Page 23 - demico-industry

DEMICO 3” Reset Relief Valves are threaded and can be set to 1,500 to 3,500 lbs. pres-
sure ratings.

DEMICO reset relief valve is used as a safety relief valve on slush pumps, mud man-
ifolds, and other equipment to protect against damaging pressure surges. The valve
pressure setting is indicated by a pointer and is adjustable over the entire operating
range.
“ The pressure setting can be changed while the valve is under pressure.
“When the preset pressure is exceeded, the valve snaps to the fully open position.
After pressure is relieved, the valve is closed by a trip-free reset lever.
“Setting accuracy is not affected by vibration pressure surges, or valve operation.
“Pressure setting scales are available in psi, bars, and MPa.
“The stainless-steel valve piston seats against an elastomer seal which is out of the
direct path of flow Rapid valve opening and isolation of the seal minimize erosion.
“The valve is fully enclosed for safety and to retain the protective grease coating on
all moving parts in the bonnet assembly.
“No shear pins or other parts are needed for resetting to the closed position.
“A m annual release button in the bonnet assembly permits easy and rapid opening
of the valve
“regardless of line pressure.
“The position of the release button indicates whether the valve is open or closed.
“Relief pressure can be set at any value over the entire range of the valve.

Reset Relief Valve automatically snap to a full open position when the set pressure is
reached.
DEMICO Reset relief valve come equipped with a position release button that indi-
cates at a glance whether the valve is open or closed. DEMICO Reset relief valve is the
best stand-alone mechanically operated Reset relief valve in the market Place today.