticky, sandy, or gaseous media. Notable examples include drinking water, chemical applications, the petrochemical industry, shipbuilding, and HVAC systems.
Also in material selection and spare parts availability, the company relies on long service life cycles. This suits projects where plants are not replaced after a few years but operated reliably for decades.
Why do planners choose the Stop Silent AS54?
- Less material usage than conventional flange-bodied check valves
- Results in a cheaper solution
- Reliable sealing through the cone membrane
- Spare parts available for decades
- Technical support from experienced engineers and technicians
What matters, from our experience, is not only the initial purchase but the total lifecycle. A wafer check valve convinces where compact installation, maintenance friendliness, and long-term availability come together.
What should be considered about installation orientation?
| Installation situation | Note |
|---|---|
| Horizontal | Suitable |
| Vertical | Suitable with upward flow |
| Between two flanges | Direct installation inside the pipeline |
Frequently asked questions
Is a wafer check valve suitable for drinking water?
Can I also use the valve in vertical pipes?
How maintenance-friendly is the Stop Silent AS54?
How does the wafer design differ from a valve with a flange housing?
Anyone looking for a wafer check valve will find a solution with the Stop Silent AS54 that combines space, operating safety, and cost efficiency. For projects with tight space, many media, or high requirements for pressure surge reduction, this is a convincing approach.
If you want to check the right version for your application, we can assist you in the selection with technical know-how and practical advice.
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Lasso Technik AG, Basel