Relief pressure regulators for maintaining constant pressures in gas consumption equipment or for relieving brief pressure surges in control systems, in particular upstream of large-scale burners, circulation pressure control regulators for compensating for pressure fluctuations occurring on compressors or fans as the result of different flow rates. The pressure regulators comply with the requirements of EN 88, Class A, Group 2.
DN: 25 to 150,
connection: thread or flange,
pu: max. 200, 500 or 1000 mbar,
opening pressure range pd: 10 to 500 mbar.