ECZ Hansen EZ-SRV Cartridge Relief Valves

Hansen EZ-SRV cartridge pressure-relief valves protect refrigeration pressure vessels and other refrigeration system components from excessive pressure. If an abnormally high pressure occurs, the cartridge pressurerelief valve will open to relieve the excess pressure, preventing potential damage to equipment and injury to personnel.

Hansen EZ-SRV relief valves are built in strict conformance with both ASME Boiler and Pressure Vessel Code requirements and ISO 4126 — Safety Devices for Protection of Excessive Pressure. Each valve bears the ASME code symbol of certification (UV). Valve capacities are rated by the National Board of Boiler and Pressure Vessel Inspectors (NB).

Refrigeration pressure-relief valves are recommended for replacement at least every five years. However, if a relief valve has discharged, it must be replaced as soon as possible. Valve replacement with the Hansen EZ-SRV is fast and easy — saving significant time and expense compared to traditional relief valves. The cartridge valve can be replaced more safely than previously available pressure-relief valves.

The Hansen EZ-Fitting has a 1/4" NPT connection on the side of the body. A 1/4" gauge valve installed with a tell-tale pressure gauge can indicate overpressure of a valve and if pressure is present when servicing, the 1/4" gauge valve can also be used to safely bleed-off residual pressure between the three-way manifold valve and the EZ-SRV valve.

Features:

• Cartridge design allows quick and easy replacement.
• Matched capacities to existing Hansen H5600 "R" series
• Low blowdown (15% or less) for gas service
• EZ-Fitting is a permanent fixture, available with welded or threaded end connections
• MPT inlet eliminates need for nipple
• EZ-Adapter component available for retrofit of existing Hansen relief valves
• Liquid Rated Relief Valve (EZLQ) available