Fisher MR98 Series
MR98 Series is used for backpressure or relief applications in liquid, gas, air, and steam service.
The Types MR98L, MR98H, and MR98HH are direct-operated and spring-loaded. The Types MR98LD, MR98HD, and MR98HHD use additional pressure loading to maintain relief differential pressures, backpressures or for remote setpoint adjustment.
Available Constructions
Type MR98L: Backpressure regulator / relief valve for spring settings range from 2 to 38 psig / 0.14 to 2.6 bar. 1/4 in. to 1 in. body sizes only.
Type MR98H: Backpressure regulator / relief valve for spring settings range from 5 to 200 psig / 0.34 to 13.8 bar
Type MR98HH: Backpressure regulator / relief valve for spring settings range from 150 to 375 psig /10.3 to 25.9 bar
Type MR98LD: Differential pressure relief valve for differential set pressures range from 2 to 38 psi / 0.14 to 2.6 bar with maximum inlet / outlet pressure up to 150 psi / 10.3 bar. 1/4 in. to 1 in. body sizes only
Type MR98HD: Differential pressure relief valve for differential set pressures from 5 to 200 psi / 0.34 to 13.8 bar with maximum inlet / outlet pressure up to 300 psi / 20.7 bar
Type MR98HDP: Differential pressure relief valve for differential set pressures range from 5 to 200 psi / 0.34 to 13.8 bar with maximum inlet / outlet pressure up to 600 psi / 41.4 bar
Type MR98HHD: Differential pressure relief valve for differential set pressures range from 150 to 375 psi / 10.3 to 25.9 bar with maximum inlet / outlet pressure up to 400 psi / 27.6 bar
Download a datasheet