Rockwood Swendeman Pressure Relief valves are safety devices designed to protect pressurized vessels, lines or systems during an overpressure event. The recommendations below are general and it is the responsibility of the user to assure that installation and maintenance are in accordance with the applicable ASME Codes and local requirements.
Features:
Special Teflon® seat, making bubble-tight seals possible to over 90% of set pressures per spec API 527; not applicable to steam.
Adjustable blowdown ring.
Meets A.S.M.E. Boiler and Pressure Vessel Code, Section VIII requirements.
Especially recommended for those applications where corrosive or expensive gases benefit from stainless steel construction.
Works with set pressures to 400 psi, and temperatures from minus (-)423°F to plus (+)400°F.
Cleaned and packaged for use in O2 service in compliance with the CGA specification G-4.1.
Additional Cleaning Specifications:4WPI-SW70003
ES-660.503
GS-80
GS-40
Application:
Especially recommended where noxious or expensive liquids or gases place a premium on seal quality
Stationary Cryogenic storage tanks
Dual Safety relief systems
Overpressure relief of tanks, pipelines, vessels, pumps
Air and gas compressors
Corrosive industrial applications
Options:
Large and Extra Large Capacity
BSP threads on most sizes
Lever Operation