Every washing machine user is concerned about the quality of their laundry. However, quality doesn't always depend on the washing machine's performance and detergents.
When using the machine, water may be drawn back into the tank. To prevent this, a check valve is installed. plum washing machine water.
What is a check valve and its types
If the connection to the sewer system is incorrect, dirt from the drain can enter the tank, which increases energy costs and damages things.
A non-return valve for a washing machine, called an anti-siphon, prevents this and protects the drainage system. This small piping component is suitable for any washing machine model. Despite the flap, it does not interfere with water drainage. The quality of the wash depends on the type of non-return valve and the manufacturer.
Types of check valves
There are:
- wash valve;
- non-separable;
- segmental;
- mortise;
- wall-mounted.
They differ from each other in minor details. But, for example, when installing a washing machine model LG you will only need segment valveThis type is easy to disassemble and clean from various types of blockages.
Non-separable type good option for water supply with soft water, but that doesn't mean it will last long. Its service life is approximately 2-3 years.
If there is a lot of space between the wall and the back cover of the washing machine narrow space, That wall valve with a compact and pleasant appearance, it is an excellent option.
Its downside is the price, which is quite high.
Mortise device often installed when required to install direct drain into the sewer pipe.
It got its name from the special insert into which it is inserted.
If the valve needs to be installed into the sink siphon, then we can safely consider washing type, which will fit under any sink.
The operating principle of a check valve
The valve's operating principle is simple. It consists of a specially shaped pipe containing a spring- or ball-type valve. This device can be installed anywhere on a trap, drain hose, or sewer pipe.
During operation, water from the machine is forced into the anti-siphon and then drained into the sewer. If backwash occurs, the water cannot flow because the check valve mechanism no longer opens. The flap is created by a spring and a rubber membrane. This protects the drain system from dirty water.
With a ball valve, the safety function is performed by a rubber ball, which acts as a seal. Under water pressure, it is pressed against the membrane and then returns to its original position. The ball does not require cleaning, as the mechanism itself does this using special ribs.
Recommendations from experts
Anti-siphons are sold in every hardware store, with prices varying widely. For long-term reliability, it's best to use reputable manufacturers.
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- Back drain valve washing machine, made in Italy – SiroflexMade of polypropylene, this flush-mounted type is installed into the sewer pipe and secures the drain hose. It is a spring-loaded stainless steel device with a rubber membrane. It effectively protects the drainage system.
- Wall valve of the company Alcaplast The Czech Republic has also proven itself to be excellent. It stands out for its quality, affordability, and functionality. It fits any drain hose and reliably handles wastewater from a washing machine. It is installed as an end mount with a sewer pipe. It consists of a spring mechanism, a deflector, and a mounting point.
- Another high-quality polypropylene check valve from an Italian manufacturer MerloniIt's easy to install and mount under the sink. It features a spring and a rubber membrane.
- Scotch valve McALPINE.
- Wall-mounted mini-siphon ANI Plast.
Installing a check valve on a washing machine
Each type of check valve is installed using the same principles. You can install it yourself, but you just need to consider a few design features.
The check valve has two outlets of different diameters at opposite ends. One end connects to the trap or sewer pipe, and the other connects to drain hose washing machine. The joints are sealed, and the installation is complete.
Installing an anti-siphon isn't always necessary, especially if the washing machine is properly connected and the drain pipe is at the correct height. However, sometimes, for aesthetic reasons, the drain is placed too close to the floor. This decision can prove fatal and can lead to problems. siphon effectThis results in increased washing time, poor quality, and increased energy consumption.
A non-return valve for the drain of a washing machine is often included with the appliance, but if it is not there, you will have to purchase one in the following cases:
- if the washing machine is directly connected to a drain pipe that is located very low and there is no possibility of raising it;
- when the washing machine is connected to a siphon under the sink;
- the presence of an unpleasant smell in the washing machine and dirty clothes after washing.
Despite the simplicity of the device, it is undoubtedly an indispensable mechanism when dealing with the problem of dirty water and odor getting into the machine.
