Description
The Watts 0556036 3/4″ Calibrated Pressure Relief Valve LF530-C is a safety part to protect systems from excessive pressure buildup by automatically releasing fluid when pressure exceeds a set range of 50–175 PSI. It is commonly used in plumbing, HVAC systems, and industrial systems handling water, oil, or air, where pressure regulation is essential. Mounted at designated relief points, it supports preventing damage to pipes, tanks, and equipment. This valve plays an essential role in maintaining system safety and stability, by ensuring controlled pressure levels during operation in the HVAC system.









