Check Valves

A check valve for water supply and heating systems is used in various applications where the flow of liquid or gaseous media is required only in one direction. These devices have two ports, one inlet and one outlet. They prevent fluid from flowing back through the valve, which is why they are also called one-way valves. A check valve for heating systems with a threaded connection and other variations have the main task of preventing backflow.

Types of Check Valves

Check valves for circulation pumps with brass fittings and other equipment are divided into several types, each with its own purpose and installation point on the pipeline. The main types are:

Swing valve. Works like a gate, closing the passage when the liquid flows in the wrong direction. Operates by gravity, so it is important to install it correctly.

Spring valve. Can operate in any position, unlike swing valves, and has several operating modes.

Piston valve. Equipped with a plunger ending in a plug, which rises when the liquid flows in the correct direction.

Ball valve. Used in pumps for drawing water from a well. The ball blocks the passage of liquid and rises when the pump is in operation.

How to Choose a Check Valve

A check valve can be made of different materials, and the choice depends on the installation location:

Drinking water — brass, plastic, or stainless steel.

Well water — brass, bronze, cast iron, plastic, stainless steel.

Garden hose — brass or ABS plastic.

Lawn irrigation system — anti-drain check valves made of ABS plastic.

Swimming pool — PVC or ABS, compatible with plastic pipes.

Jacuzzi — check valves made of PVDF (kynar).

Hot water recirculation system — brass or stainless steel.

Check valves for water pipes with solder connections and many other types of equipment can be found at official Ital distributors.

Advantages of Ital Products

Ital check valves are made from premium-quality materials and have a long service life. The manufacturer provides a warranty for the products and service support when needed. These are reliable components for heating and water supply systems that should be purchased only from official Ital dealers.