For a sample line, the severe service (pressure reduction) is handled by a VREL. The BPR/RV only has to control pressure between 20 psig (1.4 barg) and atmosphere. This allows precise pressure control, eliminates plugging and helps ensures high reliability. Both lower and higher control pressures are available including 5 psig (0.3 barg), 7 psig (0.5 barg), 12 psig (0.8 barg), 28 psig (1.9 barg) and 42 psig (2.9 barg).
Sentry Equipment Corporation, 856 E. Armour Road, Oconomowoc, WI 53066-0127. Tel: 262-567-7256; Fax: 262-567-4523.