Relief valves
Safety Valves
Safety valves are a key component for protecting hydraulic systems from excessive pressure. Their primary function is to quickly and efficiently discharge excess fluid to a reservoir or return line, preventing damage to pumps, cylinders, and other hydraulic components. Using safety valves ensures reliable system protection against overpressure, contributing to safe and efficient operation of the entire installation.
How Does a Safety Valve Work?
An overload safety valve consists of a body, a spring regulating the opening pressure, and a flow release mechanism. When system pressure exceeds the set threshold, the safety valve opens, allowing fluid to flow to the return circuit or tank. This quickly reduces pressure, protecting the system from damage.
The robust construction of safety valves ensures durability and resistance to harsh operating conditions. Valves made from high-quality materials, such as chrome-molybdenum steel or aluminum, are resistant to corrosion, wear, and high temperatures. Sealing elements further guarantee tightness and long service life.
Hydraulic Safety Valves – Technical Parameters and Pressure Adjustment
Our range includes hydraulic safety valves with a wide opening pressure adjustment range, from 5 bar up to 350 bar. This allows precise adaptation of the valve to the specific requirements of various hydraulic systems, from light-duty circuits to advanced high-pressure industrial installations.
Pressure adjustment is available through several mechanisms: a rotary knob for convenient quick settings, a hex screw for precise and secure adjustments, and a protective cap to prevent accidental tampering. Many models are also equipped with ports for pressure gauges, enabling real-time monitoring of operating pressure.
Other Technical Parameters of Safety Valves Include:
- Maximum flow rates ranging from a few to several hundred liters per minute, allowing use in compact systems as well as large industrial installations.
- Operating temperature range from -20°C to +80°C, depending on the valve model and sealing materials.
- Construction materials, including chrome-molybdenum steel and aluminum, ensuring high resistance to corrosion, wear, and mechanical stress.
- Thread types (e.g., BSP, NPT) and mounting standards, compatible with a wide range of hydraulic systems and equipment.
Overload Relief Valves – A Specialized Type of Safety Valve
Overload relief valves combine the functions of safety valves and relief valves, protecting hydraulic systems from overpressure while allowing adjustable pressure settings. They are primarily used in systems requiring maximum working pressure control, particularly in fixed-displacement pump systems, helping to prevent overloads and excessive component wear.
Applications of Hydraulic Safety Valves
Hydraulic safety valves are widely used across industries, including construction, agriculture, industrial machinery, power supply, and cooling systems. They protect critical hydraulic components from overpressure, preventing failures and production downtime.
Explore our full product range to select reliable solutions that ensure protection and stable operation of hydraulic systems under the most demanding conditions.
