Safety relief valve

The safety relief valve is a direct–acting locking mechanism. If the pressure inside the pipeline exceeds the permissible pressure, the flap opens and the excess substance is discharged outside. After normalization, the safety relief valve automatically stops the discharge. The advantages of KPS include high reliability, simple design, quick installation, and a wide range of products. The Salutech company offers to buy a relief safety valve at favorable prices.

Purpose of the KPS

Universal mechanisms are used in pipelines for various purposes. In addition to gas mains, relief spring safety valves are embedded in heating and water supply networks. The main purpose of the KPS is the prevention of emergency situations. The shut-off valves prevent damage to the networks due to:

• Hardware problems;
• Temperature increases;
• Errors in thermal and mechanical circuits;
• Uncontrolled physical processes.

The devices are used to prevent mechanical destruction of pipelines, leaks, accidental fires. In addition to pipes, the KPS ensures the safety of pumps, shut-off and control units.

Types of safety relief valves

Regulators produce from:

• Aluminum;
• Brass;
• Cast iron;
• Stainless alloys.

The internal section corresponds to the diameter of the pipeline (for example, 25, 50 mm). Coupling and flange connections are required to connect the valves of the safety relief valves. According to the method of opening, there are full-lift (fast) and low-lift (slow, with low throughput) mechanisms.

The principle of operation of the KPS

During operation, the safety relief valves are closed. Springs, membranes, or levers press the spool against the seats. With an increase in pressure above the permissible level, the force of attraction weakens. The spool moves, the lid opens automatically.

The KPS discharges gas into the atmosphere or branches of the main network. As a rule, the pressure in the discharge pipelines connected to the safety valves is much lower than in the central line. After the reset, the spool returns to the normally closed position.

In order for the cover of the gas safety relief valve to close, it is necessary to drain the pressure 10-15% lower than the normal level. Because sealing requires more effort than maintaining it in a closed position.

Areas of application of KPS

Safety relief valves are mounted on:

• Gas control points and installations;
• Compressed air pipelines;
• The highways of the production lines of the chemical and gas industries.

The devices are installed separately or integrated into regulators. What settings are set on the safety relief valve? The operating limit is usually equal to the operating pressure plus 25%. Together with the KPS, shut-off modules are used to cut off the fuel supply simultaneously with the discharge.

Buy KPS in Salutech

To order shut-off valves, add the product to the cart or contact the manager. A support line specialist will consult, recommend the optimal types of gas safety relief valves, arrange delivery in Moscow, Russia. Pipeline components are certified and comply with Russian standards.

Apply for the purchase of safety relief valves for technological devices via the website or by e-mail. The purchased goods are guaranteed. The selling prices for relief safety valves are lower than the average in the Moscow region. We have everything you need for installation and maintenance of gas pipelines!