INSTALLATION, OPERATION, &
MAINTENANCE MANUAL
TITLE: F84L Series Liquid Relief Valve Rev. H Page 4 of 15
2.0 DESCRIPTION, OPERATION, SERVICE ENVELOPE,
INSTALLATION, and STARTUP
2.1 DESCRIPTION / OPERATION
The FLOW SAFE F84L Series liquid relief valve is a direct-acting spring-loaded relief valve, suitable for
liquid service. The Type F84L is plastic-seated with elastomeric seals.
Orifice sizes are available in -2, -3, -4, -8, -G, and -J with set pressures from 30 to 24,277 psig (depending
on the orifice size).
Blowdown is nonadjustable, designed to be a maximum of 20% for the -3, -4, -8, -G, and –J. For the -2
orifice, blowdown may approach 30-35% whether the valve pops fully open or partially opens at low flow
rates.
To Next Page
Loading...
