The principle of the check valve of the washing machine

When installing the washing machine, take care of its complete protection from various damages, especially from the "siphon". A check valve for a washing machine is designed to provide protective functions from this negative effect. We consider what a check valve is, what its purpose and principle of operation is.

Anti-siphon mortise

Purpose of anti-siphon

Anti-siphon or check valve It is designed to protect the drainage system from the return of sewage and water back into the washing machine drum. This happens quite often when the washer is installed incorrectly. Wrong connection to the sewer may cause dirty, waste fluid to enter the machine.It stains the newly washed clothes, besides it increases the consumption of electricity by the heater. In the typewriter appears unpleasant smell.

Anti-siphon valve does not impede the discharge of dirty water from the drum. But it works great if you need to block the road to water that is trying to return from the sewer back to the tank. Using special valve, it will reliably block the flow of fluid, and will not allow it to leak.

Valve types

There are quite a few types of anti-siphon. Before buying, explore the available options and choose your own. There are five variants of such valves on the market:

• whole;
• segmented;
• wall;
• requiring embedding;
• installed under the sink.

There are no significant differences between them, all devices are designed for one purpose - to protect the machine from the return of dirty water and to ensure the regular descent of the waste liquid. However, the connection of specific styralok to the drain has its own characteristics.

If the water in your water supply is far from perfect, it is best to purchase segmented anti-siphon. This will ensure the possibility of subsequent analysis and cleaning of the system from water debris and various deposits.

Important! Even with good quality water from the pipeline, it is necessary to change the valve every few years. The procedure is simple, you can do it yourself.

Anti-siphon wall

Walls anti-siphons have a high price. Their use is justified in the case when the drain is located in a small space between the walls and the outer panel of the washing machine. This type of valve is very compact and will significantly save space by sitting along the wall. Among other things, the anti-siphon of this type looks quite stylish and can become part of the interior.

Valve mortise type ideal for draining directly through a sewer pipe. In this case, the drain is supplied with a tie-in, and a check valve is installed on it. Anti-siphon set under the sink, usually combined with siphon sinks. It is suitable for almost every siphon model, does not take up much space, is practical and easy to handle.

Principle of operation

The device of the anti-siphon valve is not complicated. The principle of its operation is based on the following effect. A special spring valve or ball type valve is inserted into the tube.Next, it is installed on discharge drain system, siphon sink or drain. During the execution of the drainage program, the flow of wastewater, enhanced by pressure, easily passes through it and goes to the sewer.

In the event of a siphon effect, namely the return of dirty water, the valve reliably closes the hose and prevents it from entering the tank.

In other words, the fluid is easily removed from washing machine drum and freely passes through the valve, but its return is no longer possible. Spring anti-siphons achieve this with a rubber membrane and a steel spring that overlaps the drain. In the valve ball typeThis function is performed by a ball made of soft material.

Installation and alternative devices

Essentially, anti-siphon is a tube complex construction, the ends of which differ in diameter. One end cuts into the drain or connects to the siphon, and the other end is connected to the drain system via a hose. All system joints must be sealed and periodically checked for leaks.

It is worth mentioning that the purchase and installation of anti-siphon is not always worth the money spent. According to professionals, the acquisition of this valve is relevant in two cases.

1. Connecting the washer to the drain directly due to the inability to slightly raise it. It is necessary to install the valve if the pipe is too low.
2. You had to connect the drain hose to siphon sinks. If the drain hose has a standard configuration and is installed according to all the rules, then the purchase of an anti-siphon does not make sense.

Anti-siphon will undoubtedly make life easier if you often encounter the return of dirty water. Valve designed to protect washing machine drain, you can install it yourself, but this does not mean that you need to do this just in case. Carefully review the entire drain system before purchasing a check valve type and decide if you need it.