Constant Pressure Relief Valve
Constant Pressure Relief Valve
Blast valves are produced as relief valve on Positive Pressure CBRN Systems produced as per NATO AEP54 standards. The blast valves discharging CBRN system overpressure composed under proper conditions, are adjustable. Blast valves adjustable to requested pressure which have spring structure, can also be produced in special dimensions at user’s request.
Constant Pressure Relief Valve
Purpose
A constant pressure relief valve is used to automatically release excess pressure in a pressurized container at a set point. This ensures that the pressure inside the container does not stay dangerously high, especially during situations where it may constantly rise. Constant pressure relief valves are commonly used in industrial applications and can be found in equipment such as fire suppression systems, steam boilers, air compressors, and other similar equipment.
Where to use?
Constant pressure relief valves are widely used in industrial applications. These valves can be used in various equipment such as steam boilers, air compressors, pressurized vessels and tanks, fire suppression systems, chemical processes and refineries, water treatment systems, and food processing equipment. They are also commonly used in the marine industry and energy sector.
Types
Constant pressure relief valves can be found in various types. The most commonly used types are:
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Mechanical relief valves: These types of valves automatically open and reduce pressure when a certain pressure level is reached. This helps to prevent excess pressure that can occur due to temperature changes.
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Pilot-operated relief valves: These types of valves are technologies that provide higher safety in pressurized systems. A pilot valve controls when the relief valve will open and determines the pressure required to open the valve.
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Thermal relief valves: These types of valves, which are used in hot water systems, automatically open and reduce pressure in the event of overheating. This helps prevent excessive heating in the system.
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Vacuum breaker relief valves: These types of valves reduce very high pressures through vacuum breaker mechanisms. They are especially used in water systems and prevent backflow of water.
Features
Here are some features of constant pressure relief valves:
- Set pressure level: Constant pressure relief valves prevent the formation of excess pressure by automatically opening and closing at a specified pressure level.
- High flow rate: These valves usually have high flow rates, making them suitable for large volume pressurized equipment.
- Durability: Constant pressure relief valves designed for industrial applications are built to withstand harsh conditions. They are often made of durable materials such as zinc alloys, stainless steel or bronze.
- Easy maintenance: Some constant pressure relief valves have a modular design that can be easily dismantled and reassembled, making maintenance and repair operations easy.
- Cost-effectiveness: Constant pressure relief valves can be more affordable than other safety devices and provide a cost-effective solution because they offer an important safety measure.
Test Standarts
Constant pressure relief valves are subject to many test procedures and must meet the requirements set by international standards. Some of the constant pressure relief valve test standards include:
- API 527: Seat Tightness of Pressure Relief Valves
- ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, UG-125 Requirements
- ISO 4126: Safety valves – General requirements
- EN 764-7: Pressure equipment – Part 7: Safety devices for preventing overpressure – Application and installation of safety devices excluding stand-alone bursting disc safety devices
These tests measure the pressure resistance, leak prevention, opening time, repeatability, and sealing characteristics of constant pressure relief valves. These tests are important to ensure that the valves operate safely and correctly, and are mandatory by legal regulations in many countries.
What does it do?
Constant pressure relief valves are used to automatically release excess pressure at a set point in a container. This ensures that the pressure inside the container does not stay dangerously high, preventing potential hazards. Constant pressure relief valves are commonly used in industrial applications and are especially common in large volume pressurized equipment, such as steam boilers, air compressors, fire suppression systems, pressurized vessels, and tanks.