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Safety valves

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Safety valves to protect the pipeline system and equipment from destruction!

Safety valves protect piping systems and equipment from mechanical failure as a result of exposure to overpressure. They operate on the principle of automatic discharge of excess liquid, steam and gas mixtures from pipeline systems when the pressure exceeds the established norms into the low pressure area or into the atmosphere. Safety valves are indispensable devices, as they allow you to save a lot of equipment: pumps, valves, pipeline system in case of emergency situations.

Safety shut-off valves also ensure that the discharge of the mixture is stopped when the pressure in the system is restored.

The safety valve, the price of which is linked to the operating mode, is by design a direct-acting valve, which, unlike other existing designs of protective valves, pressure regulators, operates directly from the working medium.

The main causes of dangerous overpressure:

Due to improper operation of the equipment;
Due to the increase in temperature;
Due to errors in the thermal mechanical circuit;
Because of internal physical processes.

Safety valves are used in the operation of industrial and domestic pipelines that operate under pressure.

Classification of safety valves, valves:

According to the method of exposure

direct impact - counteraction to the pressure of the working environment;
indirect impact - control of third-party pressure sources - electricity;

By the type of impact on the locking organ

spring – the created pressure from the influence of the working medium is counteracted by the compression force of the safety spring. They are adjusted to different actuation pressure by selecting the appropriate spring.
cargo, lever-cargo – the force on the locking body, which is created by the working environment, is counteracted by the force from the load through the valve stem.
magneto-spring - through an electromagnetic drive, which can provide additional clamping of the locking element to the seat or forced opening of the valve.

Advantages of using safety devices

Simplicity of design, which guarantees ease and speed of repair;
Small size and weight;
Price;
The operability of the pipeline in conditions of high pressure and sudden pressure drops.

One of the varieties of safety valves without liquid discharge is the so-called bypass (overflow) valves.

Bypass valves are a special type of safety valves used to regulate the pressure of the medium in the system at the required level by passing it through a branch of the pipeline. This applies to liquid and gaseous media. Pressure stabilization in the valve is achieved due to the design of the shut-off element, which eliminates the dynamic effect of the working medium on the movable part of the shut-off element.

You can buy a safety valve from our company. In Salutech we will select the necessary fittings for you to choose from several suppliers!