Safety Relief Valves
ISIS Fluid Control offers a wide selection of manual pressure and safety relief valves designed to protect your systems from overpressure. Available in stainless steel, brass, bronze, and more, our relief valves deliver reliable protection and efficient pressure release in a wide range of industrial applications.
Carbon Steel Safety Relief Valves
Flanged Safety Relief Valves
Stainless Steel Relief Valves
Threaded Safety Relief Valves
Relief valves, also referred to as safety relief valves or pressure relief valves, are critical safety components used to prevent the build-up of excessive pressure within fluid and gas systems. At ISIS Fluid Control, our manual relief valves are engineered for consistent performance, ensuring operational safety and compliance across numerous industrial sectors.
These valves function by automatically opening at a predetermined set pressure to release excess pressure and then resealing once conditions return to normal. This helps to:
- Prevent system failure or rupture
- Protect pumps, pipelines, tanks, and instrumentation
- Maintain safe operating conditions in critical systems
We offer manual relief valves in a variety of materials, including:
- Stainless steel – Ideal for corrosive and high-temperature environments
- Bronze and brass – Popular in water, HVAC, and compressed air systems
- Carbon steel – Suitable for high-pressure, non-corrosive applications
Our relief valve configurations support:
High-capacity flow rates to quickly relieve pressure
Adjustable pressure settings for system-specific calibration
Compact body designs for easy integration into new or existing pipelines
Common Applications Include:
Boiler systems – To safeguard against dangerous steam or water pressure surges
Compressed air and gas systems – For safe venting and equipment protection
Water treatment plants – Preventing overpressure in pump-fed systems
Chemical and industrial processing – Managing fluid expansion and pressure spikes
HVAC systems – Protecting heat exchangers, chillers, and pipework
All ISIS Fluid Control relief valves are manufactured to international quality standards, supporting performance reliability and regulatory compliance. Whether you require valves for low-pressure relief or high-pressure protection, we provide the flexibility and material options to meet your system’s safety needs.