safety valves are high pressure, high capacity reaction type valves, designed specifically for saturated steam and superheated steam service on boiler drums.
It incorporates the unique patented eductor control that permits the valve to attain full capacity lift at a pressure 3% above popping pressure in accordance with the requirements of Section I of the ASME Boiler and Pressure Vessel Code.
The adjustable nozzle and guide rings utilize the reactive and expansive forces of the flowing steam to provide full capacity lift. Blowdown control is precise with two adjustable rings - one each on the nozzle and guide . Blowdown may be adjusted from 2 to 4% under operating conditions.
Sizes: 4” p2 6” ( 38 bar) - 3” M 6” ( 69 bar) – 3” M2 6” (181.5 bar) – 3” M2 6” (201 bar)